August weather forecast
Foresthill, CA

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Weather in August

August, the last month of the summer in Foresthill, is another tropical month, with an average temperature varying between 55.9°F (13.3°C) and 86.9°F (30.5°C).

Temperature

The advent of August brings an average high-temperature of a still hot 86.9°F (30.5°C), almost identical to the preceding month. Foresthill's August nights bring a significant temperature shift, averaging at a refreshing 55.9°F (13.3°C).

Humidity

In August, the average relative humidity is 39%.

Rainfall

In Foresthill, in August, during 1.6 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. Throughout the year, there are 85.5 rainfall days, and 35.94" (913mm) of precipitation is accumulated.

Snowfall

In Foresthill, snow does not fall in June through October.

Daylight

In Foresthill, the average length of the day in August is 13h and 38min.
On the first day of August, sunrise is at 6:04 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:34 pm PDT.

Sunshine

The average sunshine in August is 11.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

An average high-temperature, in August, in Foresthill, is 86.9°F (30.5°C) and the average low-temperature is 55.9°F (13.3°C).

What is the average humidity in August?

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

How many days does it rain in August?

In August, the rain falls for 1.6 days. Throughout August, 0.08" (2mm) of precipitation is accumulated.

When it does not snow?

In Foresthill, snow does not fall in June through October.

What is the average length of the day in August?

In August, the average day length is 13h and 38min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:34 pm PDT.

How many hours of sunshine does Foresthill have in August?

The average sunshine duration in August is 11.9h.

When is the highest UV index in Foresthill?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index reading in August?

In Foresthill, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Foresthill, CA

Average temperature in August - Foresthill, CA
  • Average high temperature in August: 86.9°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (49.1°F).

  • Average low temperature in August: 55.9°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

Average pressure in August
Foresthill, CA

Average pressure in August - Foresthill, CA
  • Average pressure in August: 29.92"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
Foresthill, CA

Average wind speed in August - Foresthill, 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
Foresthill, CA

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

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is July (38%).

Average rainfall in August
Foresthill, CA

Average rainfall in August - Foresthill, CA
  • Average rainfall in August: 0.08"

The wettest month (with the highest rainfall) is March (7.01").
The driest month (with the least rainfall) is July (0.04").

Average rainfall days in August
Foresthill, CA

Average rainfall days in August - Foresthill, CA
  • Average rainfall days in August: 1.6 days

The month with the highest number of rainy days is March (13.9 days).
The month with the least rainy days is July (1.4 days).

Average snowfall in August
Foresthill, CA

Average snowfall in August - Foresthill, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (17.87").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Foresthill, CA

Average snowfall days in August - Foresthill, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is March (5.4 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
Foresthill, CA

Average daylight in August / Average sunshine in August - Foresthill, 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: 11h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in August
Foresthill, CA

Average sunshine days in August - Foresthill, CA
  • Average sunshine days in August: 28.3 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.5 days).

Average UV index in August
Foresthill, CA

Average UV index in August - Foresthill, CA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).

Average cloud cover in August
Foresthill, CA

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

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in August
Foresthill, CA

Average visibility in August - Foresthill, 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).

Foresthill, California, USA

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