760
CDUS43 KDMX 212229
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
529 PM CDT SUN SEP 21 2025
...............................
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 21 2025
VALID TODAY AS OF 0520 PM LOCAL TIME.
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)
TODAY
MAXIMUM 78 358 PM 93 1937 75 3 93
2024
MINIMUM 58 621 AM 27 1918 50 8 60
AVERAGE 68 63 5 77
PRECIPITATION (IN)
TODAY 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)
TODAY 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
TODAY 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
TODAY 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 8 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 2.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 50 400 PM
AVERAGE 75
......................................................
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 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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