May weather forecastEast Haddam, CT
May
Weather in May
The last month of the spring, May, is a pleasant month in East Haddam, Connecticut, with an average temperature varying between 68°F (20°C) and 49.5°F (9.7°C).Temperature
With the onset of May, East Haddam sees a temperature rise, with the average high-temperature moving from April's moderate 56.7°F (13.7°C) to an agreeable 68°F (20°C). The temperature in East Haddam lowers to an average of 49.5°F (9.7°C) during May nights.Humidity
The average relative humidity in May is 76%.Rainfall
In May, in East Haddam, the rain falls for 10.9 days. Throughout May, 0.91" (23mm) of precipitation is accumulated. In East Haddam, during the entire year, the rain falls for 109.9 days and collects up to 11.14" (283mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, East Haddam aggregates 0.35" (9mm) of snow. In East Haddam, during the entire year, snow falls for 19.9 days and aggregates up to 3.7" (94mm) of snow.Daylight
In May, the average length of the day is 14h and 32min.On the first day of the month, sunrise is at 5:45 am and sunset at 7:48 pm. On the last day of May, sunrise is at 5:18 am and sunset at 8:16 pm EDT.
Sunshine
The average sunshine in May is 8h.UV index
In East Haddam, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
East Haddam, CT
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in May
East Haddam, CT
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
East Haddam, CT
- Average wind speed in May: 6.8mph
The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in May
East Haddam, CT
- Average humidity in May: 76%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
East Haddam, CT
- Average rainfall in May: 0.91"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in May
East Haddam, CT
- Average rainfall days in May: 10.9 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in May
East Haddam, CT
- Average snowfall in May: 0.35"
The month with the highest snowfall is March (1.14").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
East Haddam, CT
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
East Haddam, CT
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
East Haddam, CT
- Average sunshine days in May: 17.9 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (16.3 days).
Average UV index in May
East Haddam, CT
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
East Haddam, CT
- Average cloud cover in May: 50
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
East Haddam, CT
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July and August (5mi).





