Weather in Oneida County, New York for September 2025
Until now, September 2025 in Oneida County has been nearly identical to the historical average, with a temperature of 21.2 °F (showing only a slight deviation of 0.1 °F).
The forecast for the upcoming days in Oneida County predicts a temperature of 22.5 °F, which is slightly above the historical average.
In general, the average temperature in Oneida County at the beginning of September is 21.3 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 19.4 °F by the end of September.
Oneida County experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 147.3 mm.
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Oneida County Weather September
Temperatures trend during September in Oneida County
September weather in Oneida County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain | 24° /10° | 1.4 mm | 5 | |
| Sept. 2 | Patchy light drizzle | 19° /9° | 0.2 mm | 5 | |
| Sept. 3 |  Partly cloudy | 21° /9° | 0 mm | 6 | |
| Sept. 4 |  Sunny | 23° /9° | 36.5 mm | 6 | |
| Sept. 5 | Sunny | 24° /11° | 13.9 mm | 6 | |
| Sept. 6 |  Mist | 21° /11° | 1.8 mm | 5 | |
| Sept. 7 |  Moderate or heavy rain shower | 17° /9° | 12.7 mm | 4 | |
| Sept. 8 |  Patchy rain possible | 17° /6° | 0.4 mm | 5 | |
| Sept. 9 | Light rain shower | 19° /5° | 4 mm | 5 | |
| Sept. 10 | Mist | 20° /8° | 0 mm | 5 | |
| Sept. 11 |  Overcast | 23° /8° | 0 mm | 5 | |
| Sept. 12 | Partly cloudy | 23° /10° | 0 mm | 6 | |
| Sept. 13 | Sunny | 23° /10° | 0 mm | 6 | |
| Sept. 14 | Patchy rain possible | 24° /13° | 0 mm | 6 | |
| Sept. 15 | Partly cloudy | 25° /6° | 0 mm | 1.4 | |
| Sept. 16 | Partly cloudy | 22° /8° | 0 mm | 1.4 | |
| Sept. 17 | Fog | 22° /7° | 0 mm | 1.2 | |
| Sept. 18 |  Cloudy | 27° /10° | 0 mm | 1.3 | |
| Sept. 19 | Sunny | 22° /8° | 0 mm | 0 | |
| Sept. 20 | Sunny | 20° /4° | 0 mm | 4 | |
| Sept. 21 | Sunny | 25° /9° | 0 mm | 5 | |
| Sept. 22 | Sunny | 25° /11° | 0 mm | 5 | |
| Sept. 23 | Sunny | 27° /12° | 0 mm | 5 | |
| Sept. 24 |  Moderate rain | 25° /12° | 5.5 mm | 4 | |
| Sept. 25 | Moderate rain | 17° /13° | 6.4 mm | 4 | |
| Sept. 26 | Moderate rain | 17° /16° | 6.4 mm | 4 | |
| Sept. 27 | Patchy rain possible | 18° /13° | 2.8 mm | 4 | |
| Sept. 28 | Sunny | 23° /11° | 0 mm | 5 | |
| Sept. 29 | Moderate rain | 16° /15° | 15.1 mm | 4 | |
| Sept. 30 | Overcast | 20° /15° | 0 mm | 5 | |
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Oneida County in September - FAQ
September rainfall patterns in Oneida County
UV exposure in Oneida County during September
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Where is Oneida County?Get accurate weather forecasts for Oneida County, located at latitude 43.101 and longitude -75.233. Stay updated with localized weather information tailored for Oneida County.