Black Butte Ranch, OR climate
Black Butte Ranch has chilly, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 25°, and about 85 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Black Butte Ranch feels like
Winter
Spring
Summer
Fall
Black Butte Ranch weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 41° | 25° | 3.4" | 24.3" | 19 | 20 | 25° – 38° |
| February | 44° | 26° | 2.4" | 17.5" | 16 | 19 | 27° – 41° |
| March | 49° | 28° | 2.0" | 13.0" | 20 | 15 | 34° – 44° |
| April | 54° | 31° | 1.5" | 2.9" | 18 | 4 | 38° – 48° |
| May | 63° | 37° | 1.4" | 0.2" | 15 | 0 | 45° – 56° |
| June | 71° | 41° | 0.9" | 0 | 11 | 0 | 53° – 63° |
| July | 82° | 46° | 0.4" | 0 | 4 | 0 | 56° – 67° |
| August | 81° | 45° | 0.5" | 0 | 4 | 0 | 59° – 67° |
| September | 73° | 40° | 0.7" | 0 | 7 | 0 | 53° – 60° |
| October | 59° | 34° | 1.7" | 0.1" | 14 | 0 | 41° – 52° |
| November | 46° | 29° | 3.1" | 7.6" | 19 | 6 | 31° – 43° |
| December | 39° | 24° | 4.3" | 19.6" | 19 | 17 | 26° – 35° |
| Year | 59° | 34° | 22.2" | 85.2" | 165 | 80 |
“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 Black Butte Ranch
Black Butte Ranch gets 22 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 165 days a year. Snow covers the ground about 80 days of the year.
About 134 frost-free days a year
In half of years the last 32° night comes by May 15 and the first one by September 30. That leaves about 134 frost-free days for gardens, shorter than 93% of U.S. towns.
Heating and cooling a home in Black Butte Ranch
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Black Butte Ranch, 98% of that work is heating and 2% 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 Black Butte Ranch 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 Black Butte Ranch averaged 1.0° warmer than the 1900s. The biggest change is in January (+3.3°). The shift is smaller than in 68% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Black Butte Ranch’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 27° to 41°. September is the most reliable, staying within 7°.
Common questions about Black Butte Ranch’s climate
What is the coldest month in Black Butte Ranch?
December, with a typical high of 39° and a low of 24°.
What is the hottest month in Black Butte Ranch?
July, with a typical high of 82° and a low of 46°. About 16 days a year reach 90°.
How much snow does Black Butte Ranch get?
About 85 inches in a normal winter, most of it in January.
When is the first frost in Black Butte Ranch?
In half of years the first 32° night comes by September 30, and the last spring frost by May 15.
What is the rainiest month in Black Butte Ranch?
December, with 4.3 inches of rain and melted snow. The year totals 22 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Black Butte Ranch itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Marion Forks Fish Hatchery, OR (22 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.