May weather forecast
Coolin, ID

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Weather in May

The last month of the spring, May, is a refreshing month in Coolin, Idaho, with an average temperature varying between 60.8°F (16°C) and 36.5°F (2.5°C).

Temperature

With the onset of May, the average high-temperature slightly shifts from April's chilly 47.8°F (8.8°C) to a comfortable 60.8°F (16°C). Coolin marks a considerable descent from the daytime apex, as the average temperature dips to an icy 36.5°F (2.5°C) at night throughout May.

Humidity

The average relative humidity in May in Coolin is 70%.

Rainfall

In Coolin, during May, the rain falls for 15.8 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Coolin, there are 135.4 rainfall days, and 23.03" (585mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Coolin aggregates 0.63" (16mm) of snow. In Coolin, Idaho, during the entire year, snow falls for 81.3 days and aggregates up to 59.45" (1510mm) of snow.

Daylight

In Coolin, the average length of the day in May is 15h and 16min.
On the first day of the month, sunrise is at 5:26 am and sunset at 8:02 pm. On the last day of May, sunrise is at 4:49 am and sunset at 8:40 pm PDT.

Sunshine

In Coolin, the average sunshine in May is 9.5h.

UV index

The average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 3 suggests these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

What are the temperatures in Coolin in May?

In Coolin, in May, the average high-temperature is 60.8°F (16°C), and the average low-temperature is 36.5°F (2.5°C).

What is the average humidity in May in Coolin?

In Coolin, the average relative humidity in May is 70%.

How much does it rain in Coolin in May?

In Coolin, Idaho, in May, it is raining for 15.8 days, with typically 2.24" (57mm) of accumulated precipitation.

What is the last month it snows in Coolin?

May is the last month it regularly snows in Coolin. During 0.7 snowfall days, in May, Coolin aggregates 0.63" (16mm) of snow.

What is the average length of the day in May in Coolin?

In May, the average day length is 15h and 16min.

When are sunrise and sunset in May in Coolin?

In May, on the first day of the month, sunrise is at 5:26 am and sunset at 8:02 pm. On the last day of the month, in Coolin, sunrise is at 4:49 am and sunset at 8:40 pm PDT.

How many hours of sunshine does Coolin have in May?

In May, the average sunshine duration in Coolin is 9.5h.

What is the UV index reading in May in Coolin?

In May, the average daily maximum UV index in Coolin is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
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
Coolin, ID

Average temperature in May - Coolin, ID
  • Average high temperature in May: 60.8°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (27.7°F).

  • Average low temperature in May: 36.5°F

The month with the highest average low temperature is August (47.1°F).
The coldest months (with the lowest average low temperature) are February and December (16.7°F).

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Average pressure in May
Coolin, ID

Average pressure in May - Coolin, ID
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Coolin, ID

Average wind speed in May - Coolin, ID
  • Average wind speed in May: 4.2mph

The windiest months (with the highest average wind speed) are April and May (4.2mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

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Average humidity in May
Coolin, ID

Average humidity in May - Coolin, ID
  • Average humidity in May: 70%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (54%).

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Average rainfall in May
Coolin, ID

Average rainfall in May - Coolin, ID
  • Average rainfall in May: 2.24"

The wettest month (with the highest rainfall) is December (2.83").
The driest month (with the least rainfall) is August (0.59").

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Average rainfall days in May
Coolin, ID

Average rainfall days in May - Coolin, ID
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is April (17.7 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in May
Coolin, ID

Average snowfall in May - Coolin, ID
  • Average snowfall in May: 0.63"

The month with the highest snowfall is January (14.76").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Coolin, ID

Average snowfall days in May - Coolin, ID
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is December (17.6 days).
The 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
Coolin, ID

Average daylight in May / Average sunshine in May - Coolin, ID
  • Average daylight in May: 15h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in May: 9h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

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Average sunshine days in May
Coolin, ID

Average sunshine days in May - Coolin, ID
  • Average sunshine days in May: 13.1 days

The month with the most sunshine days is August (21 days).
The month with the least sunshine days is April (9 days).

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Average UV index in May
Coolin, ID

Average UV index in May - Coolin, ID
  • Average UV index in May: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in May
Coolin, ID

Average cloud cover in May - Coolin, ID
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in May
Coolin, ID

Average visibility in May - Coolin, ID
  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

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Coolin, Idaho, USA

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