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Archives for Chicago's hourly weather data updated 24-48 hours after end of each day. MOBILE CHGOWX.COM ...
Weather conditions on bar directly above are near Lakefront. Weather conditions with Moon are O'Hare (official).

Monday, May 12, 2014

Chicago Weather O'Hare Data May 12 2014 -- RAIN, THUNDERSTORMS

1223:51N 98.00Thunderstorm Light RainBKN030CB BKN080 OVC100666596%NANA29.901012.1
1222:51S 1810.00OvercastFEW025 BKN040 OVC080727197%NANA29.861010.8
1221:51NE 1210.00OvercastSCT028 BKN060 OVC250716684%NANA29.861010.8
1220:51NE 12 G 2010.00OvercastBKN048 BKN060 OVC095736679%NANA29.841009.9
1219:51NE 310.00ThunderstormBKN037CB OVC047726784%NANA29.811009.10.28
1217:51S 1210.00Mostly CloudySCT045 SCT055 BKN250846757%NA8729.811009.0
1216:51S 1210.00OvercastSCT036 SCT055 OVC250836759%NA8629.811009.1
1215:51S 1410.00OvercastSCT037 OVC250836657%NA8529.831009.8
1214:51S 1310.00OvercastSCT033 BKN050 BKN090 OVC250816661%NA8329.851010.4
1213:51S 1410.00OvercastFEW028 SCT049 OVC250816762%NA8329.861010.6
1212:51SW 1310.00OvercastSCT027 BKN050 OVC2508066806962%NA8229.871011.1
1211:51SW 1310.00OvercastSCT025 BKN039 OVC250806764%NA8229.891011.6
1210:51SW 18 G 3010.00OvercastBKN025 BKN070 OVC300786667%NA8029.881011.4
1209:51SW 14 G 2210.00OvercastFEW021 BKN060TCU OVC300776669%NA7929.881011.4
1208:51S 18 G 2810.00OvercastFEW017 FEW060 OVC300756674%NANA29.861010.7
1207:51S 1210.00OvercastFEW014 FEW060 BKN240 OVC300716581%NANA29.861010.8
1206:51S 910.00OvercastFEW012 FEW060 SCT110 OVC3006964696484%NANA29.861010.90.01
1205:51S 810.00OvercastFEW080 BKN130 OVC220666184%NANA29.861010.80.01
1204:51S 1010.00Light RainSCT011 SCT040 BKN055 BKN220645984%NANA29.861010.9
1203:51S 710.00OvercastSCT014 BKN016 BKN050 OVC220645984%NANA29.891011.6
1202:51S 1010.00Partly CloudyFEW045 SCT070 SCT220645881%NANA29.881011.4
1201:51SE 910.00Mostly CloudySCT035 SCT070 BKN190645881%NANA29.901012.0
1200:51S 910.00Partly CloudyFEW070 SCT120 SCT1906558696578%NANA29.911012.5

CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ... | NWS Chicago Office OBSERVED WEATHER REPORTS

RAINFALL AMOUNTS FROM THE PERIOD 7:00 AM MONDAY, MAY 12, 2014 TO 7:00 AM TUESDAY, MAY 13, 2014.

ILLINOIS                                       RAIN
  LOCATION (COUNTY):                           FALL (IN)

