Lancaster County
May
Weather in Lancaster County for May 2025
Your guide to Lancaster County weather in May - trends and predictions
In general, the average temperature in Lancaster County at the beginning of May is 22 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 24.9 °F by the end of May.
Lancaster County sees moderate rainfall in May, averaging 9 rainy days.
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22
Dry days
9
Rainy days
0
Snow days
26°/11°
Temperatures
22 km/h
Avg max wind
69 %
Avg humidity
Lancaster County in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2 21° | 3 22° | 4  21° | |||
| 5  20° | 6 25° | 7 26° | 8 24° | 9 22° | 10 24° | 11 24° |
| 12  22° | 13  21° | 14 22° | 15 16° | 16  23° | 17 24° | 18 25° |
| 19 20° | 20 23° | 21 26° | 22 24° | 23 26° | 24 24° | 25 24° |
| 26  23° | 27 25° | 28 26° | 29 26° | 30 25° | 31 25° |
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Temperatures trend during May in Lancaster County
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Sunny | 19° /8° | 6.8 mm | 5 | |
| May 2 | Sunny | 21° /7° | 1.8 mm | 6 | |
| May 3 | Sunny | 22° /7° | 0.2 mm | 6 | |
| May 4 | Patchy rain possible | 21° /11° | 8.8 mm | 5 | |
| May 5 | Moderate rain at times | 20° /10° | 0.8 mm | 5 | |
| May 6 | Patchy rain possible | 25° /12° | 3.8 mm | 6 | |
| May 7 | Moderate rain at times | 26° /11° | 3.5 mm | 6 | |
| May 8 | Patchy rain possible | 24° /12° | 4.7 mm | 6 | |
| May 9 | Patchy rain possible | 22° /12° | 1.8 mm | 5 | |
| May 10 | Moderate or heavy rain shower | 24° /12° | 1.6 mm | 6 | |
| May 11 | Moderate rain at times | 24° /13° | 1.5 mm | 6 | |
| May 12 | Heavy rain at times | 22° /15° | 7.5 mm | 5 | |
| May 13 | Overcast | 21° /13° | 9.8 mm | 5 | |
| May 14 | Patchy rain possible | 22° /12° | 0.3 mm | 6 | |
| May 15 | Moderate or heavy rain shower | 16° /10° | 11.3 mm | 4 | |
| May 16 | Partly cloudy | 23° /12° | 0.8 mm | 6 | |
| May 17 | Sunny | 24° /12° | 0 mm | 7 | |
| May 18 | Patchy rain possible | 25° /13° | 1.6 mm | 6 | |
| May 19 | Partly cloudy | 20° /12° | 13.7 mm | 5 | |
| May 20 | Sunny | 23° /10° | 0.7 mm | 6 | |
| May 21 | Overcast | 26° /11° | 0.7 mm | 6 | |
| May 22 | Partly cloudy | 24° /11° | 0 mm | 7 | |
| May 23 | Partly cloudy | 26° /13° | 0.1 mm | 7 | |
| May 24 | Partly cloudy | 24° /13° | 12.6 mm | 6 | |
| May 25 | Heavy rain at times | 24° /13° | 2 mm | 6 | |
| May 26 | Cloudy | 23° /14° | 40.7 mm | 6 | |
| May 27 | Partly cloudy | 25° /12° | 0 mm | 6 | |
| May 28 | Partly cloudy | 26° /12° | 0.3 mm | 7 | |
| May 29 | Moderate rain at times | 26° /14° | 1.9 mm | 6 | |
| May 30 | Patchy rain possible | 25° /15° | 6 mm | 6 | |
| May 31 | Heavy rain at times | 25° /16° | 4.3 mm | 6 | |
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Important Notice
Our weather forecast for Lancaster 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 Lancaster County forecast closer to your planned date for the most up-to-date weather information.
Lancaster County in May - FAQ
What are the expected maximum and minimum temperatures in Lancaster County during May?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Lancaster County during May?
Significant rainfall exceeding 200.7 mm is expected in Lancaster County during May, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Lancaster County during May?
The average wind speed in Lancaster County during May is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Lancaster County
Explore the daily rainfall trends and prepare for Lancaster Countys May weather 💧
UV exposure in Lancaster County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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