


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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483 CDUS43 KDMX 010802 CLIMCW CLIMATE REPORT NATIONAL WEATHER SERVICE DES MOINES IA 302 AM CDT MON SEP 01 2025 ................................... ...THE MASON CITY IA CLIMATE SUMMARY FOR AUGUST 31 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 76 MM 94 1948 79 -3 82 MINIMUM 54 MM 38 2009 54 0 56 AVERAGE 65 66 -1 69 PRECIPITATION (IN) YESTERDAY 0.00 1.53 1969 0.12 -0.12 0.00 MONTH TO DATE 4.17 3.79 0.38 1.59 SINCE JUN 1 21.12 13.61 7.51 12.40 SINCE JAN 1 31.82 27.31 4.51 28.26 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 2 -2 0 MONTH TO DATE 27 25 2 18 SINCE JUN 1 43 74 -31 30 SINCE JUL 1 30 35 -5 21 COOLING YESTERDAY 0 3 -3 4 MONTH TO DATE 153 147 6 157 SINCE JUN 1 611 501 110 502 SINCE JAN 1 638 539 99 519 ................................................................... WIND (MPH) HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (130) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 5.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 1200 AM LOWEST 66 400 PM AVERAGE 83 .......................................................... THE MASON CITY IA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 97 1913 MINIMUM TEMPERATURE (F) 54 35 1949 SUNRISE AND SUNSET SEPTEMBER 1 2025.....SUNRISE 638 AM CDT SUNSET 748 PM CDT SEPTEMBER 2 2025.....SUNRISE 639 AM CDT SUNSET 746 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$