Climatological Report (Daily)
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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CDUS43 KDMX 220644
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
144 AM CDT MON SEP 22 2025
...................................
...THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 21 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 78 443 PM 93 1937 75 3 93
2024
MINIMUM 58 621 AM 27 1918 50 8 60
AVERAGE 68 63 5 77
PRECIPITATION (IN)
YESTERDAY 0.00 3.08 1950 0.10 -0.10 0.00
MONTH TO DATE 0.58 2.25 -1.67 0.44
SINCE SEP 1 0.58 2.25 -1.67 0.44
SINCE JAN 1 31.24 29.35 1.89 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 0 5 -5 0
MONTH TO DATE 51 54 -3 16
SINCE SEP 1 51 54 -3 16
SINCE JUL 1 66 67 -1 22
COOLING
YESTERDAY 3 2 1 12
MONTH TO DATE 95 81 14 126
SINCE SEP 1 95 81 14 126
SINCE JAN 1 902 887 15 948
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 3.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 48 500 PM
AVERAGE 74
..........................................................
THE WATERLOO IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 94 1937
MINIMUM TEMPERATURE (F) 50 26 1974
SUNRISE AND SUNSET
SEPTEMBER 22 2025.....SUNRISE 657 AM CDT SUNSET 706 PM CDT
SEPTEMBER 23 2025.....SUNRISE 658 AM CDT SUNSET 704 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$