Climatological Report (Daily)
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CDUS43 KDMX 310639 RRC
CLIMCW

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1237 AM CST SUN DEC 31 2017


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

...THE MASON CITY IA CLIMATE SUMMARY FOR DECEMBER 30 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         -3   1239 AM  54    2004  25    -28       34
                                      1965
  MINIMUM        -13    837 AM -20    1968   8    -21       15
  AVERAGE         -8                        16    -24       25

PRECIPITATION (IN)
  YESTERDAY        0.00          0.75 1907   0.03  -0.03     0.00
  MONTH TO DATE    0.17                      1.21  -1.04     2.16
  SINCE DEC 1      0.17                      1.21  -1.04     2.16
  SINCE JAN 1     30.63                     35.17  -4.54    47.74

SNOWFALL (IN)
  YESTERDAY        0.0          15.0  1907   0.3   -0.3      0.0
  MONTH TO DATE    4.0                       9.0   -5.0     14.9
  SINCE DEC 1      4.0                       9.0   -5.0     14.9
  SINCE JUL 1      4.2                      13.7   -9.5     14.9
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       73                        48     25       40
  MONTH TO DATE 1305                      1360    -55     1350
  SINCE DEC 1   1305                      1360    -55     1350
  SINCE JUL 1   2808                      3040   -232     2514

 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    26   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    16.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    79          1200 AM
 LOWEST     64           100 PM
 AVERAGE    72

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


THE MASON CITY IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   25        52      1965
 MINIMUM TEMPERATURE (F)    8       -25      1898


SUNRISE AND SUNSET
DECEMBER 31 2017......SUNRISE   745 AM CST   SUNSET   448 PM CST
JANUARY  1 2018.......SUNRISE   745 AM CST   SUNSET   449 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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