May weather forecast
Old Town, ME

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Weather in May

May signals the arrival of late spring in Old Town, with temperatures climbing to an average high of 62.4°F (16.9°C). The rainfall increases to a comfortable 2.48" (63mm), making the weather pleasant rather than humid. As the last of the cherry blossom petals fall, the city transforms into a landscape of lush greenery. Outdoor activities, such as gardening, picnicking, and bike riding, become popular.

Temperature

In May, the average high-temperature in Old Town, Maine, increases from a frosty 49.8°F (9.9°C) in April to an enjoyable 62.4°F (16.9°C). Old Town observes an average nighttime low-temperature of 43.2°F (6.2°C) during the month of May.

Humidity

May is the least humid month in Old Town, Maine, with an average relative humidity of 76%.

Rainfall

In Old Town, during May, the rain falls for 16.6 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Old Town, during the entire year, the rain falls for 148.7 days and collects up to 29.84" (758mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Old Town. During 0.1 snowfall days, in May, Old Town aggregates 0.63" (16mm) of snow. In Old Town, during the entire year, snow falls for 61.1 days and aggregates up to 36.34" (923mm) of snow.

Daylight

The average length of the day in May in Old Town is 14h and 52min.
On the first day of the month, sunrise is at 5:22 am and sunset at 7:40 pm. On the last day of May, in Old Town, sunrise is at 4:51 am and sunset at 8:13 pm EDT.

Sunshine

In May, the average sunshine in Old Town is 7.8h.

UV index

In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 4 during May morphs into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Stay sun-safe with clothing that is both closely woven and worn loosely. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What are the temperatures in Old Town in May?

In May, the average high-temperature and low-temperature in Old Town are 62.4°F (16.9°C) and 43.2°F (6.2°C) respectively.

What is the least humid month in Old Town?

With an average relative humidity of 76%, May is the least humid month in Old Town, Maine.

What is the average humidity in May in Old Town?

The average relative humidity in May in Old Town, Maine, is 76%.

How many days does it rain in May in Old Town?

In Old Town, in May, it is raining for 16.6 days, with typically 2.48" (63mm) of accumulated precipitation.

What is the last month it snows in Old Town?

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

How many hours of daylight does Old Town have in May?

In Old Town, Maine, the average day length in May is 14h and 52min.

When are sunrise and sunset in May in Old Town?

On the first day of May in Old Town, Maine, sunrise is at 5:22 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 4:51 am and sunset at 8:13 pm EDT.

How many hours of sunshine does Old Town have in May?

In May, the average sunshine duration in Old Town is 7.8h.

What is the UV index reading in May in Old Town?

In Old Town, Maine, the average daily maximum UV index in May is 4. A UV Index reading 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
Old Town, ME

Average temperature in May - Old Town, ME
  • Average high temperature in May: 62.4°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 (26.6°F).

  • Average low temperature in May: 43.2°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in May
Old Town, ME

Average pressure in May - Old Town, ME
  • Average pressure in May: 29.98"Hg

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

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Average wind speed in May
Old Town, ME

Average wind speed in May - Old Town, ME
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Old Town, ME

Average humidity in May - Old Town, ME
  • Average humidity in May: 76%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (76%).

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Average rainfall in May
Old Town, ME

Average rainfall in May - Old Town, ME
  • Average rainfall in May: 2.48"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.61").

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Average rainfall days in May
Old Town, ME

Average rainfall days in May - Old Town, ME
  • Average rainfall days in May: 16.6 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in May
Old Town, ME

Average snowfall in May - Old Town, ME
  • Average snowfall in May: 0.63"

The month with the highest snowfall is January (8.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Old Town, ME

Average snowfall days in May - Old Town, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Old Town, ME

Average daylight in May / Average sunshine in May - Old Town, 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 48min).

  • Average sunshine in May: 7h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in May
Old Town, ME

Average sunshine days in May - Old Town, ME
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (10.1 days).

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Average UV index in May
Old Town, ME

Average UV index in May - Old Town, 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, November and December (UV index 2).

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Average cloud cover in May
Old Town, ME

Average cloud cover in May - Old Town, ME
  • Average cloud cover in May: 51

The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 39).

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Average visibility in May
Old Town, ME

Average visibility in May - Old Town, ME
  • Average visibility in May: 5mi

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

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Old Town, Maine, USA

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