May weather forecast
Bon Homme Colony, SD

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Weather in May

May, the last month of the spring in Bon Homme Colony, is a pleasant month, with temperature in the range of an average high of 69.1°F (20.6°C) and an average low of 50.9°F (10.5°C).

Temperature

As May arrives, Bon Homme Colony's weather shows an increase in high-temperatures, moving from April's mild 57.9°F (14.4°C) to an agreeable 69.1°F (20.6°C). An average nighttime temperature of 50.9°F (10.5°C) is recorded during May.

Humidity

The average relative humidity in May in Bon Homme Colony is 70%.

Rainfall

May is the month with the most rainfall. Rain falls for 16.9 days and accumulates 3.78" (96mm) of precipitation.

Snowfall

Months with snowfall in Bon Homme Colony, South Dakota, are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Bon Homme Colony aggregates 0.31" (8mm) of snow. Throughout the year, there are 37.4 snowfall days, and 14.45" (367mm) of snow is accumulated.

Daylight

In Bon Homme Colony, South Dakota, the average length of the day in May is 14h and 40min.
On the first day of May in Bon Homme Colony, sunrise is at 6:23 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 9:02 pm CDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

In Bon Homme Colony, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Bon Homme Colony?

The high-temperature, in May, in Bon Homme Colony, is 69.1°F (20.6°C), while the low-temperature averages to 50.9°F (10.5°C).

What is the average humidity in May in Bon Homme Colony?

In May, the average relative humidity in Bon Homme Colony, South Dakota, is 70%.

What is the wettest month in Bon Homme Colony?

The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.78" (96mm) of precipitation.

How many days does it rain in May in Bon Homme Colony?

In Bon Homme Colony, in May, during 16.9 rainfall days, 3.78" (96mm) of precipitation is typically accumulated.

What is the last month it snows in Bon Homme Colony?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Bon Homme Colony aggregates 0.31" (8mm) of snow.

How many hours of daylight does Bon Homme Colony have in May?

In Bon Homme Colony, the average day length in May is 14h and 40min.

When is the sunrise / sunset in May in Bon Homme Colony?

On the first day of May in Bon Homme Colony, sunrise is at 6:23 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 9:02 pm CDT.

How many hours of sunshine does Bon Homme Colony have in May?

In May, the average sunshine duration is 8.9h.

How high is the UV index in May in Bon Homme Colony?

In Bon Homme Colony, South Dakota, 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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Bon Homme Colony, SD

Average temperature in May - Bon Homme Colony, SD
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in May: 50.9°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 (12.9°F).

Average pressure in May
Bon Homme Colony, SD

Average pressure in May - Bon Homme Colony, SD
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Bon Homme Colony, SD

Average wind speed in May - Bon Homme Colony, SD
  • Average wind speed in May: 9.6mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity in May
Bon Homme Colony, SD

Average humidity in May - Bon Homme Colony, SD
  • Average humidity in May: 70%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).

Average rainfall in May
Bon Homme Colony, SD

Average rainfall in May - Bon Homme Colony, SD
  • Average rainfall in May: 3.78"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.59").

Average rainfall days in May
Bon Homme Colony, SD

Average rainfall days in May - Bon Homme Colony, SD
  • Average rainfall days in May: 16.9 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in May
Bon Homme Colony, SD

Average snowfall in May - Bon Homme Colony, SD
  • Average snowfall in May: 0.31"

The month with the highest snowfall is December (2.95").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Bon Homme Colony, SD

Average snowfall days in May - Bon Homme Colony, SD
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Bon Homme Colony, SD

Average daylight in May / Average sunshine in May - Bon Homme Colony, SD
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in May
Bon Homme Colony, SD

Average sunshine days in May - Bon Homme Colony, SD
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.3 days).

Average UV index in May
Bon Homme Colony, SD

Average UV index in May - Bon Homme Colony, SD
  • Average UV index in May: 5

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

Average cloud cover in May
Bon Homme Colony, SD

Average cloud cover in May - Bon Homme Colony, SD
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in May
Bon Homme Colony, SD

Average visibility in May - Bon Homme Colony, SD
  • Average visibility in May: 6mi

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

Bon Homme Colony, South Dakota, USA

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