Ashburn (VA)
May
Weather in Ashburn, Virginia for May 2026
Your guide to Ashburn weather in May - trends and predictions
In general, the average temperature in Ashburn at the beginning of May is 23.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.9 °F by the end of May.
Ashburn in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 409.2 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
21°/13°
Temperatures
19 km/h
Avg max wind
77 %
Avg humidity
Ashburn Weather May
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Temperatures trend during May in Ashburn
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May weather in Ashburn day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Heavy rain at times | 26° /13° | 1.6 mm | 6 | |
| May 2 |  Cloudy | 28° /18° | 0 mm | 6 | |
| May 3 |  Moderate or heavy rain shower | 26° /17° | 17.4 mm | 6 | |
| May 4 | Moderate or heavy rain shower | 21° /17° | 19.1 mm | 5 | |
| May 5 | Moderate or heavy rain shower | 22° /16° | 25.2 mm | 5 | |
| May 6 | Moderate rain at times | 19° /15° | 1.2 mm | 4 | |
| May 7 |  Partly cloudy | 22° /14° | 0.2 mm | 6 | |
| May 8 | Moderate rain at times | 22° /13° | 4.8 mm | 5 | |
| May 9 | Moderate rain at times | 16° /10° | 5.8 mm | 4 | |
| May 10 |  Overcast | 21° /7° | 0 mm | 5 | |
| May 11 | Partly cloudy | 24° /10° | 0 mm | 6 | |
| May 12 | Overcast | 23° /12° | 3.1 mm | 5 | |
| May 13 | Moderate or heavy rain shower | 19° /16° | 55.9 mm | 4 | |
| May 14 |  Patchy rain possible | 24° /16° | 14.8 mm | 5 | |
| May 15 | Patchy rain possible | 26° /17° | 2.6 mm | 6 | |
| May 16 | Moderate or heavy rain shower | 30° /18° | 4.2 mm | 7 | |
| May 17 | Overcast | 28° /19° | 0 mm | 6 | |
| May 18 | Patchy rain possible | 24° /15° | 0.5 mm | 5 | |
| May 19 | Overcast | 21° /12° | 0 mm | 5 | |
| May 20 | Overcast | 18° /9° | 0.1 mm | 4 | |
| May 21 | Moderate or heavy rain shower | 14° /11° | 12.8 mm | 3 | |
| May 22 | Moderate or heavy rain shower | 18° /11° | 12.3 mm | 4 | |
| May 23 | Patchy rain possible | 17° /9° | 0.2 mm | 4 | |
| May 24 | Overcast | 19° /7° | 0 mm | 4 | |
| May 25 | Partly cloudy | 20° /7° | 0 mm | 6 | |
| May 26 | Overcast | 19° /11° | 0 mm | 4 | |
| May 27 | Moderate rain at times | 19° /11° | 9.2 mm | 4 | |
| May 28 |  Moderate rain | 12° /10° | 52.5 mm | 3 | |
| May 29 |  Fog | 23° /12° | 0 mm | 5 | |
| May 30 |  Moderate or heavy rain with thunder | 19° /15° | 116 mm | 4 | |
| May 31 |  Thundery outbreaks possible | 20° /12° | 49.7 mm | 5 | |
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Important Notice
Our weather forecast for Ashburn 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 Ashburn forecast closer to your planned date for the most up-to-date weather information.
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Ashburn in May - FAQ
What are the expected maximum and minimum temperatures in Ashburn during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Ashburn during May?
Significant rainfall exceeding 409.2 mm is expected in Ashburn during May, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Ashburn during May?
The average wind speed in Ashburn during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Ashburn
Explore the daily rainfall trends and prepare for Ashburns May weather 💧
UV exposure in Ashburn during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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