Climatological Report (Daily)
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CDUS43 KDMX 171026 RRA
CLIMCW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
424 AM CST SUN DEC 17 2017


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

...THE MASON CITY IA CLIMATE SUMMARY FOR DECEMBER 16 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         47    205 PM  61    1939  27     20       15
  MINIMUM         20   1159 PM -21    1932  11      9        8
  AVERAGE         34                        19     15       12

PRECIPITATION (IN)
  YESTERDAY        0.00          0.50 1908   0.04  -0.04     0.32
  MONTH TO DATE    0.02                      0.71  -0.69     1.00
  SINCE DEC 1      0.02                      0.71  -0.69     1.00
  SINCE JAN 1     30.48                     34.67  -4.19    46.58

SNOWFALL (IN)
  YESTERDAY        0.0           5.0  1940   0.3   -0.3      3.9
  MONTH TO DATE    T                         4.8   -4.8     10.1
  SINCE DEC 1      T                         4.8   -4.8     10.1
  SINCE JUL 1      0.2                       9.5   -9.3     10.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       31                        46    -15       53
  MONTH TO DATE  577                       695   -118      745
  SINCE DEC 1    577                       695   -118      745
  SINCE JUL 1   2080                      2375   -295     1909

 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    12   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     7.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88           800 PM
 LOWEST     49           200 PM
 AVERAGE    69

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


THE MASON CITY IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   27        57      1939
 MINIMUM TEMPERATURE (F)   10       -18      1983


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   740 AM CST   SUNSET   439 PM CST
DECEMBER 18 2017......SUNRISE   740 AM CST   SUNSET   440 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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