571
CDUS43 KDVN 190620
CLIIOW
CLIMATE REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
120 AM CDT FRI SEP 19 2025
...............................
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 18 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 75 341 PM MM MM 77 -2 87
MINIMUM 65 316 AM MM MM 53 12 56
AVERAGE 70 65 5 72
PRECIPITATION (IN)
YESTERDAY 0.18 MM MM 0.11 0.07 0.00
MONTH TO DATE 0.22 2.02 -1.80 0.00
SINCE SEP 1 0.22 2.02 -1.80 0.00
SINCE JAN 1 21.73 27.86 -6.13 31.87
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 37 29 8 16
SINCE SEP 1 37 29 8 16
SINCE JUL 1 48 35 13 21
COOLING
YESTERDAY 5 3 2 7
MONTH TO DATE 109 83 26 75
SINCE SEP 1 109 83 26 75
SINCE JAN 1 1121 1002 119 999
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WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 800 PM
LOWEST 78 1000 AM
AVERAGE 87
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THE IOWA CITY IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 MM MM
MINIMUM TEMPERATURE (F) 53 MM MM
SUNRISE AND SUNSET
SEPTEMBER 19 2025.....SUNRISE 651 AM CDT SUNSET 708 PM CDT
SEPTEMBER 20 2025.....SUNRISE 652 AM CDT SUNSET 706 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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