May weather forecast
Cassel, CA

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Weather in May

The last month of the spring, May, is an enjoyable month in Cassel, California, with an average temperature fluctuating between 40.6°F (4.8°C) and 66.9°F (19.4°C).

Temperature

A shift in the average high-temperature is noticeable in May, changing from a mild 57.7°F (14.3°C) in April to a comfortable 66.9°F (19.4°C). Nightly readings in May display a noticeable downturn from daily highs, with the average low-temperature registering an icy 40.6°F (4.8°C).

Humidity

In May, the average relative humidity is 60%.

Rainfall

In Cassel, during May, the rain falls for 11.5 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 105 rainfall days, and 24.69" (627mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in May is 14h and 29min.
On the first day of May, sunrise is at 6:03 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:31 pm PDT.

Sunshine

The average sunshine in May in Cassel is 11.1h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 4 during May translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

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

What is the average humidity in May in Cassel?

In May, the average relative humidity is 60%.

How many days does it rain in May?

In Cassel, during May, the rain falls for 11.5 days and regularly aggregates up to 2.2" (56mm) of precipitation.

What is the last month it snows?

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

What is the average length of the day in May in Cassel?

In Cassel, the average day length in May is 14h and 29min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:03 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:31 pm PDT.

How long on average sun shines in May?

In Cassel, the average sunshine duration in May is 11.1h.

What is the UV index reading in May?

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Cassel, CA

Average temperature in May - Cassel, 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
Cassel, CA

Average pressure in May - Cassel, 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
Cassel, CA

Average wind speed in May - Cassel, 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
Cassel, CA

Average humidity in May - Cassel, 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
Cassel, CA

Average rainfall in May - Cassel, 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
Cassel, CA

Average rainfall days in May - Cassel, 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
Cassel, CA

Average snowfall in May - Cassel, 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
Cassel, CA

Average snowfall days in May - Cassel, 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
Cassel, CA

Average daylight in May / Average sunshine in May - Cassel, 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 18min).

  • 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
Cassel, CA

Average sunshine days in May - Cassel, 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
Cassel, CA

Average UV index in May - Cassel, 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
Cassel, CA

Average cloud cover in May - Cassel, 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
Cassel, CA

Average visibility in May - Cassel, 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).

Cassel, California, USA

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