901
CDUS43 KDMX 210637
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
137 AM CDT SUN SEP 21 2025
...............................
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 20 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 73 517 PM 96 2022 76 -3 91
MINIMUM 55 612 AM 27 1991 51 4 58
AVERAGE 64 63 1 75
PRECIPITATION (IN)
YESTERDAY 0.00 2.65 1923 0.10 -0.10 0.00
MONTH TO DATE 0.58 2.15 -1.57 0.44
SINCE SEP 1 0.58 2.15 -1.57 0.44
SINCE JAN 1 31.24 29.25 1.99 34.09
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 1 4 -3 0
MONTH TO DATE 51 49 2 16
SINCE SEP 1 51 49 2 16
SINCE JUL 1 66 62 4 22
COOLING
YESTERDAY 0 3 -3 10
MONTH TO DATE 92 79 13 114
SINCE SEP 1 92 79 13 114
SINCE JAN 1 899 885 14 936
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 3.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 64 200 PM
AVERAGE 82
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THE WATERLOO IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1937
2024
MINIMUM TEMPERATURE (F) 50 27 1918
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 656 AM CDT SUNSET 708 PM CDT
SEPTEMBER 22 2025.....SUNRISE 657 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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