May weather forecastWallingford, CT
May
Weather in May
The last month of the spring, May, is a pleasant month in Wallingford, Connecticut, with temperature in the range of an average high of 68.5°F (20.3°C) and an average low of 49.6°F (9.8°C).Temperature
The start of May signals an increase in the average high-temperature, moving from a refreshing 56.8°F (13.8°C) in April to an agreeable 68.5°F (20.3°C). During the nights in May, Wallingford experiences a consistent average temperature of 49.6°F (9.8°C).Humidity
The average relative humidity in May is 75%.Rainfall
In May, in Wallingford, the rain falls for 17.1 days. Throughout May, 2.68" (68mm) of precipitation is accumulated. Throughout the year, in Wallingford, there are 162.7 rainfall days, and 34.57" (878mm) of precipitation is accumulated.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, Wallingford aggregates 0.43" (11mm) of snow. In Wallingford, during the entire year, snow falls for 30 days and aggregates up to 15.28" (388mm) of snow.Daylight
In May, the average length of the day is 14h and 32min.On the first day of May, sunrise is at 5:47 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:18 pm EDT.
Sunshine
In May, the average sunshine in Wallingford is 8.2h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 5 during May translates into the following directions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Wallingford, CT
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in May
Wallingford, CT
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Wallingford, CT
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Wallingford, CT
- Average humidity in May: 75%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Wallingford, CT
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in May
Wallingford, CT
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in May
Wallingford, CT
- Average snowfall in May: 0.43"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Wallingford, CT
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Wallingford, 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 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Wallingford, CT
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Wallingford, 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
Wallingford, CT
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Wallingford, CT
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, August, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July and September (5mi).





