May weather forecast and climate
Calpella, CA

Weather in May

The last month of the spring, May, is a pleasant month in Calpella, California, with average temperature varying between 45.1°F (7.3°C) and 69.1°F (20.6°C).

Temperature

In Calpella, the average high-temperature in May slightly increases, from a comfortable 63.1°F (17.3°C) in April, to an agreeable 69.1°F (20.6°C). In May, the average low-temperature is 45.1°F (7.3°C).

Humidity

In May, the average relative humidity in Calpella is 69%.

Rainfall

In Calpella, during May, the rain falls for 5.7 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, in Calpella, there are 83.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

Snowfall

In Calpella snow does not fall in January, March through December.

Daylight

The average length of the day in Calpella is 14.4h.

Sunshine

The average sunshine in Calpella is 10.5h.

UV index

In Calpella, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 Calpella?

In Calpella, California, in May, the average high-temperature is 69.1°F (20.6°C), and the average low-temperature is 45.1°F (7.3°C).

What is the average humidity in May in Calpella?

In Calpella, the average relative humidity in May is 69%.

How much does it rain in Calpella in May?

In Calpella, California, in May, during 5.7 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in Calpella?

January, March through December are months without snowfall in Calpella, California.

How many hours of daylight does Calpella have in May?

In May, the average length of the day in Calpella, California, is 14.4h.

How long on average sun shines in May in Calpella?

In May, the average sunshine in Calpella is 10.5h.

What is the UV index reading in May in Calpella?

In Calpella, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in May
Calpella, CA

Average temperature in May - Calpella, CA
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in May: 45.1°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

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Average pressure in May
Calpella, CA

Average pressure in May - Calpella, 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
Calpella, CA

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

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity in May
Calpella, CA

Average humidity in May - Calpella, CA
  • Average humidity in May: 69%

The month with the highest relative humidity is March (79%).
Months with the lowest relative humidity are July and September (58%).

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Average rainfall in May
Calpella, CA

Average rainfall in May - Calpella, CA
  • Average rainfall in May: 1.02"

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in May
Calpella, CA

Average rainfall days in May - Calpella, CA
  • Average rainfall days in May: 5.7 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

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Average snowfall in May
Calpella, CA

Average snowfall in May - Calpella, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.04").
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 May
Calpella, CA

Average snowfall days in May - Calpella, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.3 days).
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 May /
Average sunshine in May
Calpella, CA

Average daylight in May / Average sunshine in May - Calpella, CA
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in May: 10.5h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in May
Calpella, CA

Average sunshine days in May - Calpella, CA
  • Average sunshine days in May: 23 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in May
Calpella, CA

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

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are February and November (UV index 2).

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Average cloud cover in May
Calpella, CA

Average cloud cover in May - Calpella, CA
  • Average cloud cover in May: 29

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in May
Calpella, CA

Average visibility in May - Calpella, CA
  • Average visibility in May: 6mi

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

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