677
CDUS43 KDVN 180646
CLIIOW
CLIMATE REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
146 AM CDT THU SEP 18 2025
...............................
..THE IOWA CITY IA CLIMATE SUMMARY FOR SEPTEMBER 17 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 91 155 PM MM MM 77 14 88
MINIMUM 62 520 AM MM MM 54 8 59
AVERAGE 77 66 11 74
PRECIPITATION (IN)
YESTERDAY 0.00 MM MM 0.11 -0.11 0.00
MONTH TO DATE 0.04 1.91 -1.87 0.00
SINCE SEP 1 0.04 1.91 -1.87 0.00
SINCE JAN 1 21.55 27.75 -6.20 31.87
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 37 26 11 16
SINCE SEP 1 37 26 11 16
SINCE JUL 1 48 32 16 21
COOLING
YESTERDAY 12 3 9 9
MONTH TO DATE 104 80 24 68
SINCE SEP 1 104 80 24 68
SINCE JAN 1 1116 999 117 992
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WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 4.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 100 AM
LOWEST 35 100 PM
AVERAGE 61
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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 18 2025.....SUNRISE 650 AM CDT SUNSET 710 PM CDT
SEPTEMBER 19 2025.....SUNRISE 651 AM CDT SUNSET 708 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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