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Climatological Report (Daily)
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CDUS45 KRIW 220734
CLIP60


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT TUE MAY 22 2018


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...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 21 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         60    225 PM  68    2012  53      7       53
  MINIMUM         31    531 AM  17    2001  30      1       28
  AVERAGE         46                        41      5       41

PRECIPITATION (IN)
  YESTERDAY        0.00          0.72 2008   0.07  -0.07     0.00
  MONTH TO DATE    0.66                      1.47  -0.81     0.87
  SINCE MAR 1      6.33                      4.76   1.57     6.75
  SINCE JAN 1     11.80                      8.28   3.52    16.99

DEGREE DAYS
 HEATING
  YESTERDAY       19                        24     -5       24
  MONTH TO DATE  508                       555    -47      561
  SINCE MAR 1   2971                      2869    102     2717
  SINCE JUL 1  10950                     10806    144    10775

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


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     1.7


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   100          1200 AM
 LOWEST     40           300 PM
 AVERAGE    70

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   53        64      2001
 MINIMUM TEMPERATURE (F)   30        24      2010
                                             2009


SUNRISE AND SUNSET
MAY 22 2018...........SUNRISE   547 AM MDT   SUNSET   850 PM MDT
MAY 23 2018...........SUNRISE   546 AM MDT   SUNSET   851 PM MDT


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




$$
National Weather Service National Headquarters
