June weather forecast
Princeton, CA

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Weather in June

June, the first month of the summer in Princeton, is a tropical month, with an average temperature varying between 91.2°F (32.9°C) and 60.3°F (15.7°C).

Temperature

A rise in the average high-temperature is observed during June, moving from a warm 80.4°F (26.9°C) in May to a hot 91.2°F (32.9°C). Princeton undergoes a major shift from daytime highs, averaging a refreshing 60.3°F (15.7°C) during the night in June.

Heat index

June's average heat index is computed to be a tropical 93.2°F (34°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In Princeton, the average relative humidity in June is 41%.

Rainfall

In Princeton, California, in June, it is raining for 1.8 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, there are 58.9 rainfall days, and 6.89" (175mm) of precipitation is accumulated.

Daylight

With an average of 14h and 54min of daylight, June has the longest days of the year.
On the first day of June in Princeton, sunrise is at 5:42 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:39 pm PDT.

Sunshine

In Princeton, the average sunshine in June is 11.8h.

UV index

The months with the highest UV index in Princeton are June through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: During June, 7 as the daily maximum UV index converts into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

How hot is it in Princeton in June?

An average high-temperature, in June, in Princeton, is 91.2°F (32.9°C) and the average low-temperature is 60.3°F (15.7°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 June in Princeton?

In Princeton, the average relative humidity in June is 41%.

How much does it rain in Princeton in June?

In June, in Princeton, California, the rain falls for 1.8 days. Throughout June, 0.12" (3mm) of precipitation is accumulated.

When are the longest days in Princeton?

June has the longest days of the year in Princeton, California, with an average of 14h and 54min of daylight.

How many hours of daylight does Princeton have in June?

The average day length in June in Princeton, California, is 14h and 54min.

What time are sunrise and sunset in June in Princeton?

In June, on the first day of the month, sunrise is at 5:42 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:39 pm PDT.

How long on average sun shines in June in Princeton?

In Princeton, the average sunshine duration in June is 11.8h.

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 intensity in June in Princeton?

In Princeton, the average daily maximum UV index in June is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Princeton, CA

Average temperature in June - Princeton, CA
  • Average high temperature in June: 91.2°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 June: 60.3°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 June
Princeton, CA

Average pressure in June - Princeton, CA
  • Average pressure in June: 29.9"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 June
Princeton, CA

Average wind speed in June - Princeton, CA
  • Average wind speed in June: 6mph

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 June
Princeton, CA

Average humidity in June - Princeton, CA
  • Average humidity in June: 41%

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 June
Princeton, CA

Average rainfall in June - Princeton, CA
  • Average rainfall in June: 0.12"

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 June
Princeton, CA

Average rainfall days in June - Princeton, CA
  • Average rainfall days in June: 1.8 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 June /
Average sunshine in June
Princeton, CA

Average daylight in June / Average sunshine in June - Princeton, CA
  • Average daylight in June: 14h and 5min

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 June: 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 June
Princeton, CA

Average sunshine days in June - Princeton, CA
  • Average sunshine days in June: 27.6 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 June
Princeton, CA

Average UV index in June - Princeton, CA
  • Average UV index in June: 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 June
Princeton, CA

Average cloud cover in June - Princeton, CA
  • Average cloud cover in June: 10

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 June
Princeton, CA

Average visibility in June - Princeton, CA
  • Average visibility in June: 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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