Hartford County (Hartford)
September
Weather in Hartford County, Connecticut for September 2026
Your guide to Hartford County weather in September - trends and predictions
So far, September 2026 in Hartford County is slightly warmer than the historical average by 0.8 °F.
The forecast for the next days in Hartford County predicts temperatures to be around 20 °F, close to the historical average.
In general, the average temperature in Hartford County at the beginning of September is 25 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.1 °F by the end of September.
Hartford County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 125.5 mm.
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Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
23°/14°
Temperatures
12 km/h
Avg max wind
74 %
Avg humidity
Hartford County Weather September
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Temperatures trend during September in Hartford County
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September weather in Hartford County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 25° /17° | 25.5 mm | 4 | |
| Sept. 2 |  Cloudy | 24° /15° | 0.2 mm | 4 | |
| Sept. 3 |  Sunny | 26° /13° | 6.4 mm | 4 | |
| Sept. 4 | Sunny | 26° /14° | 0 mm | 6 | |
| Sept. 5 | Sunny | 27° /15° | 1.8 mm | 7 | |
| Sept. 6 |  Fog | 25° /15° | 17 mm | 5 | |
| Sept. 7 |  Moderate rain | 22° /11° | 16.7 mm | 5 | |
| Sept. 8 | Sunny | 25° /10° | 0 mm | 6 | |
| Sept. 9 |  Partly cloudy | 24° /12° | 0.3 mm | 4 | |
| Sept. 10 |  Overcast | 25° /14° | 0.4 mm | 4 | |
| Sept. 11 | Partly cloudy | 26° /12° | 0 mm | 7 | |
| Sept. 12 | Sunny | 25° /12° | 0 mm | 6 | |
| Sept. 13 | Partly cloudy | 25° /14° | 21.1 mm | 4 | |
| Sept. 14 | Partly cloudy | 26° /15° | 0.1 mm | 6 | |
| Sept. 15 | Cloudy | 24° /13° | 0 mm | 6 | |
| Sept. 16 | Overcast | 25° /13° | 0 mm | 6 | |
| Sept. 17 | Mist | 23° /12° | 0 mm | 5 | |
| Sept. 18 | Sunny | 28° /18° | 0.8 mm | 6.4 | |
| Sept. 19 | Overcast | 20° /9° | 0 mm | 6.1 | |
| Sept. 20 | Overcast | 18° /10° | 32 mm | 0.6 | |
| Sept. 21 | Overcast | 20° /8° | 0 mm | 4.4 | |
| Sept. 22 | Overcast | 14° /11° | 22.1 mm | 3 | |
| Sept. 23 | Fog | 14° /11° | 28.1 mm | 3 | |
| Sept. 24 | Fog | 18° /13° | 4 mm | 4 | |
| Sept. 25 | Sunny | 20° /10° | 6 mm | 5 | |
| Sept. 26 | Sunny | 15° /7° | 0 mm | 4 | |
| Sept. 27 | Sunny | 21° /7° | 0 mm | 6 | |
| Sept. 28 | Sunny | 25° /12° | 0 mm | 6 | |
| Sept. 29 | Overcast | 26° /15° | 0 mm | 7 | |
| Sept. 30 | Sunny | 23° /15° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Hartford County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Hartford County forecast closer to your planned date for the most up-to-date weather information.
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Hartford County in September - FAQ
What are the expected maximum and minimum temperatures in Hartford County during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Hartford County during September?
Significant rainfall exceeding 125.5 mm is expected in Hartford County during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hartford County during September?
The average wind speed in Hartford County during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Hartford County
Explore the daily rainfall trends and prepare for Hartford Countys September weather 💧
Typically, Hartford County has 10 rainy days in September with a total of 125.5 mm of rainfall.
UV exposure in Hartford County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Hartford County?Get accurate weather forecasts for Hartford County, located at latitude 41.764 and longitude -72.685. Stay updated with localized weather information tailored for Hartford County.
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