May weather forecast and climate
Arcadia, CA

Weather in May

May, the last month of the spring, in Arcadia, is a warm month, with average temperature fluctuating between 53.8°F (12.1°C) and 75.4°F (24.1°C).

Temperature

In Arcadia, the average high-temperature in May is essentially the same as in April - a moderately hot 75.4°F (24.1°C). The average low-temperature, in Arcadia, is 53.8°F (12.1°C).

Humidity

Months with the highest humidity in Arcadia are March, May and June, with an average relative humidity of 56%.

Rainfall

In Arcadia, in May, it is raining for 3.4 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, there are 48.7 rainfall days, and 7.48" (190mm) of precipitation is accumulated.

Daylight

In Arcadia, California, the average length of the day is 14h.

Sunshine

In May, the average sunshine in Arcadia is 11.7h.

UV index

In Arcadia, California, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
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 Arcadia?

In Arcadia, in May, the average high-temperature is 75.4°F (24.1°C), and the average low-temperature is 53.8°F (12.1°C).

What is the most humid month in Arcadia?

Months with the highest humidity are March, May and June, with an average relative humidity of 56%.

What is the average humidity in May in Arcadia?

In May, the average relative humidity in Arcadia, California, is 56%.

How much does it rain in Arcadia in May?

In Arcadia, during May, the rain falls for 3.4 days and regularly aggregates up to 0.2" (5mm) of precipitation.

How many hours of daylight does Arcadia have in May?

The average length of the day in May is 14h.

How long on average sun shines in May in Arcadia?

In May, the average sunshine in Arcadia, California, is 11.7h.

What is the UV index reading in May in Arcadia?

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

Average temperature in May
Arcadia, CA

Average temperature in May - Arcadia, CA
  • Average high temperature in May: 75.4°F

The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (62.1°F).

  • Average low temperature in May: 53.8°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).

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Average pressure in May
Arcadia, CA

Average pressure in May - Arcadia, CA
  • Average pressure in May: 29.92"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in May
Arcadia, CA

Average wind speed in May - Arcadia, CA
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in May
Arcadia, CA

Average humidity in May - Arcadia, CA
  • Average humidity in May: 56%

Months with the highest relative humidity are March, May and June (56%).
The month with the lowest relative humidity is November (46%).

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Average rainfall in May
Arcadia, CA

Average rainfall in May - Arcadia, CA
  • Average rainfall in May: 0.2"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Arcadia, CA

Average rainfall days in May - Arcadia, CA
  • Average rainfall days in May: 3.4 days

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.3 days).

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

Average daylight in May / Average sunshine in May - Arcadia, CA
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 11.7h

The month with the most sunshine is July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.9).

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Average sunshine days in May
Arcadia, CA

Average sunshine days in May - Arcadia, CA
  • Average sunshine days in May: 25.7 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (22 days).

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Average UV index in May
Arcadia, CA

Average UV index in May - Arcadia, CA
  • Average UV index in May: 5

Months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Arcadia, CA

Average cloud cover in May - Arcadia, CA
  • Average cloud cover in May: 12

Months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in May
Arcadia, CA

Average visibility in May - Arcadia, 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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