Shelton weather in September: Shelton, Washington: normal highs, lows, rain and records for September
Shelton in September has a normal high of 74°F and a normal low of 48°F, a daily mean of 61°F, falling from 77°F on the 1st to 68°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 2.50 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 9°C, 64 mm of precipitation in September.
- NOAA stationShelton Sanderson Field
- Station IDUSW00094227
- Location47.24°N 123.14°W
- Elevation271 ft (83 m)
- Population10,737
- Jan 47° 34°
- Feb 50° 33°
- Mar 55° 35°
- Apr 60° 38°
- May 67° 44°
- Jun 72° 49°
- Jul 78° 52°
- Aug 79° 52°
- Sep 74° 48°
- Oct 62° 41°
- Nov 52° 36°
- Dec 46° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Shelton in September?
The normal high is 74°F and the normal low 48°F, for a daily mean of 60.5°F. September is 4.8°F cooler than August and 9.2°F warmer than October. September is the 3rd warmest month of the year in Shelton and the 9th wettest. Across the month the normal high falls 9°F, from 77°F on September 1 to 68°F on September 30. From one year to the next September's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 59°F and 62°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 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 77°F | 50°F | 24% | 13% |
| September 8 | 76°F | 49°F | 27% | 15% |
| September 15 | 74°F | 48°F | 30% | 18% |
| September 22 | 72°F | 46°F | 33% | 21% |
| September 30 | 68°F | 45°F | 37% | 25% |
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 | 77°F | 50°F | 24% | 13% | 13 h 30 min |
| September 2 | 77°F | 50°F | 24% | 13% | 13 h 20 min |
| September 3 | 77°F | 50°F | 25% | 14% | 13 h 20 min |
| September 4 | 77°F | 50°F | 25% | 14% | 13 h 20 min |
| September 5 | 77°F | 50°F | 25% | 14% | 13 h 10 min |
| September 6 | 76°F | 49°F | 26% | 15% | 13 h 10 min |
| September 7 | 76°F | 49°F | 26% | 15% | 13 h 10 min |
| September 8 | 76°F | 49°F | 27% | 15% | 13 h |
| September 9 | 76°F | 49°F | 27% | 16% | 13 h |
| September 10 | 76°F | 49°F | 27% | 16% | 13 h |
| September 11 | 75°F | 49°F | 28% | 16% | 12 h 50 min |
| September 12 | 75°F | 48°F | 28% | 17% | 12 h 50 min |
| September 13 | 75°F | 48°F | 29% | 17% | 12 h 50 min |
| September 14 | 74°F | 48°F | 29% | 18% | 12 h 40 min |
| September 15 | 74°F | 48°F | 30% | 18% | 12 h 40 min |
| September 16 | 74°F | 48°F | 31% | 18% | 12 h 40 min |
| September 17 | 74°F | 47°F | 31% | 19% | 12 h 30 min |
| September 18 | 73°F | 47°F | 31% | 19% | 12 h 30 min |
| September 19 | 73°F | 47°F | 32% | 20% | 12 h 30 min |
| September 20 | 72°F | 47°F | 32% | 20% | 12 h 20 min |
| September 21 | 72°F | 47°F | 33% | 20% | 12 h 20 min |
| September 22 | 72°F | 46°F | 33% | 21% | 12 h 20 min |
| September 23 | 71°F | 46°F | 34% | 21% | 12 h 10 min |
| September 24 | 71°F | 46°F | 34% | 22% | 12 h 10 min |
| September 25 | 71°F | 46°F | 35% | 22% | 12 h 10 min |
| September 26 | 70°F | 45°F | 35% | 23% | 12 h |
| September 27 | 70°F | 45°F | 36% | 23% | 12 h |
| September 28 | 69°F | 45°F | 36% | 24% | 12 h |
| September 29 | 69°F | 45°F | 37% | 24% | 11 h 50 min |
| September 30 | 68°F | 45°F | 37% | 25% | 11 h 50 min |
- Normal high
- 74°FSeptember average
- Normal low
- 48°FSeptember average
- Precipitation
- 2.50 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 30 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 17
- Days at 80°F or more
- 6
- Sunshine
- 74%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094227; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Shelton in September?
On a given September day the chance of 0.01 inch or more is 30% on average, highest around September 30 (37%). In all, 2.50 in falls on 9 days of a normal September, 1 of them with an inch or more.
In a normal September in Shelton, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094227.
What are the records for September in Shelton?
The warmest September temperature on this station's record (since 1998) is 97°F, on September 5, 2024; the coldest is 31°F, on September 30, 2023. The wettest September brought 9.38 in (2013).
The September mean against the 1991-2020 normal of 60.5°F: 2021 59.5°F (−1.0), 2022 63.1°F (+2.6), 2023 59.2°F (−1.3), 2024 60.6°F (+0.1), 2026 58.3°F (−2.2). 2 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.5°F | −1.0°F | 6.23 in |
| 2022 | 63.1°F | +2.6°F | 0.32 in |
| 2023 | 59.2°F | −1.3°F | 3.33 in |
| 2024 | 60.6°F | +0.1°F | 2.04 in |
| 2026 | 58.3°F | −2.2°F | 2.84 in |
Source: records: ACIS, station USW00094227; recent months: ACIS, station USW00094227. Records and recent months use complete months only.
How does September in Shelton compare across Washington?
Across the 96 places PlainClimate covers in Washington, September normal highs run from 66°F in Coupeville to 81°F in Pasco; Shelton's is 74°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.