Climatological Report (Daily)
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CDUS45 KRIW 210737
CLIGEY


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
135 AM MDT SAT OCT 21 2017


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

...THE GREYBULL WY CLIMATE SUMMARY FOR OCTOBER 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         77R   126 PM  77    2014  58     19       55
  MINIMUM         34    547 AM  21    1999  31      3       28
  AVERAGE         56                        45     11       42

PRECIPITATION (IN)
  YESTERDAY        T             0.47 2007   0.01  -0.01     0.00
  MONTH TO DATE    T                         0.47  -0.47     0.97
  SINCE SEP 1      2.00                      1.35   0.65     3.73
  SINCE JAN 1      3.98                      6.80  -2.82     6.61

DEGREE DAYS
 HEATING
  YESTERDAY        9                        20    -11       23
  MONTH TO DATE  354                       337     17      299
  SINCE SEP 1    585                       547     38      443
  SINCE JUL 1    585                       568     17      462

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1     62                        36     26       42
  SINCE JAN 1    824                       669    155      887
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    11.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82           400 AM
 LOWEST     22           100 PM
 AVERAGE    52

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


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   58        83      2003
 MINIMUM TEMPERATURE (F)   30        23      1998


SUNRISE AND SUNSET
OCTOBER 21 2017.......SUNRISE   736 AM MDT   SUNSET   617 PM MDT
OCTOBER 22 2017.......SUNRISE   737 AM MDT   SUNSET   616 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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