August weather forecast
Jefferson, ME

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Weather in August

The last month of the summer, August, is another pleasant month in Jefferson, Maine, with an average temperature fluctuating between 58.8°F (14.9°C) and 72.7°F (22.6°C).

Temperature

With average temperatures fluctuating between a high of 72.7°F (22.6°C) and a low of 58.8°F (14.9°C), August stands out as the warmest month.

Humidity

In Jefferson, the average relative humidity in August is 82%.

Rainfall

In Jefferson, in August, it is raining for 12.1 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, in Jefferson, there are 144.1 rainfall days, and 29.29" (744mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Jefferson, Maine, the average length of the day in August is 13h and 58min.
On the first day of August, sunrise is at 5:26 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:15 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.4h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in August interprets into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

August is the warmest month, exhibiting average temperatures of 72.7°F (22.6°C) at the peak and 58.8°F (14.9°C) at the base.

What are the temperatures in August?

In Jefferson, 72.7°F (22.6°C) is the average high-temperature and 58.8°F (14.9°C) is the average low-temperature during August.

What is the average humidity in August?

The average relative humidity in August is 82%.

How many days does it rain in August?

In Jefferson, in August, during 12.1 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow?

In Jefferson, snow does not fall in May through September.

What is the average length of the day in August?

In August, the average day length is 13h and 58min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:26 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:15 pm EDT.

What month has the most sunshine?

With an average of 10.4h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August?

The average sunshine duration in August is 10.4h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

How high is the UV index in August?

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Jefferson, ME

Average temperature in August - Jefferson, ME
  • Average high temperature in August: 72.7°F

The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 58.8°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
Jefferson, ME

Average pressure in August - Jefferson, ME
  • Average pressure in August: 29.96"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).

Average wind speed in August
Jefferson, ME

Average wind speed in August - Jefferson, ME
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in August
Jefferson, ME

Average humidity in August - Jefferson, ME
  • Average humidity in August: 82%

The months with the highest relative humidity are June and July (83%).
The month with the lowest relative humidity is November (76%).

Average rainfall in August
Jefferson, ME

Average rainfall in August - Jefferson, ME
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.57").

Average rainfall days in August
Jefferson, ME

Average rainfall days in August - Jefferson, ME
  • Average rainfall days in August: 12.1 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in August
Jefferson, ME

Average snowfall in August - Jefferson, ME
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.37").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Jefferson, ME

Average snowfall days in August - Jefferson, ME
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Jefferson, ME

Average daylight in August / Average sunshine in August - Jefferson, ME
  • Average daylight in August: 14h and 0min

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 August: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in August
Jefferson, ME

Average sunshine days in August - Jefferson, ME
  • Average sunshine days in August: 16.6 days

The month with the most sunshine days is September (18.3 days).
The month with the least sunshine days is April (11.4 days).

Average UV index in August
Jefferson, ME

Average UV index in August - Jefferson, ME
  • Average UV index in August: 5

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).

Average cloud cover in August
Jefferson, ME

Average cloud cover in August - Jefferson, ME
  • Average cloud cover in August: 32

The months with the most cloud cover are February, March, April and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
Jefferson, ME

Average visibility in August - Jefferson, ME
  • Average visibility in August: 6mi

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

Jefferson, Maine, USA

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