645
CDUS45 KRIW 170733
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT SUN SEP 17 2023
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR SEPTEMBER 16 2023
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 67 MM 77 2000 61 6 48
MINIMUM 30 5:00 AM 27 2007 30 0 37
2016
2017
AVERAGE 49 45 4 43
PRECIPITATION (IN)
YESTERDAY 0.00 0.38 2022 0.05 -0.05 0.38
MONTH TO DATE 1.88 0.80 1.08 0.81
SINCE SEP 1 1.88 0.80 1.08 0.81
SINCE JAN 1 19.91 16.06 3.85 18.82
DEGREE DAYS
HEATING
YESTERDAY 16 20 -4 22
MONTH TO DATE 246 276 -30 194
SINCE SEP 1 246 276 -30 194
SINCE JUL 1 779 918 -139 638
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION E (99)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 1.8
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 96 7:00 AM
LOWEST 28 4:00 PM
AVERAGE 62
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 73 2009
2020
MINIMUM TEMPERATURE (F) 30 24 2003
2017
SUNRISE AND SUNSET
SEPTEMBER 17 2023.....SUNRISE 7:03 AM MDT SUNSET 7:29 PM MDT
SEPTEMBER 18 2023.....SUNRISE 7:04 AM MDT SUNSET 7:27 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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