October weather forecast
Healdsburg, CA

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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, the same as September, is a moderately hot autumn month in Healdsburg, California, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 73.8°F (23.2°C).

Temperature

With the onset of October, Healdsburg's climate undergoes a slight change as the average high-temperature moves from 82.6°F (28.1°C) in September to a still warm 73.8°F (23.2°C). A striking departure from daytime highs to an average low-temperature of 50.4°F (10.2°C) is witnessed during October.

Humidity

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

Rainfall

In Healdsburg, in October, during 5.3 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Healdsburg, California, 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 October, the average length of the day in Healdsburg is 11h and 10min.
On the first day of October in Healdsburg, sunrise is at 7:08 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 6:12 pm PDT.

Sunshine

In Healdsburg, the average sunshine in October is 6.9h.

UV index

The average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In October, the average maximum UV index of 4 translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the average October temperature in Healdsburg?

The high-temperature, in October, in Healdsburg, records 73.8°F (23.2°C), while the low-temperature is 50.4°F (10.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 84.2°F (29°C).

What is the average humidity in October in Healdsburg?

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

How much does it rain in Healdsburg in October?

In Healdsburg, California, in October, it is raining for 5.3 days, with typically 1.06" (27mm) of accumulated precipitation.

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 October, the average day length in Healdsburg, California, is 11h and 10min.

What time are sunrise and sunset in October in Healdsburg?

On the first day of October in Healdsburg, sunrise is at 7:08 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 6:12 pm PDT.

How long on average sun shines in October in Healdsburg?

In October, the average sunshine duration in Healdsburg is 6.9h.

What is the UV index intensity in October in Healdsburg?

In October, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
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"Hg

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

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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").
The 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).
The 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: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
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 36min).

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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

The months with the highest UV index are June, July and August (UV index 6).
The 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).
The 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

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).

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Healdsburg, California, USA

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