Weather in Hampden County, Massachusetts for September 2026
Until now, September 2026 in Hampden County has been nearly identical to the historical average, with a temperature of 26.1 °F (showing only a slight deviation of 0.3 °F).
The forecast for the next days in Hampden County predicts a temperature of 20.6 °F, which is cooler than the historical average.
In general, the average temperature in Hampden County at the beginning of September is 26 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.7 °F by the end of September.
The climate of Hampden County in September is notably wet, with an average of 14 rainy days, and a total of 188.6 mm of precipitation.
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Hampden County Weather September
Temperatures trend during September in Hampden County
September weather in Hampden County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 24° /14° | 75.3 mm | 5 | |
| Sept. 2 |  Mist | 25° /13° | 0.4 mm | 5 | |
| Sept. 3 | Mist | 27° /12° | 1.9 mm | 5 | |
| Sept. 4 | Sunny | 27° /13° | 0 mm | 7 | |
| Sept. 5 | Sunny | 28° /14° | 13.1 mm | 7 | |
| Sept. 6 |  Partly cloudy | 26° /15° | 6.4 mm | 5 | |
| Sept. 7 |  Thundery outbreaks possible | 25° /13° | 26.5 mm | 6 | |
| Sept. 8 | Sunny | 26° /12° | 1.7 mm | 6 | |
| Sept. 9 | Partly cloudy | 25° /13° | 6.5 mm | 5 | |
| Sept. 10 |  Light rain shower | 26° /15° | 3.3 mm | 5 | |
| Sept. 11 | Light rain shower | 25° /12° | 0.6 mm | 6 | |
| Sept. 12 | Partly cloudy | 25° /13° | 0 mm | 6 | |
| Sept. 13 |  Moderate or heavy rain shower | 24° /14° | 15.3 mm | 5 | |
| Sept. 14 | Sunny | 23° /11° | 0.7 mm | 5.7 | |
| Sept. 15 | Sunny | 22° /8° | 0 mm | 6.2 | |
| Sept. 16 | Partly cloudy | 26° /11° | 0 mm | 6.2 | |
| Sept. 17 |  Overcast | 24° /15° | 0 mm | 5 | |
| Sept. 18 | Overcast | 27° /14° | 0.6 mm | 7 | |
| Sept. 19 | Sunny | 22° /9° | 0 mm | 6 | |
| Sept. 20 | Light rain shower | 20° /11° | 9.8 mm | 4 | |
| Sept. 21 | Overcast | 21° /9° | 0 mm | 6 | |
| Sept. 22 | Fog | 11° /10° | 6.7 mm | 3 | |
| Sept. 23 | Fog | 18° /7° | 0 mm | 5 | |
| Sept. 24 | Overcast | 18° /5° | 0 mm | 4 | |
| Sept. 25 | Light rain shower | 17° /10° | 11.5 mm | 4 | |
| Sept. 26 | Light rain shower | 20° /16° | 44.7 mm | 4 | |
| Sept. 27 | Sunny | 19° /12° | 1.6 mm | 5 | |
| Sept. 28 | Mist | 22° /12° | 0 mm | 5 | |
| Sept. 29 |  Patchy light drizzle | 20° /13° | 0.5 mm | 5 | |
| Sept. 30 | Overcast | 22° /12° | 0.2 mm | 5 | |
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Hampden County in September - FAQ
What are the expected maximum and minimum temperatures in Hampden County during September?
How much rainfall should be expected in Hampden County during September?
What are the typical wind conditions in Hampden County during September?
September rainfall patterns in Hampden County
UV exposure in Hampden County during September
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Where is Hampden County?Get accurate weather forecasts for Hampden County, located at latitude 42.101 and longitude -72.59. Stay updated with localized weather information tailored for Hampden County.