May weather forecast
De Smet, ID

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Weather in May

May, the last month of the spring in De Smet, is an enjoyable month, with an average temperature varying between 37.8°F (3.2°C) and 62.2°F (16.8°C).

Temperature

May's arrival signals a temperature shift, moving from a cool 50.7°F (10.4°C) in April to a comfortable 62.2°F (16.8°C). During May, De Smet perceives a consistent contrast from the daytime highs, with an average low-temperature of 37.8°F (3.2°C).

Humidity

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

Rainfall

In De Smet, in May, during 15.6 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, in De Smet, Idaho, there are 145.2 rainfall days, and 25.12" (638mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in De Smet, Idaho. May is the last month it regularly snows. During 0.2 snowfall days, in May, De Smet aggregates 0.08" (2mm) of snow. Throughout the year, there are 70.2 snowfall days, and 59.69" (1516mm) of snow is accumulated.

Daylight

The average length of the day in May in De Smet is 15h and 7min.
On the first day of the month, sunrise is at 5:30 am and sunset at 7:59 pm. On the last day of May, in De Smet, sunrise is at 4:55 am and sunset at 8:35 pm PDT.

Sunshine

In De Smet, the average sunshine in May is 9.6h.

UV index

In De Smet, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In May, a daily UV index of 4 turns into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the average May temperature in De Smet?

In De Smet, in May, the average high-temperature is 62.2°F (16.8°C), and the average low-temperature is 37.8°F (3.2°C).

What is the average humidity in May in De Smet?

The average relative humidity in May in De Smet is 70%.

How much does it rain in De Smet in May?

In May, in De Smet, the rain falls for 15.6 days. Throughout May, 1.97" (50mm) of precipitation is accumulated.

What is the last month it snows in De Smet?

May is the last month it regularly snows in De Smet. During 0.2 snowfall days, in May, De Smet aggregates 0.08" (2mm) of snow.

What is the average length of the day in May in De Smet?

The average day length in May is 15h and 7min.

When are sunrise and sunset in May in De Smet?

In May, on the first day of the month, sunrise is at 5:30 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 4:55 am and sunset at 8:35 pm PDT.

How many hours of sunshine does De Smet have in May?

The average sunshine duration in May in De Smet is 9.6h.

How high is the UV index in May in De Smet?

In May, the average daily maximum UV index in De Smet is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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
De Smet, ID

Average temperature in May - De Smet, ID
  • Average high temperature in May: 62.2°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (31.8°F).

  • Average low temperature in May: 37.8°F

The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in May
De Smet, ID

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

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

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Average wind speed in May
De Smet, ID

Average wind speed in May - De Smet, ID
  • Average wind speed in May: 4.5mph

The windiest month (with the highest average wind speed) is April (5mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).

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Average humidity in May
De Smet, ID

Average humidity in May - De Smet, ID
  • Average humidity in May: 70%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in May
De Smet, ID

Average rainfall in May - De Smet, ID
  • Average rainfall in May: 1.97"

The wettest month (with the highest rainfall) is January (3.66").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days in May
De Smet, ID

Average rainfall days in May - De Smet, ID
  • Average rainfall days in May: 15.6 days

The month with the highest number of rainy days is April (18.7 days).
The month with the least rainy days is July (4.9 days).

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Average snowfall in May
De Smet, ID

Average snowfall in May - De Smet, ID
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (16.22").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
De Smet, ID

Average snowfall days in May - De Smet, ID
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is December (16.3 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
De Smet, ID

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 3h and 30min).

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Average sunshine days in May
De Smet, ID

Average sunshine days in May - De Smet, ID
  • Average sunshine days in May: 13.4 days

The month with the most sunshine days is July (25.2 days).
The month with the least sunshine days is March (7.5 days).

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Average UV index in May
De Smet, ID

Average UV index in May - De Smet, ID
  • Average UV index in May: 4

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
De Smet, ID

Average cloud cover in May - De Smet, ID
  • Average cloud cover in May: 36

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in May
De Smet, ID

Average visibility in May - De Smet, ID
  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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De Smet, Idaho, USA

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