116
CDUS43 KDMX 180636
CLIMCW
CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
136 AM CDT MON AUG 18 2025
...............................
..THE MASON CITY IA CLIMATE SUMMARY FOR AUGUST 17 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 86 355 PM 101 1988 80 6 78
MINIMUM 70 740 AM 44 2012 58 12 62
AVERAGE 78 69 9 70
PRECIPITATION (IN)
YESTERDAY 0.08 1.79 1921 0.13 -0.05 0.00
MONTH TO DATE 1.25 2.11 -0.86 1.06
SINCE JUN 1 18.20 11.93 6.27 11.87
SINCE JAN 1 28.90 25.63 3.27 27.73
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 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
YESTERDAY 0 1 -1 0
MONTH TO DATE 3 7 -4 13
SINCE JUN 1 19 56 -37 25
SINCE JUL 1 6 17 -11 16
COOLING
YESTERDAY 13 5 8 5
MONTH TO DATE 106 93 13 71
SINCE JUN 1 564 447 117 416
SINCE JAN 1 591 485 106 433
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WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 8.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 74 200 PM
AVERAGE 87
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THE MASON CITY IA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 99 1936
1947
MINIMUM TEMPERATURE (F) 58 42 1950
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 623 AM CDT SUNSET 811 PM CDT
AUGUST 19 2025........SUNRISE 624 AM CDT SUNSET 809 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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