Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 020209 CCA
CLMORD

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO IL
809 PM CST WED FEB 01 2023

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             67   01/25/1950
 LOW             -27   01/20/1985
HIGHEST           57   01/11                          44  01/18
LOWEST            -1   01/31                          -6  01/26
AVG. MAXIMUM    37.5               31.6     5.9     28.6
AVG. MINIMUM    27.1               18.8     8.3     12.6
MEAN            32.3               25.2     7.1     20.6
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     9               16.5    -7.5       18
DAYS MIN <= 32    21               28.1    -7.1       31
DAYS MIN <= 0      1                3.5    -2.5        3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.84   1916
 MINIMUM        0.10   1981
TOTALS          2.60               1.99    0.61     0.84
DAILY AVG.      0.08               0.06    0.02     0.03
DAYS >= .01       14               11.0     3.0       10
DAYS >= .10        8                5.2     2.8        3
DAYS >= .50        1                1.1    -0.1        0
DAYS >= 1.00       1                0.1     0.9        0
GREATEST
 24 HR. TOTAL   1.12   01/03 TO 01/03               0.24

SNOWFALL (INCHES)
RECORDS
 TOTAL          42.5   1918
TOTALS           9.9               11.3    -1.4     13.9
SINCE 7/1       14.2               20.9    -6.7       MM
SNOWDEPTH AVG.     1                                   2
DAYS >= 1.0        3                3.6    -0.6        4
GREATEST
 SNOW DEPTH        3   01/29                           6  01/29
                       01/30
                       01/31
 24 HR TOTAL     3.6   01/25 TO 01/25                3.5

DEGREE DAYS
HEATING TOTAL   1005               1234    -229     1370
 SINCE 7/1      3171               3448    -277       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.9
HIGHEST WIND SPEED/DIRECTION    28/360    DATE  01/12
                                28/100          01/18
HIGHEST GUST SPEED/DIRECTION    41/250    DATE  01/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.89
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY         26

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               1
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       2
HEAVY SNOW                0     SNOW                       4
LIGHT SNOW               16     SLEET                      3
FOG                      23     FOG W/VIS <= 1/4 MILE      5
HAZE                      9

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

NO RECORDS SET OR TIED IN JANUARY 2023

$$


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