  LAKE BLUFF 1W (LAKE).........................4.06
  HEBRON (MCHENRY).............................3.82
  GLENCOE (COOK)...............................3.56
  BOTANIC GARDENS (COOK).......................3.30
  LAKE FOREST 2NNE (LAKE)......................3.30
  WOODSTOCK 5NW (MCHENRY)......................3.12
  ROCKTON 1ESE (WINNEBAGO).....................3.07
  HARVARD (MCHENRY)............................2.57
  LAKE ZURICH (LAKE)...........................2.50
  BARRINGTON (LAKE)............................2.48
  MUNDELEIN (LAKE).............................2.48
  ELK GROVE VILLAGE 1ESE (COOK)................2.37
  WOODSTOCK 4SW (MCHENRY)......................2.34
  BEACH PARK 1W (LAKE).........................2.33
  GURNEE 2W (LAKE).............................2.28
  ELGIN (KANE).................................2.26
  ELGIN 1S (KANE)..............................2.26
  SPRING GROVE 2N (MCHENRY)....................2.21
  WADSWORTH 1SSE (LAKE)........................2.16
  WONDER LAKE 1WNW (MCHENRY)...................2.16
  LAKE VILLA 1SSW (LAKE).......................2.14
  OHARE (COOK).................................2.08
  ZION (LAKE)..................................2.06
  ROSCOE 2ESE (WINNEBAGO)......................2.06
  ROSCOE 2SE (WINNEBAGO).......................2.06
  WOODSTOCK 1SSW (MCHENRY).....................2.02
  WAUKEGAN (LAKE)..............................2.02
  WINNETKA 1ESE (COOK).........................2.01
  BYRON 3N (OGLE)..............................2.00
  HOFFMAN ESTATES 5W (COOK)....................1.99
  MUNDELEIN (LAKE).............................1.98
  ELGIN (KANE).................................1.94
  BULL VALLEY 2WNW (MCHENRY)...................1.92
  ROUND LAKE 2WNW (LAKE).......................1.89
  GURNEE 2NE (LAKE)............................1.86
  STERLING 4NE (LEE)...........................1.85
  MILFORD (IROQUOIS)...........................1.80
  WAUKEGAN 2N (LAKE)...........................1.78
  HIGHWOOD 1S (LAKE)...........................1.74
  YORKVILLE 1NE (KENDALL)......................1.68
  ST. CHARLES 6NW (KANE).......................1.66
  LODA (IROQUOIS)..............................1.65
  ASHTON (LEE).................................1.64
  WINTHROP HARBOR 1SSW (LAKE)..................1.59
  PECATONICA 2S (WINNEBAGO)....................1.59
  SCHAUMBURG  2E (COOK)........................1.52
  MCHENRY (MCHENRY)............................1.51
  WHEELING (COOK)..............................1.41
  FOX LAKE 2SE (LAKE)..........................1.40
  ST CHARLES 1SW (KANE)........................1.35
  DIXON 3NNW (LEE).............................1.33
  RIVERWOODS (LAKE)............................1.33
  LINCOLNSHIRE 1.3WSW (LAKE)...................1.30
  POLO (OGLE)..................................1.29
  BUCKLEY (IROQUOIS)...........................1.28
  LA SALLE (LA SALLE)..........................1.27
  ELBURN (KANE)................................1.26
  ELGIN 2WNW (KANE)............................1.25
  ROCKFORD 3NE (WINNEBAGO).....................1.25
  BUFFALO GROVE 2N (LAKE)......................1.24
  ELBURN (KANE)................................1.22
  WATSEKA (IROQUOIS)...........................1.22
  GIBSON 3WNW (FORD)...........................1.21
  WATSEKA 6.9WNW (IROQUOIS)....................1.21
  WINNETKA 1S (COOK)...........................1.20
  LAKEMOOR 2SE (LAKE)..........................1.20
  PARK RIDGE (COOK)............................1.17
  ELGIN 1WSW (KANE)............................1.17
  ELBURN 3NNE (KANE)...........................1.14
  GENEVA 2WSW (KANE)...........................1.14
  ELGIN 2W (KANE)..............................1.14
  GLEN ELLYN 1NE (DU PAGE).....................1.11
  EARLVILLE 3S (LA SALLE)......................1.10
  BELVIDERE (BOONE)............................1.08
  GENEVA 1SSW (KANE)...........................1.07
  ST CHARLES (KANE)............................1.05
  BATAVIA (KANE)...............................1.01
  BATAVIA 1WNW (KANE)..........................1.01
  CARY (MCHENRY)...............................1.01
  ELK GROVE VILLAGE 2WSW (COOK)................0.98
  WEST CHICAGO (DU PAGE).......................0.97
  AMBOY (LEE)..................................0.94
  ISLAND LAKE 1SSW (MCHENRY)...................0.93
  CAROL STREAM (DU PAGE).......................0.91
  WEST CHICAGO 3N (DU PAGE)....................0.90
  LOMBARD 1NNW (DU PAGE).......................0.90
  ASHKUM 5.6E (IROQUOIS).......................0.89
  NORTH AURORA 2NE (KANE)......................0.88
  ROCHELLE (OGLE)..............................0.88
  AMBOY (LEE)..................................0.86
  ROCKFORD 1NW (WINNEBAGO).....................0.84
  ST ANNE (KANKAKEE)...........................0.80
  MOMENCE (KANKAKEE)...........................0.77
  CAPRON (BOONE)...............................0.74
  GENOA (DE KALB)..............................0.73
  CHEBANSE (KANKAKEE)..........................0.73
  STEWARD (LEE)................................0.73
  LOMBARD 1NNW (DU PAGE).......................0.72
  SUGAR GROVE 1ENE (KANE)......................0.72
  EVANSTON 1SSE (COOK).........................0.70
  LANSING (COOK)...............................0.70
  ALGONQUIN 1N (MCHENRY).......................0.68
  YORKVILLE 1W (KENDALL).......................0.67
  ROCKFORD (WINNEBAGO).........................0.66
  FAIRBURY (LIVINGSTON)........................0.65
  LISBON 4NE (KENDALL).........................0.65
  OTTAWA 2N (LA SALLE).........................0.65
  OTTAWA (LA SALLE)............................0.65
  PARK FOREST (COOK)...........................0.65
  SUGAR GROVE 1NE (KANE).......................0.63
  YORKVILLE 2SE (KENDALL)......................0.62
  GLENWOOD 2ESE (COOK).........................0.61
  MENDOTA (LA SALLE)...........................0.60
  PONTIAC (LIVINGSTON).........................0.60
