Climatological Report (Daily)
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CDUS43 KDMX 190632 RRA
CLIMCW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1232 AM CST TUE DEC 19 2017


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

...THE MASON CITY IA CLIMATE SUMMARY FOR DECEMBER 18 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         44    326 PM  61    1923  27     17       -1
  MINIMUM         19    713 AM -26    1983  10      9      -23
  AVERAGE         32                        18     14      -12

PRECIPITATION (IN)
  YESTERDAY        0.00          1.00 1930   0.04  -0.04     0.00
  MONTH TO DATE    0.02                      0.79  -0.77     1.07
  SINCE DEC 1      0.02                      0.79  -0.77     1.07
  SINCE JAN 1     30.48                     34.75  -4.27    46.65

SNOWFALL (IN)
  YESTERDAY        0.0           5.2  1968   0.3   -0.3      0.0
  MONTH TO DATE    T                         5.4   -5.4     11.3
  SINCE DEC 1      T                         5.4   -5.4     11.3
  SINCE JUL 1      0.2                      10.1   -9.9     11.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       33                        47    -14       77
  MONTH TO DATE  651                       788   -137      888
  SINCE DEC 1    651                       788   -137      888
  SINCE JUL 1   2154                      2468   -314     2052

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    603                       616    -13      697
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    10.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           500 AM
 LOWEST     54           900 PM
 AVERAGE    77

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


THE MASON CITY IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   27        48      1979
 MINIMUM TEMPERATURE (F)   10       -26      1983


SUNRISE AND SUNSET
DECEMBER 19 2017......SUNRISE   741 AM CST   SUNSET   440 PM CST
DECEMBER 20 2017......SUNRISE   741 AM CST   SUNSET   441 PM CST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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