May weather forecast
Demuth, CA

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Weather in May

The last month of the spring, May, is a comfortable month in Demuth, California, with temperature in the range of an average high of 66.9°F (19.4°C) and an average low of 40.6°F (4.8°C).

Temperature

As May arrives, Demuth's weather shows an increase in high-temperatures, moving from April's mild 57.7°F (14.3°C) to an enjoyable 66.9°F (19.4°C). May's nights exhibit a sharp contrast from day highs, with an average temperature of 40.6°F (4.8°C).

Humidity

In Demuth, the average relative humidity in May is 60%.

Rainfall

In Demuth, in May, it is raining for 11.5 days, with typically 2.2" (56mm) of accumulated precipitation. In Demuth, California, during the entire year, the rain falls for 105 days and collects up to 24.69" (627mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Demuth. May is the last month it regularly snows. During 0.4 snowfall days, in May, Demuth aggregates 0.2" (5mm) of snow. Throughout the year, in Demuth, there are 36.7 snowfall days, and 43.62" (1108mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 32min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:31 pm PDT.

Sunshine

In Demuth, the average sunshine in May is 11.1h.

UV index

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 4 in May suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature, in May, in Demuth, is 66.9°F (19.4°C), while the low-temperature averages to 40.6°F (4.8°C).

What is the average humidity in May?

The average relative humidity in May is 60%.

How many days does it rain in May?

In Demuth, in May, during 11.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.4 snowfall days, in May, Demuth aggregates 0.2" (5mm) of snow.

What is the average length of the day in May?

In Demuth, the average day length in May is 14h and 32min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:01 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:31 pm PDT.

How many hours of sunshine does Demuth have in May?

In May, the average sunshine duration is 11.1h.

How high is the UV index in May?

In Demuth, California, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Demuth, CA

Average temperature in May - Demuth, CA
  • Average high temperature in May: 66.9°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (43.3°F).

  • Average low temperature in May: 40.6°F

The month with the highest average low temperature is July (53.1°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).

Average pressure in May
Demuth, CA

Average pressure in May - Demuth, CA
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed in May
Demuth, CA

Average wind speed in May - Demuth, CA
  • Average wind speed in May: 5.4mph

The windiest month (with the highest average wind speed) is March (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in May
Demuth, CA

Average humidity in May - Demuth, CA
  • Average humidity in May: 60%

The months with the highest relative humidity are January and March (79%).
The months with the lowest relative humidity are July and August (40%).

Average rainfall in May
Demuth, CA

Average rainfall in May - Demuth, CA
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is March (4.45").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in May
Demuth, CA

Average rainfall days in May - Demuth, CA
  • Average rainfall days in May: 11.5 days

The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is August (2.3 days).

Average snowfall in May
Demuth, CA

Average snowfall in May - Demuth, CA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is March (10.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Demuth, CA

Average snowfall days in May - Demuth, CA
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is March (8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Demuth, CA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in May
Demuth, CA

Average sunshine days in May - Demuth, CA
  • Average sunshine days in May: 16.8 days

The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.3 days).

Average UV index in May
Demuth, CA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Demuth, CA

Average cloud cover in May - Demuth, CA
  • Average cloud cover in May: 24

The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 6).

Average visibility in May
Demuth, CA

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

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

Demuth, California, USA

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