Climatological Report (Daily)
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CDUS45 KRIW 210734
CLIP60


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT MON MAY 21 2018


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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 20 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    334 PM  66    2002  53      7       47
  MINIMUM         29    542 AM  17    2003  30     -1       26
  AVERAGE         45                        41      4       37

PRECIPITATION (IN)
  YESTERDAY        0.07          0.28 2005   0.07   0.00     0.05
  MONTH TO DATE    0.66                      1.40  -0.74     0.87
  SINCE MAR 1      6.33                      4.69   1.64     6.75
  SINCE JAN 1     11.80                      8.21   3.59    16.99

DEGREE DAYS
 HEATING
  YESTERDAY       20                        24     -4       28
  MONTH TO DATE  489                       531    -42      537
  SINCE MAR 1   2952                      2845    107     2693
  SINCE JUL 1  10931                     10782    149    10751

 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     7   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     1.8


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           400 AM
 LOWEST     40           200 PM
 AVERAGE    70

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   53        68      2012
 MINIMUM TEMPERATURE (F)   30        17      2001


SUNRISE AND SUNSET
MAY 21 2018...........SUNRISE   548 AM MDT   SUNSET   849 PM MDT
MAY 22 2018...........SUNRISE   547 AM MDT   SUNSET   850 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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