May weather forecastSterling, AK
May
Weather in May
May, the last month of the spring in Sterling, is a mild month, with an average temperature fluctuating between 55.4°F (13°C) and 40.1°F (4.5°C).Temperature
As May arrives, Sterling's weather shows an increase in high-temperatures, moving from April's icy 42.1°F (5.6°C) to a moderate 55.4°F (13°C). Sterling observes an average low-temperature of 40.1°F (4.5°C) during May nights.Humidity
May is the least humid month, with an average relative humidity of 64%.Rainfall
May is the month with the least rainfall in Sterling. Rain falls for 11.7 days and accumulates 0.55" (14mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Sterling aggregates 0.04" (1mm) of snow. In Sterling, during the entire year, snow falls for 65.1 days and aggregates up to 23.27" (591mm) of snow.Daylight
In May, the average length of the day is 17h and 22min.On the first day of May, sunrise is at 5:54 am and sunset at 10:05 pm. On the last day of the month, sunrise is at 4:46 am and sunset at 11:15 pm AKDT.
Sunshine
In May, the average sunshine is 10.3h.UV index
In May, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 during May leads to these advisories:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sterling, AK
- Average high temperature in May: 55.4°F
The warmest month (with the highest average high temperature) is July (66.2°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in May: 40.1°F
The month with the highest average low temperature is July (50°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in May
Sterling, AK
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.64"Hg).
Average wind speed in May
Sterling, AK
- Average wind speed in May: 5.1mph
The windiest months (with the highest average wind speed) are November and December (6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in May
Sterling, AK
- Average humidity in May: 64%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (64%).
Average rainfall in May
Sterling, AK
- Average rainfall in May: 0.55"
The wettest month (with the highest rainfall) is October (1.77").
The driest month (with the least rainfall) is May (0.55").
Average rainfall days in May
Sterling, AK
- Average rainfall days in May: 11.7 days
The month with the highest number of rainy days is September (17.3 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in May
Sterling, AK
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (5.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Sterling, AK
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is December (13.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Sterling, AK
- Average daylight in May: 17h and 24min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in May: 10h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in May
Sterling, AK
- Average sunshine days in May: 16.8 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is September (11 days).
Average UV index in May
Sterling, AK
- Average UV index in May: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February and November (UV index 1).
Average cloud cover in May
Sterling, AK
- Average cloud cover in May: 46
The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility in May
Sterling, 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 and March (4mi).
