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
John Day's weather shows a temperature rise with the arrival of May, moving from a fresh 50.4°F in April to a comfortable 61.3°F. John Day registers a substantial downturn from daytime peaks throughout May nights, with an average low-temperature of 36.1°F.Humidity
In John Day, Oregon, the average relative humidity in May is 63%.Rainfall
In May, in John Day, the rain falls for 14.8 days. Throughout May, 1.65" of precipitation is accumulated. In John Day, during the entire year, the rain falls for 127.7 days and collects up to 17.09" of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.3 snowfall days, in May, John Day aggregates 0.28" of snow. Throughout the year, in John Day, there are 62.5 snowfall days, and 39.17" of snow is accumulated.Daylight
The average length of the day in May is 14h and 49min.On the first day of the month, sunrise is at 5:46 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:14 am and sunset at 8:32 pm PDT.
Sunshine
The average sunshine in May is 10.8h.UV index
In John Day, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
FAQ
What are May temperatures in John Day?
What is the average humidity in May in John Day?
How many days does it rain in May in John Day?
What is the last month it snows in John Day?
What is the average length of the day in May in John Day?
When are sunrise and sunset in May in John Day?
How many hours of sunshine does John Day have in May?
How high is the UV index in May in John Day?
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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