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 shift into May is characterized by a subtle rise in the average high-temperature, transitioning from April's icy 39.7°F (4.3°C) to a chilly 45.3°F (7.4°C). An average low-temperature of 41.5°F (5.3°C) is witnessed throughout the month of May, a mere drop from the daytime peak.Humidity
The average relative humidity in May is 83%.Rainfall
In May, the rain falls for 15.3 days. Throughout May, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Port Lions aggregates 0.08" (2mm) of snow. In Port Lions, during the entire year, snow falls for 35.1 days and aggregates up to 13.74" (349mm) of snow.Daylight
The average length of the day in May is 16h and 44min.On the first day of the month, sunrise is at 6:16 am and sunset at 10:00 pm. On the last day of May, sunrise is at 5:19 am and sunset at 10:59 pm AKDT.
Sunshine
The average sunshine in May is 6.9h.UV index
The average daily maximum UV index in May is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, the UV index of 2 transforms into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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 is the sunrise / sunset in May?
How many hours of sunshine does Port Lions have in May?
What is the UV index intensity in May?
Average temperature in May
Port Lions, AK
- Average high temperature in May: 45.3°F
The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 41.5°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).
Average pressure in May
Port Lions, AK
- Average pressure in May: 29.89"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).
Average wind speed in May
Port Lions, AK
- Average wind speed in May: 10.4mph
The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Port Lions, AK
- Average humidity in May: 83%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).
Average rainfall in May
Port Lions, AK
- Average rainfall in May: 2.72"
The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in May
Port Lions, AK
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).
Average snowfall in May
Port Lions, AK
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Port Lions, AK
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Port Lions, AK
- Average daylight in May: 16h and 4min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in May: 6h and 5min
The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).
Average sunshine days in May
Port Lions, AK
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in May
Port Lions, AK
- Average UV index in May: 2
The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Port Lions, AK
- Average cloud cover in May: 62
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).
Average visibility in May
Port Lions, AK
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Port Lions, Alaska, USA
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