Sprague River, OR climate
Sprague River has chilly winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 20°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Sprague River feels like
Winter
Spring
Summer
Fall
Sprague River weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 41° | 20° | 1.9" | 23° – 38° |
| February | 45° | 22° | 1.5" | 25° – 40° |
| March | 51° | 25° | 1.5" | 31° – 45° |
| April | 57° | 28° | 1.2" | 37° – 49° |
| May | 66° | 35° | 1.2" | 43° – 58° |
| June | 75° | 40° | 0.7" | 52° – 66° |
| July | 85° | 45° | 0.3" | 55° – 70° |
| August | 85° | 43° | 0.3" | 59° – 69° |
| September | 77° | 37° | 0.5" | 52° – 62° |
| October | 63° | 29° | 0.8" | 42° – 53° |
| November | 48° | 24° | 1.6" | 26° – 41° |
| December | 39° | 19° | 2.3" | 24° – 33° |
| Year | 61° | 31° | 13.8" |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Sprague River
Sprague River gets 14 inches of rain and melted snow a year. December is the wettest month and August the driest.
About 99 frost-free days a year
In half of years the last 32° night comes by June 9 and the first one by September 18. That leaves about 99 frost-free days for gardens, shorter than 99% of U.S. towns.
Heating and cooling a home in Sprague River
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Sprague River, 97% of that work is heating and 3% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Sprague River compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Sprague River averaged 1.8° warmer than the 1900s. The biggest change is in January (+3.5°). The shift is larger than in 87% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Sprague River’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 26° to 41°. December is the most reliable, staying within 9°.
Common questions about Sprague River’s climate
What is the coldest month in Sprague River?
December, with a typical high of 39° and a low of 19°.
What is the hottest month in Sprague River?
July, with a typical high of 85° and a low of 45°. About 18 days a year reach 90°.
When is the first frost in Sprague River?
In half of years the first 32° night comes by September 18, and the last spring frost by June 9.
What is the rainiest month in Sprague River?
December, with 2.3 inches of rain and melted snow. The year totals 14 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Sprague River itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Klamath Falls Intl Airport, OR (24 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.