Climatological Report (Daily)
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.




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