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

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669
CDUS43 KDMX 200637
CLIALO

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
137 AM CDT SUN SEP 20 2026

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

...THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 19 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         76    253 PM  95    1925  76      0       77
  MINIMUM         61    409 AM  32    1991  51     10       62
  AVERAGE         69                        64      5       70

PRECIPITATION (IN)
  YESTERDAY        0.98          4.50 1919   0.11   0.87     0.06
  MONTH TO DATE    4.68                      2.05   2.63     0.58
  SINCE SEP 1      4.68                      2.05   2.63     0.58
  SINCE JAN 1     34.46                     29.15   5.31    31.24

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                         4     -4        0
  MONTH TO DATE   16                        45    -29       50
  SINCE SEP 1     16                        45    -29       50
  SINCE JUL 1     17                        58    -41       65

 COOLING
  YESTERDAY        4                         3      1        5
  MONTH TO DATE  126                        76     50       92
  SINCE SEP 1    126                        76     50       92
  SINCE JAN 1    954                       882     72      899
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     S (160)
  AVERAGE WIND SPEED    10.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 AM
 LOWEST     79           200 PM
 AVERAGE    90

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


THE WATERLOO IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        96      2022
 MINIMUM TEMPERATURE (F)   51        27      1991


SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE   655 AM CDT   SUNSET   710 PM CDT
SEPTEMBER 21 2026.....SUNRISE   656 AM CDT   SUNSET   708 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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