Climatological Report (Daily)
Issued by NWS
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135
CDUS43 KDMX 170631
CLIMIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
131 AM CDT MON AUG 17 2026
...................................
...THE MARSHALLTOWN IA CLIMATE SUMMARY FOR AUGUST 16 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999
WEATHER ITEM OBSERVED TIME NORMAL DEPARTURE LAST
VALUE (LST) VALUE FROM YEAR
NORMAL
.......................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 356 PM 81 -2 92
MINIMUM 62 1124 PM 60 2 70
AVERAGE 71 70 1 81
PRECIPITATION (IN)
YESTERDAY 0.00 0.13 -0.13
MONTH TO DATE 2.88 1.97 0.91
SINCE JAN 1 30.03 22.45 7.58
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 1
SINCE JUN 1 14 33 -19 9
SINCE JUL 1 0 7 -7 1
COOLING
YESTERDAY 6 6 0 16
MONTH TO DATE 128 106 22 115
SINCE JUN 1 629 519 110 642
SINCE JAN 1 713 573 140 667
.......................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 7.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 66 300 PM
AVERAGE 83
..........................................................
THE MARSHALLTOWN IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 MM MM
MINIMUM TEMPERATURE (F) 60 MM MM
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 622 AM CDT SUNSET 809 PM CDT
AUGUST 18 2026........SUNRISE 623 AM CDT SUNSET 808 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$