Marblemount weather by month
What a typical year looks like in Marblemount, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Concrete Ppl Fish Station, 22 km from Marblemount; records cover 1905–2026.
The year at a glance
- Precipitation a year
- 71.2 in1809 mm
- Snow a year
- 16 in41 cm
- Last spring freeze
- Mar 29
- First fall freeze
- Nov 10
- Heating degree days
- 5,324
- Cooling degree days
- 136
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 21°−6° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Marblemount in January
Highs average 43°6° and lows 33°1°, with 10.4 in264 mm of precipitation and 5 in13 cm of snow in a typical January.
- Record high
- 65°18° (1940)
- Record low
- 0°−18° (1950)
- Heating degree days
- 835
- Cooling degree days
- 0
Marblemount in February
Highs average 47°8° and lows 34°1°, with 6.7 in171 mm of precipitation and 1.5 in3.8 cm of snow in a typical February.
- Record high
- 74°23° (1938)
- Record low
- 1°−17° (1950)
- Heating degree days
- 693
- Cooling degree days
- 0
Marblemount in March
Highs average 52°11° and lows 36°2°, with 7.6 in194 mm of precipitation and 1.3 in3.3 cm of snow in a typical March.
- Record high
- 82°28° (1915)
- Record low
- 11°−12° (1955)
- Heating degree days
- 654
- Cooling degree days
- 0
Marblemount in April
Highs average 58°15° and lows 40°4°, with 5.1 in129 mm of precipitation in a typical April.
- Record high
- 93°34° (1910)
- Record low
- 25°−4° (1935)
- Heating degree days
- 477
- Cooling degree days
- 0
Marblemount in May
Highs average 65°19° and lows 45°7°, with 3.5 in88 mm of precipitation in a typical May.
- Record high
- 96°36° (1958)
- Record low
- 29°−2° (1915)
- Heating degree days
- 305
- Cooling degree days
- 4
Marblemount in June
Highs average 69°21° and lows 50°10°, with 2.7 in68 mm of precipitation in a typical June.
- Record high
- 106°41° (1925)
- Record low
- 35°2° (1915)
- Heating degree days
- 180
- Cooling degree days
- 12
Marblemount in July
Highs average 76°24° and lows 53°12°, with 1.2 in31 mm of precipitation in a typical July.
- Record high
- 102°39° (1951)
- Record low
- 38°3° (1953)
- Heating degree days
- 70
- Cooling degree days
- 46
Marblemount in August
Highs average 77°25° and lows 54°12°, with 1.5 in39 mm of precipitation in a typical August.
- Record high
- 102°39° (1915)
- Record low
- 31°−1° (1910)
- Heating degree days
- 52
- Cooling degree days
- 57
Marblemount in September
Highs average 71°22° and lows 50°10°, with 3.3 in84 mm of precipitation in a typical September.
- Record high
- 102°39° (1944)
- Record low
- 30°−1° (1926)
- Heating degree days
- 154
- Cooling degree days
- 17
Marblemount in OctoberThis month
Highs average 59°15° and lows 44°7°, with 7.3 in186 mm of precipitation in a typical October.
- Record high
- 86°30° (1932)
- Record low
- 21°−6° (1906)
- Heating degree days
- 414
- Cooling degree days
- 0
Marblemount in November
Highs average 49°9° and lows 38°3°, with 11.5 in292 mm of precipitation and 0.9 in2.3 cm of snow in a typical November.
- Record high
- 77°25° (1949)
- Record low
- 7°−14° (1955)
- Heating degree days
- 652
- Cooling degree days
- 0
Marblemount in December
Highs average 42°6° and lows 34°1°, with 10.4 in265 mm of precipitation and 8 in19 cm of snow in a typical December.
- Record high
- 63°17° (1941)
- Record low
- 0°−18° (1968)
- Heating degree days
- 838
- Cooling degree days
- 0