May weather forecastCedar Mill, OR
May
Weather in May
The last month of the spring, May, is a refreshing month in Cedar Mill, Oregon, with an average temperature fluctuating between 44.6°F (7°C) and 67.6°F (19.8°C).Temperature
As Cedar Mill transitions into May, a rise in the average high-temperature is observed, moving from a mild 58.6°F (14.8°C) in April to a still refreshing 67.6°F (19.8°C). In Cedar Mill, the nighttime temperature registers a significant drop from daytime peaks to an average of 44.6°F (7°C) in May.Humidity
In May, the average relative humidity in Cedar Mill is 72%.Rainfall
In Cedar Mill, in May, during 13.8 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Cedar Mill, during the entire year, the rain falls for 173.2 days and collects up to 30.55" (776mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in May is 14h and 56min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:18 pm. On the last day of May, in Cedar Mill, sunrise is at 5:25 am and sunset at 8:52 pm PDT.
Sunshine
The average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 4 in May transforms into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cedar Mill, OR
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in May: 44.6°F
The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in May
Cedar Mill, OR
- Average pressure in May: 30.03"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
Cedar Mill, OR
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in May
Cedar Mill, OR
- Average humidity in May: 72%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in May
Cedar Mill, OR
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in May
Cedar Mill, OR
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in May
Cedar Mill, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Cedar Mill, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Cedar Mill, OR
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in May
Cedar Mill, OR
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).
Average UV index in May
Cedar Mill, OR
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Cedar Mill, OR
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in May
Cedar Mill, OR
- Average visibility in May: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
