Kemmerer weather by month
What a typical year looks like in Kemmerer, Wyoming: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Fossil Butte, 19 km from Kemmerer; records cover 1990–2026.
The year at a glance
- Precipitation a year
- 11.7 in298 mm
- Snow a year
- Rare
- Last spring freeze
- Jun 24
- First fall freeze
- Jul 15
- Heating degree days
- 9,718
- Cooling degree days
- 60
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −18°−28° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Kemmerer in January
Highs average 28°−2° and lows 5°−15°, with 0.74 in19 mm of precipitation in a typical January.
- Record high
- 53°12° (2015)
- Record low
- −38°−39° (2017)
- Heating degree days
- 1513
- Cooling degree days
- 0
Kemmerer in February
Highs average 31°−1° and lows 6°−14°, with 0.78 in20 mm of precipitation in a typical February.
- Record high
- 55°13° (2015)
- Record low
- −33°−36° (2005)
- Heating degree days
- 1308
- Cooling degree days
- 0
Kemmerer in March
Highs average 41°5° and lows 16°−9°, with 0.9 in23 mm of precipitation in a typical March.
- Record high
- 74°23° (2026)
- Record low
- −22°−30° (1998)
- Heating degree days
- 1136
- Cooling degree days
- 0
Kemmerer in April
Highs average 52°11° and lows 23°−5°, with 1.1 in28 mm of precipitation in a typical April.
- Record high
- 77°25° (2007)
- Record low
- −8°−22° (2008)
- Heating degree days
- 825
- Cooling degree days
- 0
Kemmerer in May
Highs average 63°17° and lows 30°−1°, with 1.5 in39 mm of precipitation in a typical May.
- Record high
- 89°32° (1999)
- Record low
- 8°−13° (2002)
- Heating degree days
- 580
- Cooling degree days
- 0
Kemmerer in June
Highs average 74°23° and lows 35°2°, with 1.1 in27 mm of precipitation in a typical June.
- Record high
- 92°33° (2013)
- Record low
- 13°−11° (2002)
- Heating degree days
- 319
- Cooling degree days
- 3
Kemmerer in July
Highs average 83°29° and lows 42°5°, with 0.57 in14 mm of precipitation in a typical July.
- Record high
- 109°43° (1999)
- Record low
- 25°−4° (1993)
- Heating degree days
- 110
- Cooling degree days
- 36
Kemmerer in August
Highs average 82°28° and lows 41°5°, with 0.91 in23 mm of precipitation in a typical August.
- Record high
- 96°36° (2000)
- Record low
- 21°−6° (2005)
- Heating degree days
- 138
- Cooling degree days
- 20
Kemmerer in September
Highs average 72°22° and lows 32°0°, with 1.1 in28 mm of precipitation in a typical September.
- Record high
- 94°34° (2022)
- Record low
- 10°−12° (1996)
- Heating degree days
- 392
- Cooling degree days
- 1
Kemmerer in OctoberThis month
Highs average 57°14° and lows 23°−5°, with 1.3 in32 mm of precipitation in a typical October.
- Record high
- 81°27° (2010)
- Record low
- −24°−31° (2019)
- Heating degree days
- 770
- Cooling degree days
- 0
Kemmerer in November
Highs average 40°5° and lows 14°−10°, with 0.89 in23 mm of precipitation in a typical November.
- Record high
- 67°19° (1999)
- Record low
- −23°−31° (1993)
- Heating degree days
- 1136
- Cooling degree days
- 0
Kemmerer in December
Highs average 29°−2° and lows 5°−15°, with 0.86 in22 mm of precipitation in a typical December.
- Record high
- 57°14° (1995)
- Record low
- −45°−43° (1990)
- Heating degree days
- 1491
- Cooling degree days
- 0