Climatological Report (Daily)
Issued by NWS
Issued by NWS
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
743
CDUS43 KLOT 080731
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
231 AM CDT WED OCT 08 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 7 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 66 MM 87 2007 67 -1 68
MINIMUM 53 MM 29 2001 49 4 48
AVERAGE 60 58 2 58
PRECIPITATION (IN)
YESTERDAY 0.98 1.39 1930 0.11 0.87 0.00
MONTH TO DATE 1.38 0.78 0.60 0.01
SINCE SEP 1 1.87 3.97 -2.10 1.33
SINCE JAN 1 24.32 30.68 -6.36 28.19
SNOWFALL (IN)
YESTERDAY 0.0 T 2000 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 5 8 -3 7
MONTH TO DATE 5 51 -46 15
SINCE SEP 1 37 128 -91 30
SINCE JUL 1 42 134 -92 30
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 55 7 48 9
SINCE SEP 1 221 123 98 199
SINCE JAN 1 1213 995 218 1185
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 9.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 12:00 AM
LOWEST 38 4:00 PM
AVERAGE 68
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 88 1997
MINIMUM TEMPERATURE (F) 48 27 1987
SUNRISE AND SUNSET
OCTOBER 8 2025.......SUNRISE 6:57 AM CDT SUNSET 6:21 PM CDT
OCTOBER 9 2025.......SUNRISE 6:58 AM CDT SUNSET 6:19 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$