Climatological Report (Daily)
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225
CDUS43 KLOT 310632
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1232 AM CST FRI JAN 31 2025

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 30 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         50   1:06 PM  55    1988  32     18       41
  MINIMUM         26   6:08 AM -23    2019  18      8       37
  AVERAGE         38                        25     13       39

PRECIPITATION (IN)
  YESTERDAY        0.51          0.97 1939   0.05   0.46      T
  MONTH TO DATE    0.74                      1.93  -1.19     3.50
  SINCE DEC 1      2.67                      4.04  -1.37     6.47
  SINCE JAN 1      0.74                      1.93  -1.19     3.50

SNOWFALL (IN)
  YESTERDAY        0.0          14.9  1939   0.4   -0.4      0.0
  MONTH TO DATE    4.6                      10.9   -6.3     16.1
  SINCE DEC 1      7.0                      18.5  -11.5     17.3
  SINCE JUL 1      9.9                      20.5  -10.6     20.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       27                        40    -13       26
  MONTH TO DATE 1278                      1188     90     1165
  SINCE DEC 1   2291                      2257     34     1963
  SINCE JUL 1   3058                      3408   -350     2927

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     7.4


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           8:00 PM
 LOWEST     37          12:00 PM
 AVERAGE    67

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        65      1989
 MINIMUM TEMPERATURE (F)   18       -21      2019


SUNRISE AND SUNSET
JANUARY 31 2025.......SUNRISE   7:05 AM CST   SUNSET   5:06 PM CST
FEBRUARY  1 2025......SUNRISE   7:04 AM CST   SUNSET   5:07 PM CST


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




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