Caribou
Maine, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Caribou, ME

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

Temperature

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

Humidity

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

Rainfall

In Caribou, during May, the rain falls for 16.7 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Caribou, during the entire year, the rain falls for 144 days and collects up to 32.95" (837mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Caribou, Maine. May is the last month it regularly snows. During 0.9 snowfall days, in May, Caribou aggregates 0.55" (14mm) of snow. In Caribou, during the entire year, snow falls for 104.9 days, and aggregates up to 73.35" (1863mm) of snow.

Daylight

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

Sunshine

In Caribou, Maine, the average sunshine is 7.3h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Caribou?

The average high-temperature, in May, is 60.1°F (15.6°C), while the average low-temperature is 40.8°F (4.9°C).

What is the least humid month in Caribou?

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

What is the average humidity in May in Caribou?

In May, the average relative humidity in Caribou, Maine, is 75%.

How many days does it rain in May in Caribou?

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.

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

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

How many hours of sunshine does Caribou have in May?

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

How high is the UV index in May in Caribou?

In Caribou, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in May - Caribou, ME
  • Average high temperature in May: 60.1°F

The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in May: 40.8°F

The month with the highest average low temperature is July (54.7°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).

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

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

Average rainfall in May - Caribou, ME
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is February (2.2").

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).

Average snowfall in May - Caribou, ME
  • Average snowfall in May: 0.55"

The month with the highest snowfall is January (15.91").
Months with the least snowfall are June, July, August and September (0").

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).
Months with the least snowfall days are June, July, August and September (0 days).

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).

Average UV index in May - Caribou, 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).