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
115
CDUS43 KLOT 120634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT MON MAY 12 2025
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 11 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 71 3:38 PM 90 2022 69 2 70
MINIMUM 42 2:38 AM 33 1981 49 -7 51
AVERAGE 57 59 -2 61
PRECIPITATION (IN)
YESTERDAY 0.00 3.30 1966 0.15 -0.15 T
MONTH TO DATE 0.33 1.62 -1.29 2.42
SINCE MAR 1 5.98 7.82 -1.84 9.48
SINCE JAN 1 8.48 11.78 -3.30 13.63
SNOWFALL (IN)
YESTERDAY 0.0 0.2 1966 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 2.8 6.8 -4.0 1.0
SINCE JUL 1 17.6 38.4 -20.8 22.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 8 7 1 4
MONTH TO DATE 105 96 9 40
SINCE MAR 1 1163 1372 -209 1053
SINCE JUL 1 5298 5841 -543 4741
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 11 -11 8
SINCE MAR 1 8 21 -13 17
SINCE JAN 1 8 21 -13 17
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 5:00 AM
LOWEST 35 1:00 PM
AVERAGE 56
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 92 1956
MINIMUM TEMPERATURE (F) 49 31 1981
SUNRISE AND SUNSET
MAY 12 2025...........SUNRISE 5:34 AM CDT SUNSET 8:03 PM CDT
MAY 13 2025...........SUNRISE 5:33 AM CDT SUNSET 8:04 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$