May weather forecastMcKinleyville, CA
May
Weather in May
The last month of the spring, May, is also a moderate month in McKinleyville, California, with temperature in the range of an average high of 60.1°F (15.6°C) and an average low of 45.9°F (7.7°C).Temperature
McKinleyville indicates an average high-temperature of a still mild 60.1°F (15.6°C) in May, showing minor variation from April's 56.1°F (13.4°C). In the month of May, the average low-temperature usually rests at a chilly 45.9°F (7.7°C).Humidity
The average relative humidity in May in McKinleyville is 81%.Rainfall
In McKinleyville, California, in May, during 8.3 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 114.9 rainfall days, and 31.61" (803mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
In McKinleyville, the average length of the day in May is 14h and 29min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:46 am and sunset at 8:41 pm PDT.
Sunshine
In McKinleyville, California, the average sunshine in May is 9.6h.UV index
The average daily maximum UV index in May in McKinleyville, California, is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 4 in May translates into this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
McKinleyville, CA
- Average high temperature in May: 60.1°F
The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in May: 45.9°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).
Average pressure in May
McKinleyville, CA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in May
McKinleyville, CA
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
McKinleyville, CA
- Average humidity in May: 81%
The month with the highest relative humidity is March (82%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall in May
McKinleyville, CA
- Average rainfall in May: 1.73"
The wettest month (with the highest rainfall) is December (5.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
McKinleyville, CA
- Average rainfall days in May: 8.3 days
The month with the highest number of rainy days is March (16.8 days).
The months with the least rainy days are July and August (2.2 days).
Average snowfall in May
McKinleyville, CA
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.39").
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
McKinleyville, 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
McKinleyville, CA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in May
McKinleyville, CA
- Average sunshine days in May: 21.2 days
The months with the most sunshine days are July and August (28 days).
The month with the least sunshine days is March (12.5 days).
Average UV index in May
McKinleyville, 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
McKinleyville, CA
- Average cloud cover in May: 37
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in May
McKinleyville, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





