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 marks a rise in the average high-temperature, moving from April's chilly 49.8°F (9.9°C) to a comfortable 60.8°F (16°C). In the month of May, the average low-temperature usually rests at a frosty 44.8°F (7.1°C).Humidity
In May, the average relative humidity is 80%.Rainfall
In Alna, in May, it is raining for 14.6 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 139 rainfall days, and 27.56" (700mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Alna aggregates 0.39" (10mm) of snow. In Alna, Maine, during the entire year, snow falls for 41.8 days and aggregates up to 21.97" (558mm) of snow.Daylight
In May, the average length of the day is 14h and 47min.On the first day of the month, sunrise is at 5:28 am and sunset at 7:42 pm. On the last day of May, in Alna, sunrise is at 4:58 am and sunset at 8:14 pm EDT.
Sunshine
The average sunshine in May in Alna is 8h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. It's recommended to limit sun exposure when its radiation is at its peak during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take to heart! Snow reflection can almost 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 temperature 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 Alna have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Alna have in May?
What is the UV index reading in May in Alna?
Average temperature in May
Alna, ME
- Average high temperature in May: 60.8°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in May: 44.8°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Alna, 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
Alna, ME
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in May
Alna, 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
Alna, ME
- Average rainfall in May: 2.13"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in May
Alna, ME
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in May
Alna, ME
- Average snowfall in May: 0.39"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Alna, ME
- Average snowfall days in May: 0.1 days
The months with the highest number of snowfall days are January and February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Alna, 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 0min
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
Alna, ME
- Average sunshine days in May: 14.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in May
Alna, 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
Alna, ME
- Average cloud cover in May: 49
The months with the most cloud cover are February, March and April (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Alna, ME
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, September, October, November and December (6mi).
The months with the lowest visibility are May, June, July and August (5mi).
Alna, Maine, USA
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