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 start of May brings a subtle rise in the average high-temperature, moving from a cold 39.4°F (4.1°C) in April to a frosty 48°F (8.9°C). In Gustavus, the nocturnal temperatures throughout May show a marginal dip from the daytime averages, settling at a wintry 39.9°F (4.4°C).Humidity
In May, the average relative humidity is 85%.Rainfall
The month with the least rainfall is May, when the rain falls for 15.3 days and typically collects 1.61" (41mm) of precipitation.Snowfall
In Gustavus, snow does not fall in May through September.Daylight
The average length of the day in May is 16h and 51min.On the first day of May in Gustavus, Alaska, sunrise is at 5:05 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 4:06 am and sunset at 9:55 pm AKDT.
Sunshine
In Gustavus, the average sunshine in May is 7.1h.UV index
The average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in May leads to these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What is the average May temperature in Gustavus?
What is the average humidity in May in Gustavus?
What is the driest month in Gustavus?
How much does it rain in Gustavus in May?
When it does not snow in Gustavus?
Does it snow in Gustavus in May?
What is the average length of the day in May in Gustavus?
When are sunrise and sunset in May in Gustavus?
How long on average sun shines in May in Gustavus?
What is the UV index reading in May in Gustavus?
Average temperature in May
Gustavus, AK
- Average high temperature in May: 48°F
The warmest month (with the highest average high temperature) is July (57.2°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in May: 39.9°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).
Average pressure in May
Gustavus, AK
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.77"Hg).
Average wind speed in May
Gustavus, AK
- Average wind speed in May: 3.9mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).
Average humidity in May
Gustavus, AK
- Average humidity in May: 85%
The month with the highest relative humidity is August (90%).
The month with the lowest relative humidity is November (84%).
Average rainfall in May
Gustavus, AK
- Average rainfall in May: 1.61"
The wettest months (with the highest rainfall) are October and November (4.21").
The driest month (with the least rainfall) is May (1.61").
Average rainfall days in May
Gustavus, AK
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in May
Gustavus, AK
- Average snowfall in May: 0"
The month with the highest snowfall is January (11.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Gustavus, AK
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Gustavus, AK
- Average daylight in May: 16h and 5min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in May: 7h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).
Average sunshine days in May
Gustavus, AK
- Average sunshine days in May: 12.5 days
The months with the most sunshine days are February and May (12.5 days).
The month with the least sunshine days is June (7.7 days).
Average UV index in May
Gustavus, AK
- Average UV index in May: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in May
Gustavus, AK
- Average cloud cover in May: 56
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).
Average visibility in May
Gustavus, AK
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
The months with the lowest visibility are July and August (4mi).
Gustavus, Alaska, USA
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