Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival sees a rise in the average high-temperature, jumping from April's moderate 56.7°F (13.7°C) to an agreeable 68°F (20°C). Haddam experiences an average low-temperature of 49.5°F (9.7°C) in month of May.Humidity
In Haddam, the average relative humidity in May is 76%.Rainfall
In Haddam, in May, it is raining for 10.9 days, with typically 0.91" (23mm) of accumulated precipitation. In Haddam, during the entire year, the rain falls for 109.9 days and collects up to 11.14" (283mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Haddam aggregates 0.35" (9mm) of snow. In Haddam, during the entire year, snow falls for 19.9 days and aggregates up to 3.7" (94mm) of snow.Daylight
The average length of the day in May 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 8:17 pm EDT.
Sunshine
In May, the average sunshine in Haddam is 8h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 during May translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows in Haddam?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
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
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
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
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
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
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
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
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
Haddam, CT
- Average daylight in May: 14h and 3min
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
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
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
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
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).
Haddam, Connecticut, USA
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