Climatological Report (Monthly) Issued by NWS Chicago, IL
000
CXUS53 KLOT 011504
CLMRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
904 AM CST SUN JAN 01 2023
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2022...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2022
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 69 12/03/2012
LOW -24 12/24/1983
HIGHEST 61 12/29 69 12/15
LOWEST -10 12/22 9 12/07
12/23
AVG. MAXIMUM 34.5 34.3 0.2 44.2
AVG. MINIMUM 18.1 20.2 -2.1 25.7
MEAN 26.3 27.3 -1.0 34.9
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 12 12.3 -0.3 2
DAYS MIN <= 32 24 27.3 -3.3 27
DAYS MIN <= 0 5 2.4 2.6 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.04 1971
MINIMUM 0.17 1907
TOTALS 2.56 1.93 0.63 2.42
DAILY AVG. 0.08 0.06 0.02 0.08
DAYS >= .01 8 9.8 -1.8 10
DAYS >= .10 3 4.6 -1.6 5
DAYS >= .50 2 1.2 0.8 1
DAYS >= 1.00 1 0.3 0.7 1
GREATEST
24 HR. TOTAL 1.73 12/14 TO 12/15 1.20
SNOWFALL (INCHES)
RECORDS
TOTAL 30.1 2000
TOTALS 3.3 9.4 -6.1 2.6
SINCE 7/1 5.6 11.9 -6.3 MM
SNOWDEPTH AVG. 1 0
DAYS >= 1.0 1 2.6 -1.6 1
GREATEST
SNOW DEPTH 2 12/26 2 12/30
12/27
12/28
24 HR TOTAL 1.5 12/22 TO 12/22 1.9
DEGREE DAYS
HEATING TOTAL 1196 1170 26 925
SINCE 7/1 2472 2486 -14 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 978 839 139 MM
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WIND (MPH)
AVERAGE WIND SPEED 9.7
HIGHEST WIND SPEED/DIRECTION 32/290 DATE 12/03
32/300 12/22
HIGHEST GUST SPEED/DIRECTION 52/300 DATE 12/23
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.76
NUMBER OF DAYS FAIR 2
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 18
AVERAGE RH (PERCENT) 75
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 3
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 12 SLEET 1
FOG 16 FOG W/VIS <= 1/4 MILE 0
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$