October weather forecast and climate
Healdsburg, CA

Neat rows of plants in a farm with a view of a red farmhouse up the hill in Healdsburg, California
Neat rows of plants in a farm with a view of a red farmhouse up the hill in Healdsburg, California

Weather in October

October, like September, in Healdsburg, California, is a moderately hot autumn month, with average temperature varying between 73.8°F (23.2°C) and 50.4°F (10.2°C).

Temperature

In October, the average high-temperature slightly decreases, from a moderately hot 82.6°F (28.1°C) in September, to a still warm 73.8°F (23.2°C). The average low-temperature, in Healdsburg, California, is 50.4°F (10.2°C).

Humidity

In Healdsburg, the average relative humidity is 60%.

Rainfall

In October, in Healdsburg, California, the rain falls for 5.3 days. Throughout October, 1.06" (27mm) of precipitation is accumulated. In Healdsburg, during the entire year, the rain falls for 81.2 days and collects up to 19.84" (504mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In Healdsburg, the average length of the day is 11.2h.

Sunshine

The average sunshine in October is 6.9h.

UV index

In October, the average daily maximum UV index in Healdsburg is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: In October, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in October in Healdsburg?

In October, in Healdsburg, California, the average high-temperature is 73.8°F (23.2°C), and the average low-temperature is 50.4°F (10.2°C).

What is the average humidity in October in Healdsburg?

In Healdsburg, the average relative humidity in October is 60%.

How much does it rain in Healdsburg in October?

In Healdsburg, in October, during 5.3 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When it does not snow in Healdsburg?

In Healdsburg snow does not fall in January, March through December.

How many hours of daylight does Healdsburg have in October?

In Healdsburg, California, the average length of the day in October is 11.2h.

How many hours of sunshine does Healdsburg have in October?

The average sunshine in October in Healdsburg is 6.9h.

What is the UV index intensity in October in Healdsburg?

The average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in October
Healdsburg, CA

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

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in October: 50.4°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

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Average pressure in October
Healdsburg, CA

Average pressure in October - Healdsburg, CA
  • Average pressure in October: 29.99"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in October
Healdsburg, CA

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

The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

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Average humidity in October
Healdsburg, CA

Average humidity in October - Healdsburg, CA
  • Average humidity in October: 60%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (57%).

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Average rainfall in October
Healdsburg, CA

Average rainfall in October - Healdsburg, CA
  • Average rainfall in October: 1.06"

The wettest month (with the highest rainfall) is February (4.33").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in October
Healdsburg, CA

Average rainfall days in October - Healdsburg, CA
  • Average rainfall days in October: 5.3 days

The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall in October
Healdsburg, CA

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

The month with the highest snowfall is February (0.04").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in October
Healdsburg, CA

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

The month with the highest number of snowfall days is February (0.1 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in October / Average sunshine in October - Healdsburg, CA
  • Average daylight in October: 11.2h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in October: 6.9h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.6h).

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Average sunshine days in October
Healdsburg, CA

Average sunshine days in October - Healdsburg, CA
  • Average sunshine days in October: 24.6 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).

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Average UV index in October
Healdsburg, CA

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in October
Healdsburg, CA

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

The month with the most cloud cover is March (Cloud cover 41).
Months with the least cloud cover are July and August (Cloud cover 6).

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Average visibility in October
Healdsburg, CA

Average visibility in October - Healdsburg, CA
  • Average visibility in October: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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