May weather forecast
Running Springs, CA

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Weather in May

May, the last month of the spring in Running Springs, is an agreeable month, with an average temperature fluctuating between 73°F (22.8°C) and 50.5°F (10.3°C).

Temperature

The arrival of May witnesses a small shift in the average high-temperature, moving from an enjoyable 66.9°F (19.4°C) in April to a pleasant 73°F (22.8°C). A considerable shift from the daytime highs is observed during May nights, with an average low of 50.5°F (10.3°C).

Humidity

In Running Springs, the average relative humidity in May is 47%.

Rainfall

In Running Springs, in May, it is raining for 4.3 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 42.2 rainfall days, and 5.55" (141mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.8 snowfall days, in May, Running Springs aggregates 0.31" (8mm) of snow. In Running Springs, during the entire year, snow falls for 15.6 days and aggregates up to 18.35" (466mm) of snow.

Daylight

The average length of the day in May is 13h and 58min.
On the first day of the month, sunrise is at 5:57 am and sunset at 7:32 pm. On the last day of May, sunrise is at 5:37 am and sunset at 7:54 pm PDT.

Sunshine

In Running Springs, the average sunshine in May is 11.8h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 5 during May leads to these advisories:
Ensure safety - Recommendations to avert sunburn are presented. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

During May, Running Springs experiences an average high-temperature of 73°F (22.8°C) and a low-temperature of 50.5°F (10.3°C).

What is the average humidity in May?

In May, the average relative humidity is 47%.

How many days does it rain in May?

In May, the rain falls for 4.3 days. Throughout May, 0.31" (8mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.8 snowfall days, in May, Running Springs aggregates 0.31" (8mm) of snow.

What is the average length of the day in May?

The average day length in May is 13h and 58min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:57 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:54 pm PDT.

How long on average sun shines in May?

The average sunshine duration in May is 11.8h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Running Springs, CA

Average temperature in May - Running Springs, CA
  • Average high temperature in May: 73°F

The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

Average pressure in May
Running Springs, CA

Average pressure in May - Running Springs, CA
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in May
Running Springs, CA

Average wind speed in May - Running Springs, CA
  • Average wind speed in May: 7.2mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).

Average humidity in May
Running Springs, CA

Average humidity in May - Running Springs, CA
  • Average humidity in May: 47%

The months with the highest relative humidity are February and December (52%).
The month with the lowest relative humidity is August (32%).

Average rainfall in May
Running Springs, CA

Average rainfall in May - Running Springs, CA
  • Average rainfall in May: 0.31"

The wettest month (with the highest rainfall) is February (1.1").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in May
Running Springs, CA

Average rainfall days in May - Running Springs, CA
  • Average rainfall days in May: 4.3 days

The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is June (1.2 days).

Average snowfall in May
Running Springs, CA

Average snowfall in May - Running Springs, CA
  • Average snowfall in May: 0.31"

The month with the highest snowfall is April (4.09").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Running Springs, CA

Average snowfall days in May - Running Springs, CA
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Running Springs, CA

Average daylight in May / Average sunshine in May - Running Springs, 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 5min

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

Average sunshine days in May
Running Springs, CA

Average sunshine days in May - Running Springs, CA
  • Average sunshine days in May: 25 days

The month with the most sunshine days is June (27.9 days).
The month with the least sunshine days is February (21.8 days).

Average UV index in May
Running Springs, CA

Average UV index in May - Running Springs, CA
  • Average UV index in May: 5

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

Average cloud cover in May
Running Springs, CA

Average cloud cover in May - Running Springs, CA
  • Average cloud cover in May: 11

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

Average visibility in May
Running Springs, CA

Average visibility in May - Running Springs, 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).

Running Springs, California, USA

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