Climatological Report (Daily)
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241
CDUS45 KRIW 150728
CLIP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT AUG 15 2026

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR AUGUST 14 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         58  12:54 PM  84    2003  71    -13       78
  MINIMUM         41  11:59 PM  29    2005  38      3       39
  AVERAGE         50                        54     -4       59

PRECIPITATION (IN)
  YESTERDAY        0.05          0.33 2015   0.05   0.00     0.00
  MONTH TO DATE    0.52                      0.60  -0.08     0.05
  SINCE JUN 1      3.48                      4.49  -1.01     1.44
  SINCE JAN 1     11.72                     14.52  -2.80    10.67

DEGREE DAYS
 HEATING
  YESTERDAY       15                        10      5        6
  MONTH TO DATE  104                       130    -26      133
  SINCE JUN 1    734                       964   -230      806
  SINCE JUL 1    220                       426   -206      364

 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    10   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     1.6


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           3:00 AM
 LOWEST     74           6:00 PM
 AVERAGE    87

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        81      2003
                                             2023
 MINIMUM TEMPERATURE (F)   37        29      2009


SUNRISE AND SUNSET
AUGUST 15 2026........SUNRISE   6:25 AM MDT   SUNSET   8:27 PM MDT
AUGUST 16 2026........SUNRISE   6:26 AM MDT   SUNSET   8:25 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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