Climatological Report (Daily)
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319
CDUS45 KRIW 280726
CLIP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT THU AUG 28 2025

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 27 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         59  10:52 AM  79    2011  68     -9       69
                                      2012
                                      2017
  MINIMUM         49   5:49 AM  29    2019  35     14       30
  AVERAGE         54                        51      3       50

PRECIPITATION (IN)
  YESTERDAY        0.28          1.03 2018   0.05   0.23     0.00
  MONTH TO DATE    0.37                      1.15  -0.78     1.25
  SINCE JUN 1      1.76                      5.04  -3.28     2.99
  SINCE JAN 1     10.99                     15.07  -4.08    15.19

DEGREE DAYS
 HEATING
  YESTERDAY       11                        14     -3       15
  MONTH TO DATE  225                       288    -63      256
  SINCE JUN 1    898                      1122   -224      947
  SINCE JUL 1    456                       584   -128      518

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


WIND (MPH)
  HIGHEST WIND SPEED     5   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     0.5


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   100           9:00 PM
 LOWEST     58          10:00 AM
 AVERAGE    79

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


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 2025........SUNRISE   6:40 AM MDT   SUNSET   8:05 PM MDT
AUGUST 29 2025........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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