Marcus weather by month
What a typical year looks like in Marcus, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Colville 5 NE, 21 km from Marcus; records cover 1899–2026.
The year at a glance
- Precipitation a year
- 19.9 in505 mm
- Snow a year
- 43 in110 cm
- Last spring freeze
- May 2
- First fall freeze
- Oct 1
- Heating degree days
- 6,307
- Cooling degree days
- 456
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 2°−17° (heating, 99%) and 101°38° (cooling, 1%).
Month by month
Marcus in January
Highs average 34°1° and lows 23°−5°, with 2.2 in56 mm of precipitation and 15 in37 cm of snow in a typical January.
- Record high
- 57°14° (2003)
- Record low
- −29°−34° (1909)
- Heating degree days
- 1124
- Cooling degree days
- 0
Marcus in February
Highs average 42°5° and lows 24°−5°, with 1.5 in37 mm of precipitation and 5 in14 cm of snow in a typical February.
- Record high
- 63°17° (1995)
- Record low
- −29°−34° (1933)
- Heating degree days
- 899
- Cooling degree days
- 0
Marcus in March
Highs average 53°12° and lows 30°−1°, with 1.9 in48 mm of precipitation and 2.7 in6.9 cm of snow in a typical March.
- Record high
- 76°24° (1910)
- Record low
- −15°−26° (2019)
- Heating degree days
- 739
- Cooling degree days
- 0
Marcus in April
Highs average 63°17° and lows 35°2°, with 1.5 in39 mm of precipitation and 0.2 in0.5 cm of snow in a typical April.
- Record high
- 92°33° (1910)
- Record low
- 12°−11° (1936)
- Heating degree days
- 483
- Cooling degree days
- 0
Marcus in May
Highs average 72°22° and lows 43°6°, with 1.9 in49 mm of precipitation in a typical May.
- Record high
- 96°36° (1936)
- Record low
- 24°−4° (1906)
- Heating degree days
- 243
- Cooling degree days
- 13
Marcus in June
Highs average 78°26° and lows 49°9°, with 2.1 in54 mm of precipitation in a typical June.
- Record high
- 112°44° (2021)
- Record low
- 28°−2° (1918)
- Heating degree days
- 97
- Cooling degree days
- 50
Marcus in July
Highs average 88°31° and lows 53°11°, with 0.83 in21 mm of precipitation in a typical July.
- Record high
- 109°43° (1994)
- Record low
- 31°−1° (1917)
- Heating degree days
- 20
- Cooling degree days
- 190
Marcus in August
Highs average 89°31° and lows 51°11°, with 0.68 in17 mm of precipitation in a typical August.
- Record high
- 106°41° (1994)
- Record low
- 29°−2° (1901)
- Heating degree days
- 21
- Cooling degree days
- 168
Marcus in September
Highs average 78°26° and lows 44°7°, with 0.72 in18 mm of precipitation in a typical September.
- Record high
- 104°40° (2025)
- Record low
- 20°−7° (1900)
- Heating degree days
- 155
- Cooling degree days
- 35
Marcus in OctoberThis month
Highs average 61°16° and lows 35°1°, with 1.5 in38 mm of precipitation in a typical October.
- Record high
- 91°33° (2003)
- Record low
- 4°−16° (1935)
- Heating degree days
- 541
- Cooling degree days
- 0
Marcus in November
Highs average 44°6° and lows 29°−2°, with 2.2 in56 mm of precipitation and 6 in14 cm of snow in a typical November.
- Record high
- 75°24° (1899)
- Record low
- −11°−24° (1900)
- Heating degree days
- 864
- Cooling degree days
- 0
Marcus in December
Highs average 34°1° and lows 24°−5°, with 2.8 in71 mm of precipitation and 15 in38 cm of snow in a typical December.
- Record high
- 60°16° (2025)
- Record low
- −23°−31° (1922)
- Heating degree days
- 1121
- Cooling degree days
- 0