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

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CDUS43 KDMX 172230
CLIALO

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
530 PM CDT SUN AUG 17 2025

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

...THE WATERLOO IA CLIMATE SUMMARY FOR AUGUST 17 2025...
VALID TODAY AS OF 0520 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         89    223 PM 105    1988  83      6       82
  MINIMUM         70    534 AM  46    1962  61      9       66
  AVERAGE         80                        72      8       74

PRECIPITATION (IN)
  TODAY            0.23          1.42 1938   0.15   0.08     0.02
  MONTH TO DATE    2.43                      2.31   0.12     0.61
  SINCE JUN 1     18.96                     12.37   6.59    13.24
  SINCE JAN 1     30.00                     25.24   4.76    32.48

SNOWFALL (IN)
  TODAY           MM            MM      MM   0.0   MM        0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 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                         0      0        0
  MONTH TO DATE    0                         0      0        3
  SINCE JUN 1      6                        21    -15        4
  SINCE JUL 1      0                         3     -3        4

 COOLING
  TODAY           15                         7      8        9
  MONTH TO DATE  143                       137      6      125
  SINCE JUN 1    704                       646     58      655
  SINCE JAN 1    750                       718     32      691
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     8.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           200 AM
 LOWEST     72           100 PM
 AVERAGE    84

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


THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       110      1936
 MINIMUM TEMPERATURE (F)   61        43      1977
                                             2012


SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE   619 AM CDT   SUNSET   807 PM CDT
AUGUST 18 2025........SUNRISE   620 AM CDT   SUNSET   806 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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