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 sea temperature 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
Noticing a change, the average high-temperature in Haines during May moves from April's icy 35.2°F (1.8°C) to a frosty 46.2°F (7.9°C). During the nights in May, Haines experiences a consistent average temperature of 33.8°F (1°C).Humidity
May is the least humid month in Haines, Alaska, with an average relative humidity of 78%.Rainfall
In Haines, during May, the rain falls for 17.7 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 200.4 rainfall days, and 48.03" (1220mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Haines. May is the last month it regularly snows. During 0.5 snowfall days, in May, Haines aggregates 0.08" (2mm) of snow. In Haines, Alaska, during the entire year, snow falls for 83.4 days and aggregates up to 86.57" (2199mm) of snow.Ocean temperature
In Haines, the average seawater temperature in May is 43.3°F (6.3°C).Note: Without suitable protection, venturing into 43.3°F (6.3°C) waters cooler than 50°F (10°C) can lead to pronounced cold shock and rapid breaths.
Daylight
In Haines, the average length of the day in May is 17h and 2min.On the first day of May in Haines, sunrise is at 5:00 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 3:57 am and sunset at 10:01 pm AKDT.
Sunshine
In May, the average sunshine in Haines is 8.9h.UV index
The average daily maximum UV index in May in Haines is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during May translates into these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the temperature in May in Haines?
What is the least humid month in Haines?
What is the average humidity in May in Haines?
How much does it rain in Haines in May?
What is the last month it snows in Haines?
What is the water temperature in May in Haines?
What is the average length of the day in May in Haines?
When is the sunrise / sunset in May in Haines?
How long on average sun shines in May in Haines?
What is the UV index reading in May in Haines?
Average temperature in May
Haines, AK
- Average high temperature in May: 46.2°F
The warmest month (with the highest average high temperature) is July (56.5°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in May: 33.8°F
The month with the highest average low temperature is August (44.1°F).
The coldest month (with the lowest average low temperature) is February (12.4°F).
Average pressure in May
Haines, AK
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is July (30.01"Hg).
The month with the lowest atmospheric pressure is November (29.81"Hg).
Average wind speed in May
Haines, AK
- Average wind speed in May: 4.7mph
The windiest month (with the highest average wind speed) is January (6.7mph).
The calmest month (with the lowest average wind speed) is May (4.7mph).
Average humidity in May
Haines, AK
- Average humidity in May: 78%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).
Average rainfall in May
Haines, AK
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is November (5.87").
The driest month (with the least rainfall) is June (2.2").
Average rainfall days in May
Haines, AK
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is October (20.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in May
Haines, AK
- Average snowfall in May: 0.08"
The month with the highest snowfall is December (21.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Haines, AK
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is December (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Haines, AK
- Average sea temperature in May: 43.2°F
The best month for swimming (with the highest average sea temperature) is August (53.1°F).
The coldest month (with the lowest average sea temperature) is March (39.6°F).
Average daylight in May /
Average sunshine in May
Haines, AK
- Average daylight in May: 17h and 0min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in May
Haines, AK
- Average sunshine days in May: 10 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in May
Haines, AK
- Average UV index in May: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in May
Haines, AK
- Average cloud cover in May: 47
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in May
Haines, AK
- Average visibility in May: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Haines, Alaska, USA
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