Climatological Report (Daily)
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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908
CDUS43 KDMX 210632
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
132 AM CDT THU AUG 21 2025
...................................
...THE WATERLOO IA CLIMATE SUMMARY FOR AUGUST 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 83 317 PM 101 1916 83 0 78
MINIMUM 66 1159 PM 33 1950 61 5 56
AVERAGE 75 72 3 67
PRECIPITATION (IN)
YESTERDAY 0.00 4.92 1966 0.14 -0.14 0.00
MONTH TO DATE 3.06 2.73 0.33 0.61
SINCE JUN 1 19.59 12.79 6.80 13.24
SINCE JAN 1 30.63 25.66 4.97 32.48
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 JUN 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 0 0 0
MONTH TO DATE 0 0 0 3
SINCE JUN 1 6 21 -15 4
SINCE JUL 1 0 3 -3 4
COOLING
YESTERDAY 10 7 3 2
MONTH TO DATE 176 158 18 140
SINCE JUN 1 737 667 70 670
SINCE JAN 1 783 739 44 706
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 5.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 100 AM
LOWEST 60 200 PM
AVERAGE 80
..........................................................
THE WATERLOO IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 100 1916
MINIMUM TEMPERATURE (F) 60 39 2004
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 623 AM CDT SUNSET 801 PM CDT
AUGUST 22 2025........SUNRISE 624 AM CDT SUNSET 800 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$