Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
In Princeton, the peak temperatures are generally noted in August, averaging a high of 83.7°F (28.7°C) and a low of 58.1°F (14.5°C).Heat index
August's average heat index is computed to be 82.4°F (28°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The least humid month in Princeton is August, with an average relative humidity of 40%.Rainfall
The months with the least rainfall in Princeton are July and August Rain falls for 5.9 days and accumulates 0.47" (12mm) of rain.Snowfall
June through August are months without snowfall in Princeton.Daylight
The average length of the day in August is 14h and 9min.On the first day of the month, sunrise is at 5:28 am and sunset at 8:19 pm. On the last day of August, in Princeton, sunrise is at 6:06 am and sunset at 7:28 pm PDT.
Sunshine
With an average of 12h of sunshine, August has the most sunshine of the year.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 5 transforms into these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. To guard against the harmful effects of the Sun, minimize exposure during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Princeton?
How hot is August in Princeton?
What is the least humid month in Princeton?
What is the average humidity in August in Princeton?
What is the driest month in Princeton?
How much does it rain in Princeton in August?
When it does not snow in Princeton?
Does it snow in Princeton in August?
What is the average length of the day in August in Princeton?
What time are sunrise and sunset in August in Princeton?
What month has the most sunshine in Princeton?
How long on average sun shines in August in Princeton?
What is the UV index reading in August in Princeton?
Average temperature in August
Princeton, ID
- Average high temperature in August: 83.7°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in August: 58.1°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in August
Princeton, ID
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in August
Princeton, ID
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in August
Princeton, ID
- Average humidity in August: 40%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).
Average rainfall in August
Princeton, ID
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in August
Princeton, ID
- Average rainfall days in August: 5.9 days
The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall in August
Princeton, ID
- Average snowfall in August: 0"
The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Princeton, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Princeton, ID
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).
Average sunshine days in August
Princeton, ID
- Average sunshine days in August: 21.6 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in August
Princeton, ID
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in August
Princeton, ID
- Average cloud cover in August: 12
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in August
Princeton, ID
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Princeton, Idaho, USA
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