May weather forecast and climate
Spring Valley, CA

Weather in May

The last month of the spring, May, is another pleasant month in Spring Valley, California, with average temperature varying between 71.1°F (21.7°C) and 54.5°F (12.5°C).

Temperature

In May, the average high-temperature is almost the same as in April - a still pleasant 71.1°F (21.7°C). The average low-temperature, in May, is 54.5°F (12.5°C).

Humidity

With an average relative humidity of 67%, May is the most humid month in Spring Valley.

Rainfall

In Spring Valley, during May, the rain falls for 3 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Spring Valley, during the entire year, the rain falls for 33 days and collects up to 2.52" (64mm) of precipitation.

Daylight

The average length of the day in May is 13.9h.

Sunshine

In Spring Valley, the average sunshine is 10.7h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Spring Valley?

In May, in Spring Valley, California, the average high-temperature is 71.1°F (21.7°C), and the average low-temperature is 54.5°F (12.5°C).

What is the most humid month in Spring Valley?

The most humid month in Spring Valley is May, with an average relative humidity of 67%.

What is the average humidity in May in Spring Valley?

In May, the average relative humidity in Spring Valley is 67%.

How much does it rain in Spring Valley in May?

In Spring Valley, California, during May, the rain falls for 3 days and regularly aggregates up to 0.2" (5mm) of precipitation.

How many hours of daylight does Spring Valley have in May?

The average length of the day in May in Spring Valley, California, is 13.9h.

How many hours of sunshine does Spring Valley have in May?

In May, the average sunshine in Spring Valley, California, is 10.7h.

What is the UV index reading in May in Spring Valley?

The average daily maximum UV index in May in Spring Valley is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in May
Spring Valley, CA

Average temperature in May - Spring Valley, CA
  • Average high temperature in May: 71.1°F

The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (64.4°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).

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Average pressure in May
Spring Valley, CA

Average pressure in May - Spring Valley, CA
  • Average pressure in May: 29.91"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in May
Spring Valley, CA

Average wind speed in May - Spring Valley, CA
  • Average wind speed in May: 5.5mph

The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is October (4.5mph).

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Average humidity in May
Spring Valley, CA

Average humidity in May - Spring Valley, CA
  • Average humidity in May: 67%

The month with the highest relative humidity is May (67%).
The month with the lowest relative humidity is November (54%).

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Average rainfall in May
Spring Valley, CA

Average rainfall in May - Spring Valley, CA
  • Average rainfall in May: 0.2"

The wettest month (with the highest rainfall) is February (0.55").
The driest months (with the least rainfall) are June, July and October (0.04").

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Average rainfall days in May
Spring Valley, CA

Average rainfall days in May - Spring Valley, CA
  • Average rainfall days in May: 3 days

The month with the highest number of rainy days is March (5.3 days).
The month with the least rainy days is June (0.8 days).

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Average daylight in May /
Average sunshine in May
Spring Valley, CA

Average daylight in May / Average sunshine in May - Spring Valley, CA
  • Average daylight in May: 13.9h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in May: 10.7h

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are February and December (Average sunshine: 6.7).

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Average sunshine days in May
Spring Valley, CA

Average sunshine days in May - Spring Valley, CA
  • Average sunshine days in May: 26.3 days

The month with the most sunshine days is October (28.9 days).
The month with the least sunshine days is February (23.4 days).

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Average UV index in May
Spring Valley, CA

Average UV index in May - Spring Valley, CA
  • Average UV index in May: 5

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in May
Spring Valley, CA

Average cloud cover in May - Spring Valley, CA
  • Average cloud cover in May: 22

Months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in May
Spring Valley, CA

Average visibility in May - Spring Valley, 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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