Sussex County (Vernon Valley)
May
Weather in Sussex County, New Jersey for May 2026
Your guide to Sussex County weather in May - trends and predictions
Special Weather Statement - See hour by hour.
Expect cooler weather in the next days in Sussex County with the forecast suggesting a temperature of 16.8 °F, lower than the historical average.
In general, the average temperature in Sussex County at the beginning of May is 17.9 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 20.9 °F by the end of May.
Sussex County experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 381.7 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
8
Dry days
23
Rainy days
0
Snow days
18°/10°
Temperatures
16 km/h
Avg max wind
79 %
Avg humidity
Sussex County Weather May
Move between months or click on a day
Temperatures trend during May in Sussex County
See the weather trend as well as the moving average line
May weather in Sussex County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Cloudy | 16° /6° | 0.6 mm | 6 | |
| May 2 |  Mist | 19° /8° | 0.5 mm | 6 | |
| May 3 | Mist | 22° /12° | 11.4 mm | 5 | |
| May 4 |  Sunny | 18° /6° | 0 mm | 6.2 | |
| May 5 |  Patchy rain possible | 24° /11° | 0.2 mm | 6.8 | |
| May 6 |  Moderate rain | 17° /9° | 11.9 mm | 0.8 | |
| May 7 | Moderate rain | 9° /5° | 5.8 mm | 1.7 | |
| May 8 | Patchy rain possible | 15° /2° | 0.6 mm | 0.8 | |
| May 9 |  Partly cloudy | 16° /4° | 0 mm | 3 | |
| May 10 | Moderate rain | 15° /6° | 6.4 mm | 3 | |
| May 11 | Cloudy | 18° /9° | 0 mm | 3 | |
| May 12 | Patchy rain possible | 17° /6° | 0.1 mm | 3 | |
| May 13 | Patchy rain possible | 16° /10° | 0 mm | 3 | |
| May 14 | Partly cloudy | 21° /7° | 0 mm | 4 | |
| May 15 | Patchy rain possible | 19° /10° | 1.6 mm | 3 | |
| May 16 | Patchy rain possible | 14° /9° | 0 mm | 3 | |
| May 17 | Patchy rain possible | 22° /15° | 6.1 mm | 5 | |
| May 18 | Cloudy | 19° /11° | 0 mm | 5 | |
| May 19 | Mist | 20° /8° | 0 mm | 5 | |
| May 20 | Mist | 20° /8° | 0 mm | 5 | |
| May 21 | Mist | 19° /10° | 14.8 mm | 5 | |
| May 22 | Sunny | 18° /10° | 26.5 mm | 5 | |
| May 23 |  Patchy light rain with thunder | 19° /11° | 3.8 mm | 5 | |
| May 24 | Sunny | 19° /10° | 0.1 mm | 5 | |
| May 25 | Cloudy | 23° /10° | 1 mm | 5 | |
| May 26 | Patchy rain possible | 22° /12° | 1.2 mm | 5 | |
| May 27 | Light rain shower | 19° /13° | 10.2 mm | 5 | |
| May 28 | Fog | 20° /13° | 0.1 mm | 5 | |
| May 29 | Light rain shower | 22° /11° | 8.9 mm | 5 | |
| May 30 | Light rain shower | 20° /12° | 17.7 mm | 5 | |
| May 31 | Patchy rain possible | 20° /8° | 18.4 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Sussex 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 Sussex County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Sussex County in May - FAQ
What are the expected maximum and minimum temperatures in Sussex County during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sussex County during May?
Significant rainfall exceeding 381.7 mm is expected in Sussex County during May, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sussex County during May?
The average wind speed in Sussex County during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Sussex County
Explore the daily rainfall trends and prepare for Sussex Countys May weather 💧
Typically, Sussex County has 23 rainy days in May with a total of 381.7 mm of rainfall.
UV exposure in Sussex County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Sussex County
Select a location for an accurate weather forecast
More Locations Quick links
More Sussex County weather pages
You are here
Where is Sussex County?Get accurate weather forecasts for Sussex County, located at latitude 41.237 and longitude -74.487. Stay updated with localized weather information tailored for Sussex County.
Found a mistake?
We appreciate your attention to details. Tell us here.