980
CXUS53 KLOT 011600
CLMORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1100 AM CDT TUE APR 01 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF MARCH 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 88 03/29/1986
LOW -12 03/04/1873
HIGHEST 79 03/14 73 03/03
LOWEST 18 03/02 24 03/18
AVG. MAXIMUM 54.4 47.0 7.4 52.9
AVG. MINIMUM 34.5 31.0 3.5 35.1
MEAN 44.4 39.0 5.4 44.0
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 3.0 -3.0 0
DAYS MIN <= 32 11 19.9 -8.9 13
DAYS MIN <= 0 0 0.2 -0.2 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.58 1922
MINIMUM 0.29 1910
TOTALS 2.99 2.45 0.54 3.59
DAILY AVG. 0.10 0.08 0.02 0.12
DAYS >= .01 13 10.8 2.2 10
DAYS >= .10 10 5.5 4.5 8
DAYS >= .50 2 1.4 0.6 2
DAYS >= 1.00 0 0.4 -0.4 0
GREATEST
24 HR. TOTAL 0.93 03/04 TO 03/05 0.91
SNOWFALL (INCHES)
RECORDS
TOTAL 23.1 1926
TOTALS 2.8 5.5 -2.7 1.0
SINCE 7/1 17.6 37.1 -19.5 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 2 2.0 0.0 1
GREATEST
SNOW DEPTH 2 03/20 0 MM
24 HR TOTAL 1.7 03/20 TO 03/20 1.0
DEGREE DAYS
HEATING TOTAL 630 808 -178 642
SINCE 7/1 4765 5277 -512 MM
COOLING TOTAL 0 2 -2 0
SINCE 1/1 0 2 -2 MM
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WIND (MPH)
AVERAGE WIND SPEED 11.2
HIGHEST WIND SPEED/DIRECTION 39/030 DATE 03/11
HIGHEST GUST SPEED/DIRECTION 49/030 DATE 03/11
49/250 03/30
49/280 03/23
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.64
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 13
AVERAGE RH (PERCENT) 61
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 5
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 3
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 6 SLEET 2
FOG 12 FOG W/VIS <= 1/4 MILE 1
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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