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 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
Winnetka observes an average high-temperature of a moderately hot 73.8°F (23.2°C) in May, barely different from 70.3°F (21.3°C) in April. Winnetka cools down to an average low-temperature of 54.5°F (12.5°C) throughout the month of May.Humidity
The average relative humidity in May is 58%.Rainfall
In Winnetka, during May, the rain falls for 3.4 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Winnetka, during the entire year, the rain falls for 42.7 days and collects up to 6.46" (164mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
In Winnetka, California, the average length of the day in May is 13h and 58min.On the first day of the month, sunrise is at 6:03 am and sunset at 7:38 pm. On the last day of May, in Winnetka, sunrise is at 5:43 am and sunset at 8:00 pm PDT.
Sunshine
The average sunshine in May in Winnetka is 11.5h.UV index
In Winnetka, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 5 in May translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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 much does it rain in May?
When it does not snow?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Winnetka, CA
- Average high temperature in May: 73.8°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in May: 54.5°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 (46.9°F).
Average pressure in May
Winnetka, CA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Winnetka, CA
- Average wind speed in May: 5.5mph
The windiest months (with the highest average wind speed) are January and December (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in May
Winnetka, CA
- Average humidity in May: 58%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall in May
Winnetka, CA
- Average rainfall in May: 0.24"
The wettest month (with the highest rainfall) is February (1.22").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in May
Winnetka, 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 (1.4 days).
Average snowfall days in May
Winnetka, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Winnetka, 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
Winnetka, CA
- Average sunshine days in May: 25.3 days
The months with the most sunshine days are August and October (27.3 days).
The month with the least sunshine days is February (22 days).
Average UV index in May
Winnetka, 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
Winnetka, CA
- Average cloud cover in May: 14
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in May
Winnetka, 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).
Winnetka, California, USA
Weather forecast for your location
2. Allow the app to use your location