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 signals a significant increase in average high-temperatures, soaring from April's chilly 46.9°F (8.3°C) to a comfortable 62.6°F (17°C). Derby Line experiences a consistent average temperature of 42.3°F (5.7°C) throughout the nights in May.Humidity
With an average relative humidity of 77%, May is the least humid month in Derby Line.Rainfall
In Derby Line, Vermont, during May, the rain falls for 18.1 days and regularly aggregates up to 2.99" (76mm) of precipitation. In Derby Line, Vermont, during the entire year, the rain falls for 166.1 days and collects up to 33.07" (840mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Derby Line. May is the last month it regularly snows in Derby Line. During 1 snowfall days, in May, Derby Line aggregates 1.5" (38mm) of snow. In Derby Line, during the entire year, snow falls for 115.7 days and aggregates up to 66.57" (1691mm) of snow.Daylight
In May, the average length of the day is 14h and 52min.On the first day of May, sunrise is at 5:36 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 8:27 pm EDT.
Sunshine
The average sunshine in May in Derby Line is 7.7h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 4 in May leads to these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Experience reduced UV exposure by about half when donning a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What is the average May temperature in Derby Line?
What is the least humid month in Derby Line?
What is the average humidity in May in Derby Line?
How many days does it rain in May in Derby Line?
What is the last month it snows in Derby Line?
What is the average length of the day in May in Derby Line?
What time are sunrise and sunset in May in Derby Line?
How many hours of sunshine does Derby Line have in May?
What is the UV index intensity in May in Derby Line?
Average temperature in May
Derby Line, VT
- Average high temperature in May: 62.6°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in May: 42.3°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in May
Derby Line, VT
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Derby Line, VT
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Derby Line, VT
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in May
Derby Line, VT
- Average rainfall in May: 2.99"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (2.28").
Average rainfall days in May
Derby Line, VT
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is June (20.1 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in May
Derby Line, VT
- Average snowfall in May: 1.5"
The month with the highest snowfall is February (14.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Derby Line, VT
- Average snowfall days in May: 1 days
The month with the highest number of snowfall days is January (24 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Derby Line, VT
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 2h and 0min).
Average sunshine days in May
Derby Line, VT
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (4.3 days).
Average UV index in May
Derby Line, 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, February and December (UV index 1).
Average cloud cover in May
Derby Line, VT
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in May
Derby Line, 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).
Derby Line, Vermont, USA
Weather forecast for your location
2. Allow the app to use your location
