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 ................................................................ 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. $$