Climatological Report (Daily)
Issued by NWS
Issued by NWS
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809
CDUS45 KRIW 300730
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT THU JUL 30 2026
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 29 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 79 1:31 PM 82 2006 74 5 77
MINIMUM 45 5:01 AM 28 2015 40 5 43
AVERAGE 62 57 5 60
PRECIPITATION (IN)
YESTERDAY 0.00 0.60 2017 0.04 -0.04 0.00
MONTH TO DATE 0.85 1.42 -0.57 0.49
SINCE JUN 1 2.96 3.80 -0.84 1.14
SINCE JAN 1 11.20 13.83 -2.63 10.37
DEGREE DAYS
HEATING
YESTERDAY 3 8 -5 5
MONTH TO DATE 111 278 -167 216
SINCE JUN 1 625 816 -191 658
SINCE JUL 1 111 278 -167 216
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 1
SINCE JUN 1 2 0 2 1
SINCE JAN 1 2 0 2 1
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 2.1
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 90 5:00 AM
LOWEST 24 4:00 PM
AVERAGE 57
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 82 2000
2012
MINIMUM TEMPERATURE (F) 40 29 2009
SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE 6:06 AM MDT SUNSET 8:49 PM MDT
JULY 31 2026..........SUNRISE 6:07 AM MDT SUNSET 8:48 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$