


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
821 CDUS43 KLOT 280634 CLIDPA CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 134 AM CDT THU AUG 28 2025 ................................... ...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 27 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1997 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 76 12:26 PM 97 2024 81 -5 97 MINIMUM 51 5:28 AM 47 2015 60 -9 73 AVERAGE 64 70 -6 85 PRECIPITATION (IN) YESTERDAY 0.00 0.80 2016 0.13 -0.13 0.15 MONTH TO DATE 2.68 3.34 -0.66 1.71 SINCE JUN 1 12.29 10.61 1.68 11.30 SINCE JAN 1 20.35 22.87 -2.52 23.94 DEGREE DAYS HEATING YESTERDAY 1 0 1 0 MONTH TO DATE 8 0 8 6 SINCE JUN 1 26 37 -11 22 SINCE JUL 1 8 4 4 9 COOLING YESTERDAY 0 6 -6 20 MONTH TO DATE 238 197 41 199 SINCE JUN 1 870 644 226 703 SINCE JAN 1 903 700 203 757 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 5.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 2:00 AM LOWEST 45 1:00 PM AVERAGE 69 .......................................................... THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 81 93 2021 MINIMUM TEMPERATURE (F) 60 52 2023 SUNRISE AND SUNSET AUGUST 28 2025........SUNRISE 6:15 AM CDT SUNSET 7:33 PM CDT AUGUST 29 2025........SUNRISE 6:16 AM CDT SUNSET 7:31 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$