May weather forecast
Clark, SD

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Weather in May

May, the last month of the spring in Clark, is a refreshing month, with an average temperature fluctuating between 64.6°F (18.1°C) and 46.9°F (8.3°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a fresh 51.6°F (10.9°C) in April to a comfortable 64.6°F (18.1°C). Clark experiences a consistent average temperature of 46.9°F (8.3°C) throughout the nights in May.

Humidity

In May, the average relative humidity in Clark is 71%.

Rainfall

In Clark, in May, it is raining for 16.3 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, in Clark, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Clark are January through May, October through December. May is the last month it regularly snows. During 0.8 snowfall days, in May, Clark aggregates 0.12" (3mm) of snow. Throughout the year, in Clark, South Dakota, there are 64.3 snowfall days, and 17.56" (446mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 52min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:36 pm. On the last day of May, sunrise is at 5:47 am and sunset at 9:09 pm CDT.

Sunshine

The average sunshine in May in Clark is 8.7h.

UV index

In Clark, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In May, a regular UV index of 5 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the average May temperature in Clark?

In Clark, in May, the average high-temperature is 64.6°F (18.1°C), and the average low-temperature is 46.9°F (8.3°C).

What is the average humidity in May in Clark?

In Clark, the average relative humidity in May is 71%.

How much does it rain in Clark in May?

In Clark, South Dakota, in May, it is raining for 16.3 days, with typically 2.52" (64mm) of accumulated precipitation.

What is the last month it snows in Clark?

May is the last month it regularly snows in Clark. During 0.8 snowfall days, in May, Clark aggregates 0.12" (3mm) of snow.

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

In Clark, the average day length in May is 14h and 52min.

When are sunrise and sunset in May in Clark?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 8:36 pm. On the last day of the month, in Clark, South Dakota, sunrise is at 5:47 am and sunset at 9:09 pm CDT.

How long on average sun shines in May in Clark?

In May, the average sunshine duration in Clark, South Dakota, is 8.7h.

How high is the UV index in May in Clark?

The average daily maximum UV index in May in Clark is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Clark, SD

Average temperature in May - Clark, SD
  • Average high temperature in May: 64.6°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in May: 46.9°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

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Average pressure in May
Clark, SD

Average pressure in May - Clark, 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 (29.85"Hg).

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Average wind speed in May
Clark, SD

Average wind speed in May - Clark, SD
  • Average wind speed in May: 10.3mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

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Average humidity in May
Clark, SD

Average humidity in May - Clark, SD
  • Average humidity in May: 71%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).

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Average rainfall in May
Clark, SD

Average rainfall in May - Clark, SD
  • Average rainfall in May: 2.52"

The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").

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Average rainfall days in May
Clark, SD

Average rainfall days in May - Clark, SD
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).

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Average snowfall in May
Clark, SD

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

The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Clark, SD

Average snowfall days in May - Clark, SD
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (14.4 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
Clark, SD

Average daylight in May / Average sunshine in May - Clark, 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: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in May
Clark, SD

Average sunshine days in May - Clark, SD
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in May
Clark, SD

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

The months with the highest UV index are June and July (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
Clark, SD

Average cloud cover in May - Clark, SD
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in May
Clark, SD

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

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