Climatological Report (Daily)
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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CDUS43 KDMX 212229
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
529 PM CDT MON SEP 21 2026
...................................
...THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 21 2026...
VALID TODAY AS OF 0520 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 59 1254 AM 93 1937 75 -16 78
2024
MINIMUM 54 922 AM 27 1918 50 4 58
AVERAGE 57 63 -6 68
PRECIPITATION (IN)
TODAY 0.37 3.08 1950 0.10 0.27 0.00
MONTH TO DATE 5.56 2.25 3.31 0.58
SINCE SEP 1 5.56 2.25 3.31 0.58
SINCE JAN 1 35.34 29.35 5.99 31.24
SNOWFALL (IN)
TODAY MM MM MM 0.0 MM 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 MM
DEGREE DAYS
HEATING
TODAY 8 5 3 0
MONTH TO DATE 26 54 -28 51
SINCE SEP 1 26 54 -28 51
SINCE JUL 1 27 67 -40 66
COOLING
TODAY 0 2 -2 3
MONTH TO DATE 126 81 45 95
SINCE SEP 1 126 81 45 95
SINCE JAN 1 954 887 67 902
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 11.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1200 PM
LOWEST 77 100 AM
AVERAGE 87
..........................................................
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 94 1937
MINIMUM TEMPERATURE (F) 50 26 1974
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 656 AM CDT SUNSET 708 PM CDT
SEPTEMBER 22 2026.....SUNRISE 657 AM CDT SUNSET 707 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$