May weather forecastLafayette, OR
May
Weather in May
The last month of the spring, May, is a comfortable month in Lafayette, Oregon, with an average temperature varying between 66°F (18.9°C) and 43.3°F (6.3°C).Temperature
The start of May is characterized by a subtle increase in the average high-temperature, transitioning from a moderate 57.7°F (14.3°C) in April to a still refreshing 66°F (18.9°C). Despite high daytime temperatures, the average temperature lowers to a frosty 43.3°F (6.3°C) during May nights.Humidity
In May, the average relative humidity is 76%.Rainfall
In Lafayette, during May, the rain falls for 13.3 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Lafayette, during the entire year, the rain falls for 172.2 days and collects up to 28.9" (734mm) of precipitation.Snowfall
In Lafayette, snow does not fall in April through October.Daylight
The average length of the day in May is 14h and 54min.On the first day of May, sunrise is at 5:59 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:52 pm PDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
In Lafayette, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 4 in May leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lafayette, OR
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.1°F).
- Average low temperature in May: 43.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in May
Lafayette, OR
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Lafayette, OR
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in May
Lafayette, OR
- Average humidity in May: 76%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (67%).
Average rainfall in May
Lafayette, OR
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in May
Lafayette, OR
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in May
Lafayette, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Lafayette, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Lafayette, 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: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in May
Lafayette, OR
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in May
Lafayette, 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
Lafayette, OR
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in May
Lafayette, OR
- Average visibility in May: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
