May weather forecastMapleton, OR
May
Weather in May
The last month of the spring, May, is a moderate month in Mapleton, Oregon, with an average temperature fluctuating between 59°F (15°C) and 46°F (7.8°C).Temperature
The transition from April to May sees average high-temperatures adjusting to a moderate 59°F (15°C), from a not significantly different 54.1°F (12.3°C). In the month of May, the average low-temperature usually rests at a chilly 46°F (7.8°C).Humidity
April through July, September and October, with an average relative humidity of 81%, are the least humid months.Rainfall
In Mapleton, in May, during 10.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 131.8 rainfall days, and 20.63" (524mm) of precipitation is accumulated.Snowfall
March through October and December are months without snowfall.Daylight
In May, the average length of the day is 14h and 47min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:51 pm PDT.
Sunshine
The average sunshine in May is 8.4h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 4 in May transforms into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mapleton, OR
- Average high temperature in May: 59°F
The warmest month (with the highest average high temperature) is August (68.2°F).
The month with the lowest average high temperature is December (48°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is February (40.6°F).
Average pressure in May
Mapleton, OR
- Average pressure in May: 30.06"Hg
The months with the highest atmospheric pressure are January and April (30.09"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).
Average wind speed in May
Mapleton, OR
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is December (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Mapleton, OR
- Average humidity in May: 81%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April, May, June, July, September and October (81%).
Average rainfall in May
Mapleton, OR
- Average rainfall in May: 1.1"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Mapleton, OR
- Average rainfall days in May: 10.2 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is July (2.9 days).
Average snowfall in May
Mapleton, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in May
Mapleton, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).
Average daylight in May /
Average sunshine in May
Mapleton, OR
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in May
Mapleton, OR
- Average sunshine days in May: 19 days
The month with the most sunshine days is July (26.9 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in May
Mapleton, OR
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in May
Mapleton, OR
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Mapleton, OR
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
