Roosevelt weather by month
What a typical year looks like in Roosevelt, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Arlington, 3 km from Roosevelt; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 9.3 in236 mm
- Snow a year
- 5 in13 cm
- Last spring freeze
- Apr 4
- First fall freeze
- Oct 20
- Heating degree days
- 4,819
- Cooling degree days
- 969
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 13°−11° (heating, 99%) and 102°39° (cooling, 1%).
Month by month
Roosevelt in January
Highs average 41°5° and lows 30°−1°, with 1.5 in37 mm of precipitation and 2 in5.1 cm of snow in a typical January.
- Record high
- 66°19° (1902)
- Record low
- −22°−30° (1957)
- Heating degree days
- 922
- Cooling degree days
- 0
Roosevelt in February
Highs average 47°8° and lows 31°−1°, with 0.98 in25 mm of precipitation and 1.2 in3 cm of snow in a typical February.
- Record high
- 74°23° (1932)
- Record low
- −21°−29° (1950)
- Heating degree days
- 735
- Cooling degree days
- 0
Roosevelt in March
Highs average 56°13° and lows 36°2°, with 0.83 in21 mm of precipitation and 0.2 in0.5 cm of snow in a typical March.
- Record high
- 81°27° (1930)
- Record low
- 7°−14° (2019)
- Heating degree days
- 600
- Cooling degree days
- 0
Roosevelt in April
Highs average 64°18° and lows 42°6°, with 0.61 in15 mm of precipitation in a typical April.
- Record high
- 97°36° (1926)
- Record low
- 19°−7° (1900)
- Heating degree days
- 367
- Cooling degree days
- 2
Roosevelt in May
Highs average 73°23° and lows 50°10°, with 0.75 in19 mm of precipitation in a typical May.
- Record high
- 107°42° (1986)
- Record low
- 26°−3° (1954)
- Heating degree days
- 149
- Cooling degree days
- 45
Roosevelt in June
Highs average 80°27° and lows 57°14°, with 0.48 in12 mm of precipitation in a typical June.
- Record high
- 117°47° (2021)
- Record low
- 37°3° (1898)
- Heating degree days
- 37
- Cooling degree days
- 132
Roosevelt in July
Highs average 90°32° and lows 63°17°, with 0.1 in2.5 mm of precipitation in a typical July.
- Record high
- 114°46° (1941)
- Record low
- 42°6° (1899)
- Heating degree days
- 2
- Cooling degree days
- 354
Roosevelt in August
Highs average 89°32° and lows 62°17°, with 0.15 in3.8 mm of precipitation in a typical August.
- Record high
- 115°46° (1961)
- Record low
- 40°4° (1974)
- Heating degree days
- 3
- Cooling degree days
- 327
Roosevelt in September
Highs average 80°27° and lows 53°12°, with 0.33 in8.4 mm of precipitation in a typical September.
- Record high
- 104°40° (1950)
- Record low
- 26°−3° (1926)
- Heating degree days
- 58
- Cooling degree days
- 104
Roosevelt in OctoberThis month
Highs average 66°19° and lows 42°6°, with 0.81 in21 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 90°32° (1958)
- Record low
- 11°−12° (2002)
- Heating degree days
- 354
- Cooling degree days
- 5
Roosevelt in November
Highs average 50°10° and lows 34°1°, with 1.1 in29 mm of precipitation and 0.4 in1 cm of snow in a typical November.
- Record high
- 84°29° (1894)
- Record low
- −5°−21° (1955)
- Heating degree days
- 678
- Cooling degree days
- 0
Roosevelt in December
Highs average 41°5° and lows 30°−1°, with 1.7 in42 mm of precipitation and 1.4 in3.6 cm of snow in a typical December.
- Record high
- 74°23° (1933)
- Record low
- −12°−24° (1924)
- Heating degree days
- 914
- Cooling degree days
- 0