May weather forecastArcata, CA
May
Weather in May
May, the last month of the spring in Arcata, is also a moderate month, with an average temperature ranging between max 60.4°F (15.8°C) and min 45.9°F (7.7°C).Temperature
Arcata's average high-temperature in May sits at a still refreshing 60.4°F (15.8°C), showing little difference from the previous month. The temperature lowers to an average of 45.9°F (7.7°C) during May nights.Humidity
In Arcata, California, the average relative humidity in May is 80%.Rainfall
In Arcata, in May, it is raining for 7.8 days, with typically 1.77" (45mm) of accumulated precipitation. In Arcata, during the entire year, the rain falls for 114.7 days and collects up to 29.37" (746mm) of precipitation.Snowfall
January, March through December are months without snowfall in Arcata, California.Daylight
In May, the average length of the day is 14h and 29min.On the first day of May, sunrise is at 6:13 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:41 pm PDT.
Sunshine
In Arcata, the average sunshine in May is 9.9h.UV index
In Arcata, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Arcata, CA
- Average high temperature in May: 60.4°F
The warmest month (with the highest average high temperature) is August (69.6°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 (52.3°F).
The coldest month (with the lowest average low temperature) is February (41.9°F).
Average pressure in May
Arcata, 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 (29.96"Hg).
Average wind speed in May
Arcata, CA
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Arcata, CA
- Average humidity in May: 80%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Arcata, CA
- Average rainfall in May: 1.77"
The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in May
Arcata, CA
- Average rainfall days in May: 7.8 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (2.1 days).
Average snowfall in May
Arcata, 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
Arcata, 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
Arcata, 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 54min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in May
Arcata, CA
- Average sunshine days in May: 21.8 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (12.1 days).
Average UV index in May
Arcata, CA
- Average UV index in May: 4
The month with the highest UV index is July (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
Arcata, CA
- Average cloud cover in May: 35
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in May
Arcata, CA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
