Star Valley Ranch weather by month
What a typical year looks like in Star Valley Ranch, Wyoming: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Bedford 3 SE, 13 km from Star Valley Ranch; records cover 1975–2025.
The year at a glance
- Precipitation a year
- 25.3 in642 mm
- Snow a year
- Rare
- Last spring freeze
- Jun 19
- First fall freeze
- Aug 30
- Heating degree days
- 9,615
- Cooling degree days
- 28
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −16°−27° (heating, 99%) and 88°31° (cooling, 1%).
Month by month
Star Valley Ranch in January
Highs average 28°−2° and lows 6°−14°, with 2.5 in64 mm of precipitation in a typical January.
- Record high
- 52°11° (2002)
- Record low
- −38°−39° (1979)
- Heating degree days
- 1477
- Cooling degree days
- 0
Star Valley Ranch in February
Highs average 33°0° and lows 8°−14°, with 2.5 in65 mm of precipitation in a typical February.
- Record high
- 54°12° (1977)
- Record low
- −31°−35° (1989)
- Heating degree days
- 1256
- Cooling degree days
- 0
Star Valley Ranch in March
Highs average 42°5° and lows 16°−9°, with 2.3 in57 mm of precipitation in a typical March.
- Record high
- 63°17° (1978)
- Record low
- −22°−30° (2002)
- Heating degree days
- 1127
- Cooling degree days
- 0
Star Valley Ranch in April
Highs average 50°10° and lows 23°−5°, with 2.3 in58 mm of precipitation in a typical April.
- Record high
- 77°25° (2012)
- Record low
- −2°−19° (1983)
- Heating degree days
- 856
- Cooling degree days
- 0
Star Valley Ranch in May
Highs average 61°16° and lows 32°0°, with 3.1 in78 mm of precipitation in a typical May.
- Record high
- 90°32° (1982)
- Record low
- 12°−11° (1983)
- Heating degree days
- 574
- Cooling degree days
- 0
Star Valley Ranch in June
Highs average 71°21° and lows 37°3°, with 2.2 in56 mm of precipitation in a typical June.
- Record high
- 92°33° (2002)
- Record low
- 17°−8° (2000)
- Heating degree days
- 337
- Cooling degree days
- 1
Star Valley Ranch in July
Highs average 80°27° and lows 43°6°, with 1.1 in28 mm of precipitation in a typical July.
- Record high
- 97°36° (2002)
- Record low
- 18°−8° (2000)
- Heating degree days
- 125
- Cooling degree days
- 18
Star Valley Ranch in August
Highs average 79°26° and lows 41°5°, with 1.3 in32 mm of precipitation in a typical August.
- Record high
- 98°37° (2001)
- Record low
- 24°−4° (1992)
- Heating degree days
- 154
- Cooling degree days
- 8
Star Valley Ranch in September
Highs average 70°21° and lows 34°1°, with 1.7 in43 mm of precipitation in a typical September.
- Record high
- 93°34° (2022)
- Record low
- 10°−12° (1999)
- Heating degree days
- 380
- Cooling degree days
- 1
Star Valley Ranch in OctoberThis month
Highs average 56°13° and lows 26°−3°, with 2.1 in53 mm of precipitation in a typical October.
- Record high
- 82°28° (2010)
- Record low
- −11°−24° (2019)
- Heating degree days
- 749
- Cooling degree days
- 0
Star Valley Ranch in November
Highs average 40°4° and lows 16°−9°, with 2.1 in54 mm of precipitation in a typical November.
- Record high
- 71°22° (2020)
- Record low
- −19°−28° (2010)
- Heating degree days
- 1108
- Cooling degree days
- 0
Star Valley Ranch in December
Highs average 28°−2° and lows 7°−14°, with 2.1 in53 mm of precipitation in a typical December.
- Record high
- 60°16° (2021)
- Record low
- −37°−38° (1990)
- Heating degree days
- 1472
- Cooling degree days
- 0