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Climatological Report (Monthly)
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Issued by NWS
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000
CXUS53 KLOT 011410
CLMORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
901 AM CDT WED MAY 1 2013
...................................
...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2013
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 91 04/22/1980
04/30/1942
LOW 7 04/07/1982
HIGHEST 85 04/30 77 04/15
LOWEST 25 04/04 32 04/11
04/03 04/12
04/02
AVG. MAXIMUM 56.3 59.0 -2.7 59.8
AVG. MINIMUM 37.5 38.8 -1.3 41.6
MEAN 46.9 48.9 -2.0 50.7
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 6 6.3 -0.3 2
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.33 1947
MINIMUM 0.14 1899
TOTALS 8.68R 3.38 5.30 1.65
DAILY AVG. 0.29 0.11 0.18 0.05
DAYS >= .01 14 12.0 2.0 10
DAYS >= .10 8 6.4 1.6 5
DAYS >= .50 4 2.4 1.6 1
DAYS >= 1.00 2 0.8 1.2 0
GREATEST
24 HR. TOTAL 5.42 04/17 TO 04/18
SNOWFALL (INCHES)
RECORDS
TOTAL 13.6 1938
TOTALS 0.1 1.2 -1.1 0.0
SINCE 7/1 30.1 36.3 -6.2 19.8
SNOWDEPTH AVG. 0 MM MM 0
DAYS >= 1.0 0 0.3 -0.3 0
GREATEST
SNOW DEPTH 0 MM 0 MM
24 HR TOTAL 0.1 MM
DEGREE_DAYS
HEATING TOTAL 542 492 50 427
SINCE 7/1 5938 6067 -129 4790
COOLING TOTAL 8 9 -1 4
SINCE 1/1 8 10 -2 43
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 11.8
HIGHEST WIND SPEED/DIRECTION 37/180 DATE 04/06
HIGHEST GUST SPEED/DIRECTION 49/250 DATE 04/08
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.70
NUMBER OF DAYS FAIR 4
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 13
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 6 RAIN 7
LIGHT RAIN 16 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 2
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 2 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
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