May weather forecastO'Brien, OR
May
Weather in May
The last month of the spring, May, is a comfortable month in O'Brien, Oregon, with an average temperature varying between 60.8°F (16°C) and 45.5°F (7.5°C).Temperature
The shift into May is accompanied by a modest temperature increase, with the average high-temperature edging up from a fresh 55°F (12.8°C) in April to a refreshing 60.8°F (16°C). An average low-temperature of 45.5°F (7.5°C) is recorded in the month of May.Humidity
The average relative humidity in May is 78%.Rainfall
In May, the rain falls for 9.8 days. Throughout May, 2.56" (65mm) of precipitation is accumulated. In O'Brien, during the entire year, the rain falls for 131.8 days and collects up to 46.14" (1172mm) of precipitation.Snowfall
In O'Brien, Oregon, snow does not fall in January, March through December.Daylight
In O'Brien, Oregon, the average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:41 am and sunset at 8:43 pm PDT.
Sunshine
In May, the average sunshine is 10h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
O'Brien, OR
- Average high temperature in May: 60.8°F
The warmest month (with the highest average high temperature) is July (71.8°F).
The month with the lowest average high temperature is December (50.4°F).
- Average low temperature in May: 45.5°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure in May
O'Brien, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in May
O'Brien, OR
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
O'Brien, OR
- Average humidity in May: 78%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (72%).
Average rainfall in May
O'Brien, OR
- Average rainfall in May: 2.56"
The wettest month (with the highest rainfall) is January (8.11").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in May
O'Brien, OR
- Average rainfall days in May: 9.8 days
The month with the highest number of rainy days is March (19.2 days).
The month with the least rainy days is July (2.3 days).
Average snowfall in May
O'Brien, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
O'Brien, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
O'Brien, OR
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in May
O'Brien, OR
- Average sunshine days in May: 19.8 days
The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is March (10.5 days).
Average UV index in May
O'Brien, OR
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in May
O'Brien, OR
- Average cloud cover in May: 32
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in May
O'Brien, 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).