  ROCHELLE (OGLE)..............................0.60
  PONTIAC 1ESE (LIVINGSTON)....................0.59
  NEW LENOX 3E (WILL)..........................0.59
  VILLA PARK 1NW (DU PAGE).....................0.58
  SHABBONA (DE KALB)...........................0.58
  GLEN ELLYN 2SSE (DU PAGE)....................0.57
  MONTGOMERY 1SSE (KENDALL)....................0.57
  PERU (LA SALLE)..............................0.57
  PONTIAC 1SE (LIVINGSTON).....................0.56
  DWIGHT (LIVINGSTON)..........................0.55
  SHERIDAN 3SSE (LA SALLE).....................0.55
  NEW LENOX 2SE (WILL).........................0.55
  WILMINGTON 6NW (WILL)........................0.55
  PALATINE 1E (COOK)...........................0.54
  SCHAUMBURG 3WSW (COOK).......................0.54
  COAL CITY (GRUNDY)...........................0.54
  PLAINFIELD 5SW (KENDALL).....................0.54
  CHANNAHON (WILL).............................0.53
  EARLVILLE 8SSE (LA SALLE)....................0.53
  AURORA (KANE)................................0.52
  ORLAND HILLS 1SE (COOK)......................0.51
  ARLINGTON HEIGHTS 2NNW (COOK)................0.51
  KANKAKEE 3SE (KANKAKEE)......................0.50
  RICHTON PARK (COOK)..........................0.50
  TINLEY PARK 3NW (COOK).......................0.49
  MINOOKA (GRUNDY).............................0.49
  BRACEVILLE (GRUNDY)..........................0.48
  CHENOA 4NNW (LIVINGSTON).....................0.48
  JOLIET (WILL)................................0.48
  BOURBONNAIS (KANKAKEE).......................0.47
  MORRIS (GRUNDY)..............................0.47
  COAL CITY 4NNW (GRUNDY)......................0.46
  LANSING (COOK)...............................0.46
  HARWOOD HEIGHTS 2NNE (COOK)..................0.46
  CARBON HILL 3.1N (GRUNDY)....................0.46
  MENDOTA 2SE (LA SALLE).......................0.46
  CHANNAHON 1NNE (WILL)........................0.46
  WILMINGTON 3SE (WILL)........................0.46
  NEW LENOX 4SE (WILL).........................0.46
  MORRIS 1SW (GRUNDY)..........................0.45
  MORRIS 6ESE (GRUNDY).........................0.45
  MONTGOMERY 2SSE (KENDALL)....................0.45
  BONFIELD 4NNE (KANKAKEE).....................0.45
  OTTAWA 1NW (LA SALLE)........................0.45
  ELMHURST 1ESE (DU PAGE)......................0.44
  MAZON 0.5ENE (GRUNDY)........................0.44
  OGLESBY 0.4N (LA SALLE)......................0.44
  OGLESBY 1ESE (LA SALLE)......................0.44
  JOLIET 3WNW (WILL)...........................0.44
  MANHATTAN 2SE (WILL).........................0.43
  JOLIET 2N (WILL).............................0.43
  FLOSSMOOR (COOK).............................0.42
  NORTH RIVERSIDE (COOK).......................0.42
  BONFIELD 4WSW (KANKAKEE).....................0.42
  CRETE 3E (WILL)..............................0.42
  LISLE (DU PAGE)..............................0.41
  JOLIET (WILL)................................0.41
  HOMEWOOD (COOK)..............................0.40
  ELMHURST (DU PAGE)...........................0.40
  DWIGHT 4NNW (GRUNDY).........................0.40
  YORKVILLE (KENDALL)..........................0.40
  PLAINFIELD 1SW (WILL)........................0.40
  LISLE MORTON ARB (DU PAGE)...................0.40
  ROMEOVILLE (WILL)............................0.39
  WESTMONT 1SSE (DU PAGE)......................0.38
  MANHATTAN 5ENE (WILL)........................0.38
  MANHATTAN (WILL).............................0.38
  DE KALB 1W (DE KALB).........................0.37
  AURORA 4SE (DU PAGE).........................0.37
  LOCKPORT 1SE (WILL)..........................0.37
  OAK BROOK (DU PAGE)..........................0.37
  WESTMONT (DU PAGE)...........................0.37
  ALSIP (COOK).................................0.36
  PALOS PARK 1SW (COOK)........................0.36
  ORLAND PARK 5WNW (WILL)......................0.36
  KANKAKEE (KANKAKEE)..........................0.36
  PLAINFIELD (WILL)............................0.36
  DARIEN 1NNE (DU PAGE)........................0.35
  PEOTONE (WILL)...............................0.35
  PEOTONE (WILL)...............................0.35
  OAK PARK 1NNE (COOK).........................0.34
  AURORA 4SE (DU PAGE).........................0.34
  PEOTONE (WILL)...............................0.34
  MARSEILLES (LA SALLE)........................0.34
  BOLINGBROOK 3NE (DU PAGE)....................0.33
  STREATOR 4ENE (LA SALLE).....................0.33
  DE KALB (DE KALB)............................0.32
  LA GRANGE PARK 1SSW (COOK)...................0.32
  BOURBONNAIS 2NNE (KANKAKEE)..................0.32
  OAK PARK 2S (COOK)...........................0.31
  OAK PARK 1SW (COOK)..........................0.31
  CORTLAND (DE KALB)...........................0.31
  CRETE 3SSW (WILL)............................0.31
  OAK LAWN (COOK)..............................0.30
  COUNTRYSIDE 1ENE (COOK)......................0.30
  COUNTRYSIDE 1NNE (COOK)......................0.30
  LISLE 1SE (DU PAGE)..........................0.30
  CHICAGO 6ESE (COOK)..........................0.29
  LINCOLNWOOD 2E (COOK)........................0.29
  BURR RIDGE 2SW (DU PAGE).....................0.29
  STREATOR (LIVINGSTON)........................0.28
  WORTH (COOK).................................0.27
  CHICAGO 5NNW (COOK)..........................0.27
  DE KALB (DE KALB)............................0.27
  RAVENSWOOD MANOR (COOK)......................0.25
  STREATOR 1WSW (LA SALLE).....................0.25
  MIDWAY COOP (COOK)...........................0.25
  CHICAGO RIDGE (COOK).........................0.24
  MARSEILLES 6WNW (LA SALLE)...................0.23
  CHICAGO 5NE (COOK)...........................0.21
  CHICAGO 6NNE (COOK)..........................0.20
  MIDWAY (COOK)................................0.17
  JOLIET LOCK/DAM (WILL).......................0.05


DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0249 PM CDT MON MAY 12 2014

   VALID 122000Z - 131200Z

   ...THERE IS A SLGT RISK OF SVR TSTMS FROM THE UPPER GREAT LAKES TO
   TX...

   ...SUMMARY...
   CLUSTERS OF STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE INTO THIS
   EVENING FROM WISCONSIN AND LOWER MICHIGAN SOUTHWARD ACROSS PARTS OF
   THE MID-MISSISSIPPI VALLEY INTO THE SOUTHERN PLAINS.

   ...PRIMARY CHANGES TO THE DAY 1 CONVECTIVE OUTLOOK...
   /1/ THE ERN EXTENT OF THE SLIGHT RISK AREA WAS TRIMMED ACROSS
   PORTIONS OF NRN OHIO AND NRN INDIANA WHERE DEEP FORCING FOR ASCENT
   WILL REMAIN WEAK THROUGH THE REMAINDER OF THE PERIOD. LATEST SFC
   MESOANALYSIS SUGGESTS THAT STRONGER PRESSURE FALLS AND FOCI FOR
   MESOSCALE ASCENT ARE PRIMARILY RELEGATED TO LOWER MICHIGAN...WHERE A
   GREATER RISK FOR ORGANIZED SVR STORMS WILL EXIST.

