Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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
918
CDUS43 KLOT 212133
CLIRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT THU AUG 21 2025
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 21 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 78 2:56 PM 100 1916 82 -4 76
1955
MINIMUM 61 3:23 AM 45 1950 61 0 49
AVERAGE 70 72 -2 63
PRECIPITATION (IN)
TODAY 0.00 2.84 2002 0.14 -0.14 0.00
MONTH TO DATE 2.97 2.82 0.15 1.18
SINCE JUN 1 12.84 11.86 0.98 13.44
SINCE JAN 1 21.24 25.42 -4.18 28.44
SNOWFALL (IN)
TODAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 2
MONTH TO DATE 0 0 0 5
SINCE JUN 1 9 30 -21 13
SINCE JUL 1 0 3 -3 7
COOLING
TODAY 5 7 -2 0
MONTH TO DATE 191 161 30 140
SINCE JUN 1 809 617 192 672
SINCE JAN 1 847 678 169 740
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 60 3:00 PM
AVERAGE 79
..........................................................
THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 101 1936
MINIMUM TEMPERATURE (F) 61 41 1923
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 6:11 AM CDT SUNSET 7:48 PM CDT
AUGUST 22 2025........SUNRISE 6:12 AM CDT SUNSET 7:46 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$