850
CDUS45 KRIW 200729
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT MON OCT 20 2025
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR OCTOBER 19 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 49 12:32 PM 62 2003 44 5 49
2023
MINIMUM 24 7:14 AM 14 1999 21 3 24
AVERAGE 37 32 5 37
PRECIPITATION (IN)
YESTERDAY 0.42 0.70 2019 0.06 0.36 0.00
MONTH TO DATE 2.87 1.09 1.78 0.24
SINCE SEP 1 4.33 2.66 1.67 1.67
SINCE JAN 1 16.04 17.92 -1.88 16.86
DEGREE DAYS
HEATING
YESTERDAY 28 33 -5 28
MONTH TO DATE 491 549 -58 400
SINCE SEP 1 975 1137 -162 879
SINCE JUL 1 1491 1779 -288 1456
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JAN 1 1 0 1 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 7:00 PM
LOWEST 46 12:00 PM
AVERAGE 71
......................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 44 63 2003
2023
MINIMUM TEMPERATURE (F) 21 14 2007
SUNRISE AND SUNSET
OCTOBER 20 2025.......SUNRISE 7:44 AM MDT SUNSET 6:28 PM MDT
OCTOBER 21 2025.......SUNRISE 7:45 AM MDT SUNSET 6:27 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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