Climatological Report (Daily)
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752
CDUS45 KRIW 310727
CLIP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT MON AUG 31 2026

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 30 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         60   3:53 PM  78    2001  67     -7       68
                                      2008
                                      2016
  MINIMUM         33  11:59 PM  27    2005  34     -1       36
  AVERAGE         47                        50     -3       52

PRECIPITATION (IN)
  YESTERDAY        0.18          0.86 2014   0.05   0.13     0.00
  MONTH TO DATE    2.72                      1.29   1.43     1.09
  SINCE JUN 1      5.68                      5.18   0.50     2.48
  SINCE JAN 1     13.92                     15.21  -1.29    11.71

DEGREE DAYS
 HEATING
  YESTERDAY       18                        14      4       13
  MONTH TO DATE  236                       330    -94      272
  SINCE JUN 1    866                      1164   -298      945
  SINCE JUL 1    352                       626   -274      503

 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    18   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     4.2


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           6:00 AM
 LOWEST     22           5:00 PM
 AVERAGE    61

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   67        79      2016
 MINIMUM TEMPERATURE (F)   34        25      2005


SUNRISE AND SUNSET
AUGUST 31 2026........SUNRISE   6:43 AM MDT   SUNSET   8:00 PM MDT
SEPTEMBER  1 2026.....SUNRISE   6:44 AM MDT   SUNSET   7:58 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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