May weather forecast
Whitehorse, SD

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Weather in May

May, the last month of the spring in Whitehorse, is a comfortable month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 66.6°F (19.2°C).

Temperature

With the onset of May, Whitehorse's average high-temperature sees a rise, moving from April's cool 54.1°F (12.3°C) to an enjoyable 66.6°F (19.2°C). The low-temperature average for Whitehorse during May stands at a frosty 48.2°F (9°C).

Humidity

In May, the average relative humidity in Whitehorse is 62%.

Rainfall

In Whitehorse, in May, it is raining for 13.2 days, with typically 2.28" (58mm) of accumulated precipitation. In Whitehorse, during the entire year, the rain falls for 89.4 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Whitehorse, South Dakota. May is the last month it regularly snows in Whitehorse. During 0.3 snowfall days, in May, Whitehorse aggregates 0.12" (3mm) of snow. Throughout the year, there are 49.4 snowfall days, and 19.09" (485mm) of snow is accumulated.

Daylight

In Whitehorse, South Dakota, the average length of the day in May is 14h and 54min.
On the first day of May in Whitehorse, sunrise is at 5:30 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 4:59 am and sunset at 8:23 pm MDT.

Sunshine

In May, the average sunshine in Whitehorse is 9.3h.

UV index

The average daily maximum UV index in May in Whitehorse, South Dakota, is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the maximum UV index of 5 translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What are the temperatures in Whitehorse in May?

The high-temperature, in May, in Whitehorse, is 66.6°F (19.2°C), while the low-temperature averages to 48.2°F (9°C).

What is the average humidity in May in Whitehorse?

The average relative humidity in May in Whitehorse is 62%.

How many days does it rain in May in Whitehorse?

In Whitehorse, South Dakota, in May, during 13.2 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

What is the last month it snows in Whitehorse?

May is the last month it regularly snows in Whitehorse, South Dakota. During 0.3 snowfall days, in May, Whitehorse aggregates 0.12" (3mm) of snow.

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

In Whitehorse, South Dakota, the average day length in May is 14h and 54min.

What time are sunrise and sunset in May in Whitehorse?

On the first day of May, sunrise is at 5:30 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 4:59 am and sunset at 8:23 pm MDT.

How many hours of sunshine does Whitehorse have in May?

In Whitehorse, the average sunshine duration in May is 9.3h.

What is the UV index reading in May in Whitehorse?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Whitehorse, SD

Average temperature in May - Whitehorse, SD
  • Average high temperature in May: 66.6°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).

  • Average low temperature in May: 48.2°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).

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Average pressure in May
Whitehorse, SD

Average pressure in May - Whitehorse, SD
  • Average pressure in May: 29.92"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in May
Whitehorse, SD

Average wind speed in May - Whitehorse, SD
  • Average wind speed in May: 10.8mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).

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Average humidity in May
Whitehorse, SD

Average humidity in May - Whitehorse, SD
  • Average humidity in May: 62%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).

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Average rainfall in May
Whitehorse, SD

Average rainfall in May - Whitehorse, SD
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in May
Whitehorse, SD

Average rainfall days in May - Whitehorse, SD
  • Average rainfall days in May: 13.2 days

The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).

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Average snowfall in May
Whitehorse, SD

Average snowfall in May - Whitehorse, SD
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Whitehorse, SD

Average snowfall days in May - Whitehorse, SD
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Whitehorse, SD

Average daylight in May / Average sunshine in May - Whitehorse, SD
  • Average daylight in May: 14h and 5min

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

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in May
Whitehorse, SD

Average sunshine days in May - Whitehorse, SD
  • Average sunshine days in May: 15.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).

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Average UV index in May
Whitehorse, SD

Average UV index in May - Whitehorse, SD
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Whitehorse, SD

Average cloud cover in May - Whitehorse, SD
  • Average cloud cover in May: 36

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).

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Average visibility in May
Whitehorse, SD

Average visibility in May - Whitehorse, SD
  • Average visibility in May: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Whitehorse, South Dakota, USA

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