Connecticut
May
Weather in Connecticut for May 2025
Your guide to Connecticut weather in May - trends and predictions
In general, the average temperature in Connecticut at the beginning of May is 15.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.3 °F by the end of May.
Expect significant rainfall in Connecticut during May, with an average of 16 rainy days.
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15
Dry days
16
Rainy days
0
Snow days
18°/10°
Temperatures
17 km/h
Avg max wind
75 %
Avg humidity
Connecticut in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  13° | 2  21° | 3 14° | 4  13° | |||
| 5 10° | 6 18° | 7  20° | 8 18° | 9 18° | 10 10° | 11 12° |
| 12 9° | 13 15° | 14 18° | 15 18° | 16  13° | 17 19° | 18  19° |
| 19 18° | 20  16° | 21  20° | 22 22° | 23 20° | 24  22° | 25 20° |
| 26 22° | 27 20° | 28 24° | 29 22° | 30 19° | 31 22° |
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Temperatures trend during May in Connecticut
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Light drizzle | 13° /9° | 2.3 mm | 3 | |
| May 2 | Cloudy | 21° /9° | 0 mm | 5 | |
| May 3 | Cloudy | 14° /10° | 0 mm | 3 | |
| May 4 | Patchy rain possible | 13° /8° | 1.4 mm | 3 | |
| May 5 | Light rain | 10° /8° | 17.3 mm | 3 | |
| May 6 | Light rain shower | 18° /10° | 7.4 mm | 4 | |
| May 7 | Mist | 20° /14° | 0.4 mm | 5 | |
| May 8 | Light rain shower | 18° /13° | 7 mm | 4 | |
| May 9 | Light rain shower | 18° /12° | 4.9 mm | 4 | |
| May 10 | Light drizzle | 10° /8° | 3.8 mm | 3 | |
| May 11 | Patchy rain possible | 12° /6° | 0.2 mm | 3 | |
| May 12 | Light rain shower | 9° /7° | 4 mm | 2 | |
| May 13 | Patchy rain possible | 15° /7° | 0.3 mm | 4 | |
| May 14 | Light rain shower | 18° /11° | 5.8 mm | 4 | |
| May 15 | Patchy rain possible | 18° /14° | 0.5 mm | 4 | |
| May 16 | Moderate rain | 13° /12° | 23.7 mm | 3 | |
| May 17 | Patchy rain possible | 19° /13° | 0.2 mm | 4 | |
| May 18 | Partly cloudy | 19° /11° | 0 mm | 5 | |
| May 19 | Patchy rain possible | 18° /11° | 0 mm | 4 | |
| May 20 | Moderate or heavy rain shower | 16° /12° | 39.5 mm | 4 | |
| May 21 | Overcast | 20° /11° | 2.5 mm | 5 | |
| May 22 | Patchy rain possible | 22° /13° | 1.1 mm | 5 | |
| May 23 | Partly cloudy | 20° /13° | 6.2 mm | 5 | |
| May 24 | Sunny | 22° /12° | 0.8 mm | 6 | |
| May 25 | Sunny | 20° /11° | 0 mm | 5 | |
| May 26 | Sunny | 22° /12° | 1.1 mm | 6 | |
| May 27 | Sunny | 20° /12° | 7.1 mm | 5 | |
| May 28 | Sunny | 24° /14° | 0 mm | 6 | |
| May 29 | Sunny | 22° /14° | 3.3 mm | 6 | |
| May 30 | Sunny | 19° /11° | 0.6 mm | 5 | |
| May 31 | Sunny | 22° /9° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Connecticut 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 Connecticut forecast closer to your planned date for the most up-to-date weather information.
Connecticut in May - FAQ
What are the expected maximum and minimum temperatures in Connecticut 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 Connecticut during May?
Significant rainfall exceeding 137.5 mm is expected in Connecticut during May, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Connecticut during May?
The average wind speed in Connecticut during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
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