Climatological Report (Daily)
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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990
CDUS43 KDMX 152228
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
528 PM CDT TUE SEP 15 2026
...................................
...THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 15 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 71 228 PM 100 1927 77 -6 89
MINIMUM 68 359 PM 30 2007 53 15 68
AVERAGE 70 65 5 79
PRECIPITATION (IN)
TODAY 0.60 1.51 2016 0.10 0.50 0.03
MONTH TO DATE 1.95 1.64 0.31 0.11
SINCE SEP 1 1.95 1.64 0.31 0.11
SINCE JAN 1 31.73 28.74 2.99 30.77
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 3 -3 0
MONTH TO DATE 12 29 -17 50
SINCE SEP 1 12 29 -17 50
SINCE JUL 1 13 42 -29 65
COOLING
TODAY 5 3 2 14
MONTH TO DATE 118 64 54 65
SINCE SEP 1 118 64 54 65
SINCE JAN 1 946 870 76 872
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 800 AM
LOWEST 68 300 PM
AVERAGE 83
..........................................................
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 97 1931
MINIMUM TEMPERATURE (F) 52 31 1984
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 650 AM CDT SUNSET 719 PM CDT
SEPTEMBER 16 2026.....SUNRISE 651 AM CDT SUNSET 717 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$