November weather forecast and climate
Saint Helena, CA

Weather in November

The last month of the autumn, November, is also an enjoyable month in Saint Helena, California, with average temperature fluctuating between 44.1°F (6.7°C) and 63.5°F (17.5°C).

Temperature

In November, the average high-temperature drops, from a warm 75°F (23.9°C) in October, to an enjoyable 63.5°F (17.5°C). In November, the average low-temperature is 44.1°F (6.7°C).

Humidity

In November, the average relative humidity in Saint Helena, California, is 67%.

Rainfall

In November, the rain falls for 7.4 days. Throughout November, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 76.2 rainfall days, and 16.93" (430mm) of precipitation is accumulated.

Snowfall

In Saint Helena snow does not fall in January, February, April through December.

Daylight

In November, the average length of the day in Saint Helena is 10.1h.

Sunshine

In Saint Helena, California, the average sunshine in November is 6.1h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 November in Saint Helena?

In November, in Saint Helena, California, the average high-temperature is 63.5°F (17.5°C), and the average low-temperature is 44.1°F (6.7°C).

What is the average humidity in November in Saint Helena?

In November, the average relative humidity in Saint Helena is 67%.

How many days does it rain in November in Saint Helena?

In November, in Saint Helena, the rain falls for 7.4 days. Throughout November, 1.57" (40mm) of precipitation is accumulated.

When it does not snow in Saint Helena?

January, February, April through December are months without snowfall.

What is the average length of the day in November in Saint Helena?

In Saint Helena, California, the average length of the day in November is 10.1h.

How many hours of sunshine does Saint Helena have in November?

The average sunshine in November is 6.1h.

What are the months with the lowest UV index in Saint Helena?

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the UV index intensity in November in Saint Helena?

The average daily maximum UV index in November in Saint Helena, California, is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in November
Saint Helena, CA

Average temperature in November - Saint Helena, CA
  • Average high temperature in November: 63.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in November: 44.1°F

The month with the highest average low temperature is September (54.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).

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Average pressure in November
Saint Helena, CA

Average pressure in November - Saint Helena, CA
  • Average pressure in November: 30.07"

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

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Average wind speed in November
Saint Helena, CA

Average wind speed in November - Saint Helena, CA
  • Average wind speed in November: 4.3mph

The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).

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Average humidity in November
Saint Helena, CA

Average humidity in November - Saint Helena, CA
  • Average humidity in November: 67%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (53%).

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Average rainfall in November
Saint Helena, CA

Average rainfall in November - Saint Helena, CA
  • Average rainfall in November: 1.57"

The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is July (0").

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Average rainfall days in November
Saint Helena, CA

Average rainfall days in November - Saint Helena, CA
  • Average rainfall days in November: 7.4 days

The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (0.3 days).

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Average snowfall in November
Saint Helena, CA

Average snowfall in November - Saint Helena, CA
  • Average snowfall in November: 0"

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

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Average snowfall days in November
Saint Helena, CA

Average snowfall days in November - Saint Helena, CA
  • Average snowfall days in November: 0 days

The month with the highest number of snowfall days is March (0.2 days).
Months with the least snowfall days are January, February, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in November /
Average sunshine in November
Saint Helena, CA

Average daylight in November / Average sunshine in November - Saint Helena, CA
  • Average daylight in November: 10.1h

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 November: 6.1h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in November
Saint Helena, CA

Average sunshine days in November - Saint Helena, CA
  • Average sunshine days in November: 22.1 days

The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in November
Saint Helena, CA

Average UV index in November - Saint Helena, CA
  • Average UV index in November: 3

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 November
Saint Helena, CA

Average cloud cover in November - Saint Helena, CA
  • Average cloud cover in November: 31

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in November
Saint Helena, CA

Average visibility in November - Saint Helena, CA
  • Average visibility in November: 6mi

Months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January and March (5mi).

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