Dauphin County (Harrisburg)
May
Weather in Dauphin County, Pennsylvania for May 2026
Your guide to Dauphin County weather in May - trends and predictions
In general, the average temperature in Dauphin County at the beginning of May is 21.3 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 21.7 °F by the end of May.
Dauphin County experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 272.1 mm.
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Temperatures
Rain 🌧️
More
9
Dry days
22
Rainy days
0
Snow days
20°/12°
Temperatures
16 km/h
Avg max wind
79 %
Avg humidity
Dauphin County Weather May
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Temperatures trend during May in Dauphin County
See the weather trend as well as the moving average line
May weather in Dauphin County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 22° /12° | 0.1 mm | 5 | |
| May 2 |  Overcast | 26° /13° | 0 mm | 6 | |
| May 3 |  Partly cloudy | 25° /13° | 0 mm | 6 | |
| May 4 |  Light rain | 17° /12° | 42 mm | 4 | |
| May 5 | Light rain | 16° /13° | 39.1 mm | 4 | |
| May 6 |  Fog | 21° /14° | 6 mm | 5 | |
| May 7 | Light rain shower | 22° /13° | 5.2 mm | 5 | |
| May 8 | Fog | 25° /14° | 3 mm | 6 | |
| May 9 | Light rain shower | 14° /10° | 13.3 mm | 4 | |
| May 10 | Light rain | 17° /8° | 7.4 mm | 5 | |
| May 11 | Light rain shower | 18° /10° | 2.4 mm | 5 | |
| May 12 | Light rain shower | 18° /9° | 2.1 mm | 4 | |
| May 13 | Fog | 20° /10° | 9.1 mm | 5 | |
| May 14 | Light rain shower | 18° /12° | 27 mm | 4 | |
| May 15 | Light rain | 20° /14° | 8.8 mm | 5 | |
| May 16 | Patchy rain possible | 23° /13° | 4.5 mm | 5 | |
| May 17 | Patchy rain possible | 24° /14° | 0.3 mm | 6 | |
| May 18 | Patchy rain possible | 18° /13° | 0.3 mm | 5 | |
| May 19 | Patchy rain possible | 22° /11° | 0.1 mm | 5 | |
| May 20 | Fog | 20° /10° | 0 mm | 5 | |
| May 21 | Mist | 20° /11° | 30.6 mm | 5 | |
| May 22 |  Thundery outbreaks possible | 21° /11° | 8.7 mm | 5 | |
| May 23 | Light rain shower | 19° /12° | 5.5 mm | 5 | |
| May 24 |  Sunny | 21° /11° | 0.1 mm | 6 | |
| May 25 |  Patchy light rain with thunder | 24° /11° | 2.5 mm | 6 | |
| May 26 | Thundery outbreaks possible | 24° /13° | 0.8 mm | 6 | |
| May 27 | Light rain shower | 23° /14° | 14.4 mm | 6 | |
| May 28 | Light rain shower | 19° /11° | 23.5 mm | 4 | |
| May 29 | Patchy light rain with thunder | 21° /11° | 5.5 mm | 5 | |
| May 30 | Partly cloudy | 20° /13° | 8 mm | 6 | |
| May 31 | Sunny | 21° /10° | 1.6 mm | 6 | |
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Important Notice
Our weather forecast for Dauphin County in May 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.
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Dauphin County in May - FAQ
What are the expected maximum and minimum temperatures in Dauphin County during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Dauphin County during May?
Significant rainfall exceeding 272.1 mm is expected in Dauphin County during May, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Dauphin County during May?
The average wind speed in Dauphin County during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Dauphin County
Explore the daily rainfall trends and prepare for Dauphin Countys May weather 💧
UV exposure in Dauphin County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Dauphin County?Get accurate weather forecasts for Dauphin County, located at latitude 40.274 and longitude -76.884. Stay updated with localized weather information tailored for Dauphin County.
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