Climatological Report (Daily)
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CDUS43 KDMX 180635
CLIMCW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
135 AM CDT FRI SEP 18 2026

...................................

...THE MASON CITY IA CLIMATE SUMMARY FOR SEPTEMBER 17 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         69    151 PM  94    1925  74     -5       67
  MINIMUM         63   1021 PM  31    1943  48     15       57
  AVERAGE         66                        61      5       62

PRECIPITATION (IN)
  YESTERDAY        0.02          2.77 1977   0.11  -0.09     0.46
  MONTH TO DATE    1.61                      1.99  -0.38     0.84
  SINCE SEP 1      1.61                      1.99  -0.38     0.84
  SINCE JAN 1     23.88                     29.30  -5.42    32.66

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        0                         6     -6        3
  MONTH TO DATE   22                        61    -39       65
  SINCE SEP 1     22                        61    -39       65
  SINCE JUL 1     25                        97    -72       95

 COOLING
  YESTERDAY        1                         2     -1        0
  MONTH TO DATE   92                        42     50       56
  SINCE SEP 1     92                        42     50       56
  SINCE JAN 1    744                       581    163      694
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED     5.4


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     81           400 PM
 AVERAGE    91

..........................................................


THE MASON CITY IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        92      1947
 MINIMUM TEMPERATURE (F)   48        26      1929


SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE   656 AM CDT   SUNSET   718 PM CDT
SEPTEMBER 19 2026.....SUNRISE   657 AM CDT   SUNSET   716 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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