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
May's arrival brings an average high-temperature of a moderately hot 75.4°F (24.1°C), slightly deviating from April's 72°F (22.2°C). Despite high daytime temperatures, the average temperature lowers to a cool 53.8°F (12.1°C) during May nights.Humidity
March, May and June, with an average relative humidity of 56%, are the most humid months.Rainfall
In Sierra Madre, California, in May, during 3.4 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. In Sierra Madre, during the entire year, the rain falls for 48.7 days and collects up to 7.48" (190mm) of precipitation.Daylight
The average length of the day in May is 13h and 58min.On the first day of May, sunrise is at 6:01 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:58 pm PDT.
Sunshine
In Sierra Madre, the average sunshine in May is 11.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In May, a regular UV index of 5 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the most humid month?
What is the average humidity in May?
How many days does it rain in May?
How many hours of daylight does Sierra Madre have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Sierra Madre have in May?
What is the UV index reading in May?
Average temperature in May
Sierra Madre, CA
- Average high temperature in May: 75.4°F
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (62.1°F).
- Average low temperature in May: 53.8°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).
Average pressure in May
Sierra Madre, CA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Sierra Madre, CA
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in May
Sierra Madre, CA
- Average humidity in May: 56%
The months with the highest relative humidity are March, May and June (56%).
The month with the lowest relative humidity is November (46%).
Average rainfall in May
Sierra Madre, CA
- Average rainfall in May: 0.2"
The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Sierra Madre, CA
- Average rainfall days in May: 3.4 days
The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.3 days).
Average daylight in May /
Average sunshine in May
Sierra Madre, 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 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in May
Sierra Madre, CA
- Average sunshine days in May: 25.7 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (22 days).
Average UV index in May
Sierra Madre, CA
- Average UV index in May: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Sierra Madre, CA
- Average cloud cover in May: 12
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 5).
Average visibility in May
Sierra Madre, 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).
Sierra Madre, California, USA
Weather forecast for your location
2. Allow the app to use your location