Idanha weather by month
What a typical year looks like in Idanha, Oregon: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Marion Forks Fish Hatchery, 15 km from Idanha; records cover 1948–2026.
The year at a glance
- Precipitation a year
- 74.1 in1882 mm
- Snow a year
- 85 in216 cm
- Last spring freeze
- May 14
- First fall freeze
- Sep 27
- Heating degree days
- 6,648
- Cooling degree days
- 142
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 14°−10° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Idanha in January
Highs average 40°4° and lows 27°−3°, with 11.3 in286 mm of precipitation and 24 in62 cm of snow in a typical January.
- Record high
- 59°15° (1961)
- Record low
- −6°−21° (1949)
- Heating degree days
- 980
- Cooling degree days
- 0
Idanha in February
Highs average 44°7° and lows 28°−2°, with 7.8 in198 mm of precipitation and 18 in44 cm of snow in a typical February.
- Record high
- 69°21° (1977)
- Record low
- −5°−21° (1950)
- Heating degree days
- 819
- Cooling degree days
- 0
Idanha in March
Highs average 49°10° and lows 29°−1°, with 8.6 in218 mm of precipitation and 13 in33 cm of snow in a typical March.
- Record high
- 77°25° (1994)
- Record low
- 6°−14° (1969)
- Heating degree days
- 795
- Cooling degree days
- 0
Idanha in April
Highs average 56°13° and lows 33°0°, with 6.3 in161 mm of precipitation and 2.9 in7.4 cm of snow in a typical April.
- Record high
- 89°32° (1987)
- Record low
- 15°−9° (2008)
- Heating degree days
- 630
- Cooling degree days
- 0
Idanha in May
Highs average 64°18° and lows 38°3°, with 4.4 in112 mm of precipitation and 0.2 in0.5 cm of snow in a typical May.
- Record high
- 101°38° (1986)
- Record low
- 23°−5° (1954)
- Heating degree days
- 425
- Cooling degree days
- 2
Idanha in June
Highs average 71°22° and lows 43°6°, with 2.9 in74 mm of precipitation in a typical June.
- Record high
- 108°42° (2021)
- Record low
- 29°−2° (1976)
- Heating degree days
- 251
- Cooling degree days
- 14
Idanha in July
Highs average 82°28° and lows 47°8°, with 0.68 in17 mm of precipitation in a typical July.
- Record high
- 103°39° (2022)
- Record low
- 30°−1° (2002)
- Heating degree days
- 83
- Cooling degree days
- 63
Idanha in August
Highs average 82°28° and lows 46°8°, with 0.66 in17 mm of precipitation in a typical August.
- Record high
- 105°41° (1972)
- Record low
- 32°0° (1948)
- Heating degree days
- 90
- Cooling degree days
- 52
Idanha in September
Highs average 74°24° and lows 41°5°, with 2.2 in57 mm of precipitation in a typical September.
- Record high
- 99°37° (1973)
- Record low
- 26°−3° (1965)
- Heating degree days
- 234
- Cooling degree days
- 11
Idanha in OctoberThis month
Highs average 60°15° and lows 35°2°, with 6.1 in154 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 92°33° (1987)
- Record low
- 17°−8° (1971)
- Heating degree days
- 542
- Cooling degree days
- 0
Idanha in November
Highs average 46°8° and lows 31°−1°, with 10.8 in273 mm of precipitation and 8 in19 cm of snow in a typical November.
- Record high
- 74°23° (1962)
- Record low
- 1°−17° (1955)
- Heating degree days
- 802
- Cooling degree days
- 0
Idanha in December
Highs average 38°3° and lows 27°−3°, with 12.4 in316 mm of precipitation and 20 in50 cm of snow in a typical December.
- Record high
- 56°13° (1957)
- Record low
- 0°−18° (1968)
- Heating degree days
- 997
- Cooling degree days
- 0