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CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1229 AM MST SAT DEC 20 2014


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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR DECEMBER 19 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         27    355 PM  30    2004  23      4       26
  MINIMUM         22    314 AM -20    2012   3     19       -8
  AVERAGE         25                        13     12        9

PRECIPITATION (IN)
  YESTERDAY        0.04          0.64 2010   0.05  -0.01     0.00
  MONTH TO DATE    0.80                      0.87  -0.07     0.94
  SINCE DEC 1      0.80                      0.87  -0.07     0.94
  SINCE JAN 1     29.60                     19.67   9.93    19.83

DEGREE DAYS
 HEATING
  YESTERDAY       40                        52    -12       56
  MONTH TO DATE  776                       965   -189     1105
  SINCE DEC 1    776                       965   -189     1105
  SINCE JUL 1   4103                      4285   -182     4333

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     2.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           700 AM
 LOWEST     75           100 PM
 AVERAGE    86

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   23        33      2005
                                             2003
                                             2001
 MINIMUM TEMPERATURE (F)    3       -28      1998


SUNRISE AND SUNSET
DECEMBER 20 2014......SUNRISE   755 AM MST   SUNSET   444 PM MST
DECEMBER 21 2014......SUNRISE   755 AM MST   SUNSET   445 PM MST


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




$$





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