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 24.5 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.9 °C by the end of May.
With an average of 5 rainy days, Franklin County experiences minimal rainfall in May.
Is May a good time to visit Franklin County? check out the best time to travel to Franklin County page.
✨ Is May a good time to visit Franklin County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
26
Dry days
5
Rainy days
0
Snow days
24°/11°
Temperatures
19 km/h
Avg max wind
50 %
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 | 24° /10° | 0.4 mm | 6 | |
| May 2 |  Overcast | 28° /12° | 0 mm | 7 | |
| May 3 |  Light rain | 25° /12° | 3.9 mm | 6 | |
| May 4 |  Sunny | 25° /10° | 0 mm | 6 | |
| May 5 | Patchy rain possible | 22° /10° | 2 mm | 6 | |
| May 6 | Overcast | 24° /9° | 0 mm | 6 | |
| May 7 | Patchy rain possible | 22° /10° | 0.1 mm | 6 | |
| May 8 | Patchy rain possible | 21° /10° | 1.9 mm | 5 | |
| May 9 | Overcast | 23° /9° | 0.3 mm | 6 | |
| May 10 | Sunny | 25° /10° | 0 mm | 7 | |
| May 11 | Patchy rain possible | 22° /11° | 1.1 mm | 6 | |
| May 12 | Overcast | 26° /11° | 0 mm | 7 | |
| May 13 |  Moderate or heavy rain shower | 23° /11° | 5.8 mm | 6 | |
| May 14 | Overcast | 24° /12° | 0 mm | 7 | |
| May 15 | Overcast | 23° /11° | 0.5 mm | 6 | |
| May 16 | Overcast | 22° /11° | 0.8 mm | 7 | |
| May 17 |  Partly cloudy | 23° /11° | 0.1 mm | 7 | |
| May 18 | Sunny | 25° /11° | 0.1 mm | 7 | |
| May 19 | Sunny | 24° /11° | 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 | Patchy rain possible | 22° /11° | 1.5 mm | 6 | |
| May 23 |  Cloudy | 24° /10° | 0 mm | 6 | |
| May 24 | Sunny | 26° /10° | 0 mm | 7 | |
| May 25 | Sunny | 26° /13° | 0.1 mm | 7 | |
| May 26 | Overcast | 23° /11° | 0.3 mm | 6 | |
| May 27 | Partly cloudy | 26° /11° | 0 mm | 7 | |
| May 28 | Patchy rain possible | 30° /14° | 2 mm | 7 | |
| May 29 | Sunny | 24° /13° | 0 mm | 7 | |
| May 30 | Partly cloudy | 25° /10° | 0 mm | 7 | |
| May 31 | Sunny | 27° /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 24° 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?
In May, Franklin County can expect light to moderate rainfall, totaling 21 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.
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 5 rainy days in May with a total of 21 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
Found a mistake?
We appreciate your attention to details. Tell us here.