Lebanon, OR
Climate overview — based on NOAA 1991-2020 normals from LEBANON, OR US.
Year-round temperatures (°F)
Avg high
Avg low
Climate summary
Lebanon has an annual average temperature of 54.9°F with about 0 inches of precipitation per year. The warmest month is August (average high 85.8°F), and the coldest is December (average low 36.2°F).
Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
29°F
warmest to coldest month
Best time to visit Lebanon
Full guide →Climate change signal
All-time records →158 of 366 (43.2%) of Lebanon's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 2000s | 59 | |
| 2010s | 286 | |
| 2020s | 21 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 48.8°F | 36.8°F | 42.8°F | in | — | — |
| February | 52.8°F | 36.6°F | 44.7°F | in | — | — |
| March | 57.7°F | 38.8°F | 48.2°F | in | — | — |
| April | 62.1°F | 41.7°F | 51.9°F | in | — | — |
| May | 69.4°F | 47.3°F | 58.3°F | in | — | — |
| June | 75.5°F | 52.1°F | 63.8°F | in | — | — |
| July | 85.0°F | 55.2°F | 70.1°F | in | — | — |
| August | 85.8°F | 55.5°F | 70.7°F | in | — | — |
| September | 79.1°F | 50.7°F | 64.9°F | in | — | — |
| October | 65.1°F | 44.9°F | 55.0°F | in | — | — |
| November | 53.8°F | 40.0°F | 46.9°F | in | — | — |
| December | 47.3°F | 36.2°F | 41.7°F | in | — | — |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when