McMinnville, OR climate
McMinnville has mild winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 36°, and about 13 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in McMinnville feels like
Winter
Spring
Summer
Fall
McMinnville 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 | 47° | 36° | 6.5" | 3.9" | 22 | 5 | 36° – 46° |
| February | 51° | 36° | 4.9" | 3.0" | 18 | 2 | 38° – 49° |
| March | 56° | 38° | 4.5" | 1.3" | 22 | 1 | 43° – 52° |
| April | 61° | 41° | 3.2" | 0.1" | 19 | 0 | 46° – 57° |
| May | 69° | 46° | 2.0" | 0 | 13 | 0 | 52° – 61° |
| June | 74° | 50° | 1.2" | 0 | 9 | 0 | 58° – 68° |
| July | 83° | 54° | 0.3" | 0 | 3 | 0 | 62° – 72° |
| August | 83° | 53° | 0.4" | 0 | 4 | 0 | 65° – 72° |
| September | 77° | 50° | 1.3" | 0 | 8 | 0 | 59° – 66° |
| October | 64° | 44° | 3.4" | 0 | 16 | 0 | 50° – 60° |
| November | 53° | 39° | 6.3" | 0.5" | 22 | 1 | 41° – 50° |
| December | 46° | 35° | 8.0" | 4.5" | 22 | 2 | 36° – 44° |
| Year | 64° | 43° | 41.9" | 13.3" | 177 | 10 |
“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 McMinnville
McMinnville gets 42 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 177 days a year. Snow covers the ground about 10 days of the year.
About 216 frost-free days a year
In half of years the last 32° night comes by April 5 and the first one by November 7. That leaves about 216 frost-free days for gardens, longer than 81% of U.S. towns.
Heating and cooling a home in McMinnville
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In McMinnville, 92% of that work is heating and 8% 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 McMinnville 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 McMinnville averaged 1.1° warmer than the 1900s. The biggest change is in January (+2.6°). The shift is smaller than in 56% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at McMinnville’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 38° to 49°. August is the most reliable, staying within 7°.
Common questions about McMinnville’s climate
What is the coldest month in McMinnville?
December, with a typical high of 46° and a low of 35°.
What is the hottest month in McMinnville?
August, with a typical high of 83° and a low of 53°. About 19 days a year reach 90°.
How much snow does McMinnville get?
About 13 inches in a normal winter, most of it in December.
When is the first frost in McMinnville?
In half of years the first 32° night comes by November 7, and the last spring frost by April 5.
What is the rainiest month in McMinnville?
December, with 8.0 inches of rain and melted snow. The year totals 42 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for McMinnville itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Haskins Dam, OR (10 mi, snow) and Mc Minnville, OR (2 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.