Climatological Report (Monthly)
Issued by NWS
Issued by NWS
476 CXUS53 KLOT 011635 CLMORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 1035 AM CST MON JAN 01 2024 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 71 12/02/1982 12/03/1970 LOW -25 12/24/1983 HIGHEST 59 12/25 59 12/29 LOWEST 17 12/19 -8 12/23 AVG. MAXIMUM 44.2 36.6 7.6 35.7 AVG. MINIMUM 33.8 24.4 9.4 22.5 MEAN 39.0 30.5 8.5 29.1 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 10.0 -10.0 10 DAYS MIN <= 32 16 25.4 -9.4 21 DAYS MIN <= 0 0 1.1 -1.1 3 PRECIPITATION (INCHES) RECORD MAXIMUM 8.56 1982 MINIMUM 0.16 1896 TOTALS 2.97 2.11 0.86 2.16 DAILY AVG. 0.10 0.07 0.03 0.07 DAYS >= .01 12 10.6 1.4 7 DAYS >= .10 9 4.8 4.2 3 DAYS >= .50 2 1.2 0.8 1 DAYS >= 1.00 0 0.3 -0.3 1 GREATEST 24 HR. TOTAL 0.66 12/01 TO 12/01 1.51 SNOWFALL (INCHES) RECORDS TOTAL 33.3 1951 TOTALS 1.2 7.6 -6.4 3.2 SINCE 7/1 3.9 9.6 -5.7 MM SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 2.0 -2.0 2 GREATEST SNOW DEPTH 0 1 12/26 12/27 12/28 24 HR TOTAL 0.9 12/31 TO 12/31 1.3 DEGREE DAYS HEATING TOTAL 798 1069 -271 1101 SINCE 7/1 1762 2220 -458 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 1145 1003 142 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 8.6 HIGHEST WIND SPEED/DIRECTION 29/320 DATE 12/18 HIGHEST GUST SPEED/DIRECTION 41/260 DATE 12/09 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.78 NUMBER OF DAYS FAIR 3 NUMBER OF DAYS PC 9 NUMBER OF DAYS CLOUDY 19 AVERAGE RH (PERCENT) 76 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 5 LIGHT RAIN 17 FREEZING RAIN 0 LT FREEZING RAIN 1 HAIL 1 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 5 SLEET 0 FOG 16 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. $$