Barlow, OR climate
Barlow has mild winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 36°, and about 1 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Barlow feels like
Winter
Spring
Summer
Fall
Barlow 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 | 48° | 36° | 5.9" | 0.6" | 20 | 0 | 35° – 46° |
| February | 52° | 37° | 4.3" | 0.1" | 16 | 0 | 38° – 49° |
| March | 57° | 39° | 4.6" | 0.2" | 18 | 0 | 44° – 52° |
| April | 62° | 42° | 3.5" | 0 | 15 | 0 | 47° – 56° |
| May | 69° | 47° | 2.6" | 0 | 11 | 0 | 53° – 62° |
| June | 74° | 52° | 1.6" | 0 | 8 | 0 | 59° – 69° |
| July | 82° | 55° | 0.4" | 0 | 3 | 0 | 63° – 72° |
| August | 82° | 55° | 0.5" | 0 | 3 | 0 | 65° – 72° |
| September | 76° | 51° | 1.6" | 0 | 7 | 0 | 60° – 66° |
| October | 64° | 45° | 3.9" | 0 | 13 | 0 | 51° – 59° |
| November | 53° | 39° | 6.1" | 0 | 19 | 0 | 40° – 51° |
| December | 47° | 36° | 6.9" | 0.1" | 20 | 0 | 36° – 44° |
| Year | 64° | 44° | 41.9" | 1.0" | 153 | 0 |
“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 Barlow
Barlow 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 153 days a year.
About 243 frost-free days a year
In half of years the last 32° night comes by March 18 and the first one by November 13. That leaves about 243 frost-free days for gardens, longer than 89% of U.S. towns.
Heating and cooling a home in Barlow
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Barlow, 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 Barlow 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 Barlow averaged 1.2° warmer than the 1900s. The biggest change is in January (+2.8°). The shift is larger than in 51% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Barlow’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 35° to 46°. September is the most reliable, staying within 6°.
Common questions about Barlow’s climate
What is the coldest month in Barlow?
December, with a typical high of 47° and a low of 36°.
What is the hottest month in Barlow?
August, with a typical high of 82° and a low of 55°. About 16 days a year reach 90°.
How much snow does Barlow get?
About 1 inches in a normal winter, most of it in January.
When is the first frost in Barlow?
In half of years the first 32° night comes by November 13, and the last spring frost by March 18.
What is the rainiest month in Barlow?
December, with 6.9 inches of rain and melted snow. The year totals 42 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Barlow itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Rex 1 S, OR (10 mi, snow) and North Willamette Exp Stn, 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.