May weather forecast and climate
Fort Ross, CA

Weather in May

May, the last month of the spring, in Fort Ross, is a pleasant month, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 47.5°F (8.6°C).

Temperature

In Fort Ross, the average high-temperature is relatively the same as in April - an agreeable 69.6°F (20.9°C). In Fort Ross, the average low-temperature is 47.5°F (8.6°C).

Humidity

In Fort Ross, the average relative humidity is 70%.

Rainfall

In Fort Ross, California, during 4.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Fort Ross, during the entire year, the rain falls for 60.1 days and collects up to 12.87" (327mm) of precipitation.

Daylight

In May, the average length of the day in Fort Ross, California, is 14.3h.

Sunshine

The average sunshine in Fort Ross is 10.2h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
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 May in Fort Ross?

In Fort Ross, in May, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 47.5°F (8.6°C).

What is the average humidity in May in Fort Ross?

In May, the average relative humidity in Fort Ross, California, is 70%.

How many days does it rain in May in Fort Ross?

In May, in Fort Ross, the rain falls for 4.8 days. Throughout May, 0.79" (20mm) of precipitation is accumulated.

How many hours of daylight does Fort Ross have in May?

In Fort Ross, the average length of the day in May is 14.3h.

How many hours of sunshine does Fort Ross have in May?

The average sunshine in May in Fort Ross, California, is 10.2h.

What is the UV index reading in May in Fort Ross?

In May, the average daily maximum UV index in Fort Ross is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in May
Fort Ross, CA

Average temperature in May - Fort Ross, CA
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in May: 47.5°F

Months with the highest average low temperature are August and September (53.4°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in May
Fort Ross, CA

Average pressure in May - Fort Ross, CA
  • Average pressure in May: 29.98"

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 May
Fort Ross, CA

Average wind speed in May - Fort Ross, CA
  • Average wind speed in May: 7.2mph

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest month (with the lowest average wind speed) is November (5mph).

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Average humidity in May
Fort Ross, CA

Average humidity in May - Fort Ross, CA
  • Average humidity in May: 70%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).

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Average rainfall in May
Fort Ross, CA

Average rainfall in May - Fort Ross, CA
  • Average rainfall in May: 0.79"

The wettest month (with the highest rainfall) is February (3.27").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in May
Fort Ross, CA

Average rainfall days in May - Fort Ross, CA
  • Average rainfall days in May: 4.8 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).

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Average daylight in May /
Average sunshine in May
Fort Ross, CA

Average daylight in May / Average sunshine in May - Fort Ross, CA
  • Average daylight in May: 14.3h

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 May: 10.2h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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Average sunshine days in May
Fort Ross, CA

Average sunshine days in May - Fort Ross, CA
  • Average sunshine days in May: 24.8 days

The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is February (19.9 days).

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Average UV index in May
Fort Ross, CA

Average UV index in May - Fort Ross, CA
  • Average UV index in May: 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 May
Fort Ross, CA

Average cloud cover in May - Fort Ross, CA
  • Average cloud cover in May: 29

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in May
Fort Ross, CA

Average visibility in May - Fort Ross, CA
  • Average visibility in May: 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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