Dauphin County (Harrisburg)
September
Weather in Dauphin County, Pennsylvania for September 2027
Your guide to Dauphin County weather in September - trends and predictions
In general, the average temperature in Dauphin County at the beginning of September is 26.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.3 °C by the end of September.
Dauphin County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 189.9 mm.
Is September a good time to visit Dauphin County? check out the best time to travel to Dauphin County page.
✨ Is September a good time to visit Dauphin County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
24°/15°
Temperatures
14 km/h
Avg max wind
73 %
Avg humidity
Dauphin County Weather September
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Temperatures trend during September in Dauphin County
See the weather trend as well as the moving average line
September weather in Dauphin County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Fog | 29° /18° | 0.4 mm | 5 | |
| Sept. 2 |  Heavy rain | 25° /16° | 49.9 mm | 5 | |
| Sept. 3 |  Moderate rain | 27° /15° | 10.2 mm | 4 | |
| Sept. 4 | Moderate rain | 28° /15° | 17 mm | 6 | |
| Sept. 5 |  Patchy rain possible | 27° /16° | 1.5 mm | 6 | |
| Sept. 6 | Light rain shower | 26° /15° | 0.4 mm | 6 | |
| Sept. 7 |  Patchy light rain | 23° /13° | 1.8 mm | 6 | |
| Sept. 8 |  Sunny | 24° /9° | 0 mm | 6 | |
| Sept. 9 |  Partly cloudy | 27° /12° | 0.1 mm | 6 | |
| Sept. 10 | Sunny | 26° /14° | 0.1 mm | 5 | |
| Sept. 11 | Sunny | 27° /15° | 0.2 mm | 6 | |
| Sept. 12 | Sunny | 27° /14° | 0 mm | 6 | |
| Sept. 13 | Light rain | 27° /15° | 5 mm | 5 | |
| Sept. 14 | Partly cloudy | 27° /15° | 0.1 mm | 7 | |
| Sept. 15 | Partly cloudy | 26° /14° | 0 mm | 7 | |
| Sept. 16 |  Overcast | 27° /14° | 0 mm | 6 | |
| Sept. 17 | Patchy rain possible | 22° /17° | 1.1 mm | 4 | |
| Sept. 18 | Mist | 25° /17° | 0.1 mm | 5 | |
| Sept. 19 | Overcast | 26° /15° | 0.1 mm | 4 | |
| Sept. 20 | Light rain | 23° /16° | 8.3 mm | 4 | |
| Sept. 21 |  Moderate or heavy rain shower | 20° /15° | 8.8 mm | 4 | |
| Sept. 22 |  Thundery outbreaks possible | 20° /14° | 6.8 mm | 4 | |
| Sept. 23 | Overcast | 22° /14° | 0 mm | 5 | |
| Sept. 24 | Light rain | 20° /14° | 9.1 mm | 4 | |
| Sept. 25 | Moderate rain | 22° /14° | 14.1 mm | 5 | |
| Sept. 26 | Light rain | 23° /16° | 9.4 mm | 5 | |
| Sept. 27 | Light rain | 20° /15° | 6.6 mm | 4 | |
| Sept. 28 | Moderate rain | 20° /16° | 13.1 mm | 3 | |
| Sept. 29 |  Heavy rain at times | 21° /16° | 10.8 mm | 4 | |
| Sept. 30 | Moderate rain | 22° /15° | 15 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Dauphin 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 Dauphin County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Dauphin County in September - FAQ
What are the expected maximum and minimum temperatures in Dauphin County during September?
During September, expect a variety of temperatures with highs around 24° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Dauphin County during September?
Significant rainfall exceeding 189.9 mm is expected in Dauphin 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 Dauphin County during September?
The average wind speed in Dauphin County during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Dauphin County
Explore the daily rainfall trends and prepare for Dauphin Countys September weather 💧
Typically, Dauphin County has 10 rainy days in September with a total of 189.9 mm of rainfall.
UV exposure in Dauphin County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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