403
CDUS43 KDVN 170636
CLIIOW
CLIMATE REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
136 AM CDT WED SEP 17 2025
...............................
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 16 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 93 229 PM MM MM 78 15 87
MINIMUM 63 505 AM MM MM 54 9 63
AVERAGE 78 66 12 75
PRECIPITATION (IN)
YESTERDAY 0.00 MM MM 0.10 -0.10 0.00
MONTH TO DATE 0.04 1.80 -1.76 0.00
SINCE SEP 1 0.04 1.80 -1.76 0.00
SINCE JAN 1 21.55 27.64 -6.09 31.87
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 37 23 14 16
SINCE SEP 1 37 23 14 16
SINCE JUL 1 48 29 19 21
COOLING
YESTERDAY 13 4 9 10
MONTH TO DATE 92 77 15 59
SINCE SEP 1 92 77 15 59
SINCE JAN 1 1104 996 108 983
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 2.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 500 AM
LOWEST 36 100 PM
AVERAGE 63
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THE IOWA CITY IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 MM MM
MINIMUM TEMPERATURE (F) 54 MM MM
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 649 AM CDT SUNSET 711 PM CDT
SEPTEMBER 18 2025.....SUNRISE 650 AM CDT SUNSET 710 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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