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

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CDUS43 KDMX 182228
CLIALO

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
528 PM CDT FRI SEP 18 2026

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

...THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 18 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         77    249 PM  93    1955  76      1       81
  MINIMUM         63    946 AM  28    1929  52     11       60
  AVERAGE         70                        64      6       71

PRECIPITATION (IN)
  TODAY            0.94          1.34 1900   0.10   0.84      T
                                      2018
  MONTH TO DATE    3.68                      1.94   1.74     0.52
  SINCE SEP 1      3.68                      1.94   1.74     0.52
  SINCE JAN 1     33.46                     29.04   4.42    31.18

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                         4     -4        0
  MONTH TO DATE   16                        41    -25       50
  SINCE SEP 1     16                        41    -25       50
  SINCE JUL 1     17                        54    -37       65

 COOLING
  TODAY            5                         3      2        6
  MONTH TO DATE  122                        73     49       87
  SINCE SEP 1    122                        73     49       87
  SINCE JAN 1    950                       879     71      894
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED    12.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           500 AM
 LOWEST     64           200 PM
 AVERAGE    81

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


THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        95      1925
 MINIMUM TEMPERATURE (F)   51        32      1991


SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE   653 AM CDT   SUNSET   714 PM CDT
SEPTEMBER 19 2026.....SUNRISE   654 AM CDT   SUNSET   712 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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