May weather forecast
Viola, ID

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Weather in May

The last month of the spring, May, is a refreshing month in Viola, Idaho, with an average temperature ranging between max 63.9°F (17.7°C) and min 41.5°F (5.3°C).

Temperature

The onset of May brings a rise in the average high-temperature, elevating from a cool 54.5°F (12.5°C) in April to a comfortable 63.9°F (17.7°C). Despite high daytime temperatures, the average temperature in Viola lowers to an icy 41.5°F (5.3°C) during May nights.

Humidity

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

Rainfall

In Viola, Idaho, in May, it is raining for 16.2 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 143.2 rainfall days, and 20.51" (521mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Viola. May is the last month it regularly snows. During 0.3 snowfall days, in May, Viola aggregates 0.08" (2mm) of snow. Throughout the year, in Viola, there are 60.2 snowfall days, and 47.24" (1200mm) of snow is accumulated.

Daylight

In Viola, the average length of the day in May is 15h and 4min.
On the first day of May in Viola, Idaho, sunrise is at 5:31 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 4:57 am and sunset at 8:34 pm PDT.

Sunshine

In Viola, the average sunshine in May is 10.1h.

UV index

In May, the average daily maximum UV index in Viola, Idaho, is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 4 in May translates into the following instructions:
Undertake protective steps - Preventing sun damage is advised. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What is the usual temperature for Viola in May?

The high-temperature, in May, in Viola, is 63.9°F (17.7°C), while the low-temperature averages to 41.5°F (5.3°C).

What is the average humidity in May in Viola?

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

How many days does it rain in May in Viola?

In Viola, Idaho, during May, the rain falls for 16.2 days and regularly aggregates up to 2.28" (58mm) of precipitation.

What is the last month it snows in Viola?

May is the last month it regularly snows in Viola, Idaho. During 0.3 snowfall days, in May, Viola aggregates 0.08" (2mm) of snow.

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

The average day length in May is 15h and 4min.

When are sunrise and sunset in May in Viola?

In May, on the first day of the month, sunrise is at 5:31 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 4:57 am and sunset at 8:34 pm PDT.

How long on average sun shines in May in Viola?

In Viola, the average sunshine duration in May is 10.1h.

What is the UV index intensity in May in Viola?

The average daily maximum UV index in May in Viola is 4. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Viola, ID

Average temperature in May - Viola, ID
  • Average high temperature in May: 63.9°F

The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).

  • Average low temperature in May: 41.5°F

The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

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Average pressure in May
Viola, ID

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

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in May
Viola, ID

Average wind speed in May - Viola, ID
  • Average wind speed in May: 5.1mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

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Average humidity in May
Viola, ID

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

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in May
Viola, ID

Average rainfall in May - Viola, ID
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").

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Average rainfall days in May
Viola, ID

Average rainfall days in May - Viola, ID
  • Average rainfall days in May: 16.2 days

The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).

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Average snowfall in May
Viola, ID

Average snowfall in May - Viola, ID
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Viola, ID

Average snowfall days in May - Viola, ID
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is December (14.1 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
Viola, ID

Average daylight in May / Average sunshine in May - Viola, ID
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in May: 10h and 1min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).

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Average sunshine days in May
Viola, ID

Average sunshine days in May - Viola, ID
  • Average sunshine days in May: 12.4 days

The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).

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Average UV index in May
Viola, ID

Average UV index in May - Viola, ID
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in May
Viola, ID

Average cloud cover in May - Viola, ID
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in May
Viola, ID

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).

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Viola, Idaho, USA

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