May weather forecast
Palmer, AK

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, the last month of the spring, in Palmer, is a frosty month, with average temperature fluctuating between 33.3°F (0.7°C) and 48.6°F (9.2°C).

Temperature

In Palmer, the average high-temperature rises, from a cold 36.1°F (2.3°C) in April, to a frosty 48.6°F (9.2°C). In May, the average low-temperature is 33.3°F (0.7°C).

Humidity

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

Rainfall

In Palmer, Alaska,, during 18.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Palmer, Alaska, during the entire year, the rain falls for 190.7 days and collects up to 17.4" (442mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.1 snowfall days, in May, Palmer aggregates 0.16" (4mm) of snow. In Palmer, during the entire year, snow falls for 76.2 days, and aggregates up to 33.5" (851mm) of snow.

Daylight

The average length of the day in Palmer is 17.7h.

Sunshine

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

UV index

The average daily maximum UV index in May is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for the average person.
Note: In May, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What are the least humid months in Palmer?

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

What is the average humidity in May in Palmer?

In Palmer, the average relative humidity in May is 69%.

How many days does it rain in May in Palmer?

In Palmer, Alaska, 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 in Palmer?

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 Palmer?

The average length of the day in May in Palmer, Alaska, is 17.7h.

What month has the most sunshine in Palmer?

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

How long on average sun shines in May in Palmer?

In May, the average sunshine in Palmer, Alaska, is 11.8h.

What is the UV index reading in May in Palmer?

In Palmer, Alaska, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.

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).

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Average pressure in May
Palmer, AK

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

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

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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).

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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%).
Months with the lowest relative humidity are May and June (69%).

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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").

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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).

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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").
Months with the least snowfall are June, July and August (0").

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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).
Months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Palmer, AK
  • Average daylight in May: 17.7h

The month with the longest days is June (Average daylight: 19.4h).
The month with the shortest days is December (Average daylight: 5.5h).

  • Average sunshine in May: 11.8h

The month with the most sunshine is May (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 3.9h).

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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).

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Average UV index in May
Palmer, AK

Average UV index in May - Palmer, AK
  • Average UV index in May: 3

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January and December (UV index 1).

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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).

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Average visibility in May
Palmer, AK

Average visibility in May - Palmer, AK
  • Average visibility in May: 6mi

Months with the highest visibility are May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are February, March and April (4mi).

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