May weather forecast
Onida, SD

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Weather in May

The last month of the spring, May, is a comfortable month in Onida, South Dakota, with an average temperature varying between 47.8°F (8.8°C) and 66.2°F (19°C).

Temperature

May comes with an increase, with the average high-temperature moving from a cool 54°F (12.2°C) in April to a comfortable 66.2°F (19°C). Throughout May nights, Onida experiences a consistent temperature average of 47.8°F (8.8°C).

Humidity

In Onida, the average relative humidity in May is 64%.

Rainfall

In Onida, in May, it is raining for 13.7 days, with typically 2.32" (59mm) of accumulated precipitation. In Onida, during the entire year, the rain falls for 97.8 days and collects up to 16.65" (423mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Onida. May is the last month it regularly snows in Onida. During 0.3 snowfall days, in May, Onida aggregates 0.31" (8mm) of snow. In Onida, during the entire year, snow falls for 59.7 days and aggregates up to 19.96" (507mm) of snow.

Daylight

In May, the average length of the day is 14h and 50min.
On the first day of the month, sunrise is at 6:28 am and sunset at 8:45 pm. On the last day of May, sunrise is at 5:57 am and sunset at 9:18 pm CDT.

Sunshine

In May, the average sunshine in Onida is 9.1h.

UV index

In May, the average daily maximum UV index in Onida is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What are May temperatures in Onida?

May temperatures vary between a high-temperature of 66.2°F (19°C) and a low-temperature of 47.8°F (8.8°C).

What is the average humidity in May in Onida?

The average relative humidity in May in Onida is 64%.

How many days does it rain in May in Onida?

In Onida, during May, the rain falls for 13.7 days and regularly aggregates up to 2.32" (59mm) of precipitation.

What is the last month it snows in Onida?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Onida aggregates 0.31" (8mm) of snow.

How many hours of daylight does Onida have in May?

In May, the average day length is 14h and 50min.

When is the sunrise / sunset in May in Onida?

On the first day of May in Onida, sunrise is at 6:28 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 9:18 pm CDT.

How long on average sun shines in May in Onida?

The average sunshine duration in May is 9.1h.

How high is the UV index in May in Onida?

In Onida, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Onida, SD

Average temperature in May - Onida, SD
  • Average high temperature in May: 66.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (22.6°F).

  • Average low temperature in May: 47.8°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

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Average pressure in May
Onida, SD

Average pressure in May - Onida, 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
Onida, SD

Average wind speed in May - Onida, SD
  • Average wind speed in May: 11mph

The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).

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Average humidity in May
Onida, SD

Average humidity in May - Onida, SD
  • Average humidity in May: 64%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (56%).

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Average rainfall in May
Onida, SD

Average rainfall in May - Onida, SD
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in May
Onida, SD

Average rainfall days in May - Onida, SD
  • Average rainfall days in May: 13.7 days

The month with the highest number of rainy days is June (14.4 days).
The month with the least rainy days is February (1.9 days).

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Average snowfall in May
Onida, SD

Average snowfall in May - Onida, SD
  • Average snowfall in May: 0.31"

The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Onida, SD

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

The month with the highest number of snowfall days is January (12.8 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
Onida, SD

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in May
Onida, SD

Average sunshine days in May - Onida, SD
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (13.1 days).

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Average UV index in May
Onida, SD

Average UV index in May - Onida, 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, February, November and December (UV index 1).

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Average cloud cover in May
Onida, SD

Average cloud cover in May - Onida, SD
  • Average cloud cover in May: 38

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 22).

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Average visibility in May
Onida, SD

Average visibility in May - Onida, 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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Onida, South Dakota, USA

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