Climatological Report (Monthly)
Issued by NWS
Issued by NWS
100 CXUS53 KLOT 011758 CLMMDW CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 1158 AM CST MON JAN 01 2024 ................................... ...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1928 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 72 12/03/2012 LOW -20 12/24/1983 HIGHEST 60 12/25 57 12/29 12/30 LOWEST 18 12/19 -9 12/23 AVG. MAXIMUM 45.7 37.6 8.1 35.7 AVG. MINIMUM 35.1 25.0 10.1 23.2 MEAN 40.4 31.3 9.1 29.5 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 9.9 -9.9 10 DAYS MIN <= 32 13 23.7 -10.7 20 DAYS MIN <= 0 0 0.9 -0.9 3 PRECIPITATION (INCHES) RECORD MAXIMUM 7.21 1982 MINIMUM 0.17 2017 TOTALS 2.67 1.79 0.88 1.67 DAILY AVG. 0.09 0.06 0.03 0.05 DAYS >= .01 10 9.5 0.5 6 DAYS >= .10 7 4.3 2.7 3 DAYS >= .50 1 1.1 -0.1 1 DAYS >= 1.00 0 0.4 -0.4 1 GREATEST 24 HR. TOTAL 0.72 12/01 TO 12/01 1.15 DEGREE DAYS HEATING TOTAL 755 1044 -289 1094 SINCE 7/1 1707 2128 -421 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 1149 1112 37 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.2 HIGHEST WIND SPEED/DIRECTION 32/330 DATE 12/18 HIGHEST GUST SPEED/DIRECTION 45/340 DATE 12/18 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.77 NUMBER OF DAYS FAIR 2 NUMBER OF DAYS PC 10 NUMBER OF DAYS CLOUDY 19 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 3 LIGHT RAIN 16 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 3 SLEET 0 FOG 17 FOG W/VIS <= 1/4 MILE 2 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$