Bend weather in September: Bend, Oregon: normal highs, lows, rain and records for September
Bend in September has a normal high of 76°F and a normal low of 41°F, a daily mean of 59°F, falling from 80°F on the 1st to 71°F by the 30th. Measurable precipitation falls on 2 days in a normal September, 0.31 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 5°C, 8 mm of precipitation in September.
- NOAA stationBend
- Station IDUSC00350694
- Location44.06°N 121.28°W
- Elevation3,660 ft (1,116 m)
- Population106,926
- Jan 43° 25°
- Feb 46° 24°
- Mar 52° 28°
- Apr 58° 31°
- May 66° 37°
- Jun 74° 42°
- Jul 84° 49°
- Aug 83° 48°
- Sep 76° 41°
- Oct 63° 34°
- Nov 49° 28°
- Dec 41° 23°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Bend in September?
The normal high is 76°F and the normal low 41°F, for a daily mean of 58.5°F. September is 7.0°F cooler than August and 10.2°F warmer than October. September is the 3rd warmest month of the year in Bend and the 12th wettest. Across the month the normal high falls 9°F, from 80°F on September 1 to 71°F on September 30. From one year to the next September's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 56°F and 61°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 9%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 80°F | 45°F | 7% | 4% |
| September 8 | 78°F | 43°F | 7% | 4% |
| September 15 | 76°F | 42°F | 8% | 3% |
| September 22 | 74°F | 40°F | 8% | 3% |
| September 30 | 71°F | 38°F | 9% | 4% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 80°F | 45°F | 7% | 4% | 13 h 20 min |
| September 2 | 80°F | 44°F | 7% | 4% | 13 h 10 min |
| September 3 | 79°F | 44°F | 7% | 4% | 13 h 10 min |
| September 4 | 79°F | 44°F | 7% | 4% | 13 h 10 min |
| September 5 | 79°F | 44°F | 7% | 4% | 13 h |
| September 6 | 79°F | 44°F | 7% | 4% | 13 h |
| September 7 | 78°F | 43°F | 7% | 4% | 13 h |
| September 8 | 78°F | 43°F | 7% | 4% | 13 h |
| September 9 | 78°F | 43°F | 7% | 4% | 12 h 50 min |
| September 10 | 78°F | 43°F | 7% | 4% | 12 h 50 min |
| September 11 | 77°F | 43°F | 7% | 3% | 12 h 50 min |
| September 12 | 77°F | 42°F | 7% | 3% | 12 h 40 min |
| September 13 | 77°F | 42°F | 7% | 3% | 12 h 40 min |
| September 14 | 77°F | 42°F | 7% | 3% | 12 h 40 min |
| September 15 | 76°F | 42°F | 8% | 3% | 12 h 40 min |
| September 16 | 76°F | 41°F | 8% | 3% | 12 h 30 min |
| September 17 | 76°F | 41°F | 8% | 3% | 12 h 30 min |
| September 18 | 75°F | 41°F | 8% | 3% | 12 h 30 min |
| September 19 | 75°F | 41°F | 8% | 3% | 12 h 20 min |
| September 20 | 75°F | 40°F | 8% | 3% | 12 h 20 min |
| September 21 | 74°F | 40°F | 8% | 3% | 12 h 20 min |
| September 22 | 74°F | 40°F | 8% | 3% | 12 h 10 min |
| September 23 | 74°F | 40°F | 8% | 3% | 12 h 10 min |
| September 24 | 73°F | 39°F | 8% | 3% | 12 h 10 min |
| September 25 | 73°F | 39°F | 8% | 3% | 12 h 10 min |
| September 26 | 72°F | 39°F | 8% | 3% | 12 h |
| September 27 | 72°F | 39°F | 9% | 3% | 12 h |
| September 28 | 72°F | 38°F | 9% | 3% | 12 h |
| September 29 | 71°F | 38°F | 9% | 4% | 11 h 50 min |
| September 30 | 71°F | 38°F | 9% | 4% | 11 h 50 min |
- Normal high
- 76°FSeptember average
- Normal low
- 41°FSeptember average
- Precipitation
- 0.31 inmonth total
- Days with precipitation
- 20.01 inch or more
- Days at 90°F or more
- 1
- Nights at 32°F or colder
- 3
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 22
- Days at 80°F or more
- 11
- Sunshine
- 86%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00350694; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Bend in September?
On a given September day the chance of 0.01 inch or more is 8% on average, highest around September 30 (9%). In all, 0.31 in falls on 2 days of a normal September.
In a normal September in Bend, 1 days reach 90°F and 3 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00350694.
What are the records for September in Bend?
The warmest September temperature on this station's record (since 1901) is 100°F, on September 2, 1998; the coldest is 12°F, on September 28, 1902. The wettest September brought 2.65 in (1911); the snowiest, 1.5 inches (1934).
The September mean against the 1991-2020 normal of 58.5°F: 2021 60.2°F (+1.7), 2024 62.4°F (+3.9), 2025 62.7°F (+4.2), 2026 58.6°F (+0.1). 4 of 4 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.2°F | +1.7°F | 0.33 in |
| 2024 | 62.4°F | +3.9°F | 0.03 in |
| 2025 | 62.7°F | +4.2°F | 0.40 in |
| 2026 | 58.6°F | +0.1°F | 1.49 in |
Source: records: ACIS, station USC00350694; recent months: ACIS, station USC00350694. Records and recent months use complete months only.
How does September in Bend compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, September normal highs run from 64°F in Newport to 87°F in Cave Junction; Bend's is 76°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.