   /2/ THE NRN BOUND OF THE SLIGHT RISK AREA FROM ERN MN TO NRN LOWER
   MI HAS BEEN EDGED SWD/SEWD OWING TO THE ANTICIPATION THAT
   DESTABILIZATION INTO THESE AREAS WILL BE HINDERED BY /A/ WIDESPREAD
   CLOUDS AND/OR PRECIPITATION...AND /B/ DEEPER FRONTAL INTRUSION EWD
   INTO PORTIONS OF THE UPPER MS VALLEY.

   /3/ THE WRN EXTENT OF THE SLIGHT RISK AREA HAS BEEN SHIFTED EWD
   OWING TO THE EWD PROGRESSION OF THE COMPOSITE SYNOPTIC COLD
   FRONT/OUTFLOW BOUNDARIES...W OF WHICH THE SVR RISK SHOULD BE NIL.

   ..COHEN.. 05/12/2014

   .PREV DISCUSSION... /ISSUED 1111 AM CDT MON MAY 12 2014/

   ...SYNOPSIS...

   A HIGH-AMPLITUDE AND ONLY SLIGHTLY PROGRESSIVE PATTERN WILL PERSIST
   OVER NORTH AMERICA THROUGH THE DAY ONE PERIOD WITH THE PRIMARY
   FEATURE OF INTEREST BEING A FULL-LATITUDE TROUGH WHICH WILL EDGE EWD
   FROM THE ROCKIES INTO GREAT PLAINS. WITHIN THIS LARGE-SCALE
   PATTERN...A 70-80 KT MIDLEVEL JET STREAK OBSERVED OVER THE CNTRL/SRN
   PLAINS THIS MORNING WILL PROGRESS NEWD INTO THE UPPER MS VALLEY BY
   TONIGHT.

   AT THE SURFACE...LOW PRESSURE OVER CNTRL IA WILL DEEPEN SLIGHTLY
   PRIOR TO UNDERGOING OCCLUSION AS IT DEVELOPS NNEWD INTO WRN ONTARIO.
   AN ASSOCIATED COLD FRONT WILL ADVANCE EWD INTO THE UPPER GREAT LAKES
   AND MID MS VALLEY WITH THE SRN EXTENSION OF THIS BOUNDARY MOVING
   SEWD THROUGH THE OZARK PLATEAU AND MUCH OF THE SRN PLAINS. THIS COLD
   FRONT WILL SERVE AS THE PRIMARY FOCUS FOR STRONG TO SEVERE TSTM
   DEVELOPMENT THIS AFTERNOON INTO TONIGHT.

   ...UPPER GREAT LAKES INTO MIDWEST/OH VALLEY THIS
   AFTERNOON/EVENING...

   MULTIPLE CLUSTERS OF TSTMS ARE ONGOING AS OF MID MORNING FROM ERN IA
   INTO WI/LOWER MI/OH...AIDED BY CONVECTIVELY GENERATED VORTICITY
   MAXIMA AND A BROAD ZONE OF WAA WITHIN THE EXIT REGION OF A NOCTURNAL
   LLJ. A SUBSET OF THESE EARLY-DAY STORMS WILL LIKELY CONTINUE INTO
   AFTERNOON WITH ADDITIONAL STORMS FORMING ALONG THE SYNOPTIC COLD
   FRONT AND RESIDUAL OUTFLOW BOUNDARIES. 12Z OBSERVED SOUNDINGS
   INDICATE THAT THE WARM SECTOR AIR MASS HAS BECOME QUITE MOIST WITH
   LOWEST 100-MB MEAN-MIXING RATIOS AS HIGH AS 13-14 G/KG. THIS
   MOISTURE WILL COMBINE WITH DAYTIME HEATING AND STEEPENING MIDLEVEL
   LAPSE RATES TO YIELD AFTERNOON MLCAPE VALUES APPROACHING 1500-2500
   J/KG.

   THE STRONGEST VERTICAL SHEAR WILL RESIDE ACROSS MN/IA INTO WI/NRN IL
   WHERE A NWD-MIGRATING 30-40 KT SLY LLJ WILL ALIGN WITH THE MIDLEVEL
   JET STREAK PROGRESSING NEWD FROM THE CNTRL PLAINS. WHERE STRONGER
   HEATING/DESTABILIZATION CAN OCCUR...THE ENVIRONMENT WILL SUPPORT
   BOWING AND SUPERCELL STRUCTURES WITH A RISK FOR DAMAGING
   WINDS...LARGE HAIL AND PERHAPS A COUPLE OF TORNADOES.

