Metaline Falls weather by month
What a typical year looks like in Metaline Falls, Washington: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Boundary Dam, 15 km from Metaline Falls; records cover 1965–2026.
The year at a glance
- Precipitation a year
- 28.2 in716 mm
- Snow a year
- 55 in139 cm
- Last spring freeze
- May 8
- First fall freeze
- Sep 27
- Heating degree days
- 7,185
- Cooling degree days
- 288
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −1°−18° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Metaline Falls in January
Highs average 33°0° and lows 21°−6°, with 3.1 in79 mm of precipitation and 19 in47 cm of snow in a typical January.
- Record high
- 50°10° (2001)
- Record low
- −20°−29° (1979)
- Heating degree days
- 1186
- Cooling degree days
- 0
Metaline Falls in February
Highs average 38°3° and lows 22°−6°, with 2 in50 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 58°14° (1987)
- Record low
- −15°−26° (2014)
- Heating degree days
- 983
- Cooling degree days
- 0
Metaline Falls in March
Highs average 48°9° and lows 27°−3°, with 2.4 in60 mm of precipitation and 3 in9 cm of snow in a typical March.
- Record high
- 73°23° (2004)
- Record low
- −5°−21° (2019)
- Heating degree days
- 863
- Cooling degree days
- 0
Metaline Falls in April
Highs average 58°14° and lows 33°0°, with 2.2 in56 mm of precipitation and 0.1 in0.3 cm of snow in a typical April.
- Record high
- 90°32° (1977)
- Record low
- 14°−10° (2008)
- Heating degree days
- 591
- Cooling degree days
- 0
Metaline Falls in May
Highs average 67°20° and lows 41°5°, with 2.6 in66 mm of precipitation in a typical May.
- Record high
- 96°36° (1986)
- Record low
- 22°−6° (2008)
- Heating degree days
- 344
- Cooling degree days
- 4
Metaline Falls in June
Highs average 72°22° and lows 48°9°, with 3.2 in81 mm of precipitation in a typical June.
- Record high
- 111°44° (2021)
- Record low
- 30°−1° (2008)
- Heating degree days
- 173
- Cooling degree days
- 26
Metaline Falls in July
Highs average 84°29° and lows 52°11°, with 1.4 in36 mm of precipitation in a typical July.
- Record high
- 110°43° (2021)
- Record low
- 34°1° (2008)
- Heating degree days
- 43
- Cooling degree days
- 129
Metaline Falls in August
Highs average 85°29° and lows 50°10°, with 0.81 in21 mm of precipitation in a typical August.
- Record high
- 104°40° (2020)
- Record low
- 32°0° (1984)
- Heating degree days
- 47
- Cooling degree days
- 115
Metaline Falls in September
Highs average 73°23° and lows 43°6°, with 1.3 in34 mm of precipitation in a typical September.
- Record high
- 100°38° (2025)
- Record low
- 22°−6° (1984)
- Heating degree days
- 232
- Cooling degree days
- 14
Metaline Falls in OctoberThis month
Highs average 56°13° and lows 35°1°, with 2.4 in61 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 80°27° (1980)
- Record low
- 9°−13° (1984)
- Heating degree days
- 615
- Cooling degree days
- 0
Metaline Falls in November
Highs average 40°5° and lows 28°−2°, with 3.2 in82 mm of precipitation and 7 in17 cm of snow in a typical November.
- Record high
- 61°16° (1975)
- Record low
- −19°−28° (1985)
- Heating degree days
- 924
- Cooling degree days
- 0
Metaline Falls in December
Highs average 32°0° and lows 21°−6°, with 3.6 in91 mm of precipitation and 18 in46 cm of snow in a typical December.
- Record high
- 53°12° (2021)
- Record low
- −28°−33° (1968)
- Heating degree days
- 1184
- Cooling degree days
- 0