May weather forecastRolling Hills, CA
May
Weather in May
The last month of the spring, May, is another refreshing month in Rolling Hills, California, with an average temperature fluctuating between 65.5°F (18.6°C) and 56.5°F (13.6°C).Temperature
The start of May marks an average high-temperature of a still refreshing 65.5°F (18.6°C), hardly distinguishable from the conditions in April. Rolling Hills experiences a steady low-temperature of 56.5°F (13.6°C) throughout May.Humidity
In May, the average relative humidity is 74%.Rainfall
In Rolling Hills, in May, during 4.7 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, there are 62.1 rainfall days, and 8.62" (219mm) of precipitation is accumulated.Daylight
The average length of the day in May is 13h and 56min.On the first day of May, sunrise is at 6:03 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 7:58 pm PDT.
Sunshine
In May, the average sunshine is 10.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rolling Hills, CA
- Average high temperature in May: 65.5°F
The warmest months (with the highest average high temperature) are August and September (73.2°F).
The month with the lowest average high temperature is February (61.5°F).
- Average low temperature in May: 56.5°F
The month with the highest average low temperature is September (64.2°F).
The coldest month (with the lowest average low temperature) is February (53.2°F).
Average pressure in May
Rolling Hills, CA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in May
Rolling Hills, CA
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in May
Rolling Hills, CA
- Average humidity in May: 74%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is November (61%).
Average rainfall in May
Rolling Hills, CA
- Average rainfall in May: 0.28"
The wettest month (with the highest rainfall) is January (1.73").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in May
Rolling Hills, CA
- Average rainfall days in May: 4.7 days
The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is August (3.1 days).
Average daylight in May /
Average sunshine in May
Rolling Hills, CA
- Average daylight in May: 13h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 10h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days in May
Rolling Hills, CA
- Average sunshine days in May: 23.3 days
The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is June (20 days).
Average UV index in May
Rolling Hills, CA
- Average UV index in May: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in May
Rolling Hills, CA
- Average cloud cover in May: 22
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in May
Rolling Hills, 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).





