August weather forecast
Princeton, CA

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Weather in August

August, the last month of the summer in Princeton, is another torrid month, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 97°F (36.1°C).

Temperature

August observes an average high-temperature of a still torrid 97°F (36.1°C), marking an insignificant difference from July's 98.8°F (37.1°C). August nights show a substantial disparity from the daytime peak with an average low-temperature of 61.3°F (16.3°C).

Humidity

In Princeton, the average relative humidity in August is 39%.

Rainfall

The months with the least rainfall in Princeton are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

Daylight

The average length of the day in August in Princeton is 13h and 40min.
On the first day of August, sunrise is at 6:08 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:39 pm PDT.

Sunshine

In August, the average sunshine in Princeton is 11.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in August translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

How hot is it in Princeton in August?

In August, in Princeton, the average high-temperature is 97°F (36.1°C), and the average low-temperature is 61.3°F (16.3°C). In June, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 93.2°F (34°C).

What is the average humidity in August in Princeton?

The average relative humidity in August in Princeton, California, is 39%.

What is the driest month in Princeton?

July and August are months with the least rain in Princeton, California, when the rain falls for 1.3 days and typically aggregates up to 0.04" (1mm) of rain.

How many days does it rain in August in Princeton?

In Princeton, in August, it is raining for 1.3 days, with typically 0.04" (1mm) of accumulated precipitation.

How many hours of daylight does Princeton have in August?

In Princeton, California, the average day length in August is 13h and 40min.

What time are sunrise and sunset in August in Princeton?

In August, on the first day of the month, sunrise is at 6:08 am and sunset at 8:20 pm. On the last day of the month, in Princeton, California, sunrise is at 6:36 am and sunset at 7:39 pm PDT.

How long on average sun shines in August in Princeton?

The average sunshine duration in August is 11.9h.

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

June through August, with an average maximum UV index of 7, are months with the highest UV index in Princeton, California.

What is the UV index reading in August in Princeton?

In August, the average daily maximum UV index in Princeton is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Princeton, CA

Average temperature in August - Princeton, CA
  • Average high temperature in August: 97°F

The warmest month (with the highest average high temperature) is July (98.8°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in August: 61.3°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).

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Average pressure in August
Princeton, CA

Average pressure in August - Princeton, CA
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
Princeton, CA

Average wind speed in August - Princeton, CA
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in August
Princeton, CA

Average humidity in August - Princeton, CA
  • Average humidity in August: 39%

The month with the highest relative humidity is March (71%).
The month with the lowest relative humidity is September (36%).

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Average rainfall in August
Princeton, CA

Average rainfall in August - Princeton, CA
  • Average rainfall in August: 0.04"

The wettest months (with the highest rainfall) are February and December (1.3").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in August
Princeton, CA

Average rainfall days in August - Princeton, CA
  • Average rainfall days in August: 1.3 days

The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is July (1 days).

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

Average daylight in August / Average sunshine in August - Princeton, CA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in August
Princeton, CA

Average sunshine days in August - Princeton, CA
  • Average sunshine days in August: 29.1 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (19.7 days).

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Average UV index in August
Princeton, CA

Average UV index in August - Princeton, CA
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in August
Princeton, CA

Average cloud cover in August - Princeton, CA
  • Average cloud cover in August: 5

The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in August
Princeton, CA

Average visibility in August - Princeton, CA
  • 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).

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Princeton, California, USA

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