Climatological Report (Daily)
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829
CDUS45 KRIW 160735
CLIGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
135 AM MDT SUN MAY 16 2021

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

...THE GREYBULL WY CLIMATE SUMMARY FOR MAY 15 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2021


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         71        MM  87    2012  70      1       67
  MINIMUM         50        MM  35    2004  43      7       44
  AVERAGE         61                        57      4       56

PRECIPITATION (IN)
  YESTERDAY        0.00          0.29 2015   0.04  -0.04     0.08
  MONTH TO DATE    0.06                      0.53  -0.47     0.21
  SINCE MAR 1      0.86                      1.28  -0.42     0.41
  SINCE JAN 1      1.13                      1.55  -0.42     1.02

DEGREE DAYS
 HEATING
  YESTERDAY        4                         9     -5        9
  MONTH TO DATE  169                       171     -2      180
  SINCE MAR 1   1618                      1561     57     1630
  SINCE JUL 1   7262                      7385   -123     7364

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    0                         1     -1        0
  SINCE MAR 1      0                         2     -2        0
  SINCE JAN 1      0                         2     -2        0
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     6.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80           6:00 AM
 LOWEST     30           3:00 PM
 AVERAGE    55

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


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        90      2012
 MINIMUM TEMPERATURE (F)   44        36      2009


SUNRISE AND SUNSET
MAY 16 2021...........SUNRISE   5:43 AM MDT   SUNSET   8:35 PM MDT
MAY 17 2021...........SUNRISE   5:42 AM MDT   SUNSET   8:36 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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