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 snowfall in May
- Average snowfall 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
As Acton transitions into May, a marginal rise in the average high-temperature is observed, moving from an agreeable 68.5°F (20.3°C) in April to a warm 74.1°F (23.4°C). Throughout May, Acton registers a distinct decrease from daytime highs, reaching an average low of 50.4°F (10.2°C).Humidity
In Acton, California, the average relative humidity in May is 50%.Rainfall
In Acton, California, in May, during 3.4 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Acton, during the entire year, the rain falls for 51.4 days and collects up to 7.6" (193mm) of precipitation.Snowfall
In Acton, snow does not fall in May through October.Daylight
In May, the average length of the day in Acton is 13h and 59min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:37 pm. On the last day of May, in Acton, sunrise is at 5:41 am and sunset at 7:59 pm PDT.
Sunshine
In Acton, the average sunshine in May is 11.8h.UV index
In Acton, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In May, a daily UV index of 5 turns into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Acton in May?
What is the average humidity in May in Acton?
How much does it rain in Acton in May?
When it does not snow in Acton?
Does it snow in Acton in May?
How many hours of daylight does Acton have in May?
When are sunrise and sunset in May in Acton?
How many hours of sunshine does Acton have in May?
What is the UV index reading in May in Acton?
Average temperature in May
Acton, CA
- Average high temperature in May: 74.1°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in May: 50.4°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in May
Acton, CA
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Acton, 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 September (5.7mph).
Average humidity in May
Acton, CA
- Average humidity in May: 50%
The months with the highest relative humidity are February, March and December (54%).
The month with the lowest relative humidity is August (38%).
Average rainfall in May
Acton, CA
- Average rainfall in May: 0.16"
The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Acton, CA
- Average rainfall days in May: 3.4 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.2 days).
Average snowfall in May
Acton, CA
- Average snowfall in May: 0"
The month with the highest snowfall is December (3.23").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Acton, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Acton, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in May
Acton, CA
- Average sunshine days in May: 26.8 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in May
Acton, CA
- Average UV index in May: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Acton, CA
- Average cloud cover in May: 11
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
Acton, 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).
Acton, California, USA
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