May weather forecast
West Britton, SD

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Weather in May

May, the last month of the spring in West Britton, is a refreshing month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 65.7°F (18.7°C).

Temperature

With the onset of May, the average high-temperature slightly shifts from April's fresh 51.8°F (11°C) to a comfortable 65.7°F (18.7°C). West Britton in May experiences a low-temperature average of 48.2°F (9°C).

Humidity

In West Britton, the average relative humidity in May is 66%.

Rainfall

In West Britton, in May, during 15.2 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In West Britton, during the entire year, the rain falls for 109.5 days and collects up to 20.39" (518mm) 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, West Britton aggregates 0.24" (6mm) of snow. Throughout the year, there are 68.5 snowfall days, and 22.83" (580mm) of snow is accumulated.

Daylight

In West Britton, the average length of the day in May is 14h and 58min.
On the first day of May, sunrise is at 6:17 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 9:13 pm CDT.

Sunshine

The average sunshine in May in West Britton is 9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 5 in May translates into these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Experience reduced UV exposure by about half when donning a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

In May, the average high-temperature and low-temperature are 65.7°F (18.7°C) and 48.2°F (9°C) respectively.

What is the average humidity in May?

In May, the average relative humidity is 66%.

How many days does it rain in May?

In West Britton, in May, it is raining for 15.2 days, with typically 2.52" (64mm) of accumulated precipitation.

What is the last month it snows in West Britton?

May is the last month it regularly snows in West Britton. During 0.4 snowfall days, in May, West Britton aggregates 0.24" (6mm) of snow.

How many hours of daylight does West Britton have in May?

The average day length in May is 14h and 58min.

When are sunrise and sunset in May in West Britton?

In May, on the first day of the month, sunrise is at 6:17 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 9:13 pm CDT.

How many hours of sunshine does West Britton have in May?

The average sunshine duration in May is 9h.

How high is the UV index in May?

In West Britton, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health risk from 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
West Britton, SD

Average temperature in May - West Britton, SD
  • Average high temperature in May: 65.7°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (19°F).

  • Average low temperature in May: 48.2°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

Average pressure in May
West Britton, SD

Average pressure in May - West Britton, SD
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
West Britton, SD

Average wind speed in May - West Britton, SD
  • Average wind speed in May: 9.9mph

The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in May
West Britton, SD

Average humidity in May - West Britton, SD
  • Average humidity in May: 66%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are August and September (62%).

Average rainfall in May
West Britton, SD

Average rainfall in May - West Britton, SD
  • Average rainfall in May: 2.52"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in May
West Britton, SD

Average rainfall days in May - West Britton, SD
  • Average rainfall days in May: 15.2 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.4 days).

Average snowfall in May
West Britton, SD

Average snowfall in May - West Britton, SD
  • Average snowfall in May: 0.24"

The month with the highest snowfall is December (4.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
West Britton, SD

Average snowfall days in May - West Britton, SD
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
West Britton, SD

Average daylight in May / Average sunshine in May - West Britton, SD
  • Average daylight in May: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in May
West Britton, SD

Average sunshine days in May - West Britton, SD
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in May
West Britton, SD

Average UV index in May - West Britton, 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 November (UV index 1).

Average cloud cover in May
West Britton, SD

Average cloud cover in May - West Britton, SD
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in May
West Britton, SD

Average visibility in May - West Britton, SD
  • Average visibility in May: 6mi

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

West Britton, South Dakota, USA

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