557
CDUS43 KDMX 182237
CLIALO
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
537 PM CDT THU SEP 18 2025
...............................
..THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 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 81 1200 PM 93 1955 76 5 89
MINIMUM 60 503 AM 28 1929 52 8 62
AVERAGE 71 64 7 76
PRECIPITATION (IN)
TODAY T 1.34 1900 0.10 -0.10 0.00
2018
MONTH TO DATE 0.52 1.94 -1.42 0.10
SINCE SEP 1 0.52 1.94 -1.42 0.10
SINCE JAN 1 31.18 29.04 2.14 33.75
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 50 41 9 16
SINCE SEP 1 50 41 9 16
SINCE JUL 1 65 54 11 22
COOLING
TODAY 6 3 3 11
MONTH TO DATE 87 73 14 90
SINCE SEP 1 87 73 14 90
SINCE JAN 1 894 879 15 912
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 60 1200 PM
AVERAGE 80
......................................................
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 2025.....SUNRISE 653 AM CDT SUNSET 713 PM CDT
SEPTEMBER 19 2025.....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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