May weather forecast
Canton, SD

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Weather in May

May signifies a rise in temperatures in Canton, marking an imposing transition towards summer. Rain showers are quite frequent and demonstrate the highest accumulation for the year at 3.07" (78mm). This period is loved by flora, which thrive in the favorable weather and extended daylight of 14.7 hours. With the sun shining for an average of 8.8 hours per day, outdoor events are the order of the day. Meanwhile, the invigorating wind finally subsides to a comfortable speed of 9.6mph (15.4km/h), ushering in the calm before the summer.

Temperature

The beginning of May marks a shift in the average high-temperature, moving from April's moderate 56.7°F (13.7°C) to an agreeable 68.5°F (20.3°C). Canton's nighttime temperature in May drops to an average of 50.7°F (10.4°C).

Humidity

In May, the average relative humidity is 69%.

Rainfall

In Canton, in May, during 16.6 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 119.2 rainfall days, and 21.73" (552mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Canton aggregates 0.24" (6mm) of snow. In Canton, during the entire year, snow falls for 40.5 days and aggregates up to 16.77" (426mm) of snow.

Daylight

In Canton, the average length of the day in May is 14h and 43min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:28 pm. On the last day of May, sunrise is at 5:48 am and sunset at 8:59 pm CDT.

Sunshine

In Canton, the average sunshine in May is 8.8h.

UV index

In Canton, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Canton?

May temperatures vary between a high-temperature of 68.5°F (20.3°C) and a low-temperature of 50.7°F (10.4°C).

What is the average humidity in May?

In Canton, the average relative humidity in May is 69%.

How much does it rain in May?

In Canton, in May, it is raining for 16.6 days, with typically 3.07" (78mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Canton aggregates 0.24" (6mm) of snow.

What is the average length of the day in May?

In Canton, the average day length in May is 14h and 43min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:18 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:59 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.8h.

What is the UV index reading in May?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Canton, SD

Average temperature in May - Canton, SD
  • Average high temperature in May: 68.5°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (24.1°F).

  • Average low temperature in May: 50.7°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

Average pressure in May
Canton, SD

Average pressure in May - Canton, 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 (29.86"Hg).

Average wind speed in May
Canton, SD

Average wind speed in May - Canton, SD
  • Average wind speed in May: 9.6mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in May
Canton, SD

Average humidity in May - Canton, SD
  • Average humidity in May: 69%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (66%).

Average rainfall in May
Canton, SD

Average rainfall in May - Canton, SD
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is June (3.35").
The driest months (with the least rainfall) are January, February and November (0.67").

Average rainfall days in May
Canton, SD

Average rainfall days in May - Canton, SD
  • Average rainfall days in May: 16.6 days

The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is January (3.3 days).

Average snowfall in May
Canton, SD

Average snowfall in May - Canton, SD
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Canton, SD

Average snowfall days in May - Canton, SD
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is December (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Canton, SD

Average daylight in May / Average sunshine in May - Canton, 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 0min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in May
Canton, SD

Average sunshine days in May - Canton, SD
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is June (10.2 days).

Average UV index in May
Canton, SD

Average UV index in May - Canton, 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, February, November and December (UV index 2).

Average cloud cover in May
Canton, SD

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

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in May
Canton, SD

Average visibility in May - Canton, 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).

Canton, South Dakota, USA

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