Climatological Report (Daily)
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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CDUS43 KDMX 210634
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
134 AM CDT FRI AUG 21 2026
...................................
...THE WATERLOO IA CLIMATE SUMMARY FOR AUGUST 20 2026...
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)
YESTERDAY
MAXIMUM 82 308 PM 101 1916 83 -1 83
MINIMUM 57 446 AM 33 1950 61 -4 66
AVERAGE 70 72 -2 75
PRECIPITATION (IN)
YESTERDAY 0.00 4.92 1966 0.14 -0.14 0.00
MONTH TO DATE 2.93 2.73 0.20 3.06
SINCE JUN 1 15.95 12.79 3.16 19.59
SINCE JAN 1 29.11 25.66 3.45 30.63
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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 14 21 -7 6
SINCE JUL 1 0 3 -3 0
COOLING
YESTERDAY 5 7 -2 10
MONTH TO DATE 158 158 0 176
SINCE JUN 1 674 667 7 737
SINCE JAN 1 767 739 28 783
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 47 300 PM
AVERAGE 70
..........................................................
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 2026........SUNRISE 623 AM CDT SUNSET 802 PM CDT
AUGUST 22 2026........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.
$$