May weather forecast
Arcadia, CA

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Weather in May

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

Temperature

Arcadia ushers in May with an average high-temperature of a moderately hot 75.4°F (24.1°C), showing a close resemblance to the previous month. Arcadia in May observes a substantial swing from the daily highs, with average nighttime temperatures of 53.8°F (12.1°C).

Humidity

March, May and June, with an average relative humidity of 56%, are the most humid months.

Rainfall

In Arcadia, California, in May, during 3.4 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. In Arcadia, during the entire year, the rain falls for 48.7 days and collects up to 7.48" (190mm) of precipitation.

Daylight

In May, the average length of the day in Arcadia is 13h and 57min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:36 pm. On the last day of May, sunrise is at 5:41 am and sunset at 7:58 pm PDT.

Sunshine

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

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 5 during May translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in Arcadia, records 75.4°F (24.1°C), while the low-temperature is 53.8°F (12.1°C).

What is the most humid month in Arcadia?

March, May and June, with an average relative humidity of 56%, are most humid months.

What is the average humidity in May in Arcadia?

The average relative humidity in May is 56%.

How many days does it rain in May in Arcadia?

In Arcadia, in May, it is raining for 3.4 days, with typically 0.2" (5mm) of accumulated precipitation.

What is the average length of the day in May?

In Arcadia, the average day length in May is 13h and 57min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:58 pm PDT.

How long on average sun shines in May?

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

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).

Average pressure in May
Arcadia, CA

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

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

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).

Average humidity in May
Arcadia, CA

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

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

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").

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).

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 and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 11h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).

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).

Average UV index in May
Arcadia, CA

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

The 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).

Average cloud cover in May
Arcadia, CA

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

The 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).

Average visibility in May
Arcadia, CA

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

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

Arcadia, California, USA

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