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
Entering May, Downey's average high-temperature reads a still pleasant 73.2°F (22.9°C), indicating a close resemblance to the previous month's climate. Downey's average low-temperature in May is measured at a refreshing 56.8°F (13.8°C).Humidity
In May, the average relative humidity is 63%.Rainfall
In Downey, California, in May, during 3 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Downey, during the entire year, the rain falls for 46 days and collects up to 6.77" (172mm) of precipitation.Daylight
In Downey, the average length of the day in May is 13h and 56min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:36 pm. On the last day of May, sunrise is at 5:42 am and sunset at 7:58 pm PDT.
Sunshine
The average sunshine in May is 11.3h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 5 in May suggests the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How much does it rain in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Downey have in May?
What is the UV index reading in May?
Average temperature in May
Downey, CA
- Average high temperature in May: 73.2°F
The warmest month (with the highest average high temperature) is August (84°F).
The month with the lowest average high temperature is December (64.9°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure in May
Downey, CA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in May
Downey, CA
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).
Average humidity in May
Downey, CA
- Average humidity in May: 63%
The month with the highest relative humidity is June (65%).
The month with the lowest relative humidity is November (51%).
Average rainfall in May
Downey, CA
- Average rainfall in May: 0.16"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Downey, CA
- Average rainfall days in May: 3 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.3 days).
Average daylight in May /
Average sunshine in May
Downey, CA
- Average daylight in May: 13h and 5min
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 2min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in May
Downey, CA
- Average sunshine days in May: 25.5 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (22.2 days).
Average UV index in May
Downey, 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 February, November and December (UV index 4).
Average cloud cover in May
Downey, CA
- Average cloud cover in May: 17
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in May
Downey, 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).
Downey, California, USA
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