August weather forecast
Penn Valley, CA

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Weather in August

The last month of the summer, August, is another hot month in Penn Valley, California, with an average temperature fluctuating between 89.2°F (31.8°C) and 59.2°F (15.1°C).

Temperature

Penn Valley records an average high-temperature of a still tropical 89.2°F (31.8°C) in August, maintaining a close correlation with July's 90.1°F (32.3°C). Despite a significant daily temperature range, Penn Valley's temperature falls to a steady low-temperature average of 59.2°F (15.1°C) in August.

Humidity

The average relative humidity in August is 38%.

Rainfall

The months with the least rainfall in Penn Valley are July and August Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.

Snowfall

In Penn Valley, snow does not fall in June through October.

Daylight

In August, the average length of the day is 13h and 39min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:16 pm. On the last day of August, in Penn Valley, sunrise is at 6:33 am and sunset at 7:36 pm PDT.

Sunshine

In August, the average sunshine is 12h.

UV index

In Penn Valley, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In August, the UV index of 6 transforms into the following advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

In Penn Valley, in August, the average high-temperature is 89.2°F (31.8°C), and the average low-temperature is 59.2°F (15.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in June is calculated to be 82.4°F (28°C).

What is the average humidity in August?

In August, the average relative humidity is 38%.

What is the driest month?

July and August are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.

How much does it rain in August?

In August, the rain falls for 1.2 days. Throughout August, 0.04" (1mm) of precipitation is accumulated.

When it does not snow?

In Penn Valley, snow does not fall in June through October.

How many hours of daylight does Penn Valley have in August?

The average day length in August is 13h and 39min.

When are sunrise and sunset in August?

On the first day of August in Penn Valley, sunrise is at 6:05 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:36 pm PDT.

How long on average sun shines in August?

In August, the average sunshine duration is 12h.

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
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
Penn Valley, CA

Average temperature in August - Penn Valley, CA
  • Average high temperature in August: 89.2°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (51.3°F).

  • Average low temperature in August: 59.2°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

Average pressure in August
Penn Valley, CA

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
Penn Valley, CA

Average wind speed in August - Penn Valley, CA
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in August
Penn Valley, CA

Average humidity in August - Penn Valley, CA
  • Average humidity in August: 38%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (37%).

Average rainfall in August
Penn Valley, CA

Average rainfall in August - Penn Valley, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is March (6.57").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in August
Penn Valley, CA

Average rainfall days in August - Penn Valley, CA
  • Average rainfall days in August: 1.2 days

The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is July (1.1 days).

Average snowfall in August
Penn Valley, CA

Average snowfall in August - Penn Valley, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Penn Valley, CA

Average snowfall days in August - Penn Valley, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is March (2.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Penn Valley, CA

Average daylight in August / Average sunshine in August - Penn Valley, 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 30min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in August
Penn Valley, CA

Average sunshine days in August - Penn Valley, CA
  • Average sunshine days in August: 28.7 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).

Average UV index in August
Penn Valley, CA

Average UV index in August - Penn Valley, CA
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).

Average cloud cover in August
Penn Valley, CA

Average cloud cover in August - Penn Valley, CA
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in August
Penn Valley, CA

Average visibility in August - Penn Valley, 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).

Penn Valley, California, USA

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