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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
................................................................

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.

$$