May weather forecast
Island Park, ID

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Weather in May

In Island Park, May is characterized by spring in full swing. The trees are lush and green, and the days continue to become longer and warmer, replacing the earlier frigid weather. The city landscape flourishes with vibrant colors as flowers blossom, complemented by the substantial increase in sunshine hours. Flowers, plants, and trees, dressed in their spring best, paint the town in vivid hues. The sunny and pleasant climate makes May an ideal month for outdoor exploration and nature walks.

Temperature

The commencement of May in Island Park sees a shift in the average high-temperature, moving from a wintry 42.4°F (5.8°C) in April to a refreshing 55.9°F (13.3°C). May presents a pronounced difference from daytime highs, with a consistent average low-temperature of 33.3°F (0.7°C).

Humidity

In May, the average relative humidity is 67%.

Rainfall

In May, the rain falls for 17 days. Throughout May, 2.2" (56mm) of precipitation is accumulated. Throughout the year, in Island Park, there are 106.1 rainfall days, and 20.83" (529mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Island Park are January through July, September through December. In Island Park, during May, snow falls for 5.7 days and regularly aggregates up to 4.8" (122mm) of snow. In Island Park, during the entire year, snow falls for 138.1 days and aggregates up to 107.64" (2734mm) of snow.

Daylight

The average length of the day in May in Island Park is 14h and 49min.
On the first day of May in Island Park, sunrise is at 6:14 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 9:02 pm MDT.

Sunshine

In May, the average sunshine in Island Park is 10.3h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 4 in May translates into these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Island Park in May?

The average high-temperature, in May, in Island Park, is 55.9°F (13.3°C), while the average low-temperature is 33.3°F (0.7°C).

What is the average humidity in May in Island Park?

In May, the average relative humidity in Island Park, Idaho, is 67%.

How much does it rain in Island Park in May?

In May, in Island Park, Idaho, the rain falls for 17 days. Throughout May, 2.2" (56mm) of precipitation is accumulated.

How many days does it snow in May in Island Park?

In Island Park, Idaho, in May, during 5.7 snowfall days, 4.8" (122mm) of snow is typically accumulated.

What is the average length of the day in May in Island Park?

In Island Park, Idaho, the average day length in May is 14h and 49min.

When are sunrise and sunset in May in Island Park?

In May, on the first day of the month, sunrise is at 6:14 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 9:02 pm MDT.

How long on average sun shines in May in Island Park?

The average sunshine duration in May in Island Park, Idaho, is 10.3h.

How high is the UV index in May in Island Park?

The average daily maximum UV index in May in Island Park, Idaho, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Island Park, ID

Average temperature in May - Island Park, ID
  • Average high temperature in May: 55.9°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (22.3°F).

  • Average low temperature in May: 33.3°F

The month with the highest average low temperature is August (46.6°F).
The coldest months (with the lowest average low temperature) are January and December (6.8°F).

Average pressure in May
Island Park, ID

Average pressure in May - Island Park, ID
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Island Park, ID

Average wind speed in May - Island Park, ID
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).

Average humidity in May
Island Park, ID

Average humidity in May - Island Park, ID
  • Average humidity in May: 67%

The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is August (47%).

Average rainfall in May
Island Park, ID

Average rainfall in May - Island Park, ID
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is February (2.64").
The driest month (with the least rainfall) is July (0.47").

Average rainfall days in May
Island Park, ID

Average rainfall days in May - Island Park, ID
  • Average rainfall days in May: 17 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in May
Island Park, ID

Average snowfall in May - Island Park, ID
  • Average snowfall in May: 4.8"

The month with the highest snowfall is January (19.84").
The month with the least snowfall is August (0").

Average snowfall days in May
Island Park, ID

Average snowfall days in May - Island Park, ID
  • Average snowfall days in May: 5.7 days

The month with the highest number of snowfall days is December (23 days).
The month with the least snowfall days is August (0 days).

Average daylight in May /
Average sunshine in May
Island Park, ID

Average daylight in May / Average sunshine in May - Island Park, ID
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Island Park, ID

Average sunshine days in May - Island Park, ID
  • Average sunshine days in May: 9.3 days

The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is February (5.9 days).

Average UV index in May
Island Park, ID

Average UV index in May - Island Park, ID
  • Average UV index in May: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in May
Island Park, ID

Average cloud cover in May - Island Park, ID
  • Average cloud cover in May: 32

The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 13).

Average visibility in May
Island Park, ID

Average visibility in May - Island Park, ID
  • 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 and December (3mi).

Island Park, Idaho, USA

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