Chicago Weather O'Hare Data Monday, August 17 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.

17	23:51	S 7	10.00	Overcast	BKN110 OVC230	70	67			90%	NA	NA	29.95	1013.6
17	22:51	SE 8	10.00	Light Rain	FEW090 BKN110 OVC130	69	68			96%	NA	NA	29.96	1014.1	0.02
17	21:51	SE 12	8.00	Thunderstorm Light Rain	FEW021 BKN039CB OVC110	69	66			90%	NA	NA	29.99	1015.0	0.02	0.02
17	20:51	NE 5	10.00	Thunderstorm	FEW046CB SCT060 BKN140 OVC250	76	67			74%	NA	77	29.95	1013.7
17	19:51	N 3	10.00	Mostly Cloudy	SCT140 BKN250	77	66			69%	NA	79	29.96	1014.2
17	18:51	NW 6	10.00	Overcast	FEW100 SCT140 BKN220 OVC250	78	68	88	74	71%	NA	80	29.96	1014.0			0.08
17	17:51	SW 6	10.00	Mostly Cloudy	FEW075 SCT140 BKN220 BKN250	79	68			69%	NA	81	29.96	1014.0
17	16:51	E 3	10.00	Mostly Cloudy	FEW050 SCT075 BKN120 BKN250	77	66			69%	NA	79	29.97	1014.3	0.08
17	15:51	W 17 G 30	2.00	Heavy Rain	SCT050CB BKN100 BKN250	80	69			69%	NA	83	29.96	1013.9
17	14:51	SW 6	10.00	Mostly Cloudy	SCT040 BKN055 BKN110 BKN250	85	65			51%	NA	87	29.96	1013.8
17	13:51	W 10	10.00	Mostly Cloudy	SCT040 BKN050 BKN110	87	64			46%	NA	88	29.98	1014.6
17	12:51	SW 7	10.00	Mostly Cloudy	SCT041 SCT050 BKN150	85	66	86	71	53%	NA	87	30.00	1015.4
17	11:51	W 12	10.00	Mostly Cloudy	SCT033 BKN041 BKN050 BKN150	85	67			55%	NA	88	30.02	1016.1
17	10:51	SW 9	10.00	Partly Cloudy	SCT034 SCT045	84	68			59%	NA	87	30.04	1016.7
17	09:51	SW 8	10.00	A Few Clouds	FEW040	82	68			63%	NA	85	30.04	1016.6
17	08:51	SW 7	10.00	A Few Clouds	FEW040 FEW150	79	69			72%	NA	82	30.05	1016.9
17	07:51	SW 10	10.00	A Few Clouds	FEW150	75	68			79%	NA	NA	30.06	1017.5
17	06:51	S 5	7.00	A Few Clouds	FEW150	71	68	76	68	90%	NA	NA	30.06	1017.4
17	05:51	Calm	9.00	Fair	CLR	70	67			90%	NA	NA	30.05	1017.0
17	04:51	S 3	10.00	Fair	CLR	70	67			90%	NA	NA	30.04	1016.6
17	03:51	S 3	10.00	Fair	CLR	72	68			87%	NA	NA	30.03	1016.5
17	02:51	SW 7	10.00	Fair	CLR	73	68			84%	NA	NA	30.03	1016.3
17	01:51	SW 6	10.00	A Few Clouds	FEW250	75	68			79%	NA	NA	30.04	1016.6

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, August 17, 2015 …

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Weather around Monday August 17, 2015 ...

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

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000
CDUS43 KLOT 180641
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT TUE AUG 18 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 17 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    137 PM  98    1988  82      6       71
                                      1947
  MINIMUM         68    908 PM  48    1976  63      5       64
  AVERAGE         78                        73      5       68

PRECIPITATION (IN)
  YESTERDAY        0.12          2.60 1979   0.17  -0.05      T
  MONTH TO DATE    1.02                      2.81  -1.79     3.83
  SINCE JUN 1     10.99                      9.96   1.03    13.78
  SINCE JAN 1     22.48                     23.04  -0.56    28.61

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    0                         0      0        0
  SINCE JUN 1     52                        52      0       17
  SINCE JUL 1     13                         4      9        5

 COOLING
  YESTERDAY       13                         8      5        3
  MONTH TO DATE  178                       143     35      111
  SINCE JUN 1    542                       591    -49      488
  SINCE JAN 1    595                       645    -50      549
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     7.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           300 AM
 LOWEST     46           100 PM
 AVERAGE    68

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        98      1947
 MINIMUM TEMPERATURE (F)   63        49      1963


SUNRISE AND SUNSET
AUGUST 18 2015........SUNRISE   602 AM CDT   SUNSET   748 PM CDT
AUGUST 19 2015........SUNRISE   603 AM CDT   SUNSET   746 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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