May weather forecastShaniko, OR
May
Weather in May
The last month of the spring, May, is a refreshing month in Shaniko, Oregon, with temperature in the range of an average high of 64.4°F (18°C) and an average low of 42.3°F (5.7°C).Temperature
The onset of May brings a rise in the average high-temperature, elevating from a fresh 54.9°F (12.7°C) in April to an enjoyable 64.4°F (18°C). Shaniko sees a large disparity in day to night temperatures in May, with the night temperature dropping to an average of 42.3°F (5.7°C).Humidity
In May, the average relative humidity is 59%.Rainfall
In Shaniko, during May, the rain falls for 10.6 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 121.1 rainfall days, and 11.38" (289mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September, November and December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Shaniko aggregates 0.04" (1mm) of snow. Throughout the year, there are 35.3 snowfall days, and 17.6" (447mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 53min.On the first day of the month, sunrise is at 5:50 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:19 am and sunset at 8:42 pm PDT.
Sunshine
In May, the average sunshine is 11.1h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during May translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Shaniko, OR
- Average high temperature in May: 64.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in May: 42.3°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure in May
Shaniko, OR
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in May
Shaniko, OR
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Shaniko, OR
- Average humidity in May: 59%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are July and August (48%).
Average rainfall in May
Shaniko, OR
- Average rainfall in May: 0.91"
The wettest month (with the highest rainfall) is December (1.69").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Shaniko, OR
- Average rainfall days in May: 10.6 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is July (3 days).
Average snowfall in May
Shaniko, OR
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and October (0").
Average snowfall days in May
Shaniko, OR
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (9.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Shaniko, OR
- Average daylight in May: 14h and 54min
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: 11h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in May
Shaniko, OR
- Average sunshine days in May: 17.8 days
The month with the most sunshine days is July (26 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in May
Shaniko, OR
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Shaniko, OR
- Average cloud cover in May: 28
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Shaniko, OR
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).





