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

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CDUS43 KDMX 180656 RRA
CLIALO

CLIMATE REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1255 AM CST MON DEC 18 2017


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

...THE WATERLOO IA CLIMATE SUMMARY FOR DECEMBER 17 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1895 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         36    314 PM  58    1939  30      6       15
  MINIMUM         22    314 AM -16    1914  13      9       -7
  AVERAGE         29                        21      8        4

PRECIPITATION (IN)
  YESTERDAY        0.00          0.28 1895   0.04  -0.04     0.03
  MONTH TO DATE    0.04                      0.75  -0.71     1.00
  SINCE DEC 1      0.04                      0.75  -0.71     1.00
  SINCE JAN 1     29.50                     34.15  -4.65    40.97

SNOWFALL (IN)
  YESTERDAY        0.0           2.5  1990   0.4   -0.4      0.5
  MONTH TO DATE    T                         5.6   -5.6      8.5
  SINCE DEC 1      T                         5.6   -5.6      8.5
  SINCE JUL 1      T                         9.0   -9.0      8.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       36                        44     -8       61
  MONTH TO DATE  598                       694    -96      776
  SINCE DEC 1    598                       694    -96      776
  SINCE JUL 1   1989                      2177   -188     1765

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    720                       799    -79      869
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED     5.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 AM
 LOWEST     75           500 PM
 AVERAGE    88

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


THE WATERLOO IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   30        57      2002
                                             1923
 MINIMUM TEMPERATURE (F)   12       -23      1983


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   735 AM CST   SUNSET   438 PM CST
DECEMBER 19 2017......SUNRISE   735 AM CST   SUNSET   439 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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