Climatological Report (Daily)
Issued by NWS Des Moines, IA

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CDUS43 KDMX 180656
CLIDSM

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1245 AM CST MON DEC 18 2017


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

...THE DES MOINES IA CLIMATE SUMMARY FOR DECEMBER 17 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1878 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         39    145 PM  64    1939  33      6       22
  MINIMUM         29   1159 PM  -9    1964  17     12       -4
  AVERAGE         34                        25      9        9

PRECIPITATION (IN)
  YESTERDAY        0.02          0.44 1895   0.05  -0.03     0.07
  MONTH TO DATE    0.04                      0.86  -0.82     0.68
  SINCE DEC 1      0.04                      0.86  -0.82     0.68
  SINCE JAN 1     29.82                     35.46  -5.64    33.80

SNOWFALL (IN)
  YESTERDAY       MM             2.8  1951   0.3   MM        1.7
  MONTH TO DATE    T                         5.0   -5.0      3.4
  SINCE DEC 1      T                         5.0   -5.0      3.4
  SINCE JUL 1      T                         7.9   -7.9      3.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       31                        40     -9       56
  MONTH TO DATE  507                       633   -126      685
  SINCE DEC 1    507                       633   -126      685
  SINCE JUL 1   1562                      1891   -329     1368

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1306                      1066    240     1448
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     4.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1000 PM
 LOWEST     69           100 AM
 AVERAGE    77

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


THE DES MOINES IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        64      1976
 MINIMUM TEMPERATURE (F)   17       -16      1985
                                             1983


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   736 AM CST   SUNSET   447 PM CST
DECEMBER 19 2017......SUNRISE   737 AM CST   SUNSET   447 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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