Franklin County (Tri-Cities)
May
Weather in Franklin County, Washington for May 2027
Your guide to Franklin County weather in May - trends and predictions
In general, the average temperature in Franklin County at the beginning of May is 25.1 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 26.4 °C by the end of May.
Franklin County experiences moderate rainfall in May, with an average of 6 rainy days and a total precipitation of 18.7 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
25
Dry days
6
Rainy days
0
Snow days
25°/11°
Temperatures
19 km/h
Avg max wind
49 %
Avg humidity
Franklin County Weather May
Move between months or click on a day
Temperatures trend during May in Franklin County
See the weather trend as well as the moving average line
May weather in Franklin County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 25° /10° | 0.4 mm | 6 | |
| May 2 |  Overcast | 28° /11° | 0 mm | 7 | |
| May 3 |  Partly cloudy | 26° /12° | 3.9 mm | 6 | |
| May 4 |  Sunny | 26° /10° | 0 mm | 6 | |
| May 5 | Sunny | 23° /10° | 2 mm | 6 | |
| May 6 | Overcast | 25° /9° | 0 mm | 6 | |
| May 7 | Patchy rain possible | 23° /10° | 0.1 mm | 6 | |
| May 8 | Overcast | 22° /9° | 1.9 mm | 5 | |
| May 9 | Overcast | 23° /9° | 0.3 mm | 6 | |
| May 10 | Sunny | 25° /10° | 0 mm | 7 | |
| May 11 | Sunny | 22° /11° | 1.1 mm | 6 | |
| May 12 | Overcast | 27° /10° | 0 mm | 7 | |
| May 13 |  Moderate or heavy rain shower | 23° /11° | 5.8 mm | 6 | |
| May 14 | Overcast | 25° /12° | 0 mm | 7 | |
| May 15 | Overcast | 23° /10° | 0.5 mm | 6 | |
| May 16 | Overcast | 23° /11° | 0.8 mm | 7 | |
| May 17 | Partly cloudy | 23° /10° | 0.1 mm | 7 | |
| May 18 | Sunny | 25° /10° | 0.1 mm | 7 | |
| May 19 | Sunny | 25° /10° | 0 mm | 7 | |
| May 20 | Patchy rain possible | 27° /12° | 0 mm | 7 | |
| May 21 | Patchy rain possible | 25° /11° | 0 mm | 6 | |
| May 22 | Sunny | 22° /10° | 1.5 mm | 6 | |
| May 23 |  Cloudy | 25° /9° | 0 mm | 6 | |
| May 24 | Sunny | 26° /10° | 0 mm | 7 | |
| May 25 | Sunny | 27° /12° | 0.1 mm | 7 | |
| May 26 | Overcast | 24° /11° | 0.3 mm | 6 | |
| May 27 | Partly cloudy | 27° /11° | 0 mm | 7 | |
| May 28 | Sunny | 30° /13° | 2 mm | 7 | |
| May 29 | Sunny | 24° /12° | 0 mm | 7 | |
| May 30 | Partly cloudy | 25° /9° | 0 mm | 7 | |
| May 31 | Sunny | 28° /11° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Franklin 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 Franklin County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Franklin County in May - FAQ
What are the expected maximum and minimum temperatures in Franklin County during May?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Franklin County during May?
Expect minimal rainfall in Franklin County during May, with a total of 18.7 mm over approximately 6 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Franklin County during May?
The average wind speed in Franklin County during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Franklin County
Explore the daily rainfall trends and prepare for Franklin Countys May weather 💧
Typically, Franklin County has 6 rainy days in May with a total of 18.7 mm of rainfall.
UV exposure in Franklin County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Franklin County
Select a location for an accurate weather forecast
More Locations Quick links
More Franklin County weather pages
You are here
Where is Franklin County?Get accurate weather forecasts for Franklin County, located at latitude 46.245 and longitude -119.196. Stay updated with localized weather information tailored for Franklin County.
Found a mistake?
We appreciate your attention to details. Tell us here.