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
As April transitions into May, Harrison sees a rise in the average high-temperature, moving from a frosty 49.8°F (9.9°C) to an enjoyable 63.5°F (17.5°C). Harrison observes an average nighttime low-temperature of 43.2°F (6.2°C) during the month of May.Humidity
In May, the average relative humidity is 77%.Rainfall
In May, in Harrison, Maine, the rain falls for 15.1 days. Throughout May, 2.09" (53mm) of precipitation is accumulated. In Harrison, during the entire year, the rain falls for 146 days and collects up to 27.91" (709mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Harrison. During 0.3 snowfall days, in May, Harrison aggregates 0.35" (9mm) of snow. In Harrison, during the entire year, snow falls for 55.1 days and aggregates up to 42.52" (1080mm) of snow.Daylight
In Harrison, the average length of the day in May is 14h and 47min.On the first day of May, sunrise is at 5:32 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:02 am and sunset at 8:18 pm EDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
In Harrison, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
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 are sunrise and sunset in May?
How many hours of sunshine does Harrison have in May?
How high is the UV index in May?
Average temperature in May
Harrison, ME
- Average high temperature in May: 63.5°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in May: 43.2°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Harrison, ME
- Average pressure in May: 29.98"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Harrison, ME
- Average wind speed in May: 5.6mph
The windiest months (with the highest average wind speed) are January, March and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
Harrison, ME
- Average humidity in May: 77%
The months with the highest relative humidity are January, February and March (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Harrison, ME
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in May
Harrison, ME
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in May
Harrison, ME
- Average snowfall in May: 0.35"
The month with the highest snowfall is February (10.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Harrison, ME
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Harrison, 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: 8h and 54min).
- Average sunshine in May: 8h and 1min
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 36min).
Average sunshine days in May
Harrison, ME
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in May
Harrison, ME
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Harrison, ME
- Average cloud cover in May: 48
The months with the most cloud cover are February, March and April (Cloud cover 50).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in May
Harrison, ME
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Harrison, Maine, USA
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