Climatological Report (Daily)
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CDUS45 KRIW 210730
CLIP60


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT MON AUG 21 2017


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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 20 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         72    217 PM  81    2013  72      0       69
  MINIMUM         34    554 AM  27    2016  38     -4       27
  AVERAGE         53                        55     -2       48

PRECIPITATION (IN)
  YESTERDAY        0.00          0.16 2014   0.04  -0.04     0.00
  MONTH TO DATE    0.77                      0.92  -0.15     0.18
  SINCE JUN 1      4.55                      4.39   0.16     2.04
  SINCE JAN 1     21.76                     13.47   8.29    11.10

DEGREE DAYS
 HEATING
  YESTERDAY       12                        10      2       17
  MONTH TO DATE  223                       176     47      138
  SINCE JUN 1    945                       952     -7      814
  SINCE JUL 1    449                       459    -10      446

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


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     2.3


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    89           400 AM
 LOWEST     15           300 PM
 AVERAGE    52

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        82      2009
 MINIMUM TEMPERATURE (F)   38        32      2000


SUNRISE AND SUNSET
AUGUST 21 2017........SUNRISE   632 AM MDT   SUNSET   817 PM MDT
AUGUST 22 2017........SUNRISE   633 AM MDT   SUNSET   815 PM MDT


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




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