July weather forecast
Princeton, CA

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Weather in July

July in Princeton, California, is a sweltering summer month, with temperature in the range of an average high of 98.8°F (37.1°C) and an average low of 61.5°F (16.4°C).

Temperature

July, known for its average high temperature of 98.8°F (37.1°C) and an average low temperature of 61.5°F (16.4°C), is the warmest month.

Humidity

In Princeton, the average relative humidity in July is 37%.

Rainfall

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

Daylight

The average length of the day in July is 14h and 37min.
On the first day of July, sunrise is at 5:45 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:21 pm PDT.

Sunshine

With an average of 12.1h of sunshine, July has the most sunshine of the year in Princeton.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 7 in July, converts into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

With average high temperatures of 98.8°F (37.1°C) and lows of 61.5°F (16.4°C), July is the warmest month.

How hot is it in July?

The high-temperature during July is 98.8°F (37.1°C) and the low-temperature is 61.5°F (16.4°C). In June, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 93.2°F (34°C).

What is the average humidity in July?

In Princeton, the average relative humidity in July is 37%.

What is the driest month?

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

How many days does it rain in July?

In July, the rain falls for 1 days. Throughout July, 0.04" (1mm) of precipitation is accumulated.

How many hours of daylight does Princeton have in July?

In July, the average day length is 14h and 37min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:45 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:21 pm PDT.

What month has the most sunshine in Princeton?

July has the most sunshine of the year in Princeton, with an average of 12.1h of sunshine.

How many hours of sunshine does Princeton have in July?

In Princeton, the average sunshine duration in July is 12.1h.

What is the month with the highest UV index?

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

How high is the UV index in July?

In July, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's 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 July
Princeton, CA

Average temperature in July - Princeton, CA
  • Average high temperature in July: 98.8°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 July: 61.5°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).

Average pressure in July
Princeton, CA

Average pressure in July - Princeton, CA
  • Average pressure in July: 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).

Average wind speed in July
Princeton, CA

Average wind speed in July - Princeton, CA
  • Average wind speed in July: 5.2mph

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).

Average humidity in July
Princeton, CA

Average humidity in July - Princeton, CA
  • Average humidity in July: 37%

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

Average rainfall in July
Princeton, CA

Average rainfall in July - Princeton, CA
  • Average rainfall in July: 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").

Average rainfall days in July
Princeton, CA

Average rainfall days in July - Princeton, CA
  • Average rainfall days in July: 1 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).

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

Average daylight in July / Average sunshine in July - Princeton, CA
  • Average daylight in July: 14h 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 July: 12h and 1min

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).

Average sunshine days in July
Princeton, CA

Average sunshine days in July - Princeton, CA
  • Average sunshine days in July: 29.8 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).

Average UV index in July
Princeton, CA

Average UV index in July - Princeton, CA
  • Average UV index in July: 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).

Average cloud cover in July
Princeton, CA

Average cloud cover in July - Princeton, CA
  • Average cloud cover in July: 4

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).

Average visibility in July
Princeton, CA

Average visibility in July - Princeton, CA
  • Average visibility in July: 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).

Princeton, California, USA

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