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Boardman weather by month

What a typical year looks like in Boardman, Oregon: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Boardman, 1 km from Boardman; records cover 1971–2026.

Today’s Boardman forecast

The year at a glance

January: typical high 42°F, low 28.7°F, precipitation 1.28 in. February: typical high 48.3°F, low 29.5°F, precipitation 0.92 in. March: typical high 57.6°F, low 33.8°F, precipitation 0.7 in. April: typical high 66.1°F, low 39.8°F, precipitation 0.64 in. May: typical high 75.2°F, low 47.8°F, precipitation 0.8 in. June: typical high 81.7°F, low 54.6°F, precipitation 0.55 in. July: typical high 91.3°F, low 60°F, precipitation 0.14 in. August: typical high 90°F, low 58.7°F, precipitation 0.18 in. September: typical high 80.6°F, low 49.7°F, precipitation 0.25 in. October: typical high 65.8°F, low 40.3°F, precipitation 0.74 in. November: typical high 51°F, low 33.2°F, precipitation 0.98 in. December: typical high 41.6°F, low 29.1°F, precipitation 1.38 in.−20°−29°0°−18°20°−7°40°4°60°16°80°27°100°38°120°49°42°6°29°−2°Jan48°9°30°−1°Feb58°14°34°1°Mar66°19°40°4°Apr75°24°48°9°May82°28°55°13°Jun91°33°60°16°Jul90°32°59°15°Aug81°27°50°10°Sep66°19°40°5°Oct51°11°33°1°Nov42°5°29°−2°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
8.6 in217 mm
Snow a year
4 in9 cm
Last spring freeze
Apr 17
First fall freeze
Oct 16
Heating degree days
4,852
Cooling degree days
877

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 10°−12° (heating, 99%) and 101°38° (cooling, 1%).

Month by month

Boardman in January

Highs average 42°6° and lows 29°−2°, with 1.3 in33 mm of precipitation and 1.2 in3 cm of snow in a typical January.

Record high
70°21° (1990)
Record low
−13°−25° (2004)
Heating degree days
919
Cooling degree days
0

Boardman in February

Highs average 48°9° and lows 30°−1°, with 0.92 in23 mm of precipitation and 1.4 in3.6 cm of snow in a typical February.

Record high
74°23° (1986)
Record low
−13°−25° (1989)
Heating degree days
731
Cooling degree days
0

Boardman in March

Highs average 58°14° and lows 34°1°, with 0.7 in18 mm of precipitation and 0.2 in0.5 cm of snow in a typical March.

Record high
81°27° (2025)
Record low
2°−17° (2019)
Heating degree days
598
Cooling degree days
0

Boardman in April

Highs average 66°19° and lows 40°4°, with 0.64 in16 mm of precipitation in a typical April.

Record high
92°33° (1977)
Record low
21°−6° (2008)
Heating degree days
363
Cooling degree days
2

Boardman in May

Highs average 75°24° and lows 48°9°, with 0.8 in20 mm of precipitation in a typical May.

Record high
102°39° (1983)
Record low
29°−2° (2013)
Heating degree days
149
Cooling degree days
41

Boardman in June

Highs average 82°28° and lows 55°13°, with 0.55 in14 mm of precipitation in a typical June.

Record high
113°45° (2021)
Record low
35°2° (1984)
Heating degree days
34
Cooling degree days
129

Boardman in July

Highs average 91°33° and lows 60°16°, with 0.14 in3.6 mm of precipitation in a typical July.

Record high
115°46° (2024)
Record low
37°3° (1995)
Heating degree days
3
Cooling degree days
333

Boardman in August

Highs average 90°32° and lows 59°15°, with 0.18 in4.6 mm of precipitation in a typical August.

Record high
107°42° (1997)
Record low
39°4° (1993)
Heating degree days
4
Cooling degree days
294

Boardman in September

Highs average 81°27° and lows 50°10°, with 0.25 in6.4 mm of precipitation in a typical September.

Record high
100°38° (2003)
Record low
25°−4° (1983)
Heating degree days
72
Cooling degree days
76

Boardman in OctoberThis month

Highs average 66°19° and lows 40°5°, with 0.74 in19 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.

Record high
90°32° (2014)
Record low
11°−12° (2002)
Heating degree days
373
Cooling degree days
2

Boardman in November

Highs average 51°11° and lows 33°1°, with 0.98 in25 mm of precipitation in a typical November.

Record high
76°24° (1999)
Record low
−9°−23° (1985)
Heating degree days
687
Cooling degree days
0

Boardman in December

Highs average 42°5° and lows 29°−2°, with 1.4 in35 mm of precipitation and 0.8 in2 cm of snow in a typical December.

Record high
73°23° (2021)
Record low
−15°−26° (1983)
Heating degree days
919
Cooling degree days
0