May weather forecast
Viola, ID

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Weather in May

May, the last month of the spring in Viola, is a refreshing month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 63.9°F (17.7°C).

Temperature

Viola's weather in May shows a rise in the average high-temperature, moving up from April's cool 54.5°F (12.5°C) to a comfortable 63.9°F (17.7°C). May's nights exhibit a sharp contrast from day highs, with an average temperature of 41.5°F (5.3°C).

Humidity

In May, the average relative humidity is 70%.

Rainfall

In Viola, in May, it is raining for 16.2 days, with typically 2.28" (58mm) of accumulated precipitation. In Viola, during the entire year, the rain falls for 143.2 days and collects up to 20.51" (521mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Viola aggregates 0.08" (2mm) of snow. In Viola, during the entire year, snow falls for 60.2 days and aggregates up to 47.24" (1200mm) of snow.

Daylight

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

Sunshine

The average sunshine in May is 10.1h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In May, the UV index of 4 transforms into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

What is the temperature in May?

The average high-temperature and low-temperature during May are 63.9°F (17.7°C) and 41.5°F (5.3°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 70%.

How many days does it rain in May?

In May, the rain falls for 16.2 days. Throughout May, 2.28" (58mm) of precipitation is accumulated.

What is the last month it snows?

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

How many hours of daylight does Viola have in May?

In May, the average day length is 15h and 4min.

When are sunrise and sunset in May?

On the first day of May, 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 many hours of sunshine does Viola have in May?

The average sunshine duration in May is 10.1h.

What is the UV index reading in May?

In Viola, Idaho, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Viola, Idaho, USA

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