Photo: Robert Ashworth from Bellingham, WA., USA · CC BY 2.0Nights stay kind in Peoria each January, milder than in 81% of U.S. towns
Midsummer highs settle at about 83°. Expect the heaviest rain or snow in December and the lightest in July. In July, afternoons here are cooler than in 68% of U.S. towns. Keep the boiler serviced for the months from November to March, which average under 50°.
A year in Peoria at a glance
Each month’s typical high and low, and what it brings.
What stands out about Peoria’s climate
Compared with towns across the U.S., with Peoria’s place in Oregon beside it.
What a year in Peoria feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 203 frost-free days a year
In half of years the last 32° night comes by April 11 and the first by October 30. Frost and day counts come from NOAA’s station at Corvallis 10 Ssw, OR, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Peoria’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 18°. 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 4 inches of snow a winter
Snow, measured at Corvallis 1.9 Sse, OR, falls mostly in February. Precipitation (rain plus melted snow) adds up to 42 inches a year; December is the wettest month and July the driest. Rain or snow falls on about 147 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Peoria
96% 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 Corvallis 10 Ssw, OR.
Living with Peoria’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
203 frost-free days in zone 8b. The last frost comes by Apr 11 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 30.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Peoria from natural hazards, earthquakes are the largest share (53%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Peoria and similar climates
TownRatings has no climate map of the towns around Peoria yet.
Climates most like Peoria’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 |
|---|---|---|---|---|
| Peoria, OR | 35° | 83° | 42" | 3.9" |
| Healdsburg, CA | 38° | 85° | 41" | 0.0" |
| Ocean City, MD | 30° | 86° | 46" | 10" |
| Brigantine, NJ | 28° | 83° | 45" | 10" |
| Kill Devil Hills, NC | 35° | 86° | 50" | 1.1" |
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 Peoria averaged 1.1° warmer than the 1900s. The biggest change is in January (+2.5°).
A smaller shift than in 69% 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 Peoria compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Peoria’s place among Oregon’s.
Peoria weather by month
Highs, lows and precipitation from NOAA’s grid at Peoria’s center; snow, wet days and snow on the ground from Corvallis 1.9 Sse, OR. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 48° | 35° | 6.3" | 0.5" | 17 | 0 | 36° – 45° |
| February | 52° | 36° | 4.8" | 1.9" | 16 | 1 | 38° – 49° |
| March | 57° | 38° | 5.0" | 0.6" | 19 | 0 | 44° – 53° |
| April | 62° | 40° | 3.4" | 0.0" | 16 | 0 | 47° – 56° |
| May | 69° | 45° | 2.4" | 0.0" | 11 | 0 | 52° – 62° |
| June | 74° | 49° | 1.3" | 0.0" | 8 | 0 | 57° – 68° |
| July | 83° | 52° | 0.4" | 0.0" | 2 | 0 | 62° – 72° |
| August | 84° | 52° | 0.4" | 0.0" | 3 | 0 | 65° – 72° |
| September | 78° | 49° | 1.4" | 0.0" | 7 | 0 | 60° – 66° |
| October | 65° | 43° | 3.4" | 0.0" | 13 | 0 | 50° – 59° |
| November | 53° | 39° | 6.3" | 0.1" | 17 | 0 | 41° – 51° |
| December | 47° | 35° | 7.4" | 0.8" | 19 | 1 | 36° – 45° |
| Year | 64° | 43° | 42.3" | 3.9" | 147 | 3 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 38° to 49°. September is the most reliable, staying within 6°.
Where Peoria’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 Peoria’s center.
- Snow: Corvallis 1.9 Sse, OR.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Corvallis 10 Ssw, OR, 6 miles from the town’s center, at about the same height; 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 Peoria’s climate
What is the weather like in Peoria?
A typical July afternoon reaches 83°, a January night drops to 35°, and about 4 inches of snow falls in a normal winter. Milder January nights than 81% of U.S. towns; cooler July afternoons than 68% of U.S. towns.
How cold does it get in Peoria in winter?
December nights average 35°. About 60 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 36°.
How much snow does Peoria get?
About 3.9 inches in a normal winter at Corvallis 1.9 Sse, OR, most of it in February, with snow on the ground about 3 days a year.
How hot does it get in Peoria?
July, with a typical high of 83° and a low of 52°. About 15 days a year reach 90° (Corvallis 10 Ssw, OR).
When is the first and last frost in Peoria?
In half of years the last spring frost (32°) comes by April 11 and the first fall frost by October 30, about 203 frost-free days, at Corvallis 10 Ssw, OR.
What growing zone is Peoria in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 18°.
What is the best time of year to visit Peoria?
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 Peoria getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 69% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Peoria.
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.