May weather forecast and climate
Ross, CA

Weather in May

The last month of the spring, May, is another comfortable month in Ross, California, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 64.9°F (18.3°C).

Temperature

In Ross, the average high-temperature in May is essentially the same as in April - a still comfortable 64.9°F (18.3°C). In May, the average low-temperature is 50.4°F (10.2°C).

Humidity

In Ross, the average relative humidity is 75%.

Rainfall

In Ross, in May, during 3.3 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

Daylight

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

Sunshine

In Ross, the average sunshine in May is 10h.

UV index

The average daily maximum UV index in Ross is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Ross?

In Ross, in May, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 50.4°F (10.2°C).

What is the average humidity in May in Ross?

In May, the average relative humidity in Ross, California, is 75%.

How much does it rain in Ross in May?

In May, in Ross, California, the rain falls for 3.3 days. Throughout May, 0.28" (7mm) of precipitation is accumulated.

How many hours of daylight does Ross have in May?

The average length of the day in May is 14.3h.

How long on average sun shines in May in Ross?

In May, the average sunshine in Ross is 10h.

What is the UV index reading in May in Ross?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in May
Ross, CA

Average temperature in May - Ross, CA
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in May: 50.4°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure in May
Ross, CA

Average pressure in May - 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
Ross, CA

Average wind speed in May - Ross, CA
  • Average wind speed in May: 7.8mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

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Average humidity in May
Ross, CA

Average humidity in May - Ross, CA
  • Average humidity in May: 75%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in May
Ross, CA

Average rainfall in May - Ross, CA
  • Average rainfall in May: 0.28"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in May
Ross, CA

Average rainfall days in May - Ross, CA
  • Average rainfall days in May: 3.3 days

The month with the highest number of rainy days is March (8.8 days).
Months with the least rainy days are June and August (1.2 days).

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

Average daylight in May / Average sunshine in May - 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: 9.6h).

  • Average sunshine in May: 10h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in May
Ross, CA

Average sunshine days in May - Ross, CA
  • Average sunshine days in May: 24.7 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index in May
Ross, CA

Average UV index in May - Ross, CA
  • Average UV index in May: 4

Months with the highest UV index are April, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in May
Ross, CA

Average cloud cover in May - Ross, CA
  • Average cloud cover in May: 31

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in May
Ross, CA

Average visibility in May - 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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