Lostine weather by month
What a typical year looks like in Lostine, Oregon: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Wallowa, 13 km from Lostine; records cover 1903–2026.
The year at a glance
- Precipitation a year
- 18 in457 mm
- Snow a year
- 48 in122 cm
- Last spring freeze
- May 25
- First fall freeze
- Sep 8
- Heating degree days
- 6,846
- Cooling degree days
- 244
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Lostine in January
Highs average 36°2° and lows 20°−7°, with 1.8 in44 mm of precipitation and 12 in31 cm of snow in a typical January.
- Record high
- 64°18° (1971)
- Record low
- −34°−37° (1937)
- Heating degree days
- 1147
- Cooling degree days
- 0
Lostine in February
Highs average 43°6° and lows 22°−5°, with 1.6 in41 mm of precipitation and 10 in26 cm of snow in a typical February.
- Record high
- 67°19° (1995)
- Record low
- −33°−36° (1933)
- Heating degree days
- 907
- Cooling degree days
- 0
Lostine in March
Highs average 52°11° and lows 27°−3°, with 1.6 in40 mm of precipitation and 3 in8 cm of snow in a typical March.
- Record high
- 79°26° (1978)
- Record low
- −14°−26° (1917)
- Heating degree days
- 780
- Cooling degree days
- 0
Lostine in April
Highs average 60°16° and lows 32°0°, with 1.6 in42 mm of precipitation and 1 in2.5 cm of snow in a typical April.
- Record high
- 90°32° (1977)
- Record low
- 5°−15° (1936)
- Heating degree days
- 578
- Cooling degree days
- 0
Lostine in May
Highs average 69°21° and lows 38°3°, with 2.2 in55 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 98°37° (2008)
- Record low
- 16°−9° (1954)
- Heating degree days
- 354
- Cooling degree days
- 2
Lostine in June
Highs average 77°25° and lows 43°6°, with 1.6 in40 mm of precipitation in a typical June.
- Record high
- 109°43° (2021)
- Record low
- 26°−3° (1919)
- Heating degree days
- 175
- Cooling degree days
- 22
Lostine in July
Highs average 88°31° and lows 47°8°, with 0.51 in13 mm of precipitation in a typical July.
- Record high
- 108°42° (1931)
- Record low
- 22°−6° (1939)
- Heating degree days
- 41
- Cooling degree days
- 110
Lostine in August
Highs average 88°31° and lows 45°7°, with 0.78 in20 mm of precipitation in a typical August.
- Record high
- 110°43° (1939)
- Record low
- 22°−6° (1939)
- Heating degree days
- 48
- Cooling degree days
- 93
Lostine in September
Highs average 79°26° and lows 38°4°, with 0.74 in19 mm of precipitation in a typical September.
- Record high
- 103°39° (2017)
- Record low
- 16°−9° (1926)
- Heating degree days
- 208
- Cooling degree days
- 17
Lostine in OctoberThis month
Highs average 63°17° and lows 31°0°, with 1.5 in39 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 92°33° (2010)
- Record low
- 5°−15° (2006)
- Heating degree days
- 560
- Cooling degree days
- 0
Lostine in November
Highs average 46°8° and lows 25°−4°, with 2 in50 mm of precipitation and 6 in15 cm of snow in a typical November.
- Record high
- 74°23° (1999)
- Record low
- −22°−30° (1985)
- Heating degree days
- 886
- Cooling degree days
- 0
Lostine in December
Highs average 36°2° and lows 19°−7°, with 2.1 in54 mm of precipitation and 15 in38 cm of snow in a typical December.
- Record high
- 67°19° (1929)
- Record low
- −38°−39° (1919)
- Heating degree days
- 1162
- Cooling degree days
- 0