Kooskia weather by month
What a typical year looks like in Kooskia, Idaho: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Kamiah, 11 km from Kooskia; records cover 1979–2026.
The year at a glance
- Precipitation a year
- 24 in610 mm
- Snow a year
- 11 in29 cm
- Last spring freeze
- May 4
- First fall freeze
- Oct 8
- Heating degree days
- 5,660
- Cooling degree days
- 548
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 10°−12° (heating, 99%) and 103°39° (cooling, 1%).
Month by month
Kooskia in January
Highs average 38°3° and lows 26°−3°, with 2.1 in53 mm of precipitation and 2.7 in6.9 cm of snow in a typical January.
- Record high
- 59°15° (1999)
- Record low
- −5°−21° (2004)
- Heating degree days
- 1024
- Cooling degree days
- 0
Kooskia in February
Highs average 46°8° and lows 30°−1°, with 1.9 in49 mm of precipitation and 2 in5.1 cm of snow in a typical February.
- Record high
- 66°19° (2006)
- Record low
- −1°−18° (2014)
- Heating degree days
- 750
- Cooling degree days
- 0
Kooskia in March
Highs average 55°13° and lows 33°0°, with 2.7 in68 mm of precipitation and 0.5 in1.3 cm of snow in a typical March.
- Record high
- 81°27° (2004)
- Record low
- 8°−13° (2019)
- Heating degree days
- 656
- Cooling degree days
- 0
Kooskia in April
Highs average 63°17° and lows 37°3°, with 2.8 in71 mm of precipitation in a typical April.
- Record high
- 89°32° (2018)
- Record low
- 19°−7° (2006)
- Heating degree days
- 446
- Cooling degree days
- 1
Kooskia in May
Highs average 73°23° and lows 44°7°, with 2.8 in71 mm of precipitation in a typical May.
- Record high
- 98°37° (2006)
- Record low
- 27°−3° (2008)
- Heating degree days
- 215
- Cooling degree days
- 15
Kooskia in June
Highs average 79°26° and lows 50°10°, with 2.3 in58 mm of precipitation in a typical June.
- Record high
- 110°43° (2021)
- Record low
- 28°−2° (2005)
- Heating degree days
- 80
- Cooling degree days
- 62
Kooskia in July
Highs average 90°32° and lows 52°11°, with 0.87 in22 mm of precipitation in a typical July.
- Record high
- 109°43° (2021)
- Record low
- 31°−1° (2021)
- Heating degree days
- 12
- Cooling degree days
- 209
Kooskia in August
Highs average 91°33° and lows 52°11°, with 0.73 in19 mm of precipitation in a typical August.
- Record high
- 111°44° (2023)
- Record low
- 20°−7° (2021)
- Heating degree days
- 10
- Cooling degree days
- 208
Kooskia in September
Highs average 80°27° and lows 46°8°, with 1.2 in29 mm of precipitation in a typical September.
- Record high
- 107°42° (2025)
- Record low
- 24°−4° (2021)
- Heating degree days
- 123
- Cooling degree days
- 52
Kooskia in OctoberThis month
Highs average 62°17° and lows 38°3°, with 1.9 in48 mm of precipitation in a typical October.
- Record high
- 89°32° (2003)
- Record low
- 11°−12° (2019)
- Heating degree days
- 477
- Cooling degree days
- 1
Kooskia in November
Highs average 45°7° and lows 31°−1°, with 2.8 in72 mm of precipitation and 0.4 in1 cm of snow in a typical November.
- Record high
- 72°22° (1999)
- Record low
- 4°−16° (2010)
- Heating degree days
- 813
- Cooling degree days
- 0
Kooskia in December
Highs average 36°2° and lows 26°−3°, with 2 in50 mm of precipitation and 6 in14 cm of snow in a typical December.
- Record high
- 61°16° (2015)
- Record low
- −3°−19° (2009)
- Heating degree days
- 1054
- Cooling degree days
- 0