Bend weather by month
Bend runs from about 0°C in January to 23°C in July, with January the wettest month at 182 mm.
warmest month
July
23°C
coolest month
January
0°C
wettest month
January
182 mm
worst air month
January
9 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 0°C | 182 mm | 123 h | 9 |
| February | 2°C | 83 mm | 190 h | 5 |
| March | 3°C | 53 mm | 282 h | 3 |
| April | 6°C | 44 mm | 309 h | 4 |
| May | 10°C | 47 mm | 384 h | 4 |
| June | 16°C | 27 mm | 395 h | 3 |
| July | 23°C | 1 mm | 447 h | 4 |
| August | 19°C | 11 mm | 400 h | 7 |
| September | 17°C | 15 mm | 346 h | 7 |
| October | 10°C | 57 mm | 279 h | 3 |
| November | 3°C | 120 mm | 147 h | 5 |
| December | 2°C | 180 mm | 127 h | 5 |
About 3,429 hours of sun a year. Roughly 82 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-25. Full method, licences and the list of sources we rejected are on the methodology page.