Oregon City weather in September: Oregon City, Oregon: normal highs, lows, rain and records for September
Oregon City in September has a normal high of 78°F and a normal low of 53°F, a daily mean of 65°F, falling from 82°F on the 1st to 73°F by the 30th. The month brings 1.64 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 12°C, 42 mm of precipitation in September.
- NOAA stationOregon City
- Station IDUSC00356334
- Location45.36°N 122.60°W
- Elevation167 ft (51 m)
- Population38,327
- Jan 48° 37°
- Feb 53° 38°
- Mar 58° 40°
- Apr 64° 43°
- May 71° 48°
- Jun 76° 53°
- Jul 84° 57°
- Aug 84° 58°
- Sep 78° 53°
- Oct 65° 47°
- Nov 53° 41°
- Dec 47° 36°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Oregon City in September?
The normal high is 78°F and the normal low 53°F, for a daily mean of 65.4°F. September is 5.4°F cooler than August and 9.7°F warmer than October. September is the 3rd warmest month of the year in Oregon City and the 10th wettest. Across the month the normal high falls 9°F, from 82°F on September 1 to 73°F on September 30. From one year to the next September's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 64°F and 67°F.
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 82°F | 56°F | – | – |
| September 8 | 80°F | 54°F | – | – |
| September 15 | 79°F | 53°F | – | – |
| September 22 | 76°F | 52°F | – | – |
| September 30 | 73°F | 50°F | – | – |
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 | 82°F | 56°F | – | – | 13 h 20 min |
| September 2 | 82°F | 55°F | – | – | 13 h 20 min |
| September 3 | 81°F | 55°F | – | – | 13 h 10 min |
| September 4 | 81°F | 55°F | – | – | 13 h 10 min |
| September 5 | 81°F | 55°F | – | – | 13 h 10 min |
| September 6 | 81°F | 55°F | – | – | 13 h |
| September 7 | 81°F | 55°F | – | – | 13 h |
| September 8 | 80°F | 54°F | – | – | 13 h |
| September 9 | 80°F | 54°F | – | – | 13 h |
| September 10 | 80°F | 54°F | – | – | 12 h 50 min |
| September 11 | 80°F | 54°F | – | – | 12 h 50 min |
| September 12 | 79°F | 54°F | – | – | 12 h 50 min |
| September 13 | 79°F | 54°F | – | – | 12 h 40 min |
| September 14 | 79°F | 53°F | – | – | 12 h 40 min |
| September 15 | 79°F | 53°F | – | – | 12 h 40 min |
| September 16 | 78°F | 53°F | – | – | 12 h 30 min |
| September 17 | 78°F | 53°F | – | – | 12 h 30 min |
| September 18 | 78°F | 53°F | – | – | 12 h 30 min |
| September 19 | 77°F | 52°F | – | – | 12 h 20 min |
| September 20 | 77°F | 52°F | – | – | 12 h 20 min |
| September 21 | 77°F | 52°F | – | – | 12 h 20 min |
| September 22 | 76°F | 52°F | – | – | 12 h 10 min |
| September 23 | 76°F | 52°F | – | – | 12 h 10 min |
| September 24 | 75°F | 51°F | – | – | 12 h 10 min |
| September 25 | 75°F | 51°F | – | – | 12 h 10 min |
| September 26 | 74°F | 51°F | – | – | 12 h |
| September 27 | 74°F | 51°F | – | – | 12 h |
| September 28 | 74°F | 50°F | – | – | 12 h |
| September 29 | 73°F | 50°F | – | – | 11 h 50 min |
| September 30 | 73°F | 50°F | – | – | 11 h 50 min |
- Normal high
- 78°FSeptember average
- Normal low
- 53°FSeptember average
- Precipitation
- 1.64 inmonth total
- Days at 90°F or more
- 3
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 25
- Days at 80°F or more
- 13
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00356334; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Oregon City in September?
In a normal September in Oregon City, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00356334.
What are the records for September in Oregon City?
The warmest September temperature on this station's record (since 1948) is 101°F, on September 4, 1955; the coldest is 33°F, on September 17, 1965. The wettest September brought 5.76 in (1920).
The September mean against the 1991-2020 normal of 65.4°F: 2022 68.7°F (+3.3). 1 of 1 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 68.7°F | +3.3°F | 0.11 in |
Source: records: ACIS, station USC00356334; recent months: ACIS, station USC00356334. Records and recent months use complete months only.
How does September in Oregon City 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; Oregon City's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Oregon City in August84°F by day, 58°F at night
- Oregon City in October65°F by day, 47°F at night
- Oregon City through the yearEvery month, frost dates, records and recent years
- Oregon in SeptemberThe statewide normal and the warmest and coolest places
- Cave Junction: Oregon's warmest Septembernormal high 87°F