Photo: 46percent · Public domainJanuary in Lebanon stays gentler than in 81% of U.S. towns
July afternoons average 82°. Summers stay cool: July afternoons here are cooler than in 79% of U.S. towns. Since 1901–2000, the year has warmed by 1.1°, most of all in January. Warm coats and heating bills mark the months from November to March, when means dip under 50°.
A year in Lebanon at a glance
Each month’s typical high and low, and what it brings.
What stands out about Lebanon’s climate
Compared with towns across the U.S., with Lebanon’s place in Oregon beside it.
What a year in Lebanon feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 248 frost-free days a year
In half of years the last 32° night comes by March 14 and the first by November 18. Frost and day counts come from NOAA’s station at Lebanon, OR, 0.4 miles from the town’s center, at about the same height.
The 2023 USDA map puts Lebanon’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 47 inches of rain a year
December is the wettest month and July the driest. Rain falls on about 140 days a year. Snow is rare: about 0.0" in a normal year at Waterloo, OR, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Lebanon
89% 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 Lebanon, OR.
Living with Lebanon’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
248 frost-free days in zone 8b. The last frost comes by Mar 14 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 18.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August, September and October. 3.2 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Lebanon from natural hazards, river flooding is the largest share (51%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Lebanon and similar climates
TownRatings has no climate map of the towns around Lebanon yet.
Climates most like Lebanon’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 |
|---|---|---|---|---|
| Lebanon, OR | 35° | 82° | 47" | 0.0" |
| Healdsburg, CA | 38° | 85° | 41" | 0.0" |
| Kill Devil Hills, NC | 35° | 86° | 50" | 1.1" |
| Centralia, WA | 34° | 78° | 49" | 3.9" |
| Virginia Beach, VA | 32° | 87° | 48" | 3.4" |
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 Lebanon averaged 1.1° warmer than the 1900s. The biggest change is in January (+2.5°).
A smaller shift than in 74% 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 Lebanon compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lebanon’s place among Oregon’s.
Lebanon weather by month
Highs, lows and precipitation from NOAA’s grid at Lebanon’s center; snow, wet days and snow on the ground from Waterloo, OR. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 48° | 35° | 6.6" | 0.0" | 17 | 0 | 36° – 46° |
| February | 51° | 36° | 5.0" | 0.0" | 15 | 0 | 37° – 49° |
| March | 56° | 37° | 5.4" | 0.0" | 16 | 0 | 43° – 52° |
| April | 61° | 40° | 4.3" | 0.0" | 15 | 0 | 46° – 56° |
| May | 68° | 45° | 3.0" | 0.0" | 12 | 0 | 52° – 61° |
| June | 73° | 49° | 1.9" | 0.0" | 9 | 0 | 57° – 67° |
| July | 82° | 53° | 0.4" | 0.0" | 3 | 0 | 62° – 71° |
| August | 83° | 52° | 0.5" | 0.0" | 3 | 0 | 64° – 71° |
| September | 76° | 49° | 1.7" | 0.0" | 6 | 0 | 60° – 66° |
| October | 64° | 43° | 4.0" | 0.0" | 12 | 0 | 49° – 58° |
| November | 53° | 38° | 6.8" | 0.0" | 16 | 0 | 40° – 50° |
| December | 46° | 35° | 7.7" | 0.0" | 16 | 0 | 35° – 45° |
| Year | 63° | 43° | 47.3" | 0.0" | 140 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 37° to 49°. September is the most reliable, staying within 6°.
Where Lebanon’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 Lebanon’s center.
- Snow: Waterloo, OR (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Lebanon, OR, 0.4 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 Lebanon’s climate
What is the weather like in Lebanon?
A typical July afternoon reaches 82°, a January night drops to 35°, and snow is almost unheard of. Milder January nights than 81% of U.S. towns; cooler July afternoons than 79% of U.S. towns.
How cold does it get in Lebanon in winter?
December nights average 35°. About 39 nights a year reach 32° or below. In the coldest December of the last 30 years the month averaged 35°.
How much snow does Lebanon get?
About 0.0 inches in a normal winter at Waterloo, OR, so most winters see none.
How hot does it get in Lebanon?
July, with a typical high of 82° and a low of 53°. About 30 days a year reach 90° and 5 reach 100° (Lebanon, OR).
When is the first and last frost in Lebanon?
In half of years the last spring frost (32°) comes by March 14 and the first fall frost by November 18, about 248 frost-free days, at Lebanon, OR.
What growing zone is Lebanon 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 Lebanon?
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 Lebanon getting warmer?
Yes: 1991–2020 averaged 1.1° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 74% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lebanon.
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.