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
Deer Island's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's mild 56.3°F (13.5°C) to a comfortable 65.1°F (18.4°C). Despite a significant disparity with daytime temperatures, an average low-temperature of 42.1°F (5.6°C) is recorded in Deer Island during May.Humidity
In May, the average relative humidity is 77%.Rainfall
In Deer Island, during May, the rain falls for 14.6 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 180.2 rainfall days, and 36.77" (934mm) of precipitation is accumulated.Snowfall
In Deer Island, snow does not fall in April through October.Daylight
The average length of the day in May is 14h and 58min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:24 am and sunset at 8:54 pm PDT.
Sunshine
In Deer Island, the average sunshine in May is 8.3h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What are May temperatures in Deer Island?
What is the average humidity in May in Deer Island?
How much does it rain in Deer Island in May?
When it does not snow in Deer Island?
How many hours of daylight does Deer Island have in May?
When are sunrise and sunset in May in Deer Island?
How long on average sun shines in May in Deer Island?
What is the UV index reading in May in Deer Island?
Average temperature in May
Deer Island, OR
- Average high temperature in May: 65.1°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in May: 42.1°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in May
Deer Island, 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
Deer Island, OR
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in May
Deer Island, OR
- Average humidity in May: 77%
The months with the highest relative humidity are February and November (87%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in May
Deer Island, OR
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is January (5.43").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Deer Island, OR
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is July (5.2 days).
Average snowfall in May
Deer Island, OR
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Deer Island, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.9 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
Deer Island, OR
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in May
Deer Island, OR
- Average sunshine days in May: 15.2 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in May
Deer Island, 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
Deer Island, OR
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Deer Island, OR
- Average visibility in May: 5mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Deer Island, Oregon, USA
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