May weather forecast
Manchester, ME

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Weather in May

May, the last month of the spring in Manchester, is a refreshing month, with an average temperature fluctuating between 44.2°F (6.8°C) and 61.7°F (16.5°C).

Temperature

May's arrival signals a temperature shift, moving from a cool 50°F (10°C) in April to a comfortable 61.7°F (16.5°C). In Manchester, the expected average low-temperature for May is a frosty 44.2°F (6.8°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In Manchester, in May, it is raining for 15.5 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 142.3 rainfall days, and 27.52" (699mm) of precipitation is accumulated.

Snowfall

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

Daylight

In May, the average length of the day is 14h and 48min.
On the first day of the month, sunrise is at 5:29 am and sunset at 7:43 pm. On the last day of May, sunrise is at 4:58 am and sunset at 8:16 pm EDT.

Sunshine

The average sunshine in May is 7.9h.

UV index

In Manchester, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 4 in May leads to these recommendations:
Guard yourself - Avoiding sunburn is suggested. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

What are the temperatures in May?

The high-temperature during May is 61.7°F (16.5°C) and the low-temperature is 44.2°F (6.8°C).

What is the average humidity in May?

The average relative humidity in May is 79%.

How much does it rain in May?

In Manchester, in May, it is raining for 15.5 days, with typically 2.28" (58mm) of accumulated precipitation.

What is the last month it snows?

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

What is the average length of the day in May in Manchester?

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

When is the sunrise / sunset in May?

On the first day of May in Manchester, sunrise is at 5:29 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 4:58 am and sunset at 8:16 pm EDT.

How many hours of sunshine does Manchester have in May?

The average sunshine duration in May in Manchester is 7.9h.

What is the UV index reading in May?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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
Manchester, ME

Average temperature in May - Manchester, 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
Manchester, ME

Average pressure in May - Manchester, 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
Manchester, ME

Average wind speed in May - Manchester, 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
Manchester, ME

Average humidity in May - Manchester, 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
Manchester, ME

Average rainfall in May - Manchester, 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
Manchester, ME

Average rainfall days in May - Manchester, 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
Manchester, ME

Average snowfall in May - Manchester, 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
Manchester, ME

Average snowfall days in May - Manchester, 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
Manchester, ME

Average daylight in May / Average sunshine in May - Manchester, 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
Manchester, ME

Average sunshine days in May - Manchester, 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
Manchester, ME

Average UV index in May - Manchester, 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
Manchester, ME

Average cloud cover in May - Manchester, 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
Manchester, ME

Average visibility in May - Manchester, 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).

Manchester, Maine, USA

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