May weather forecastMcCarthy, AK

May

Weather in May

May, the last month of the spring in McCarthy, is a chilly month, with an average temperature fluctuating between 29.5°F (-1.4°C) and 43°F (6.1°C).

Temperature

May marks a rise in the average high-temperature, moving from April's subzero cold 29.8°F (-1.2°C) to a chilly 43°F (6.1°C). May brings with it a nighttime average temperature of 29.5°F (-1.4°C) in McCarthy.

Humidity

In May, the average relative humidity is 71%.

Rainfall

In McCarthy, in May, it is raining for 12.4 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, there are 151.8 rainfall days, and 14.88" (378mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 3.2 snowfall days, in May, McCarthy aggregates 0.91" (23mm) of snow. Throughout the year, there are 95.3 snowfall days, and 44.02" (1118mm) of snow is accumulated.

Daylight

The average length of the day in May is 17h and 37min.
On the first day of May, sunrise is at 5:18 am and sunset at 9:39 pm. On the last day of the month, sunrise is at 4:05 am and sunset at 10:53 pm AKDT.

Sunshine

The average sunshine in May is 11.8h.

UV index

In McCarthy, the average daily maximum UV index in May is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 2 during May, leads to the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

In McCarthy, in May, the average high-temperature is 43°F (6.1°C), and the average low-temperature is 29.5°F (-1.4°C).

The average relative humidity in May is 71%.

In May, the rain falls for 12.4 days. Throughout May, 0.83" (21mm) of precipitation is accumulated.

May is the last month it regularly snows. During 3.2 snowfall days, in May, McCarthy aggregates 0.91" (23mm) of snow.

In May, the average day length is 17h and 37min.

On the first day of May in McCarthy, Alaska, sunrise is at 5:18 am and sunset at 9:39 pm. On the last day of the month, sunrise is at 4:05 am and sunset at 10:53 pm AKDT.

In McCarthy, the average sunshine duration in May is 11.8h.

In McCarthy, the average daily maximum UV index in May is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
McCarthy, AK

  • Average high temperature in May: 43°F

The warmest month (with the highest average high temperature) is July (56.8°F).
The month with the lowest average high temperature is January (13.5°F).

  • Average low temperature in May: 29.5°F

The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is February (1°F).

Average pressure in May
McCarthy, AK

  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is November (29.76"Hg).

Average wind speed in May
McCarthy, AK

  • Average wind speed in May: 4mph

The windiest months (with the highest average wind speed) are January and November (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in May
McCarthy, AK

  • Average humidity in May: 71%

The months with the highest relative humidity are January, March, April and December (82%).
The month with the lowest relative humidity is June (66%).

Average rainfall in May
McCarthy, AK

  • Average rainfall in May: 0.83"

The wettest month (with the highest rainfall) is September (1.69").
The driest month (with the least rainfall) is April (0.71").

Average rainfall days in May
McCarthy, AK

  • Average rainfall days in May: 12.4 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (8.4 days).

Average snowfall in May
McCarthy, AK

  • Average snowfall in May: 0.91"

The month with the highest snowfall is December (9.37").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
McCarthy, AK

  • Average snowfall days in May: 3.2 days

The month with the highest number of snowfall days is December (17.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

  • Average daylight in May: 17h and 36min

The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 36min).

  • Average sunshine in May: 11h and 48min

The month with the most sunshine is June (Average sunshine: 14h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

Average sunshine days in May
McCarthy, AK

  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is March (15.8 days).
The month with the least sunshine days is August (9.7 days).

Average UV index in May
McCarthy, AK

  • Average UV index in May: 2

The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in May
McCarthy, AK

  • Average cloud cover in May: 35

The month with the most cloud cover is December (Cloud cover 41).
The months with the least cloud cover are March, May and June (Cloud cover 35).

Average visibility in May
McCarthy, AK

  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).