May weather forecast
Palmer, AK

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The scenic Mountain Park within the Mine State Historical Park in Palmer Province, Alaska
The scenic Mountain Park within the Mine State Historical Park in Palmer Province, Alaska

Weather in May

May marks the transition from spring to early summer in Palmer. The increased daytime temperature and significant reduction in snowfall indicate the end of winter. Residents prepare for warmer days with more sunlight and outdoor activities. June will push the temperature needle further up, as the longest days of the year approaches. The clear skies and warmer days make May one of the most enjoyable months in Palmer.

Temperature

The onset of May marks an increase in the average high-temperature, moving from an icy 36.1°F (2.3°C) in April to a frosty 48.6°F (9.2°C). Throughout May, an average nighttime temperature of 33.3°F (0.7°C) is experienced in Palmer.

Humidity

May and June, with an average relative humidity of 69%, are the least humid months.

Rainfall

In May, the rain falls for 18.3 days. Throughout May, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 190.7 rainfall days, and 17.4" (442mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 1.1 snowfall days, in May, Palmer aggregates 0.16" (4mm) of snow. Throughout the year, there are 76.2 snowfall days, and 33.5" (851mm) of snow is accumulated.

Daylight

In May, the average length of the day is 17h and 40min.
On the first day of the month, sunrise is at 5:41 am and sunset at 10:05 pm. On the last day of May, sunrise is at 4:27 am and sunset at 11:20 pm AKDT.

Sunshine

The month with the most sunshine is May, with an average of 11.8h of sunshine.

UV index

In Palmer, the average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 3 during May leads to these advisories:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

What is the temperature in May?

The high-temperature, in May, in Palmer, is 48.6°F (9.2°C), while the low-temperature averages to 33.3°F (0.7°C).

What are the least humid months in Palmer?

The months with the lowest humidity are May and June, with an average relative humidity of 69%.

What is the average humidity in May?

In May, the average relative humidity is 69%.

How many days does it rain in May in Palmer?

In Palmer, during May, the rain falls for 18.3 days and regularly aggregates up to 1.18" (30mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 1.1 snowfall days, in May, Palmer aggregates 0.16" (4mm) of snow.

What is the average length of the day in May?

In May, the average day length is 17h and 40min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:41 am and sunset at 10:05 pm. On the last day of the month, sunrise is at 4:27 am and sunset at 11:20 pm AKDT.

What month has the most sunshine?

May has the most sunshine of the year in Palmer, with an average of 11.8h of sunshine.

How long on average sun shines in May?

In May, the average sunshine duration is 11.8h.

What is the UV index intensity in May?

The average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Palmer, AK

Average temperature in May - Palmer, AK
  • Average high temperature in May: 48.6°F

The warmest month (with the highest average high temperature) is July (61.2°F).
The month with the lowest average high temperature is January (18.1°F).

  • Average low temperature in May: 33.3°F

The month with the highest average low temperature is July (44.2°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).

Average pressure in May
Palmer, AK

Average pressure in May - Palmer, AK
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.7"Hg).

Average wind speed in May
Palmer, AK

Average wind speed in May - Palmer, AK
  • Average wind speed in May: 4.4mph

The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is July (4mph).

Average humidity in May
Palmer, AK

Average humidity in May - Palmer, AK
  • Average humidity in May: 69%

The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are May and June (69%).

Average rainfall in May
Palmer, AK

Average rainfall in May - Palmer, AK
  • Average rainfall in May: 1.18"

The wettest month (with the highest rainfall) is September (2.24").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in May
Palmer, AK

Average rainfall days in May - Palmer, AK
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is June (22.4 days).
The month with the least rainy days is February (8.9 days).

Average snowfall in May
Palmer, AK

Average snowfall in May - Palmer, AK
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (6.93").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Palmer, AK

Average snowfall days in May - Palmer, AK
  • Average snowfall days in May: 1.1 days

The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Palmer, AK

Average daylight in May / Average sunshine in May - Palmer, AK
  • Average daylight in May: 17h and 4min

The month with the longest days is June (Average daylight: 19h and 24min).
The month with the shortest days is December (Average daylight: 5h and 30min).

  • Average sunshine in May: 11h and 5min

The month with the most sunshine is May (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

Average sunshine days in May
Palmer, AK

Average sunshine days in May - Palmer, AK
  • Average sunshine days in May: 9.1 days

The month with the most sunshine days is January (13.9 days).
The month with the least sunshine days is June (5.3 days).

Average UV index in May
Palmer, AK

Average UV index in May - Palmer, 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 January and December (UV index 1).

Average cloud cover in May
Palmer, AK

Average cloud cover in May - Palmer, AK
  • Average cloud cover in May: 38

The month with the most cloud cover is April (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 37).

Average visibility in May
Palmer, AK

Average visibility in May - Palmer, 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 February, March and April (4mi).

Palmer, Alaska, USA

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