New Haven County (New Haven)
May
Weather in New Haven County, Connecticut for May 2027
Your guide to New Haven County weather in May - trends and predictions
In general, the average temperature in New Haven County at the beginning of May is 17.1 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 19.5 °C by the end of May.
The climate of New Haven County in May is notably wet, with an average of 14 rainy days, and a total of 231.3 mm of precipitation.
Is May a good time to visit New Haven County? check out the best time to travel to New Haven County page.
✨ Is May a good time to visit New Haven County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
17
Dry days
14
Rainy days
0
Snow days
18°/11°
Temperatures
20 km/h
Avg max wind
77 %
Avg humidity
New Haven County Weather May
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Temperatures trend during May in New Haven County
See the weather trend as well as the moving average line
May weather in New Haven County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Partly cloudy | 16° /8° | 0 mm | 7 | |
| May 2 |  Light rain | 18° /10° | 4.2 mm | 4 | |
| May 3 |  Patchy rain possible | 18° /9° | 1.3 mm | 7 | |
| May 4 | Light rain | 18° /10° | 4 mm | 7 | |
| May 5 |  Moderate rain | 18° /11° | 11.6 mm | 7 | |
| May 6 |  Heavy rain | 16° /12° | 31.6 mm | 5 | |
| May 7 | Patchy rain possible | 18° /11° | 2 mm | 6 | |
| May 8 | Light rain | 16° /9° | 3.1 mm | 6 | |
| May 9 | Moderate rain | 14° /9° | 17.7 mm | 3 | |
| May 10 | Light rain | 18° /10° | 2.7 mm | 4 | |
| May 11 | Partly cloudy | 17° /10° | 0 mm | 6 | |
| May 12 |  Sunny | 18° /8° | 0.4 mm | 8 | |
| May 13 |  Overcast | 17° /11° | 0 mm | 5 | |
| May 14 | Moderate rain | 16° /11° | 10.2 mm | 4 | |
| May 15 | Light rain | 17° /11° | 4.4 mm | 7 | |
| May 16 | Light rain | 20° /11° | 6.8 mm | 7 | |
| May 17 |  Fog | 22° /15° | 0 mm | 7 | |
| May 18 | Overcast | 21° /15° | 0 mm | 7 | |
| May 19 |  Cloudy | 24° /14° | 0.4 mm | 7 | |
| May 20 | Light rain | 23° /13° | 4 mm | 7 | |
| May 21 | Light rain | 17° /11° | 7.6 mm | 5 | |
| May 22 | Moderate rain | 17° /11° | 20.6 mm | 6 | |
| May 23 |  Heavy rain at times | 15° /11° | 15.2 mm | 4 | |
| May 24 | Moderate rain | 17° /11° | 10.2 mm | 4 | |
| May 25 | Patchy rain possible | 19° /11° | 1.2 mm | 4 | |
| May 26 | Patchy rain possible | 21° /13° | 0.3 mm | 7 | |
| May 27 | Moderate rain | 20° /13° | 23.3 mm | 6 | |
| May 28 | Patchy rain possible | 20° /14° | 0.8 mm | 6 | |
| May 29 | Light rain | 20° /12° | 7.9 mm | 6 | |
| May 30 |  Moderate rain at times | 16° /11° | 6.1 mm | 6 | |
| May 31 | Heavy rain | 20° /10° | 33.6 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for New Haven 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 New Haven County forecast closer to your planned date for the most up-to-date weather information.
Change Month
New Haven County in May - FAQ
What are the expected maximum and minimum temperatures in New Haven County during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in New Haven County during May?
Significant rainfall exceeding 231.3 mm is expected in New Haven County during May, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Haven County during May?
The average wind speed in New Haven County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in New Haven County
Explore the daily rainfall trends and prepare for New Haven Countys May weather 💧
Typically, New Haven County has 14 rainy days in May with a total of 231.3 mm of rainfall.
UV exposure in New Haven County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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