Salem, OR weather in September
In September, Salem sees highs around 78°F and lows around 51°F: mild, with some rain. There are about 6 days with rain. Great for outdoor plans.
- Normal high
- 78°F
- Normal low
- 51°F
- Wet days
- 6
- 1.5 in total
- Muggy days
- 0
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 81°F | 72°F |
| Normal low | 53°F | 47°F |
| Chance of a wet day | 17% | 29% |
| Sunrise / sunset | 6:34 am / 7:49 pm | 7:09 am / 6:55 pm |
| Daylight | 13.3 h | 11.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical September day
- 6 am52°Fdew point 49°F
- 9 am62°Fdew point 51°F
- Noon70°Fdew point 50°F
- 3 pm75°Fdew point 49°F
- 6 pm71°Fdew point 50°F
- 9 pm61°Fdew point 50°F
NOAA hourly normals (local standard time) from Salem Mcnary Fld (3 mi away); average wind 5 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F18 of 30
- Hot dayshigh 90°F or more2 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow6 of 30
- Notable rainat least 0.10 in3 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 1.5 in; a dry September brings about 0.6 in and a wet one about 2.0 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How September varies from year to year
- Warmest September, 1991-20201991: average high 82°F
- Coolest September2004: average high 72°F
- Wettest September2013: 7.0 in
- Driest September1993: 0.01 in
- Highest reading98°F (September 3, 2017)
- Lowest reading32°F (September 23, 2000)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 84°F | 78°F | 65°F |
| Normal low | 55°F | 51°F | 44°F |
| Wet days | 3 | 6 | 13 |
| Comfortable days | 12 | 18 | 13 |
| Daylight | 14.0 h | 12.5 h | 11.0 h |
Highs change by -6°F from August and -13°F into October.
Nearby alternatives in September
- Drier: Bend, OR104 mi · high 76°F · 2 wet days
- Cooler: Cannon Beach, OR79 mi · high 68°F · 9 wet days
How Salem ranks in September
- Normal high232nd warmest of 378 cities; 2nd of 6 in Oregon
- Wet days124th driest of 378
- Comfortable days32nd most of 342
What to pack for Salem in September
- Layers – afternoons near 78°F but nights near 51°F
Heating and cooling
September has 82 heating degree days and 54 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Salem in September?
The normal high is 78°F and the normal low is 51°F. From 1991 to 2020 the hottest September reading was 98°F (most recently on September 3, 2017).
Does it rain a lot in Salem in September?
About 6 days in September have at least 0.01 in of precipitation, and the normal total is 1.5 in. The wettest September in 1991-2020 was in 2013 (7.1 in); the driest was in 1993 (0.01 in).
Is September a good time to visit Salem?
September ranks 3rd of 12 months on our comfort score for Salem (73 out of 100). It has about 18 comfortable days and about 2 days at 90°F or hotter. The best month is June.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: Salem Mcnary Fld (USW00024232), 3.1 mi SSE of the city center, 205 ft . NOAA normals and daily records, 1991-2020.
- Snowfall: Corvallis State Univ (USC00351862), 23 mi SSW of the city center, 225 ft (68 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Snow depth: Silverton (USC00357823), 14 mi ENE of the city center, 408 ft (251 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Mcnary Field Airport (726940-24232), 3.1 mi SSE of the city center, 208 ft (51 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).