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
With the transition into May, Bristol experiences an increase in average high-temperatures, moving up from a frosty 49.1°F (9.5°C) in April to a mild 59.4°F (15.2°C). Bristol experiences a steady low-temperature of 45.5°F (7.5°C) throughout May.Humidity
In Bristol, Maine, the average relative humidity in May is 80%.Rainfall
In Bristol, Maine, during May, the rain falls for 14.9 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 142.1 rainfall days, and 30.51" (775mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows in Bristol. During 0.1 snowfall days, in May, Bristol aggregates 0.16" (4mm) of snow. In Bristol, during the entire year, snow falls for 40 days and aggregates up to 20.08" (510mm) of snow.Daylight
In Bristol, the average length of the day in May is 14h and 46min.On the first day of May, sunrise is at 5:28 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 4:58 am and sunset at 8:13 pm EDT.
Sunshine
In Bristol, the average sunshine in May is 8h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 4 during May translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Bristol in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Bristol have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Bristol have in May?
What is the UV index reading in May?
Average temperature in May
Bristol, ME
- Average high temperature in May: 59.4°F
The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 45.5°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Bristol, ME
- Average pressure in May: 29.99"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Bristol, ME
- Average wind speed in May: 8.1mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Bristol, ME
- Average humidity in May: 80%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Bristol, ME
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in May
Bristol, ME
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
Bristol, ME
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Bristol, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Bristol, ME
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in May
Bristol, ME
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in May
Bristol, ME
- Average UV index in May: 4
The month with the highest UV index is July (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
Bristol, ME
- Average cloud cover in May: 48
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Bristol, ME
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Bristol, Maine, USA
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