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
The onset of May brings a distinct rise in the average high-temperature, advancing from a frosty 45.9°F (7.7°C) in April to a comfortable 60.8°F (16°C). Houlton usually reports an average low-temperature of 40.8°F (4.9°C) during the month of May.Humidity
May is the least humid month in Houlton, with an average relative humidity of 76%.Rainfall
In Houlton, in May, it is raining for 16.9 days, with typically 2.72" (69mm) of accumulated precipitation. In Houlton, during the entire year, the rain falls for 147.4 days and collects up to 31.81" (808mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.8 snowfall days, in May, Houlton aggregates 1.18" (30mm) of snow. Throughout the year, in Houlton, there are 88.2 snowfall days, and 62.83" (1596mm) of snow is accumulated.Daylight
In Houlton, the average length of the day in May is 14h and 59min.On the first day of the month, sunrise is at 5:16 am and sunset at 7:40 pm. On the last day of May, sunrise is at 4:43 am and sunset at 8:14 pm EDT.
Sunshine
The average sunshine in May is 7.4h.UV index
In Houlton, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 4 suggests these recommendations:
Take necessary precautions - Defending against sun damage is advocated. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Houlton in May?
What is the least humid month?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Houlton have in May?
How high is the UV index in May?
Average temperature in May
Houlton, ME
- Average high temperature in May: 60.8°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in May: 40.8°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in May
Houlton, ME
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Houlton, ME
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Houlton, ME
- Average humidity in May: 76%
The months with the highest relative humidity are January, February and March (91%).
The month with the lowest relative humidity is May (76%).
Average rainfall in May
Houlton, ME
- Average rainfall in May: 2.72"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (2.17").
Average rainfall days in May
Houlton, ME
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Houlton, ME
- Average snowfall in May: 1.18"
The months with the highest snowfall are January and February (13.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Houlton, ME
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is February (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Houlton, ME
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 7h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in May
Houlton, ME
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is April (8.7 days).
Average UV index in May
Houlton, ME
- 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, March, November and December (UV index 1).
Average cloud cover in May
Houlton, ME
- Average cloud cover in May: 53
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in May
Houlton, ME
- 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).
Houlton, Maine, USA
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