Climatological Report (Daily)
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CDUS45 KRIW 280734
CLIP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
134 AM MDT FRI AUG 28 2026

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 27 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         77  12:46 PM  79    2011  68      9       59
                                      2012
                                      2017
  MINIMUM         40   6:15 AM  29    2019  35      5       49
  AVERAGE         59                        51      8       54

PRECIPITATION (IN)
  YESTERDAY        0.00          1.03 2018   0.05  -0.05     0.28
  MONTH TO DATE    2.11                      1.15   0.96     0.37
  SINCE JUN 1      5.07                      5.04   0.03     1.76
  SINCE JAN 1     13.31                     15.07  -1.76    10.99

DEGREE DAYS
 HEATING
  YESTERDAY        6                        14     -8       11
  MONTH TO DATE  195                       288    -93      225
  SINCE JUN 1    825                      1122   -297      898
  SINCE JUL 1    311                       584   -273      456

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      2                         0      2        1
  SINCE JAN 1      2                         0      2        1
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     2.4


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    93           5:00 AM
 LOWEST     24           5:00 PM
 AVERAGE    59

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        82      2012
 MINIMUM TEMPERATURE (F)   34        28      2008


SUNRISE AND SUNSET
AUGUST 28 2026........SUNRISE   6:40 AM MDT   SUNSET   8:05 PM MDT
AUGUST 29 2026........SUNRISE   6:41 AM MDT   SUNSET   8:03 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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