Climatological Report (Daily)
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000
CDUS45 KRIW 200733
CLIGEY


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT WED SEP 20 2017


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

...THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 19 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         57    409 PM  92    2010  73    -16       83
  MINIMUM         45   1147 PM  30    2003  42      3       50
  AVERAGE         51                        57     -6       67

PRECIPITATION (IN)
  YESTERDAY        0.11R         0.07 2001   0.03   0.08     0.00
  MONTH TO DATE    1.57                      0.55   1.02     0.58
  SINCE SEP 1      1.57                      0.55   1.02     0.58
  SINCE JAN 1      3.55                      6.00  -2.45     3.46

DEGREE DAYS
 HEATING
  YESTERDAY       14                         8      6        0
  MONTH TO DATE   81                        91    -10       77
  SINCE SEP 1     81                        91    -10       77
  SINCE JUL 1     81                       112    -31       96

 COOLING
  YESTERDAY        0                         0      0        2
  MONTH TO DATE   62                        34     28       37
  SINCE SEP 1     62                        34     28       37
  SINCE JAN 1    824                       667    157      882
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     9.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           100 AM
 LOWEST     43           500 PM
 AVERAGE    70

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


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        85      2016
 MINIMUM TEMPERATURE (F)   41        31      1999


SUNRISE AND SUNSET
SEPTEMBER 20 2017.....SUNRISE   657 AM MDT   SUNSET   713 PM MDT
SEPTEMBER 21 2017.....SUNRISE   659 AM MDT   SUNSET   711 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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