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
May denotes a minimal variation in the average high-temperature to a still refreshing 63°F (17.2°C) from April's 58.5°F (14.7°C). In May, the average low-temperature records at a frosty 44.1°F (6.7°C) during the nights.Humidity
In May, the average relative humidity in Rio Dell, California, is 79%.Rainfall
In Rio Dell, in May, it is raining for 8.1 days, with typically 1.69" (43mm) of accumulated precipitation. In Rio Dell, during the entire year, the rain falls for 110.9 days and collects up to 28.27" (718mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in May in Rio Dell is 14h and 27min.On the first day of May in Rio Dell, sunrise is at 6:14 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:40 pm PDT.
Sunshine
In Rio Dell, California, the average sunshine in May is 9.9h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What are May temperatures in Rio Dell?
What is the average humidity in May in Rio Dell?
How much does it rain in Rio Dell in May?
When it does not snow in Rio Dell?
How many hours of daylight does Rio Dell have in May?
When are sunrise and sunset in May in Rio Dell?
How long on average sun shines in May in Rio Dell?
What is the UV index reading in May in Rio Dell?
Average temperature in May
Rio Dell, CA
- Average high temperature in May: 63°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in May: 44.1°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is February (39.7°F).
Average pressure in May
Rio Dell, CA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.96"Hg).
Average wind speed in May
Rio Dell, CA
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is June (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
Rio Dell, CA
- Average humidity in May: 79%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (73%).
Average rainfall in May
Rio Dell, CA
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Rio Dell, CA
- Average rainfall days in May: 8.1 days
The month with the highest number of rainy days is March (17.3 days).
The months with the least rainy days are July and August (1.8 days).
Average snowfall in May
Rio Dell, CA
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Rio Dell, CA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Rio Dell, CA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 9h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in May
Rio Dell, CA
- Average sunshine days in May: 21.1 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (11.9 days).
Average UV index in May
Rio Dell, CA
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in May
Rio Dell, CA
- Average cloud cover in May: 37
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in May
Rio Dell, CA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
Rio Dell, California, USA
Weather forecast for your location
2. Allow the app to use your location
