August weather forecast
Princeton, MA

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Weather in August

August, the last month of the summer in Princeton, is also a moderately hot month, with an average temperature varying between 78.4°F (25.8°C) and 59.5°F (15.3°C).

Temperature

Princeton notes an average high-temperature of a still moderately hot 78.4°F (25.8°C) in August, hardly diverging from July. An average low-temperature of 59.5°F (15.3°C) is noted during the nights in August.

Humidity

The average relative humidity in August is 77%.

Rainfall

In August, the rain falls for 13.2 days. Throughout August, 1.14" (29mm) of precipitation is accumulated. Throughout the year, there are 119.4 rainfall days, and 12.44" (316mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Princeton, the average length of the day in August is 13h and 51min.
On the first day of the month, sunrise is at 5:40 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:12 am and sunset at 7:22 pm EDT.

Sunshine

July and August, with an average of 9.8h of sunshine, are months with the most sunshine.

UV index

In Princeton, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What is the average August temperature in Princeton?

August temperatures in Princeton vary between a high-temperature of 78.4°F (25.8°C) and a low-temperature of 59.5°F (15.3°C).

What is the average humidity in August in Princeton?

In Princeton, Massachusetts, the average relative humidity in August is 77%.

How much does it rain in Princeton in August?

In August, in Princeton, Massachusetts, the rain falls for 13.2 days. Throughout August, 1.14" (29mm) of precipitation is accumulated.

When it does not snow in Princeton?

In Princeton, Massachusetts, snow does not fall in June through September.

How many hours of daylight does Princeton have in August?

In Princeton, Massachusetts, the average day length in August is 13h and 51min.

What time are sunrise and sunset in August in Princeton?

In August, on the first day of the month, sunrise is at 5:40 am and sunset at 8:07 pm. On the last day of the month, in Princeton, sunrise is at 6:12 am and sunset at 7:22 pm EDT.

What is the month with the most sunshine in Princeton?

July and August, with an average of 9.8h of sunshine, are months with the most sunshine in Princeton.

How many hours of sunshine does Princeton have in August?

The average sunshine duration in August in Princeton is 9.8h.

How high is the UV index in August in Princeton?

In August, the average daily maximum UV index in Princeton, Massachusetts, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Princeton, MA

Average temperature in August - Princeton, MA
  • Average high temperature in August: 78.4°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

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Average pressure in August
Princeton, MA

Average pressure in August - Princeton, MA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Princeton, MA

Average wind speed in August - Princeton, MA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in August
Princeton, MA

Average humidity in August - Princeton, MA
  • Average humidity in August: 77%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in August
Princeton, MA

Average rainfall in August - Princeton, MA
  • Average rainfall in August: 1.14"

The wettest months (with the highest rainfall) are June and July (1.3").
The driest month (with the least rainfall) is February (0.71").

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Average rainfall days in August
Princeton, MA

Average rainfall days in August - Princeton, MA
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in August
Princeton, MA

Average snowfall in August - Princeton, MA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Princeton, MA

Average snowfall days in August - Princeton, MA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Princeton, MA

Average daylight in August / Average sunshine in August - Princeton, MA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 9h and 5min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in August
Princeton, MA

Average sunshine days in August - Princeton, MA
  • Average sunshine days in August: 15.7 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is April (14.3 days).

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Average UV index in August
Princeton, MA

Average UV index in August - Princeton, MA
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in August
Princeton, MA

Average cloud cover in August - Princeton, MA
  • Average cloud cover in August: 38

The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in August
Princeton, MA

Average visibility in August - Princeton, MA
  • Average visibility in August: 5mi

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

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Princeton, Massachusetts, USA

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