Climatological Report (Daily)
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373
CDUS43 KDMX 210632
CLIMIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
132 AM CDT MON SEP 21 2026

...................................

...THE MARSHALLTOWN IA CLIMATE SUMMARY FOR SEPTEMBER 20 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         66   1126 AM  74     -8       75
  MINIMUM         59   1159 PM  49     10       58
  AVERAGE         63            62      1       67

PRECIPITATION (IN)
  YESTERDAY        0.72          0.11   0.61
  MONTH TO DATE    5.01          2.22   2.79
  SINCE JAN 1     35.56         26.58   8.98

DEGREE DAYS
 HEATING
  YESTERDAY        2             5     -3        0
  MONTH TO DATE   13            66    -53       56
  SINCE SEP 1     13            66    -53       56
  SINCE JUL 1     13            90    -77       74

 COOLING
  YESTERDAY        0             2     -2        2
  MONTH TO DATE  144            57     87       91
  SINCE SEP 1    144            57     87       91
  SINCE JAN 1    953           704    249      837
.......................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED    13.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           200 AM
 LOWEST     75           800 PM
 AVERAGE    86

..........................................................


THE MARSHALLTOWN IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        MM        MM
 MINIMUM TEMPERATURE (F)   49        MM        MM


SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE   658 AM CDT   SUNSET   710 PM CDT
SEPTEMBER 22 2026.....SUNRISE   659 AM CDT   SUNSET   709 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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