Jefferson County (Watertown)
May
Weather in Jefferson County, New York for May 2027
Your guide to Jefferson County weather in May - trends and predictions
In general, the average temperature in Jefferson County at the beginning of May is 13.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 17.9 °C by the end of May.
Jefferson County in May brings notable rainfall, with an average of 16 rainy days and a total precipitation of 155.7 mm.
Is May a good time to visit Jefferson County? check out the best time to travel to Jefferson County page.
✨ Is May a good time to visit Jefferson County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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15
Dry days
16
Rainy days
0
Snow days
16°/8°
Temperatures
18 km/h
Avg max wind
82 %
Avg humidity
Jefferson County Weather May
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Temperatures trend during May in Jefferson County
See the weather trend as well as the moving average line
May weather in Jefferson County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Fog | 12° /2° | 0.2 mm | 3 | |
| May 2 |  Light rain | 11° /7° | 5.3 mm | 4 | |
| May 3 |  Overcast | 13° /5° | 0.1 mm | 5 | |
| May 4 | Light rain | 16° /8° | 2.1 mm | 3 | |
| May 5 | Light rain | 16° /9° | 4.3 mm | 3 | |
| May 6 | Light rain | 15° /9° | 5.5 mm | 4 | |
| May 7 | Light rain | 14° /6° | 5.3 mm | 5 | |
| May 8 | Light rain | 11° /5° | 5.9 mm | 5 | |
| May 9 |  Patchy rain possible | 11° /4° | 1.5 mm | 4 | |
| May 10 | Light rain shower | 14° /4° | 1.4 mm | 5 | |
| May 11 | Light rain shower | 12° /4° | 2.3 mm | 5 | |
| May 12 | Light rain | 14° /4° | 1 mm | 6 | |
| May 13 | Light rain | 17° /9° | 6.9 mm | 3 | |
| May 14 | Light rain | 15° /10° | 7.1 mm | 3 | |
| May 15 | Light rain | 18° /11° | 4.7 mm | 4 | |
| May 16 | Light rain shower | 20° /11° | 1.2 mm | 6 | |
| May 17 |  Heavy rain | 20° /12° | 41 mm | 6 | |
| May 18 | Light rain | 19° /12° | 6 mm | 5 | |
| May 19 | Patchy rain possible | 19° /11° | 2.4 mm | 5 | |
| May 20 | Light rain | 17° /8° | 2.8 mm | 6 | |
| May 21 | Patchy rain possible | 17° /12° | 1.6 mm | 4 | |
| May 22 |  Moderate rain | 18° /8° | 11 mm | 6 | |
| May 23 | Light rain | 15° /8° | 5.6 mm | 3 | |
| May 24 | Light rain | 13° /8° | 6.7 mm | 3 | |
| May 25 | Light rain | 18° /8° | 6.9 mm | 4 | |
| May 26 | Fog | 19° /10° | 0 mm | 6 | |
| May 27 | Light rain | 20° /11° | 5.8 mm | 5 | |
| May 28 | Light rain shower | 18° /10° | 2 mm | 5 | |
| May 29 | Light rain | 15° /9° | 4 mm | 5 | |
| May 30 |  Sunny | 18° /9° | 0 mm | 6 | |
| May 31 | Light rain | 17° /7° | 4.9 mm | 6 | |
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Important Notice
Our weather forecast for Jefferson 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 Jefferson County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Jefferson County in May - FAQ
What are the expected maximum and minimum temperatures in Jefferson County during May?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Jefferson County during May?
Significant rainfall exceeding 155.7 mm is expected in Jefferson County during May, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jefferson County during May?
The average wind speed in Jefferson County during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Jefferson County
Explore the daily rainfall trends and prepare for Jefferson Countys May weather 💧
Typically, Jefferson County has 16 rainy days in May with a total of 155.7 mm of rainfall.
UV exposure in Jefferson County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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