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United States › Oregon › Wallowa County › Climate Station ENTERPRISE 20 NNE, OR US Distance 8.1 mi Normals 1991–2020

30-year climate normals

Wallowa County Climate and Weather Averages

Hottest month — August

88.7°

average daily high. The coldest month is January, averaging a low of 17.5°F.

Wallowa County gets 18.96" of precipitation a year, and 32% of it falls in Nov, Dec, Jan.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

20° 40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 37.9° 17.5° 1.57"
February 44.8° 20.4° 1.54"
March 51.4° 25.5° 1.49"
April 58.8° 29.6° 1.91"
May 68.9° 36.0° 2.08"
June 76.8° 41.4° 1.92"
July 87.8° 45.3° 0.85"
August 88.7° 43.7° 0.74"
September 79.5° 36.0° 0.94"
October 62.8° 29.7° 1.34"
November 45.7° 24.2° 2.27"
December 36.3° 17.8° 2.31"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 32% falling in the wettest three months (Nov, Dec, Jan).

January 1.57"
February 1.54"
March 1.49"
April 1.91"
May 2.08"
June 1.92"
July 0.85"
August 0.74"
September 0.94"
October 1.34"
November 2.27"
December 2.31"
Annual total 18.96"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 248
Heating degree days How much heating the climate demands 7,116
Approximate annual cooling cost At 16.27¢/kWh, Oregon average $40
Approximate annual electric heating cost Lower where heating is gas rather than electric $405

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Wallowa County, where electricity is one line of eight.

Common questions

What is the weather like in Wallowa County?

Wallowa County averages a high of 88.7°F in August and a low of 17.5°F in January. Annual precipitation is 18.96 inches, with essentially no snow.

When is the rainy season in Wallowa County?

The wettest stretch is Nov, Dec, Jan, which accounts for 32% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Wallowa County?

The average daily high in August, the hottest month, is 88.7°F. That drives 248 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Wallowa County?

Effectively no. Measurable snowfall is rare in Wallowa County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station ENTERPRISE 20 NNE, OR US (USC00352678), 8.1 miles from the county centroid.
  • Heating and cooling degree days — NOAA, same station and period.
  • Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, Oregon residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.