McCammon weather by month
What a typical year looks like in McCammon, Idaho: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Lava Hot Springs, 15 km from McCammon; records cover 1999–2026.
The year at a glance
- Precipitation a year
- 18.3 in464 mm
- Snow a year
- Rare
- Last spring freeze
- May 20
- First fall freeze
- Sep 19
- Heating degree days
- 7,556
- Cooling degree days
- 300
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −6°−21° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
McCammon in January
Highs average 32°0° and lows 14°−10°, with 2 in51 mm of precipitation in a typical January.
- Record high
- 53°12° (2012)
- Record low
- −21°−29° (2023)
- Heating degree days
- 1304
- Cooling degree days
- 0
McCammon in February
Highs average 37°3° and lows 17°−8°, with 1.3 in34 mm of precipitation in a typical February.
- Record high
- 62°17° (2003)
- Record low
- −22°−30° (2023)
- Heating degree days
- 1068
- Cooling degree days
- 0
McCammon in March
Highs average 47°8° and lows 25°−4°, with 1.9 in49 mm of precipitation in a typical March.
- Record high
- 76°24° (2026)
- Record low
- −7°−22° (2002)
- Heating degree days
- 901
- Cooling degree days
- 0
McCammon in April
Highs average 56°13° and lows 31°0°, with 1.8 in45 mm of precipitation in a typical April.
- Record high
- 85°29° (2012)
- Record low
- 8°−13° (2008)
- Heating degree days
- 639
- Cooling degree days
- 0
McCammon in May
Highs average 66°19° and lows 39°4°, with 2.3 in58 mm of precipitation in a typical May.
- Record high
- 92°33° (2003)
- Record low
- 20°−7° (2013)
- Heating degree days
- 395
- Cooling degree days
- 3
McCammon in June
Highs average 76°25° and lows 45°7°, with 1.3 in34 mm of precipitation in a typical June.
- Record high
- 99°37° (2015)
- Record low
- 30°−1° (2001)
- Heating degree days
- 168
- Cooling degree days
- 32
McCammon in July
Highs average 87°31° and lows 51°11°, with 0.76 in19 mm of precipitation in a typical July.
- Record high
- 102°39° (2002)
- Record low
- 34°1° (2026)
- Heating degree days
- 21
- Cooling degree days
- 148
McCammon in August
Highs average 86°30° and lows 49°9°, with 1.1 in27 mm of precipitation in a typical August.
- Record high
- 100°38° (2000)
- Record low
- 29°−2° (2023)
- Heating degree days
- 37
- Cooling degree days
- 105
McCammon in September
Highs average 75°24° and lows 41°5°, with 1.4 in36 mm of precipitation in a typical September.
- Record high
- 99°37° (2018)
- Record low
- 23°−5° (1999)
- Heating degree days
- 230
- Cooling degree days
- 12
McCammon in OctoberThis month
Highs average 60°15° and lows 32°0°, with 1.4 in36 mm of precipitation in a typical October.
- Record high
- 87°31° (2010)
- Record low
- −2°−19° (2019)
- Heating degree days
- 594
- Cooling degree days
- 0
McCammon in November
Highs average 44°7° and lows 24°−5°, with 1.3 in34 mm of precipitation in a typical November.
- Record high
- 71°22° (1999)
- Record low
- −10°−23° (2010)
- Heating degree days
- 930
- Cooling degree days
- 0
McCammon in December
Highs average 33°0° and lows 15°−9°, with 1.7 in43 mm of precipitation in a typical December.
- Record high
- 57°14° (2014)
- Record low
- −15°−26° (2009)
- Heating degree days
- 1269
- Cooling degree days
- 0