May weather forecastWaterbury, VT
May
Weather in May
Migrating from April, the climate in May sees yet another transformation. The sun shines longer, with daylight stretching to 14.8 hours and brightening the city of Waterbury. The temperature climbs to a comfortable 64°F (17.8°C), encouraging outdoor activities. The shift from spring towards summer becomes evident as the city dons a lush green canopy, and the sounds of summer start to resonate.Temperature
May marks a distinct rise in the average high-temperature, ascending from April's chilly 48.6°F (9.2°C) to a refreshing 64°F (17.8°C). Waterbury observes an average low-temperature of 42.8°F (6°C) during May.Humidity
With an average relative humidity of 76%, May is the least humid month.Rainfall
In Waterbury, in May, during 17.8 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 174.1 rainfall days, and 30.67" (779mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.8 snowfall days, in May, Waterbury aggregates 0.83" (21mm) of snow. In Waterbury, during the entire year, snow falls for 100 days and aggregates up to 52.87" (1343mm) of snow.Daylight
In Waterbury, the average length of the day in May is 14h and 48min.On the first day of May in Waterbury, sunrise is at 5:40 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:27 pm EDT.
Sunshine
In May, the average sunshine is 7.9h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In May, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Waterbury, VT
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in May: 42.8°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in May
Waterbury, VT
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Waterbury, VT
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Waterbury, VT
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in May
Waterbury, VT
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is June (3.31").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in May
Waterbury, VT
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is June (19.1 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in May
Waterbury, VT
- Average snowfall in May: 0.83"
The month with the highest snowfall is February (11.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Waterbury, VT
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Waterbury, VT
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 7h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in May
Waterbury, VT
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (4.8 days).
Average UV index in May
Waterbury, VT
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Waterbury, VT
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in May
Waterbury, VT
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).





