May weather forecast
Wheatons, CA

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Weather in May

May, the last month of the spring in Wheatons, is a warm month, with an average temperature ranging between max 79.2°F (26.2°C) and min 54.1°F (12.3°C).

Temperature

The arrival of May witnesses a small shift in the average high-temperature, moving from an agreeable 71.4°F (21.9°C) in April to a moderately hot 79.2°F (26.2°C). A noticeable downturn in temperature characterizes the May nights, averaging at a cool 54.1°F (12.3°C).

Humidity

In Wheatons, the average relative humidity in May is 44%.

Rainfall

In Wheatons, California, during May, the rain falls for 3.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Wheatons, during the entire year, the rain falls for 52.3 days and collects up to 9.37" (238mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Wheatons.

Daylight

In May, the average length of the day is 14h and 5min.
On the first day of May, sunrise is at 6:01 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:05 pm PDT.

Sunshine

The average sunshine in May is 11.7h.

UV index

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In May, in Wheatons, the average high-temperature is 79.2°F (26.2°C), and the average low-temperature is 54.1°F (12.3°C).

What is the average humidity in May in Wheatons?

In Wheatons, the average relative humidity in May is 44%.

How much does it rain in May?

In Wheatons, in May, during 3.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in May?

In May, the average day length is 14h and 5min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:01 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:05 pm PDT.

How many hours of sunshine does Wheatons have in May?

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 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Wheatons, CA

Average temperature in May - Wheatons, CA
  • Average high temperature in May: 79.2°F

The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (57.6°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is December (40.3°F).

Average pressure in May
Wheatons, CA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in May
Wheatons, CA

Average wind speed in May - Wheatons, CA
  • Average wind speed in May: 5.1mph

The windiest month (with the highest average wind speed) is June (5.2mph).
The calmest month (with the lowest average wind speed) is December (3.6mph).

Average humidity in May
Wheatons, CA

Average humidity in May - Wheatons, CA
  • Average humidity in May: 44%

The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is August (30%).

Average rainfall in May
Wheatons, CA

Average rainfall in May - Wheatons, CA
  • Average rainfall in May: 0.55"

The wettest month (with the highest rainfall) is March (1.93").
The driest months (with the least rainfall) are June and August (0.04").

Average rainfall days in May
Wheatons, CA

Average rainfall days in May - Wheatons, CA
  • Average rainfall days in May: 3.5 days

The month with the highest number of rainy days is March (9.3 days).
The month with the least rainy days is August (0.5 days).

Average snowfall days in May
Wheatons, CA

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

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in May / Average sunshine in May - Wheatons, CA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 11h and 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in May
Wheatons, CA

Average sunshine days in May - Wheatons, CA
  • Average sunshine days in May: 26.8 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.3 days).

Average UV index in May
Wheatons, CA

Average UV index in May - Wheatons, CA
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).

Average cloud cover in May
Wheatons, CA

Average cloud cover in May - Wheatons, CA
  • Average cloud cover in May: 13

The month with the most cloud cover is March (Cloud cover 24).
The months with the least cloud cover are July and August (Cloud cover 4).

Average visibility in May
Wheatons, CA

Average visibility in May - Wheatons, 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).

Wheatons, California, USA

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