May weather forecast
Caribou, ME

Weather in May

The last month of the spring, May, is a moderate month in Caribou, Maine, with average temperature varying between 40.8°F (4.9°C) and 60.1°F (15.6°C).

Temperature

In Caribou, Maine, the average high-temperature increases considerably, from a frosty 43.2°F (6.2°C) in April, to a moderate 60.1°F (15.6°C). The average low-temperature, in May, is 40.8°F (4.9°C).

Humidity

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

Rainfall

In May, in Caribou, the rain falls for 16.7 days. Throughout May, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 144 rainfall days, and 32.95" (837mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Caribou. May is the last month it regularly snows in Caribou, Maine. During 0.9 snowfall days, Caribou aggregates 0.55" (14mm) of snow. Throughout the year, there are 104.9 snowfall days, and 73.35" (1863mm) of snow is accumulated.

Daylight

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

Sunshine

In Caribou, the average sunshine is 7.3h.

UV index

The average daily maximum UV index in Caribou is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the least humid month in Caribou?

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

What is the average humidity in May in Caribou?

The average relative humidity in May in Caribou is 75%.

How much does it rain in Caribou in May?

In Caribou, Maine, in May, during 16.7 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

What is the last month it snows in Caribou?

May is the last month it regularly snows in Caribou. During 0.9 snowfall days, in May, Caribou aggregates 0.55" (14mm) of snow.

How many hours of daylight does Caribou have in May?

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

How long on average sun shines in May in Caribou?

In May, the average sunshine in Caribou is 7.3h.

How high is the UV index in May in Caribou?

The average daily maximum UV index in May in Caribou is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Caribou, ME

Average temperature in May - Caribou, ME
  • Average high temperature in May: 15.6°C

The warmest month (with the highest average high temperature) is July (23.9°C).
The month with the lowest average high temperature is January (-7°C).

  • Average low temperature in May: 4.9°C

The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-15.4°C).

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Average pressure in May
Caribou, ME

Average pressure in May - Caribou, ME
  • Average pressure in May: 1014.8mbar

The month with the highest atmospheric pressure is September (1016.5mbar).
The month with the lowest atmospheric pressure is June (1012.1mbar).

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Average wind speed in May
Caribou, ME

Average wind speed in May - Caribou, ME
  • Average wind speed in May: 12.5km/h

The windiest month (with the highest average wind speed) is March (13.1km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).

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Average humidity in May
Caribou, ME

Average humidity in May - Caribou, ME
  • Average humidity in May: 75%

The months with the highest relative humidity are February and March (93%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in May
Caribou, ME

Average rainfall in May - Caribou, ME
  • Average rainfall in May: 73mm

The wettest month (with the highest rainfall) is April (88mm).
The driest month (with the least rainfall) is February (56mm).

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Average rainfall days in May
Caribou, ME

Average rainfall days in May - Caribou, ME
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is January (4.2 days).

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Average snowfall in May
Caribou, ME

Average snowfall in May - Caribou, ME
  • Average snowfall in May: 14mm

The month with the highest snowfall is January (404mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in May
Caribou, ME

Average snowfall days in May - Caribou, ME
  • Average snowfall days in May: 0.9 days

The month with the highest number of snowfall days is February (21 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
Caribou, ME

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

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in May: 7.3h

The month with the most sunshine is August (Average sunshine: 9.4h).
The month with the least sunshine is February (Average sunshine: 2.1h).

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Average sunshine days in May
Caribou, ME

Average sunshine days in May - Caribou, ME
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is February (7.8 days).

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Average UV index in May
Caribou, ME

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

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

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Average cloud cover in May
Caribou, ME

Average cloud cover in May - Caribou, ME
  • Average cloud cover in May: 54

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).

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Average visibility in May
Caribou, ME

Average visibility in May - Caribou, ME
  • Average visibility in May: 9km

The month with the highest visibility is May (9km).
The months with the lowest visibility are January, February and March (6km).

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