October weather forecast
Clearlake, CA

Share
A long footbridge over the marina in Clearlake, California
A long footbridge over the marina in Clearlake, California

Weather in October

October, the same as September, is a moderately hot autumn month in Clearlake, California, with an average temperature varying between 49.6°F (9.8°C) and 73.8°F (23.2°C).

Temperature

The onset of October comes with a shift in the average high-temperature, falling from 85.1°F (29.5°C) in September to a still warm 73.8°F (23.2°C). During October, Clearlake notes a substantial drop from the daytime peak to an average minimum temperature of 49.6°F (9.8°C).

Humidity

In Clearlake, the average relative humidity in October is 52%.

Rainfall

In Clearlake, in October, during 4.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 79.8 rainfall days, and 17.44" (443mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Clearlake, California, the average length of the day in October is 11h and 10min.
On the first day of the month, sunrise is at 7:07 am and sunset at 6:52 pm. On the last day of October, sunrise is at 7:37 am and sunset at 6:10 pm PDT.

Sunshine

The average sunshine in October is 6.9h.

UV index

The average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: In October, the UV index of 4 transforms into the following advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What are the temperatures in October?

In Clearlake, 73.8°F (23.2°C) is the average high-temperature and 49.6°F (9.8°C) is the average low-temperature during October. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 86°F (30°C).

What is the average humidity in October in Clearlake?

In Clearlake, the average relative humidity in October is 52%.

How much does it rain in October?

In Clearlake, in October, during 4.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

When it does not snow in Clearlake?

In Clearlake, snow does not fall in April through October.

Does it snow in October?

In Clearlake, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October?

In Clearlake, the average day length in October is 11h and 10min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:07 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:10 pm PDT.

How long on average sun shines in October?

In October, the average sunshine duration is 6.9h.

How high is the UV index in October?

In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from 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 October
Clearlake, CA

Average temperature in October - Clearlake, CA
  • Average high temperature in October: 73.8°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (52.7°F).

  • Average low temperature in October: 49.6°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).

Average pressure in October
Clearlake, CA

Average pressure in October - Clearlake, CA
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed in October
Clearlake, CA

Average wind speed in October - Clearlake, CA
  • Average wind speed in October: 4.7mph

The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).

Average humidity in October
Clearlake, CA

Average humidity in October - Clearlake, CA
  • Average humidity in October: 52%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (44%).

Average rainfall in October
Clearlake, CA

Average rainfall in October - Clearlake, CA
  • Average rainfall in October: 0.94"

The wettest month (with the highest rainfall) is February (3.7").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in October
Clearlake, CA

Average rainfall days in October - Clearlake, CA
  • Average rainfall days in October: 4.6 days

The month with the highest number of rainy days is March (13.9 days).
The months with the least rainy days are July and August (1.1 days).

Average snowfall in October
Clearlake, CA

Average snowfall in October - Clearlake, CA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
Clearlake, CA

Average snowfall days in October - Clearlake, CA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in October /
Average sunshine in October
Clearlake, CA

Average daylight in October / Average sunshine in October - Clearlake, CA
  • Average daylight in October: 11h and 1min

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 October: 6h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in October
Clearlake, CA

Average sunshine days in October - Clearlake, CA
  • Average sunshine days in October: 25.5 days

The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.8 days).

Average UV index in October
Clearlake, CA

Average UV index in October - Clearlake, CA
  • Average UV index in October: 4

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

Average cloud cover in October
Clearlake, CA

Average cloud cover in October - Clearlake, CA
  • Average cloud cover in October: 18

The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in October
Clearlake, CA

Average visibility in October - Clearlake, CA
  • Average visibility in October: 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).

Clearlake, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location