   FARTHER TO THE E INTO LOWER MI AND THE OH VALLEY...VERTICAL SHEAR
   WILL DECREASE OWING TO THE PROXIMITY OF THE MIDLEVEL RIDGE AXIS.
   HOWEVER...GIVEN AT LEAST MODESTLY STRONG DEEP SWLY FLOW AND THE
   POTENTIAL FOR MODERATE AFTERNOON INSTABILITY...SOME ORGANIZED LINE
   SEGMENTS AND/OR MULTICELL CLUSTERS APPEARS POSSIBLE WITH DAMAGING
   WINDS AND LARGE HAIL BEING THE PRIMARY HAZARDS.

   ...OZARK PLATEAU TO TX THIS AFTERNOON/EVENING...

   WHILE LARGE-SCALE FORCING FOR ASCENT WILL REMAIN MINIMAL ACROSS THE
   REGION...LOW-LEVEL UPLIFT ALONG THE SYNOPTIC COLD FRONT AND A
   PROMINENT GRAVITY WAVE PROPAGATING THROUGH AR AND CNTRL/ERN TX WILL
   FOSTER SCATTERED TSTM DEVELOPMENT. THE AREA WILL REMAIN ON THE
   SERN/ERN PERIPHERY OF STRONGER MID AND HIGH-LEVEL FLOW ATTENDANT TO
   THE CNTRL U.S. TROUGH...EFFECTIVELY LIMITING THE POTENTIAL FOR
   HIGHER-ORDER STORM MODES. NONETHELESS...THE CO-LOCATION OF ABUNDANT
   BOUNDARY-LAYER MOISTURE AND STEEP MIDLEVEL LAPSE RATES /AND
   RESULTING IN MLCAPE OF 1500-3000+ J PER KG/ WILL PROMOTE
   STRONG-SEVERE STORMS WITH THE POTENTIAL FOR UPSCALE GROWTH INTO A
   BROKEN BAND WITH AN ATTENDANT RISK FOR DAMAGING WIND GUSTS AND HAIL.


...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 12 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         84    452 PM  92    1956  69     15       55
  MINIMUM         64    408 AM  31    1981  47     17       37
  AVERAGE         74                        58     16       46

PRECIPITATION (IN)
  YESTERDAY        2.09          2.67 1935   0.12   1.97     0.00
  MONTH TO DATE    3.48                      1.39   2.09     0.63
  SINCE MAR 1      8.03                      7.27   0.76    11.31
  SINCE JAN 1     13.33                     10.79   2.54    17.90

SNOWFALL (IN)
  YESTERDAY        0.0           T    1923   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1     13.7                       6.8    6.9     10.5
  SINCE JUL 1     82.0                      36.3   45.7     30.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         8     -8       19
  MONTH TO DATE   91                       114    -23      111
  SINCE MAR 1   1604                      1447    157     1647
  SINCE JUL 1   7019                      6181    838     6049

 COOLING
  YESTERDAY        9                         1      8        0
  MONTH TO DATE   16                        10      6        5
  SINCE MAR 1     17                        20     -3       13
  SINCE JAN 1     17                        20     -3       13
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    49   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    55   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    12.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.

  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1000 PM
 LOWEST     55           500 PM
 AVERAGE    78

..........................................................


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1991
                                             1956
 MINIMUM TEMPERATURE (F)   47        34      1996
                                             1888


SUNRISE AND SUNSET
MAY 13 2014...........SUNRISE   533 AM CDT   SUNSET   803 PM CDT
MAY 14 2014...........SUNRISE   532 AM CDT   SUNSET   804 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.


000
CDUS43 KLOT 131204 CCA
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT TUE MAY 13 2014...CORRECTION FOR PRECIP...

HOMETOWN WEATHER: Arlington Heights Weather Forecast -- Arlingtoncardinal.com/weather

LIVE RADAR | STORM TRACKS | CLOUDS INFRARED SAT | CLOUDS VISIBLE SAT (during daylight)

WunderMap® with Temperature/Wind Data || Google: O'Hare  Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com) Midwest Cloud Cover and Arlington Heights Weather Forecast

SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with azimuth & trajectory, times for dawn, sunrise, solar noon, sunset, dusk ...