Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
In the transition from April to May, Los Altos Hills reports an average high-temperature of a still comfortable 64.9°F (18.3°C), indicating a close resemblance to the prior month. Throughout May nights, Los Altos Hills experiences a consistent temperature average of 50.2°F (10.1°C).Humidity
The average relative humidity in May is 74%.Rainfall
In Los Altos Hills, in May, during 3.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, in Los Altos Hills, there are 57.5 rainfall days, and 4.76" (121mm) of precipitation is accumulated.Daylight
In May, the average length of the day is 14h and 12min.On the first day of May, sunrise is at 6:12 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:23 pm PDT.
Sunshine
The average sunshine in May is 10.7h.UV index
The average daily maximum UV index in May in Los Altos Hills is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 during May translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
How many hours of daylight does Los Altos Hills have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Los Altos Hills have in May?
How high is the UV index in May in Los Altos Hills?
Average temperature in May
Los Altos Hills, CA
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (55.8°F).
- Average low temperature in May: 50.2°F
The months with the highest average low temperature are August and September (56.7°F).
The coldest months (with the lowest average low temperature) are January and February (46.4°F).
Average pressure in May
Los Altos Hills, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in May
Los Altos Hills, CA
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Los Altos Hills, CA
- Average humidity in May: 74%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Los Altos Hills, CA
- Average rainfall in May: 0.31"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Los Altos Hills, CA
- Average rainfall days in May: 3.8 days
The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is June (0.9 days).
Average daylight in May /
Average sunshine in May
Los Altos Hills, CA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in May
Los Altos Hills, CA
- Average sunshine days in May: 22.9 days
The months with the most sunshine days are June and July (26.3 days).
The month with the least sunshine days is March (18.3 days).
Average UV index in May
Los Altos Hills, CA
- Average UV index in May: 4
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in May
Los Altos Hills, CA
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Los Altos 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).
Los Altos Hills, California, USA
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