May weather forecast
South Burlington, VT

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Weather in May

May gets ushered in on a wave of transformation, signaling confirmatory changes in the weather of South Burlington. With temperatures shifting from 45°F (7.2°C) to 64.9°F (18.3°C), winter’s chill becomes a distant memory. The daylight hours top the hour scale, providing the city with approximately 14.8 hours of daylight. May portraits an increase in rainfall; the city welcomes 1.85" (47mm), its highest since January. As sunny days abound, South Burlington bathes in warm sunlight almost all day long.

Temperature

South Burlington's May weather is characterized by a distinct upsurge in high-temperatures, soaring from April's frosty 49.8°F (9.9°C) to an enjoyable 64.9°F (18.3°C). South Burlington experiences a nighttime temperature average of 45°F (7.2°C) during May.

Humidity

With an average relative humidity of 75%, May is the least humid month.

Rainfall

In May, the rain falls for 16.1 days. Throughout May, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 153.4 rainfall days, and 17.01" (432mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.8 snowfall days, in May, South Burlington aggregates 0.24" (6mm) of snow. In South Burlington, during the entire year, snow falls for 87.7 days and aggregates up to 22.64" (575mm) of snow.

Daylight

In South Burlington, the average length of the day in May is 14h and 49min.
On the first day of May, sunrise is at 5:41 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:29 pm EDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

What are the temperatures in May?

In South Burlington, 64.9°F (18.3°C) is the average high-temperature and 45°F (7.2°C) is the average low-temperature during May.

What is the least humid month?

May is the least humid month, with an average relative humidity of 75%.

What is the average humidity in May?

In May, the average relative humidity is 75%.

How many days does it rain in May in South Burlington?

In South Burlington, during May, the rain falls for 16.1 days and regularly aggregates up to 1.85" (47mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.8 snowfall days, in May, South Burlington aggregates 0.24" (6mm) of snow.

What is the average length of the day in May?

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 5:41 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:29 pm EDT.

How many hours of sunshine does South Burlington have in May?

The average sunshine duration in May is 8.5h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
South Burlington, VT

Average temperature in May - South Burlington, VT
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (24.6°F).

  • Average low temperature in May: 45°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

Average pressure in May
South Burlington, VT

Average pressure in May - South Burlington, VT
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
South Burlington, VT

Average wind speed in May - South Burlington, VT
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in May
South Burlington, VT

Average humidity in May - South Burlington, VT
  • Average humidity in May: 75%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (75%).

Average rainfall in May
South Burlington, VT

Average rainfall in May - South Burlington, VT
  • Average rainfall in May: 1.85"

The wettest month (with the highest rainfall) is June (2.09").
The driest month (with the least rainfall) is February (0.87").

Average rainfall days in May
South Burlington, VT

Average rainfall days in May - South Burlington, VT
  • Average rainfall days in May: 16.1 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in May
South Burlington, VT

Average snowfall in May - South Burlington, VT
  • Average snowfall in May: 0.24"

The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
South Burlington, VT

Average snowfall days in May - South Burlington, VT
  • Average snowfall days in May: 0.8 days

The months with the highest number of snowfall days are January and February (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
South Burlington, VT

Average daylight in May / Average sunshine in May - South Burlington, VT
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 0min).

Average sunshine days in May
South Burlington, VT

Average sunshine days in May - South Burlington, VT
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (7.3 days).

Average UV index in May
South Burlington, VT

Average UV index in May - South Burlington, VT
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
South Burlington, VT

Average cloud cover in May - South Burlington, VT
  • Average cloud cover in May: 46

The month with the most cloud cover is February (Cloud cover 70).
The months with the least cloud cover are July, August and September (Cloud cover 35).

Average visibility in May
South Burlington, VT

Average visibility in May - South Burlington, VT
  • Average visibility in May: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

South Burlington, Vermont, USA

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