Thayne weather by month
What a typical year looks like in Thayne, Wyoming: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Afton, 22 km from Thayne; records cover 1957–2026.
The year at a glance
- Precipitation a year
- 17.7 in450 mm
- Snow a year
- 88 in223 cm
- Last spring freeze
- Jun 13
- First fall freeze
- Sep 4
- Heating degree days
- 9,689
- Cooling degree days
- 41
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 90°32° (cooling, 1%).
Month by month
Thayne in January
Highs average 26°−4° and lows 5°−15°, with 1.3 in32 mm of precipitation and 22 in55 cm of snow in a typical January.
- Record high
- 54°12° (1974)
- Record low
- −46°−43° (1979)
- Heating degree days
- 1542
- Cooling degree days
- 0
Thayne in February
Highs average 31°−1° and lows 8°−14°, with 1.3 in33 mm of precipitation and 15 in38 cm of snow in a typical February.
- Record high
- 56°13° (1958)
- Record low
- −40° (1982)
- Heating degree days
- 1287
- Cooling degree days
- 0
Thayne in March
Highs average 40°5° and lows 17°−9°, with 1.5 in37 mm of precipitation and 12 in31 cm of snow in a typical March.
- Record high
- 73°23° (2026)
- Record low
- −22°−30° (1976)
- Heating degree days
- 1135
- Cooling degree days
- 0
Thayne in April
Highs average 50°10° and lows 25°−4°, with 1.5 in37 mm of precipitation and 5 in13 cm of snow in a typical April.
- Record high
- 78°26° (1977)
- Record low
- −3°−19° (1975)
- Heating degree days
- 825
- Cooling degree days
- 0
Thayne in May
Highs average 60°16° and lows 33°1°, with 2.4 in60 mm of precipitation and 0.8 in2 cm of snow in a typical May.
- Record high
- 87°31° (2003)
- Record low
- 9°−13° (1988)
- Heating degree days
- 566
- Cooling degree days
- 0
Thayne in June
Highs average 71°21° and lows 38°4°, with 1.8 in46 mm of precipitation and 0.2 in0.5 cm of snow in a typical June.
- Record high
- 94°34° (1988)
- Record low
- 19°−7° (1976)
- Heating degree days
- 316
- Cooling degree days
- 1
Thayne in July
Highs average 80°27° and lows 44°7°, with 1.1 in27 mm of precipitation in a typical July.
- Record high
- 97°36° (2002)
- Record low
- 26°−3° (1981)
- Heating degree days
- 115
- Cooling degree days
- 24
Thayne in August
Highs average 79°26° and lows 43°6°, with 1.1 in28 mm of precipitation in a typical August.
- Record high
- 96°36° (2000)
- Record low
- 21°−6° (1974)
- Heating degree days
- 141
- Cooling degree days
- 16
Thayne in September
Highs average 69°21° and lows 34°1°, with 1.5 in39 mm of precipitation and 0.2 in0.5 cm of snow in a typical September.
- Record high
- 93°34° (1967)
- Record low
- 11°−12° (1983)
- Heating degree days
- 395
- Cooling degree days
- 0
Thayne in OctoberThis month
Highs average 56°13° and lows 26°−4°, with 1.6 in41 mm of precipitation and 4 in9 cm of snow in a typical October.
- Record high
- 83°28° (1992)
- Record low
- −7°−22° (2019)
- Heating degree days
- 755
- Cooling degree days
- 0
Thayne in November
Highs average 39°4° and lows 16°−9°, with 1.3 in34 mm of precipitation and 11 in29 cm of snow in a typical November.
- Record high
- 70°21° (1976)
- Record low
- −22°−30° (1979)
- Heating degree days
- 1116
- Cooling degree days
- 0
Thayne in December
Highs average 27°−3° and lows 7°−14°, with 1.4 in36 mm of precipitation and 18 in44 cm of snow in a typical December.
- Record high
- 58°14° (1995)
- Record low
- −38°−39° (1972)
- Heating degree days
- 1496
- Cooling degree days
- 0