Grants Pass weather by month
What a typical year looks like in Grants Pass, Oregon: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Sexton Summit, 19 km from Grants Pass; records cover 1948–2026.
The year at a glance
- Precipitation a year
- 40.7 in1033 mm
- Snow a year
- Rare
- Last spring freeze
- May 10
- First fall freeze
- Oct 27
- Heating degree days
- 6,114
- Cooling degree days
- 276
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 22°−6° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Grants Pass in January
Highs average 43°6° and lows 33°1°, with 6.4 in164 mm of precipitation in a typical January.
- Record high
- 66°19° (1985)
- Record low
- −2°−19° (1962)
- Heating degree days
- 831
- Cooling degree days
- 0
Grants Pass in February
Highs average 44°7° and lows 33°0°, with 5.2 in132 mm of precipitation in a typical February.
- Record high
- 67°19° (1977)
- Record low
- 3°−16° (1989)
- Heating degree days
- 750
- Cooling degree days
- 0
Grants Pass in March
Highs average 46°8° and lows 33°1°, with 4.9 in124 mm of precipitation in a typical March.
- Record high
- 83°28° (2025)
- Record low
- 15°−9° (1971)
- Heating degree days
- 784
- Cooling degree days
- 0
Grants Pass in April
Highs average 52°11° and lows 35°2°, with 3 in76 mm of precipitation in a typical April.
- Record high
- 84°29° (2025)
- Record low
- 19°−7° (1972)
- Heating degree days
- 647
- Cooling degree days
- 1
Grants Pass in May
Highs average 61°16° and lows 41°5°, with 2.2 in56 mm of precipitation in a typical May.
- Record high
- 91°33° (1986)
- Record low
- 22°−6° (1965)
- Heating degree days
- 443
- Cooling degree days
- 11
Grants Pass in June
Highs average 68°20° and lows 46°8°, with 0.94 in24 mm of precipitation in a typical June.
- Record high
- 100°38° (2021)
- Record low
- 27°−3° (1966)
- Heating degree days
- 271
- Cooling degree days
- 21
Grants Pass in July
Highs average 77°25° and lows 53°12°, with 0.29 in7.4 mm of precipitation in a typical July.
- Record high
- 96°36° (2003)
- Record low
- 36°2° (1955)
- Heating degree days
- 88
- Cooling degree days
- 85
Grants Pass in August
Highs average 77°25° and lows 54°12°, with 0.28 in7.1 mm of precipitation in a typical August.
- Record high
- 98°37° (2023)
- Record low
- 38°3° (1956)
- Heating degree days
- 83
- Cooling degree days
- 92
Grants Pass in September
Highs average 70°21° and lows 51°10°, with 0.84 in21 mm of precipitation in a typical September.
- Record high
- 97°36° (1955)
- Record low
- 30°−1° (1950)
- Heating degree days
- 189
- Cooling degree days
- 55
Grants Pass in OctoberThis month
Highs average 58°15° and lows 43°6°, with 2.9 in73 mm of precipitation in a typical October.
- Record high
- 88°31° (1991)
- Record low
- 20°−7° (1971)
- Heating degree days
- 449
- Cooling degree days
- 11
Grants Pass in November
Highs average 47°8° and lows 36°2°, with 5.6 in142 mm of precipitation in a typical November.
- Record high
- 77°25° (1966)
- Record low
- 11°−12° (1955)
- Heating degree days
- 705
- Cooling degree days
- 0
Grants Pass in December
Highs average 41°5° and lows 32°0°, with 8.1 in207 mm of precipitation in a typical December.
- Record high
- 66°19° (1980)
- Record low
- −4°−20° (1990)
- Heating degree days
- 874
- Cooling degree days
- 0