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
As April transitions into May, John Day sees a rise in the average high-temperature, moving from a fresh 50.4°F (10.2°C) to a refreshing 61.3°F (16.3°C). John Day in May observes a sharp transition from the daytime heat, falling to an average low of 36.1°F (2.3°C).Humidity
In John Day, the average relative humidity in May is 63%.Rainfall
In John Day, during May, the rain falls for 14.8 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 127.7 rainfall days, and 17.09" (434mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in John Day. May is the last month it regularly snows. During 1.3 snowfall days, in May, John Day aggregates 0.28" (7mm) of snow. Throughout the year, in John Day, there are 62.5 snowfall days, and 39.17" (995mm) of snow is accumulated.Daylight
In John Day, the average length of the day in May is 14h and 49min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:32 pm PDT.
Sunshine
In May, the average sunshine is 10.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Be vigilant - Preventing sunburn is recommended. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows in John Day?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
John Day, OR
- Average high temperature in May: 61.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (33.4°F).
- Average low temperature in May: 36.1°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).
Average pressure in May
John Day, OR
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in May
John Day, OR
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity in May
John Day, OR
- Average humidity in May: 63%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (42%).
Average rainfall in May
John Day, OR
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in May
John Day, OR
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in May
John Day, OR
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (10.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
John Day, OR
- Average snowfall days in May: 1.3 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
John Day, OR
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in May
John Day, OR
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is February (9 days).
Average UV index in May
John Day, 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, March, October, November and December (UV index 2).
Average cloud cover in May
John Day, OR
- Average cloud cover in May: 31
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in May
John Day, OR
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
John Day, Oregon, USA
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