May weather forecastUmpqua, OR
May
Weather in May
The last month of the spring, May, is an enjoyable month in Umpqua, Oregon, with an average temperature ranging between min 38.8°F (3.8°C) and max 64.6°F (18.1°C).Temperature
The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from a mild 56.8°F (13.8°C) to a still refreshing 64.6°F (18.1°C). Throughout May nights, a significant departure from daytime temperatures, with an average low of 38.8°F (3.8°C), is recognized.Humidity
In May, the average relative humidity is 79%.Rainfall
In May, the rain falls for 14.2 days. Throughout May, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 153.9 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 43min.On the first day of May, sunrise is at 6:05 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:47 pm PDT.
Sunshine
The average sunshine in May is 8.3h.UV index
In Umpqua, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 4 in May transforms into this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Umpqua, OR
- Average high temperature in May: 64.6°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in May: 38.8°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in May
Umpqua, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in May
Umpqua, OR
- Average wind speed in May: 3.7mph
The windiest months (with the highest average wind speed) are January and March (4mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).
Average humidity in May
Umpqua, OR
- Average humidity in May: 79%
The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in May
Umpqua, OR
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Umpqua, OR
- Average rainfall days in May: 14.2 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in May
Umpqua, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Umpqua, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2 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
Umpqua, OR
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in May
Umpqua, OR
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in May
Umpqua, 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
Umpqua, OR
- Average cloud cover in May: 51
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Umpqua, 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).
