Climatological Report (Daily)
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
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.




$$