Climatological Report (Daily)
Issued by NWS Des Moines, IA

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735
CDUS43 KDMX 180635
CLIDSM

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
135 AM CDT FRI SEP 18 2026

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

...THE DES MOINES IA CLIMATE SUMMARY FOR SEPTEMBER 17 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1878 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         79    452 PM  95    1925  77      2       81
  MINIMUM         68   1159 PM  37    1901  55     13       65
  AVERAGE         74                        66      8       73

PRECIPITATION (IN)
  YESTERDAY        0.00          1.52 1919   0.11  -0.11     0.54
  MONTH TO DATE   10.60                      1.88   8.72     1.04
  SINCE SEP 1     10.60                      1.88   8.72     1.04
  SINCE JAN 1     42.68                     28.98  13.70    29.86

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 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
  YESTERDAY        0                         3     -3        0
  MONTH TO DATE    5                        29    -24       29
  SINCE SEP 1      5                        29    -24       29
  SINCE JUL 1      5                        34    -29       37

 COOLING
  YESTERDAY        9                         4      5        8
  MONTH TO DATE  180                        87     93      107
  SINCE SEP 1    180                        87     93      107
  SINCE JAN 1   1298                      1022    276     1135
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED     5.2


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     71           400 PM
 AVERAGE    86

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


THE DES MOINES IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        94      1895
 MINIMUM TEMPERATURE (F)   55        36      1901
                                             1916


SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE   658 AM CDT   SUNSET   718 PM CDT
SEPTEMBER 19 2026.....SUNRISE   659 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.




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