Climatological Report (Daily)
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117
CDUS45 KRIW 210031
CLIGEY


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
631 PM MDT WED SEP 20 2017


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

...THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 20 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         70        MM  85    2016  72     -2       85
  MINIMUM         37        MM  31    1999  41     -4       53
  AVERAGE         54

PRECIPITATION (IN)
  TODAY            0.00          0.30 2004   0.04  -0.04     0.00
  MONTH TO DATE    1.57                      0.59   0.98     0.58
  SINCE SEP 1      1.57                      0.59   0.98     0.58
  SINCE JAN 1      3.55                      6.04  -2.49     3.46

DEGREE DAYS
 HEATING
  TODAY           11                         9      2        0
  MONTH TO DATE   92                       100     -8       77
  SINCE SEP 1     92                       100     -8       77
  SINCE JUL 1     92                       121    -29       96

 COOLING
  TODAY            0                         0      0        4
  MONTH TO DATE   62                        34     28       41
  SINCE SEP 1     62                        34     28       41
  SINCE JAN 1    824                       667    157      886
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     8.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           400 AM
 LOWEST     17           300 PM
 AVERAGE    55

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


THE GREYBULL WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        86      2015
                                             2013
 MINIMUM TEMPERATURE (F)   41        32      2000
                                             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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