May weather forecastPilot Rock, OR
May
Weather in May
May, the last month of the spring in Pilot Rock, is a comfortable month, with an average temperature fluctuating between 44.2°F (6.8°C) and 64°F (17.8°C).Temperature
The onset of May marks an increase in the average high-temperature, moving from a fresh 54.9°F (12.7°C) in April to a refreshing 64°F (17.8°C). During the nights in May, Pilot Rock experiences a consistent average temperature of 44.2°F (6.8°C).Humidity
The average relative humidity in May is 62%.Rainfall
In May, the rain falls for 14.3 days. Throughout May, 1.61" (41mm) of precipitation is accumulated. In Pilot Rock, during the entire year, the rain falls for 145.3 days and collects up to 16.69" (424mm) of precipitation.Snowfall
Months with snowfall in Pilot Rock are January through May, September through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Pilot Rock aggregates 0.04" (1mm) of snow. Throughout the year, there are 30.7 snowfall days, and 15.51" (394mm) of snow is accumulated.Daylight
In Pilot Rock, the average length of the day in May is 14h and 56min.On the first day of the month, sunrise is at 5:41 am and sunset at 8:02 pm. On the last day of May, sunrise is at 5:10 am and sunset at 8:36 pm PDT.
Sunshine
In Pilot Rock, the average sunshine in May is 10.6h.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 exposure to the Sun's UV rays for the ordinary person.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun is at its strongest around midday, find shade and limit exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Pilot Rock, OR
- Average high temperature in May: 64°F
The warmest months (with the highest average high temperature) are July and August (81.5°F).
The month with the lowest average high temperature is December (36.7°F).
- Average low temperature in May: 44.2°F
The month with the highest average low temperature is August (59.5°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).
Average pressure in May
Pilot Rock, OR
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Pilot Rock, OR
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in May
Pilot Rock, OR
- Average humidity in May: 62%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Pilot Rock, OR
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Pilot Rock, OR
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in May
Pilot Rock, OR
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Pilot Rock, OR
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (8.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Pilot Rock, 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: 10h and 36min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in May
Pilot Rock, OR
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in May
Pilot Rock, 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
Pilot Rock, OR
- Average cloud cover in May: 30
The months with the most cloud cover are January and February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in May
Pilot Rock, OR
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





