Washington County (Johnson City)
May
Weather in Washington County, Tennessee for May 2027
Your guide to Washington County weather in May - trends and predictions
Washington County in May brings notable rainfall, with an average of 17 rainy days and a total precipitation of 143.1 mm.
Is May a good time to visit Washington County? check out the best time to travel to Washington County page.
✨ Is May a good time to visit Washington County? – Ask the AI Weatherman
Rain 🌧️
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14
Dry days
17
Rainy days
0
Snow days
22°/12°
Temperatures
15 km/h
Avg max wind
74 %
Avg humidity
Washington County Weather May
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Temperatures trend during May in Washington County
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May weather in Washington County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 21° /11° | 0.8 mm | 9 | |
| May 2 | Patchy rain possible | 20° /10° | 1.8 mm | 9 | |
| May 3 |  Light rain | 20° /10° | 3 mm | 7 | |
| May 4 | Patchy rain possible | 20° /7° | 1.4 mm | 7 | |
| May 5 | Patchy rain possible | 19° /9° | 0.3 mm | 8 | |
| May 6 |  Moderate rain | 19° /11° | 12.5 mm | 5 | |
| May 7 | Light rain | 17° /10° | 3 mm | 4 | |
| May 8 | Light rain | 21° /8° | 4.6 mm | 8 | |
| May 9 | Patchy rain possible | 21° /10° | 1.6 mm | 8 | |
| May 10 |  Overcast | 23° /9° | 0.1 mm | 8 | |
| May 11 |  Moderate rain at times | 20° /11° | 5.7 mm | 7 | |
| May 12 | Moderate rain | 21° /10° | 18.8 mm | 8 | |
| May 13 | Moderate rain | 21° /13° | 12.1 mm | 8 | |
| May 14 | Patchy rain possible | 19° /10° | 1.7 mm | 8 | |
| May 15 |  Cloudy | 25° /9° | 0.8 mm | 9 | |
| May 16 | Patchy rain possible | 26° /15° | 0.4 mm | 9 | |
| May 17 | Light rain | 28° /16° | 3.4 mm | 9 | |
| May 18 | Overcast | 28° /16° | 0.1 mm | 9 | |
| May 19 | Light rain | 27° /16° | 3.2 mm | 8 | |
| May 20 | Patchy rain possible | 29° /16° | 1.4 mm | 9 | |
| May 21 | Moderate rain | 23° /16° | 11.9 mm | 5 | |
| May 22 | Patchy rain possible | 23° /14° | 1 mm | 9 | |
| May 23 | Patchy rain possible | 21° /13° | 1.3 mm | 6 | |
| May 24 | Light rain | 23° /12° | 3 mm | 7 | |
| May 25 | Light rain | 23° /16° | 7.3 mm | 6 | |
| May 26 | Light rain | 21° /16° | 5.3 mm | 4 | |
| May 27 | Light rain | 21° /16° | 3.6 mm | 4 | |
| May 28 | Light rain | 23° /15° | 9.4 mm | 5 | |
| May 29 | Patchy rain possible | 24° /13° | 2.4 mm | 9 | |
| May 30 | Moderate rain | 25° /15° | 21.8 mm | 8 | |
| May 31 | Overcast | 25° /13° | 0.1 mm | 9 | |
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Important Notice
Our weather forecast for Washington 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 Washington County forecast closer to your planned date for the most up-to-date weather information.
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Washington County in May - FAQ
What are the expected maximum and minimum temperatures in Washington County during May?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Washington County during May?
Significant rainfall exceeding 143.1 mm is expected in Washington County during May, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Washington County during May?
The average wind speed in Washington County during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Washington County
Explore the daily rainfall trends and prepare for Washington Countys May weather 💧
Typically, Washington County has 17 rainy days in May with a total of 143.1 mm of rainfall.
UV exposure in Washington County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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