May weather forecast and climate
Sinclair, ME

The last month of the spring, May, is a mild month in Sinclair, Maine, with average temperature fluctuating between 58.8°F (14.9°C) and 39.6°F (4.2°C).

Temperature

In Sinclair, the average high-temperature soars, from a cold 40.8°F (4.9°C) in April, to a moderate 58.8°F (14.9°C). In May, in Sinclair, the average low-temperature is 39.6°F (4.2°C).

Humidity

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

Rainfall

In Sinclair, during May, the rain falls for 16.6 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, in Sinclair, there are 140.8 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.2 snowfall days, Sinclair aggregates 0.87" (22mm) of snow. Throughout the year, in Sinclair, there are 107.8 snowfall days, and 71.34" (1812mm) of snow is accumulated.

Daylight

The average length of the day in May is 15.1h.

Sunshine

In May, the average sunshine is 7.6h.

UV index

In Sinclair, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Sinclair?

The average high-temperature, in May, in Sinclair, Maine, is 58.8°F (14.9°C), while the average low-temperature is 39.6°F (4.2°C).

What is the least humid month in Sinclair?

The least humid month is May, with an average relative humidity of 76%.

What is the average humidity in May in Sinclair?

The average relative humidity in May in Sinclair is 76%.

How much does it rain in Sinclair in May?

In Sinclair, in May, it is raining for 16.6 days, with typically 2.76" (70mm) of accumulated precipitation.

What is the last month it snows in Sinclair?

May is the last month it regularly snows in Sinclair. During 1.2 snowfall days, in May, Sinclair aggregates 0.87" (22mm) of snow.

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

In Sinclair, the average length of the day in May is 15.1h.

How long on average sun shines in May in Sinclair?

In Sinclair, the average sunshine in May is 7.6h.

How high is the UV index in May in Sinclair?

In May, the average daily maximum UV index in Sinclair is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in May - Sinclair, ME
  • Average high temperature in May: 58.8°F

The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).

  • Average low temperature in May: 39.6°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).

Average pressure in May - Sinclair, ME
  • Average pressure in May: 29.96"

Months with the highest atmospheric pressure are March, September and November (30.01").
The month with the lowest atmospheric pressure is June (29.88").

Average wind speed in May - Sinclair, ME
  • Average wind speed in May: 7.5mph

The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in May - Sinclair, ME
  • Average humidity in May: 76%

The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).

Average rainfall in May - Sinclair, ME
  • Average rainfall in May: 2.76"

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days in May - Sinclair, ME
  • Average rainfall days in May: 16.6 days

The month with the highest number of rainy days is July (17.1 days).
Months with the least rainy days are January and February (4.3 days).

Average snowfall in May - Sinclair, ME
  • Average snowfall in May: 0.87"

The month with the highest snowfall is January (14.92").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in May - Sinclair, ME
  • Average snowfall days in May: 1.2 days

The month with the highest number of snowfall days is January (21.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Sinclair, ME
  • Average daylight in May: 15.1h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in May: 7.6h

The month with the most sunshine is August (Average sunshine: 9.5h).
The month with the least sunshine is February (Average sunshine: 2.1h).

Average sunshine days in May - Sinclair, ME
  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).

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

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in May - Sinclair, ME
  • Average cloud cover in May: 53

The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).

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

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