30-year climate normals

Deschutes County Climate and Weather Averages

Hottest month — July

84.1°

average daily high. The coldest month is December, averaging a low of 19.0°F.

Deschutes County gets 19.12" of precipitation a year, and 44% 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.

Month	Avg high	Avg low	Precip
January	39.8°	19.6°	2.86"
February	43.1°	21.1°	1.91"
March	49.7°	24.2°	1.54"
April	56.6°	24.6°	1.16"
May	64.7°	32.9°	1.71"
June	72.0°	37.2°	1.09"
July	84.1°	41.0°	0.52"
August	83.1°	40.1°	0.55"
September	75.8°	34.0°	0.75"
October	61.9°	27.8°	1.44"
November	46.3°	24.0°	2.43"
December	37.5°	19.0°	3.16"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 44% falling in the wettest three months (Nov, Dec, Jan).

January 2.86"

February 1.91"

March 1.54"

April 1.16"

May 1.71"

June 1.09"

July 0.52"

August 0.55"

September 0.75"

October 1.44"

November 2.43"

December 3.16"

Annual total 19.12"

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 85

Heating degree days How much heating the climate demands 7,661

Approximate annual cooling cost At 16.27¢/kWh, Oregon average $14

Approximate annual electric heating cost Lower where heating is gas rather than electric $436

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 Deschutes County, where electricity is one line of eight.

Common questions

What is the weather like in Deschutes County?

Deschutes County averages a high of 84.1°F in July and a low of 19.0°F in December. Annual precipitation is 19.12 inches, with essentially no snow.

When is the rainy season in Deschutes County?

The wettest stretch is Nov, Dec, Jan, which accounts for 44% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Deschutes County?

The average daily high in July, the hottest month, is 84.1°F. That drives 85 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Deschutes County?

Effectively no. Measurable snowfall is rare in Deschutes County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SUNRIVER, OR US (USC00358246), 9.4 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.