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
Observing a rise in May, the average high-temperature goes from April's subzero cold 27.3°F (-2.6°C) to a wintry 38.5°F (3.6°C). Throughout May, Port Safety's nights experience a slight temperature dip to a still icy 32.4°F (0.2°C).Humidity
The average relative humidity in May is 82%.Rainfall
May is the month with the least rainfall. Rain falls for 7.4 days and accumulates 0.71" (18mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 4.2 snowfall days, in May, Port Safety aggregates 0.94" (24mm) of snow. Throughout the year, there are 65.1 snowfall days, and 25" (635mm) of snow is accumulated.Daylight
The average length of the day in May is 18h and 40min.On the first day of the month, sunrise is at 6:24 am and sunset at 11:27 pm. On the last day of May, sunrise is at 4:47 am and sunset at 1:06 am AKDT.
Sunshine
May has the most sunshine of the year, with an average of 7.2h of sunshine.UV index
May through August, with an average maximum UV index of 3, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 3 suggests this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in May?
What is the average humidity in May?
What is the driest month?
How much 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?
What month has the most sunshine?
How many hours of sunshine does Port Safety have in May?
What are the months with the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Port Safety, AK
- Average high temperature in May: 38.5°F
The warmest month (with the highest average high temperature) is July (54.3°F).
The month with the lowest average high temperature is January (10.4°F).
- Average low temperature in May: 32.4°F
The months with the highest average low temperature are July and August (48.7°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).
Average pressure in May
Port Safety, AK
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is May (29.94"Hg).
The month with the lowest atmospheric pressure is October (29.7"Hg).
Average wind speed in May
Port Safety, AK
- Average wind speed in May: 8mph
The windiest month (with the highest average wind speed) is November (13.2mph).
The calmest month (with the lowest average wind speed) is May (8mph).
Average humidity in May
Port Safety, AK
- Average humidity in May: 82%
The months with the highest relative humidity are February and March (89%).
The month with the lowest relative humidity is June (76%).
Average rainfall in May
Port Safety, AK
- Average rainfall in May: 0.71"
The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is May (0.71").
Average rainfall days in May
Port Safety, AK
- Average rainfall days in May: 7.4 days
The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in May
Port Safety, AK
- Average snowfall in May: 0.94"
The month with the highest snowfall is March (5.08").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Port Safety, AK
- Average snowfall days in May: 4.2 days
The month with the highest number of snowfall days is December (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Port Safety, AK
- Average daylight in May: 18h and 4min
The month with the longest days is June (Average daylight: 21h and 6min).
The month with the shortest days is December (Average daylight: 4h and 12min).
- Average sunshine in May: 7h and 1min
The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).
Average sunshine days in May
Port Safety, AK
- Average sunshine days in May: 19.4 days
The month with the most sunshine days is March (20.8 days).
The month with the least sunshine days is August (13.6 days).
Average UV index in May
Port Safety, AK
- Average UV index in May: 3
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, October, November and December (UV index 1).
Average cloud cover in May
Port Safety, AK
- Average cloud cover in May: 51
The month with the most cloud cover is July (Cloud cover 60).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in May
Port Safety, AK
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Port Safety, Alaska, USA
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