Chicago Weather O'Hare Data Monday, April 20 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.

20	23:51	W 14	10.00	A Few Clouds	FEW070 FEW085	42	33			71%	35	NA	29.61	1003.0
20	22:51	W 15 G 23	10.00	Mostly Cloudy	BKN070 BKN080	43	33			68%	36	NA	29.61	1003.1
20	21:51	W 12	10.00	Partly Cloudy	FEW048 SCT075	43	31			63%	37	NA	29.61	1002.9
20	20:51	W 12 G 21	10.00	Partly Cloudy	SCT050	43	31			63%	37	NA	29.60	1002.8
20	19:51	W 14 G 25	10.00	A Few Clouds	FEW050	44	30			58%	37	NA	29.58	1002.0
20	18:51	W 20 G 33	10.00	Overcast	OVC049	46	31	47	44	56%	38	NA	29.57	1001.4
20	17:51	W 25 G 31	10.00	Overcast and Breezy	BKN036 OVC044	46	33			61%	37	NA	29.55	1000.7
20	16:51	W 21 G 30	10.00	Overcast and Breezy	BKN036 OVC043	46	34			63%	38	NA	29.52	999.9
20	15:51	W 21 G 29	10.00	Light Drizzle and Breezy	FEW026 BKN030 OVC043	46	35			66%	38	NA	29.50	999.3
20	14:51	W 20 G 30	10.00	Light Drizzle	OVC022	46	37			71%	38	NA	29.49	998.6
20	13:51	W 15 G 24	10.00	Light Drizzle	OVC022	46	39			77%	40	NA	29.46	997.7
20	12:51	W 23 G 33	10.00	Overcast and Breezy	OVC020	46	39	51	46	77%	38	NA	29.42	996.3
20	11:51	W 20 G 31	10.00	Overcast	OVC018	46	39			77%	38	NA	29.39	995.3
20	10:51	W 22 G 33	10.00	Overcast and Breezy	BKN012 OVC015	46	40			79%	38	NA	29.35	993.8
20	09:51	W 23 G 33	6.00	Fog/Mist and Breezy	OVC012	47	43			86%	39	NA	29.30	992.5
20	08:51	W 21 G 29	10.00	Overcast and Breezy	OVC011	49	46			90%	42	NA	29.27	991.3
20	07:51	W 18 G 28	3.00	Light Drizzle Fog/Mist	OVC005	51	49			92%	NA	NA	29.24	990.3
20	06:51	SW 16 G 22	6.00	Fog/Mist	OVC005	51	50	52	48	96%	NA	NA	29.23	989.7			0.01
20	05:51	SW 3	2.50	Fog/Mist	OVC005	51	50			96%	NA	NA	29.22	989.6	0.01
20	04:51	W 9	5.00	Fog/Mist	OVC007	50	48			93%	46	NA	29.23	990.0
20	03:51	W 8	8.00	Overcast	OVC007	50	48			93%	47	NA	29.24	990.0
20	02:51	W 12	8.00	Overcast	OVC005	49	48			97%	44	NA	29.24	990.1
20	01:51	W 10	7.00	Overcast	OVC005	49	48			97%	45	NA	29.25	990.2

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 Friday, April 120, 2015 …

Twitter group from National Weather Service Chicago, Local Chicago Media, and The Weather Channel.

Another cool & very windy day on Tues. Strong winds & low humidity may result in enhanced fire danger. #ilwx #inwx pic.twitter.com/ZFEzzXpSnF
— NWS Chicago (@NWSChicago) April 20, 2015

Here's the top ten rainfall reports in the last 24 hours in our area. pic.twitter.com/f3exrINgQq
— NWS Chicago (@NWSChicago) April 20, 2015

#inwx #ilwx pic.twitter.com/rkvekddkq6
— NWS Chicago (@NWSChicago) April 20, 2015

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

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000
CDUS43 KLOT 211121
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
620 AM CDT TUE APR 21 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 20 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         52    522 AM  87    1985  61     -9       79
  MINIMUM         41   1155 PM  24    1897  40      1       41
  AVERAGE         47                        51     -4       60

PRECIPITATION (IN)
  YESTERDAY        0.01          2.37 2000   0.11  -0.10     0.00
  MONTH TO DATE    2.55                      2.21   0.34     1.28
  SINCE MAR 1      3.65                      4.71  -1.06     2.99
  SINCE JAN 1      6.51                      8.23  -1.72     8.29

SNOWFALL (IN)
  YESTERDAY        0.0           0.2  1943   0.0    0.0      0.0
  MONTH TO DATE    0.0                       1.1   -1.1      1.4
  SINCE MAR 1      7.1                       6.7    0.4     13.7
  SINCE JUL 1     50.7                      36.5   14.2     82.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       18                        15      3        5
  MONTH TO DATE  262                       364   -102      355
  SINCE MAR 1   1172                      1205    -33     1380
  SINCE JUL 1   6352                      5939    413     6795

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1      0                         1     -1        0
  SINCE JAN 1      0                         1     -1        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    16.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     53           600 PM
 AVERAGE    77

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   61        88      1985
 MINIMUM TEMPERATURE (F)   41        27      1986


SUNRISE AND SUNSET
APRIL 21 2015.........SUNRISE   602 AM CDT   SUNSET   739 PM CDT
APRIL 22 2015.........SUNRISE   601 AM CDT   SUNSET   740 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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