August weather forecast
Princeton, WI

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Weather in August

The last month of the summer, August, is also a moderately hot month in Princeton, Wisconsin, with an average temperature ranging between min 59.2°F (15.1°C) and max 77.4°F (25.2°C).

Temperature

Princeton's average high-temperature in August sits at a still moderately hot 77.4°F (25.2°C), showing little difference from the previous month. The month of August records an average low-temperature of 59.2°F (15.1°C).

Humidity

The average relative humidity in August in Princeton is 81%.

Rainfall

In August, in Princeton, the rain falls for 14 days. Throughout August, 2.32" (59mm) of precipitation is accumulated. In Princeton, Wisconsin, during the entire year, the rain falls for 129.3 days and collects up to 25.51" (648mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 56min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:19 am and sunset at 7:33 pm CDT.

Sunshine

In Princeton, the average sunshine in August is 9.7h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Princeton. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 during August leads to these advisories:
Adopt protective measures - It is advised to guard against sun damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Princeton?

In August, in Princeton, the average high-temperature is 77.4°F (25.2°C), and the average low-temperature is 59.2°F (15.1°C).

What is the average humidity in August in Princeton?

In Princeton, the average relative humidity in August is 81%.

How much does it rain in Princeton in August?

In Princeton, Wisconsin, during August, the rain falls for 14 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Princeton?

June through September are months without snowfall in Princeton, Wisconsin.

How many hours of daylight does Princeton have in August?

In August, the average day length is 13h and 56min.

When are sunrise and sunset in August in Princeton?

In August, on the first day of the month, sunrise is at 5:45 am and sunset at 8:19 pm. On the last day of the month, in Princeton, Wisconsin, sunrise is at 6:19 am and sunset at 7:33 pm CDT.

How many hours of sunshine does Princeton have in August?

In Princeton, the average sunshine duration in August is 9.7h.

What are the months with the highest UV index in Princeton?

The months with the highest UV index in Princeton are May through August, with an average maximum UV index of 5.

How high is the UV index in August in Princeton?

In August, the average daily maximum UV index in Princeton, Wisconsin, is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Princeton, WI

Average temperature in August - Princeton, WI
  • Average high temperature in August: 77.4°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.1°F).

  • Average low temperature in August: 59.2°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).

Average pressure in August
Princeton, WI

Average pressure in August - Princeton, WI
  • Average pressure in August: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Princeton, WI

Average wind speed in August - Princeton, WI
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in August
Princeton, WI

Average humidity in August - Princeton, WI
  • Average humidity in August: 81%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (75%).

Average rainfall in August
Princeton, WI

Average rainfall in August - Princeton, WI
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in August
Princeton, WI

Average rainfall days in August - Princeton, WI
  • Average rainfall days in August: 14 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (3 days).

Average snowfall in August
Princeton, WI

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

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Princeton, WI

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

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in August
Princeton, WI

Average sunshine days in August - Princeton, WI
  • Average sunshine days in August: 13.7 days

The month with the most sunshine days is December (17.9 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in August
Princeton, WI

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

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

Average cloud cover in August
Princeton, WI

Average cloud cover in August - Princeton, WI
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in August
Princeton, WI

Average visibility in August - Princeton, WI
  • Average visibility in August: 6mi

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

Princeton, Wisconsin, USA

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