North Plains, OR

Climate overview — based on NOAA 1991-2020 normals from PORTLAND-HILLSBORO AP, OR US.

Csb Warm-summer Mediterranean climate 8b USDA hardiness Zone 8b

Year-round temperatures (°F)

30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

North Plains has an annual average temperature of 52.5°F with about 35.9 inches of precipitation per year. The warmest month is August (average high 82.4°F), and the coldest is December (average low 33.3°F). December is typically the wettest month (6.05 in) and July the driest (0.37 in).

Annual swing
27.4°F
warmest to coldest month
Heating need
4,638
Cooling need
129

Best time to visit North Plains

Full guide →

Climate change signal

All-time records →

196 of 366 (53.6%) of North Plains's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1990s
16
2000s
109
2010s
127
2020s
114

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 47.3°F 33.6°F 40.4°F 5.27 in 19
February 51.0°F 33.5°F 42.3°F 3.97 in 16
March 55.9°F 36.5°F 46.2°F 3.70 in 18
April 60.9°F 39.2°F 50.1°F 2.57 in 16
May 68.7°F 44.7°F 56.7°F 2.02 in 12
June 73.5°F 48.6°F 61.0°F 1.31 in 9
July 82.1°F 52.2°F 67.2°F 0.37 in 3
August 82.4°F 51.8°F 67.1°F 0.48 in 4
September 76.4°F 47.5°F 62.0°F 1.38 in 8
October 63.7°F 40.9°F 52.3°F 3.37 in 15
November 52.6°F 36.5°F 44.6°F 5.44 in 19
December 46.2°F 33.3°F 39.8°F 6.05 in 20

Climate twins of North Plains

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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