May weather forecast
Lake Preston, SD

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Weather in May

The last month of the spring, May, is a refreshing month in Lake Preston, South Dakota, with an average temperature ranging between min 48.7°F (9.3°C) and max 66.4°F (19.1°C).

Temperature

With the arrival of May, the average high-temperature transitions from a fresh 54.1°F (12.3°C) in April to an enjoyable 66.4°F (19.1°C). During the month of May, the temperature falls to an average of 48.7°F (9.3°C).

Humidity

In May, the average relative humidity is 70%.

Rainfall

In Lake Preston, in May, it is raining for 16.3 days, with typically 2.95" (75mm) of accumulated precipitation. In Lake Preston, during the entire year, the rain falls for 111.2 days and collects up to 21.14" (537mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Lake Preston aggregates 0.35" (9mm) of snow. Throughout the year, there are 49.4 snowfall days, and 20.04" (509mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 49min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:34 pm. On the last day of May, sunrise is at 5:48 am and sunset at 9:06 pm CDT.

Sunshine

In Lake Preston, the average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Lake Preston in May?

May temperatures vary between a high-temperature of 66.4°F (19.1°C) and a low-temperature of 48.7°F (9.3°C).

What is the average humidity in May?

In May, the average relative humidity in Lake Preston is 70%.

How much does it rain in May?

In Lake Preston, in May, it is raining for 16.3 days, with typically 2.95" (75mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.4 snowfall days, in May, Lake Preston aggregates 0.35" (9mm) of snow.

How many hours of daylight does Lake Preston have in May?

In Lake Preston, the average day length in May is 14h and 49min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:18 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 9:06 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.6h.

How high is the UV index in May?

In Lake Preston, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes 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
Lake Preston, SD

Average temperature in May - Lake Preston, SD
  • Average high temperature in May: 66.4°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).

Average pressure in May
Lake Preston, SD

Average pressure in May - Lake Preston, 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).

Average wind speed in May
Lake Preston, SD

Average wind speed in May - Lake Preston, SD
  • Average wind speed in May: 10.1mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

Average humidity in May
Lake Preston, SD

Average humidity in May - Lake Preston, SD
  • Average humidity in May: 70%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (67%).

Average rainfall in May
Lake Preston, SD

Average rainfall in May - Lake Preston, SD
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is November (0.59").

Average rainfall days in May
Lake Preston, SD

Average rainfall days in May - Lake Preston, SD
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is January (1.6 days).

Average snowfall in May
Lake Preston, SD

Average snowfall in May - Lake Preston, SD
  • Average snowfall in May: 0.35"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Lake Preston, SD

Average snowfall days in May - Lake Preston, SD
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Lake Preston, SD

Average daylight in May / Average sunshine in May - Lake Preston, 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 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Lake Preston, SD

Average sunshine days in May - Lake Preston, SD
  • Average sunshine days in May: 13.1 days

The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in May
Lake Preston, SD

Average UV index in May - Lake Preston, 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).

Average cloud cover in May
Lake Preston, SD

Average cloud cover in May - Lake Preston, SD
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in May
Lake Preston, SD

Average visibility in May - Lake Preston, 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).

Lake Preston, South Dakota, USA

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