Climatological Report (Monthly)
Issued by NWS Chicago, IL

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CXUS53 KLOT 011718
CLMRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1118 AM CST WED FEB 01 2023

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             63   01/07/2008
                       01/31/1989
 LOW             -31   01/31/2019
HIGHEST           50   01/11                          42  01/12
LOWEST           -11   01/31                         -18  01/26
AVG. MAXIMUM    34.2               29.1     5.1     26.8
AVG. MINIMUM    23.6               14.5     9.1      6.9
MEAN            28.9               21.8     7.1     16.8
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    12               18.5    -6.5       24
DAYS MIN <= 32    24               29.2    -5.2       31
DAYS MIN <= 0      2                5.6    -3.6        6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.80   1946
 MINIMUM        0.12   1921
TOTALS          2.07               1.60    0.47     0.56
DAILY AVG.      0.07               0.05    0.02     0.02
DAYS >= .01       13               10.1     2.9       10
DAYS >= .10        8                4.4     3.6        2
DAYS >= .50        0                0.7    -0.7        0
DAYS >= 1.00       0                0.1    -0.1        0
GREATEST
 24 HR. TOTAL   0.42   01/16 TO 01/16               0.13
                       01/28 TO 01/29

SNOWFALL (INCHES)
RECORDS
 TOTAL          36.1   1918
TOTALS          11.0               10.9     0.1      9.8
SINCE 7/1       16.6               22.8    -6.2       MM
SNOWDEPTH AVG.     1                                   3
DAYS >= 1.0        3                3.6    -0.6        3
GREATEST
 SNOW DEPTH        8   01/29                           5  01/02
                                                          01/03
                                                          01/04
 24 HR TOTAL     5.1   01/28 TO 01/29                4.3

DEGREE DAYS
HEATING TOTAL   1109               1339    -230     1486
 SINCE 7/1      3581               3828    -247       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.7
HIGHEST WIND SPEED/DIRECTION    26/260    DATE  01/27
HIGHEST GUST SPEED/DIRECTION    39/070    DATE  01/18
                                39/250          01/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.88
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY         25

AVERAGE RH (PERCENT)     81

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       1
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               16     SLEET                      1
FOG                      25     FOG W/VIS <= 1/4 MILE      5
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

RECORDS SET IN JANUARY 2023:

- RECORD SNOWFALL OF 4.9 INCHES SET ON 28TH.
- RECORD HIGH MINIMUM TEMPERATURE OF 33 DEGREES TIED ON 19TH.

$$


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