CXUS53 KLOT 011827 CLSORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 1227 PM CST FRI MAR 01 2024 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM 12/1/2023 TO 2/29/2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 75 02/27/1976 LOW -27 01/20/1985 HIGHEST 74 02/27 59 12/29 LOWEST -10 01/14 -8 12/23 01/15 AVG. MAXIMUM 41.4 34.6 6.8 38.5 AVG. MINIMUM 28.4 21.6 6.8 25.0 MEAN 34.9 28.1 6.8 31.8 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 10 38.0 -28.0 23 DAYS MIN <= 32 60 77.9 -17.9 62 DAYS MIN <= 0 3 6.4 -3.4 5 PRECIPITATION (INCHES) RECORD MAXIMUM 13.79 1950 MINIMUM 1.60 1931 TOTALS 7.12 6.07 1.05 8.59 DAILY AVG. 0.08 NAN NAN 0.10 DAYS >= .01 34 31.0 3.0 28 DAYS >= .10 17 14.7 2.3 17 DAYS >= .50 4 3.3 0.7 7 DAYS >= 1.00 0 0.7 -0.7 4 GREATEST 24 HR. TOTAL 1.00 01/08 TO 01/09 1.51 SNOWFALL (INCHES) RECORDS TOTAL 80.6 1979 TOTALS 18.5 29.6 -11.1 16.8 SINCE 7/1 21.2 31.6 -10.4 17.9 DAYS >= 1.0 6 9.0 -3.0 7 GREATEST SNOW DEPTH 5 01/13 3 01/30 01/19 01/31 02/01 24 HR TOTAL 5.7 01/12 TO 01/13 3.6 DEGREE DAYS HEATING TOTAL 2724 3318 -594 2970 SINCE 7/1 3688 4534 -846 4035 COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.4 HIGHEST WIND SPEED/DIRECTION 37/090 DATE 01/12 HIGHEST GUST SPEED/DIRECTION 55/090 DATE 01/12 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.71 NUMBER OF DAYS FAIR 13 NUMBER OF DAYS PC 27 NUMBER OF DAYS CLOUDY 51 AVERAGE RH (PERCENT) 73 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 7 LIGHT RAIN 31 FREEZING RAIN 0 LT FREEZING RAIN 4 HAIL 4 HEAVY SNOW 3 SNOW 4 LIGHT SNOW 24 SLEET 5 FOG 47 FOG W/VIS <= 1/4 MILE 9 HAZE 14 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$