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
The arrival of May is marked by an average high-temperature of a pleasant 70.2°F (21.2°C), bearing a close resemblance to April. May brings an average low-temperature of 53.4°F (11.9°C) to Simi Valley.Humidity
The average relative humidity in May is 61%.Rainfall
In Simi Valley, California, in May, during 4.5 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, there are 53.7 rainfall days, and 9.61" (244mm) of precipitation is accumulated.Daylight
In May, the average length of the day in Simi Valley is 13h and 58min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:39 pm. On the last day of May, in Simi Valley, sunrise is at 5:44 am and sunset at 8:01 pm PDT.
Sunshine
The average sunshine in May in Simi Valley is 11.5h.UV index
In May, the average daily maximum UV index in Simi Valley is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. It's recommended to limit sun exposure when its radiation is at its peak during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What is the usual temperature for Simi Valley in May?
What is the average humidity in May in Simi Valley?
How much does it rain in Simi Valley in May?
How many hours of daylight does Simi Valley have in May?
When are sunrise and sunset in May in Simi Valley?
How long on average sun shines in May in Simi Valley?
What is the UV index intensity in May in Simi Valley?
Average temperature in May
Simi Valley, CA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is August (82.2°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in May: 53.4°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 (46.4°F).
Average pressure in May
Simi Valley, CA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in May
Simi Valley, CA
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is December (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
Simi Valley, CA
- Average humidity in May: 61%
The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (50%).
Average rainfall in May
Simi Valley, CA
- Average rainfall in May: 0.35"
The wettest month (with the highest rainfall) is February (1.93").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in May
Simi Valley, CA
- Average rainfall days in May: 4.5 days
The month with the highest number of rainy days is March (8 days).
The months with the least rainy days are June and August (1.5 days).
Average daylight in May /
Average sunshine in May
Simi Valley, 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 3min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in May
Simi Valley, CA
- Average sunshine days in May: 23.2 days
The month with the most sunshine days is August (25.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index in May
Simi Valley, CA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Simi Valley, CA
- Average cloud cover in May: 14
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
Simi Valley, 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).
Simi Valley, California, USA
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