Chicago Weather O'Hare Data Monday, July 27 2015

D a t e	Time (cst)	Wind (mph)	Vis. (mi.)	Weather	Sky Cond.	Temperature (ºF)				Relative Humidity	Wind Chill (°F)	Heat Index (°F)	Pressure		Precipitation (in.)
						Air	Dwpt	6 hour					altimeter (in)	sea level (mb)	1 hr	3 hr	6 hr
								Max.

27	23:51	E 8	10.00	Mostly Cloudy	BKN250	74	66			76%	NA	NA	30.00	1015.4
27	22:51	E 6	10.00	A Few Clouds	FEW250	74	65			74%	NA	NA	30.02	1015.9
27	21:51	E 7	10.00	Mostly Cloudy	SCT180 BKN250	76	65			69%	NA	78	30.01	1015.6
27	20:51	NE 7	10.00	Mostly Cloudy	FEW060 SCT180 BKN250	77	64			64%	NA	79	30.00	1015.2
27	19:51	NE 10	10.00	Mostly Cloudy	FEW055 SCT160 BKN250	79	64			60%	NA	81	29.99	1014.8
27	18:51	NE 10	10.00	Mostly Cloudy	FEW055 BKN250	81	64	88	81	57%	NA	83	29.98	1014.8
27	17:51	E 12	10.00	Mostly Cloudy	FEW055 BKN250	84	63			49%	NA	85	29.97	1014.5
27	16:51	E 13	10.00	Mostly Cloudy	FEW055 BKN250	85	62			46%	NA	86	29.97	1014.4
27	15:51	NE 14	10.00	Partly Cloudy	FEW060 SCT250	87	61			42%	NA	87	29.99	1015.0
27	14:51	E 14 G 21	10.00	Partly Cloudy	FEW060 SCT250	87	59			39%	NA	86	29.99	1015.1
27	13:51	SE 12 G 22	10.00	Partly Cloudy	FEW060 SCT250	87	60			40%	NA	87	30.00	1015.3
27	12:51	E 15	10.00	A Few Clouds	FEW055 FEW250	86	60	86	71	42%	NA	86	30.00	1015.4
27	11:51	E 13	10.00	A Few Clouds	FEW050 FEW250	85	60			43%	NA	85	30.01	1015.8
27	10:51	E 15	10.00	A Few Clouds	FEW042 FEW250	83	63			51%	NA	84	30.01	1015.7
27	09:51	E 10	10.00	A Few Clouds	FEW023 FEW250	81	70			69%	NA	84	30.02	1016.0
27	08:51	E 7	10.00	Partly Cloudy	FEW017 SCT250	79	72			79%	NA	82	30.02	1015.9
27	07:51	NE 5	9.00	Partly Cloudy	FEW130 SCT250	76	70			82%	NA	77	30.00	1015.3
27	06:51	NE 3	9.00	Mostly Cloudy	SCT130 BKN250	71	68	71	67	90%	NA	NA	29.98	1014.8
27	05:51	N 5	9.00	Mostly Cloudy	SCT120 BKN250	69	67			93%	NA	NA	29.98	1014.6
27	04:51	N 3	10.00	Partly Cloudy	SCT150	68	65			90%	NA	NA	29.97	1014.4
27	03:51	N 5	10.00	Partly Cloudy	SCT150	69	66			90%	NA	NA	29.97	1014.3
27	02:51	N 5	10.00	Partly Cloudy	SCT150	69	65			87%	NA	NA	29.96	1013.9

Complete data after midnight (may be delayed 24-48 hours).

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

SUMMARY: Developing

Weather Underground Historical 24-Hour Weather Radar for Monday, July 27, 2015 …

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CLIMATE DATA FROM THE NATIONAL WEATHER SERVICE CHICAGO OFFICE ...

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000
CDUS43 KLOT 280634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT TUE JUL 28 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 27 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         88    302 PM 100    1955  84      4       87
                                      1916
  MINIMUM         67    345 AM  52    1985  64      3       65
  AVERAGE         78                        74      4       76

PRECIPITATION (IN)
  YESTERDAY        0.00          4.71 1966   0.13  -0.13     0.02
  MONTH TO DATE    2.85                      3.15  -0.30     2.13
  SINCE JUN 1      9.97                      6.60   3.37     9.94
  SINCE JAN 1     21.46                     19.68   1.78    24.77

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   13                         0     13        5
  SINCE JUN 1     52                        48      4       17
  SINCE JUL 1     13                         0     13        5

 COOLING
  YESTERDAY       13                         9      4       11
  MONTH TO DATE  194                       242    -48      162
  SINCE JUN 1    312                       407    -95      360
  SINCE JAN 1    365                       461    -96      421
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     E (110)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     E (110)
  AVERAGE WIND SPEED     8.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           300 AM
 LOWEST     39           200 PM
 AVERAGE    65

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       100      1983
 MINIMUM TEMPERATURE (F)   64        51      1984


SUNRISE AND SUNSET
JULY 28 2015..........SUNRISE   541 AM CDT   SUNSET   815 PM CDT
JULY 29 2015..........SUNRISE   542 AM CDT   SUNSET   814 PM CDT


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

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