Climatological Report (Seasonal)
Issued by NWS
Issued by NWS
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313 CXUS53 KLOT 012304 CLSORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 504 PM CST MON MAR 01 2021 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM 12/1/2020 TO 2/28/2021... CLIMATE NORMAL PERIOD: 1981 TO 2010 CLIMATE RECORD PERIOD: 1871 TO 2021 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 58 12/23 MM MM 61 12/26 LOWEST -7 02/07 MM MM -2 02/14 AVG. MAXIMUM 33.5 33.6 -0.1 38.1 AVG. MINIMUM 21.3 19.1 2.2 24.7 MEAN 27.4 26.4 1.0 31.4 DAYS MAX >= 90 0 0.0 0.0 MM DAYS MAX <= 32 33 37.8 -4.8 MM DAYS MIN <= 32 80 78.0 2.0 MM DAYS MIN <= 0 5 7.0 -2.0 MM PRECIPITATION (INCHES) RECORD MAXIMUM 13.79 1950 MINIMUM 1.60 1931 TOTALS 5.75 5.77 -0.02 5.12 DAILY AVG. 0.06 0.06 -0.00 0.06 DAYS >= .01 32 30.3 1.7 MM DAYS >= .10 14 14.1 -0.1 MM DAYS >= .50 3 3.0 0.0 MM DAYS >= 1.00 0 0.7 -0.7 MM GREATEST 24 HR. TOTAL 0.85 12/12 TO 12/12 0.93 SNOWFALL (INCHES) RECORDS TOTAL 80.6 1979 TOTALS 46.3 28.1 18.2 18.6 SINCE 7/1 47.0 29.5 17.5 MM DAYS >= TRACE 43 MM MM MM DAYS >= 1.0 12 8.9 3.1 MM GREATEST SNOW DEPTH 21 02/16 3 02/15 02/14 02/13 24 HR TOTAL 6.3 01/31 TO 01/31 3.1 01/17 TO 01/17 DEGREE DAYS HEATING TOTAL 3341 3477 -136 3033 SINCE 7/1 4340 4733 -393 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.6 HIGHEST WIND SPEED/DIRECTION 32/250 DATE 12/24 HIGHEST GUST SPEED/DIRECTION 49/250 DATE 02/04 SKY COVER AVERAGE SKY COVER 0.72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 2 LIGHT RAIN 16 FREEZING RAIN 0 LT FREEZING RAIN 4 HAIL 0 HEAVY SNOW 4 SNOW 11 LIGHT SNOW 42 SLEET 3 FOG 42 FOG W/VIS <= 1/4 MILE 4 HAZE 29 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$