Climatological Report (Monthly)
Issued by NWS Chicago, IL

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079
CXUS53 KLOT 011554
CLMRFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
954 AM CST SAT FEB 01 2025

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2025

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           55   01/30                          40  01/30
                                                          01/31
LOWEST           -11   01/21                         -16  01/15
AVG. MAXIMUM    30.1               29.1     1.0     28.4
AVG. MINIMUM    10.5               14.5    -4.0     18.3
MEAN            20.3               21.8    -1.5     23.4
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    20               19.0     1.0       14
DAYS MIN <= 32    31               29.2     1.8       25
DAYS MIN <= 0      7                5.6     1.4        8

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.80   1946
 MINIMUM        0.12   1921
TOTALS          0.79               1.60   -0.81     2.28
DAILY AVG.      0.03               0.05   -0.02     0.07
DAYS >= .01        5               10.1    -5.1       15
DAYS >= .10        3                4.4    -1.4        5
DAYS >= .50        0                0.7    -0.7        2
DAYS >= 1.00       0                0.1    -0.1        0
GREATEST
 24 HR. TOTAL   0.65   01/30 TO 01/31               0.82

SNOWFALL (INCHES)
RECORDS
 TOTAL          36.1   1918
TOTALS           2.1               10.9    -8.8     15.9
SINCE 7/1        7.3               22.8   -15.5       MM
SNOWDEPTH AVG.     0                                   4
DAYS >= 1.0        1                4.0    -3.0        4
GREATEST
 SNOW DEPTH        2   01/23                          10  01/13
                                                          01/14
 24 HR TOTAL     1.6   01/22 TO 01/23                7.0

DEGREE DAYS
HEATING TOTAL   1375               1339      36     1285
 SINCE 7/1      3448               3828    -380       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    30/230    DATE  01/27
                                30/220          01/28
HIGHEST GUST SPEED/DIRECTION    53/250    DATE  01/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.52
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW               13     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

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