Climate averages 1991–2020
Bend weather
in September.
A warm, fairly dry month: the 3rd warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Bend: daytime highs average 22.9°C and nights cool to about 7.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 16 mm of rain on roughly 3 days, which makes September a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 34 min on an average September day.
The nearest other city in this atlas is Eugene (142 km away). In September its highs average 24.3°C, 1.4°C warmer than Bend, with 41 mm of rain.
Among the 498 cities listed in the United States, Bend ranks joint 410th of 498 for the warmest September highs and 117th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Bend is 4.0°C cooler than that mean.
From September to October, average highs fall by 7.8°C to 15.0°C, and monthly rainfall rises from 16 mm to 37 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bend climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.8°C-4.7°C | -4.7°C | 71 | 12.2 | 9.39 h |
| February | 5.2°C-4.2°C | -4.2°C | 56 | 11.1 | 10.410 h |
| March | 8.2°C-2.4°C | -2.4°C | 56 | 12.1 | 11.912 h |
| April | 11.7°C0.2°C | 0.2°C | 46 | 11.5 | 13.413 h |
| May | 16.9°C4.4°C | 4.4°C | 45 | 9.6 | 14.715 h |
| June | 21.4°C7.6°C | 7.6°C | 26 | 6.7 | 15.415 h |
| July | 27.7°C11.3°C | 11.3°C | 14 | 3.7 | 15.115 h |
| August | 27.2°C11.3°C | 11.3°C | 14 | 3.9 | 14.014 h |
| September, selected | 22.9°C7.9°C | 7.9°C | 16 | 3.4 | 12.613 h |
| October | 15.0°C2.9°C | 2.9°C | 37 | 6.8 | 11.011 h |
| November | 7.6°C-1.5°C | -1.5°C | 69 | 11.6 | 9.710 h |
| December | 3.2°C-4.9°C | -4.9°C | 96 | 13.1 | 9.09 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Eugene in SeptemberUnited States · 142 kmHigh 24.3°C · Low 11.3°C · 41 mm rain
- Salem, United States in SeptemberUnited States · 168 kmHigh 24.5°C · Low 12.0°C · 32 mm rain
- Gresham in SeptemberUnited States · 183 kmHigh 22.8°C · Low 11.3°C · 58 mm rain
- Portland in SeptemberUnited States · 195 kmHigh 24.1°C · Low 12.3°C · 42 mm rain
- Beaverton in SeptemberUnited States · 198 kmHigh 23.7°C · Low 12.0°C · 42 mm rain
- Vancouver, United States in SeptemberUnited States · 205 kmHigh 23.5°C · Low 12.0°C · 62 mm rain
- Hillsboro in SeptemberUnited States · 210 kmHigh 23.7°C · Low 12.2°C · 43 mm rain
- Medford in SeptemberUnited States · 230 kmHigh 26.9°C · Low 11.7°C · 22 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bend) is explained once on the Bend year overview and on the Sources, method and limits page.