ClimateSeeker

Mill Plain, Washington Climate

United States

Pop. 7,874 Elev. 89 m / 292 ft TZ: America/Los_Angeles (UTC-7) ·

Mill Plain has mild summers with average highs of 84°F (29°C) in July, and cool winters averaging 34°F (1°C) in January. Rain falls on about 87 days per year (70.5 in / 1790 mm total), with snow on 3 days and 17 in (419 mm) of annual accumulation. The city averages 102 sunny days per year and around 41 thunderstorm days. Nearby lake water reaches 68°F (20°C) in summer.

Temperature 84°F (29°C) high 34°F (1°C) low
Feels like 87°F (30°C) high 34°F (1°C) low
Rain 87 days 70.5 in (1790 mm) /yr
Snow 3 days 16.5 in (419 mm) /yr
Sky 102 sunny 41 stormy
Wind 2.7 mph (1.2 m/s) avg

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Monthly Climate Chart
↓ Monthly data table
Best months to visit: Apr, May, Jun, Jul, Aug, Sep, Oct

Sky & Air by Month

Cloud cover (%)
52
Jan
74
Feb
86
Mar
57
Apr
62
May
45
Jun
30
Jul
50
Aug
46
Sep
62
Oct
87
Nov
86
Dec
Humidity (%)
77
Jan
78
Feb
79
Mar
63
Apr
62
May
62
Jun
57
Jul
62
Aug
69
Sep
78
Oct
86
Nov
88
Dec

Weather Days by Month
↓ Weather days table

Water Temperatures
↓ Water temperatures table

Cities with Similar Climate

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Tokyo
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95°F / 25°F

Nearby Cities

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Nearby

Commercial airport 6 mi Portland International Airport (PDX)
Ski resort 37 mi Tubing Hill
National park 9 mi Lewis and Clark State Recreation Site
Mountain peak (8,193 ft) 41 mi
Hospital 4 mi PeaceHealth Southwest Medical Center
Hiking trail 2 mi Lake to Lake Trail

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Monthly Weather Data

↑ See chart
Month Avg High Avg Low Rainfall Snowfall Sunny Days
January 47°F 9°C 34°F 1°C 4.7 in 120 mm 0.2 in6 mm 11
February 47°F 8°C 35°F 2°C 8.7 in 220 mm 13.8 in350 mm 4
March 56°F 13°C 42°F 5°C 11.3 in 286 mm 2.3 in58 mm 2
April 65°F 18°C 43°F 6°C 3.3 in 84 mm — 10
May 70°F 21°C 47°F 8°C 2.3 in 57 mm — 8
June 76°F 25°C 51°F 11°C 1.7 in 44 mm — 12
July 84°F 29°C 56°F 13°C 0.1 in 3 mm — 19
August 83°F 28°C 59°F 15°C 2.0 in 52 mm — 12
September 78°F 25°C 55°F 13°C 1.6 in 41 mm — 15
October 61°F 16°C 45°F 7°C 6.7 in 171 mm — 8
November 53°F 12°C 44°F 6°C 9.9 in 253 mm — 0
December 50°F 10°C 41°F 5°C 18.1 in 459 mm 0.2 in5 mm 1

Weather Days by Month

↑ See chart
Month Sunny Days Storm Days
January 11 2
February 4 7
March 2 8
April 10 2
May 8 1
June 12 2
July 19 0
August 12 1
September 15 1
October 8 7
November 0 4
December 1 6

Water Temperatures Data

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Month Lake Avg High
January 38°F 4°C
February 35°F 2°C
March 44°F 6°C
April 50°F 10°C
May 56°F 13°C
June 62°F 17°C
July 67°F 19°C
August 68°F 20°C
September 66°F 19°C
October 54°F 12°C
November 47°F 9°C
December 45°F 7°C