May weather forecast
Augusta, ME

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Beautiful view of the water and skyline in Augusta, Maine, with trees and mountains in a distance
Beautiful view of the water and skyline in Augusta, Maine, with trees and mountains in a distance

Weather in May

May welcomes Augusta into a delicate spring, as it shrugs off the colder temperatures from 50°F (10°C) in April to a much milder 61.7°F (16.5°C). Outdoor activities and festivities become more feasible with sunny days making a frequent appearance. The month witnesses a characteristic rise in rainfall, dampening the soil and nourishing the city's flora. Nonetheless, the weather largely remains pleasant, with the sun shining for more than half the daylight hours.

Temperature

With the transition into May, Augusta experiences an increase in average high-temperatures, moving up from a fresh 50°F (10°C) in April to a refreshing 61.7°F (16.5°C). Throughout May, an average nighttime temperature of 44.2°F (6.8°C) is experienced in Augusta.

Humidity

The average relative humidity in May is 79%.

Rainfall

In May, the rain falls for 15.5 days. Throughout May, 2.28" (58mm) of precipitation is accumulated. In Augusta, during the entire year, the rain falls for 142.3 days and collects up to 27.52" (699mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Augusta aggregates 0.63" (16mm) of snow. In Augusta, during the entire year, snow falls for 50.3 days and aggregates up to 29.69" (754mm) of snow.

Daylight

The average length of the day in May is 14h and 48min.
On the first day of the month, sunrise is at 5:28 am and sunset at 7:43 pm. On the last day of May, sunrise is at 4:58 am and sunset at 8:15 pm EDT.

Sunshine

In May, the average sunshine is 7.9h.

UV index

In May, the average daily maximum UV index in Augusta is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In May, a regular UV index of 4 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.

Frequently asked questions

What are May temperatures?

In May, in Augusta, the average high-temperature is 61.7°F (16.5°C), and the average low-temperature is 44.2°F (6.8°C).

What is the average humidity in May?

In May, the average relative humidity is 79%.

How many days does it rain in May?

In Augusta, during May, the rain falls for 15.5 days and regularly aggregates up to 2.28" (58mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Augusta aggregates 0.63" (16mm) of snow.

What is the average length of the day in May?

In Augusta, the average day length in May is 14h and 48min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:28 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 4:58 am and sunset at 8:15 pm EDT.

How long on average sun shines in May?

In Augusta, the average sunshine duration in May is 7.9h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
Augusta, ME

Average temperature in May - Augusta, ME
  • Average high temperature in May: 61.7°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in May: 44.2°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

Average pressure in May
Augusta, ME

Average pressure in May - Augusta, ME
  • Average pressure in May: 29.99"Hg

The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Augusta, ME

Average wind speed in May - Augusta, ME
  • Average wind speed in May: 6.9mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May
Augusta, ME

Average humidity in May - Augusta, ME
  • Average humidity in May: 79%

The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is November (76%).

Average rainfall in May
Augusta, ME

Average rainfall in May - Augusta, ME
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in May
Augusta, ME

Average rainfall days in May - Augusta, ME
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7 days).

Average snowfall in May
Augusta, ME

Average snowfall in May - Augusta, ME
  • Average snowfall in May: 0.63"

The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Augusta, ME

Average snowfall days in May - Augusta, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Augusta, ME

Average daylight in May / Average sunshine in May - Augusta, ME
  • 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: 7h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
Augusta, ME

Average sunshine days in May - Augusta, ME
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (11.6 days).

Average UV index in May
Augusta, ME

Average UV index in May - Augusta, ME
  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in May
Augusta, ME

Average cloud cover in May - Augusta, ME
  • Average cloud cover in May: 49

The months with the most cloud cover are March and April (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 36).

Average visibility in May
Augusta, ME

Average visibility in May - Augusta, ME
  • Average visibility in May: 5mi

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

Augusta, Maine, USA

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