947
CDUS43 KDMX 210637
CLIMCW
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
137 AM CDT SUN SEP 21 2025
...............................
..THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 20 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 71 405 PM 92 2022 73 -2 88
MINIMUM 53 626 AM 29 1991 47 6 52
AVERAGE 62 60 2 70
PRECIPITATION (IN)
YESTERDAY 0.00 2.27 2018 0.12 -0.12 0.00
MONTH TO DATE 0.98 2.34 -1.36 0.43
SINCE SEP 1 0.98 2.34 -1.36 0.43
SINCE JAN 1 32.80 29.65 3.15 28.69
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 3 6 -3 0
MONTH TO DATE 68 79 -11 33
SINCE SEP 1 68 79 -11 33
SINCE JUL 1 98 115 -17 54
COOLING
YESTERDAY 0 1 -1 5
MONTH TO DATE 60 47 13 74
SINCE SEP 1 60 47 13 74
SINCE JAN 1 698 586 112 593
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 4.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 66 1200 PM
AVERAGE 83
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THE MASON CITY IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 93 1937
2024
MINIMUM TEMPERATURE (F) 47 29 1999
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 700 AM CDT SUNSET 712 PM CDT
SEPTEMBER 22 2025.....SUNRISE 701 AM CDT SUNSET 710 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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