537
CDUS43 KDMX 182328
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
528 PM CST THU DEC 18 2025
...............................
..THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 18 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 39 700 AM 57 1923 33 6 31
2002
MINIMUM 16 459 PM -23 1983 16 0 22
AVERAGE 28 24 4 27
PRECIPITATION (IN)
TODAY 0.08 0.93 1968 0.05 0.03 0.00
MONTH TO DATE 0.40 0.88 -0.48 0.49
SINCE DEC 1 0.40 0.88 -0.48 0.49
SINCE JAN 1 35.28 35.73 -0.45 39.99
SNOWFALL (IN)
TODAY MM 4.7 2000 0.4 MM 0.0
MONTH TO DATE 4.1 5.5 -1.4 1.9
SINCE DEC 1 4.1 5.5 -1.4 1.9
SINCE JUL 1 18.6 8.9 9.7 2.1
SNOW DEPTH 3
DEGREE DAYS
HEATING
TODAY 37 40 -3 38
MONTH TO DATE 867 677 190 694
SINCE DEC 1 867 677 190 694
SINCE JUL 1 2040 2055 -15 1716
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 985 916 69 996
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 37 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 19.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 AM
LOWEST 62 400 PM
AVERAGE 81
......................................................
THE WATERLOO IA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 52 1979
1988
2018
MINIMUM TEMPERATURE (F) 16 -25 1985
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 735 AM CST SUNSET 438 PM CST
DECEMBER 19 2025......SUNRISE 735 AM CST SUNSET 439 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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