May weather forecastAlvadore, OR
May
Weather in May
May, the last month of the spring in Alvadore, is a refreshing month, with an average temperature ranging between max 65.7°F (18.7°C) and min 40.6°F (4.8°C).Temperature
Alvadore's transition into May is marked by a minor temperature shift, moving from a moderate 57.7°F (14.3°C) in April to a still refreshing 65.7°F (18.7°C). From the heights of the May heat, Alvadore records a mean nighttime low of 40.6°F (4.8°C).Humidity
The average relative humidity in May is 78%.Rainfall
In Alvadore, Oregon, in May, it is raining for 10.8 days, with typically 0.83" (21mm) of accumulated precipitation. In Alvadore, during the entire year, the rain falls for 121.1 days and collects up to 11.73" (298mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 47min.On the first day of May in Alvadore, sunrise is at 6:02 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:49 pm PDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 4 in May translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Alvadore, OR
- Average high temperature in May: 65.7°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (45.7°F).
- Average low temperature in May: 40.6°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in May
Alvadore, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Alvadore, OR
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is March (4.6mph).
The calmest months (with the lowest average wind speed) are August and September (3.7mph).
Average humidity in May
Alvadore, OR
- Average humidity in May: 78%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall in May
Alvadore, OR
- Average rainfall in May: 0.83"
The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in May
Alvadore, OR
- Average rainfall days in May: 10.8 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in May
Alvadore, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Alvadore, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Alvadore, OR
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in May
Alvadore, OR
- Average sunshine days in May: 18.3 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in May
Alvadore, OR
- 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, November and December (UV index 2).
Average cloud cover in May
Alvadore, OR
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Alvadore, OR
- Average visibility in May: 4mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).





