Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May in Oregon City brings a soft temperature shift, with the average high-temperature nudging from a refreshing 58.5°F (14.7°C) in April to a comfortable 66.6°F (19.2°C). Oregon City registers a marked temperature plunge to a chilly 43.5°F (6.4°C) during the cool May nights.Humidity
In Oregon City, the average relative humidity in May is 74%.Rainfall
In May, in Oregon City, the rain falls for 13.7 days. Throughout May, 1.81" (46mm) of precipitation is accumulated. Throughout the year, in Oregon City, there are 169.9 rainfall days, and 32.76" (832mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Oregon City.Daylight
In Oregon City, Oregon, the average length of the day in May is 14h and 55min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:25 am and sunset at 8:50 pm PDT.
Sunshine
In Oregon City, the average sunshine in May is 9h.UV index
In Oregon City, Oregon, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 in May translates into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What are May temperatures in Oregon City?
What is the average humidity in May in Oregon City?
How many days does it rain in May in Oregon City?
When it does not snow in Oregon City?
How many hours of daylight does Oregon City have in May?
What time are sunrise and sunset in May in Oregon City?
How long on average sun shines in May in Oregon City?
What is the UV index reading in May in Oregon City?
Average temperature in May
Oregon City, OR
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in May: 43.5°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in May
Oregon City, OR
- Average pressure in May: 30.03"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
Oregon City, OR
- Average wind speed in May: 4.1mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in May
Oregon City, OR
- Average humidity in May: 74%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (64%).
Average rainfall in May
Oregon City, OR
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is December (5.16").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
Oregon City, OR
- Average rainfall days in May: 13.7 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (4 days).
Average snowfall in May
Oregon City, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Oregon City, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.3 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
Oregon City, OR
- Average daylight in May: 14h and 5min
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: 9h and 0min
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 18min).
Average sunshine days in May
Oregon City, OR
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in May
Oregon City, 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
Oregon City, OR
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
Oregon City, OR
- Average visibility in May: 5mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
Oregon City, Oregon, USA
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