Warren’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 80°, a January night drops to 34°, and snow is almost unheard of.
A year in Warren at a glance
Each month’s typical high and low, and what it brings.
What stands out about Warren’s climate
Compared with towns across the U.S., with Warren’s place in Oregon beside it.
What a year in Warren feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 201 frost-free days a year
In half of years the last 32° night comes by April 18 and the first by November 7. Frost and day counts come from NOAA’s station at Saint Helens Rfd, OR, 2.3 miles from the town’s center, 120 ft higher.
The 2023 USDA map puts Warren’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 15°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 43 inches of rain a year
December is the wettest month and July the driest. Rain falls on about 163 days a year. Snow is rare: about 0.8" in a normal year at Vancouver 4 Nne, WA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Warren
94% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Saint Helens Rfd, OR.
Living with Warren’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
201 frost-free days in zone 8b. The last frost comes by Apr 18 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 7.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 1.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Warren from natural hazards, earthquakes are the largest share (50%); heat waves, cold waves, winter storms and ice storms together are 14%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Warren and similar climates
TownRatings has no climate map of the towns around Warren yet.
Climates most like Warren’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Warren, OR | 34° | 80° | 43" | 0.8" |
| Ben Lomond, CA | 40° | 79° | 43" | 0.0" |
| Swannanoa, NC | 27° | 83° | 48" | 2.1" |
| Marysville, WA | 36° | 75° | 44" | 3.0" |
| Brigantine, NJ | 28° | 83° | 45" | 10" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Warren averaged 1.3° warmer than the 1900s. The biggest change is in January (+3.1°).
A smaller shift than in 55% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Warren compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Warren’s place among Oregon’s.
Warren weather by month
Highs, lows and precipitation from NOAA’s grid at Warren’s center; snow, wet days and snow on the ground from Vancouver 4 Nne, WA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 46° | 34° | 6.2" | 0.5" | 20 | 1 | 33° – 44° |
| February | 50° | 34° | 4.6" | 0.1" | 16 | 0 | 37° – 47° |
| March | 56° | 37° | 4.6" | 0.0" | 18 | 0 | 43° – 51° |
| April | 61° | 40° | 3.5" | 0.0" | 17 | 0 | 46° – 55° |
| May | 68° | 46° | 2.4" | 0.0" | 14 | 0 | 51° – 61° |
| June | 73° | 50° | 1.6" | 0.0" | 10 | 0 | 58° – 67° |
| July | 80° | 54° | 0.4" | 0.0" | 4 | 0 | 62° – 70° |
| August | 81° | 54° | 0.6" | 0.0" | 4 | 0 | 64° – 71° |
| September | 75° | 50° | 1.7" | 0.0" | 8 | 0 | 59° – 65° |
| October | 63° | 43° | 3.7" | 0.0" | 14 | 0 | 49° – 58° |
| November | 52° | 38° | 6.6" | 0.0" | 19 | 0 | 39° – 50° |
| December | 45° | 34° | 7.3" | 0.2" | 20 | 0 | 34° – 43° |
| Year | 62° | 43° | 43.1" | 0.8" | 163 | 1 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 33° to 44°. September is the most reliable, staying within 6°.
Where Warren’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Warren’s center.
- Snow: Vancouver 4 Nne, WA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Saint Helens Rfd, OR, 2.3 miles from the town’s center, 120 ft higher; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Warren’s climate
What is the weather like in Warren?
A typical July afternoon reaches 80°, a January night drops to 34°, and snow is almost unheard of. Milder January nights than 79% of U.S. towns; cooler July afternoons than 91% of U.S. towns.
How cold does it get in Warren in winter?
December nights average 34°. About 59 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 34°.
How much snow does Warren get?
About 0.8 inches in a normal winter at Vancouver 4 Nne, WA, so most winters see none.
How hot does it get in Warren?
July, with a typical high of 80° and a low of 54°. About 20 days a year reach 90° and 2 reach 100° (Saint Helens Rfd, OR).
When is the first and last frost in Warren?
In half of years the last spring frost (32°) comes by April 18 and the first fall frost by November 7, about 201 frost-free days, at Saint Helens Rfd, OR.
What growing zone is Warren in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 15°.
What is the best time of year to visit Warren?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Warren getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 55% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Warren.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.