May weather forecastColton, WA
May
Weather in May
The last month of the spring, May, is a refreshing month in Colton, Washington, with temperature in the range of an average high of 65.7°F (18.7°C) and an average low of 42.1°F (5.6°C).Temperature
A subtle rise in the average high-temperature is observed during May, adjusting from a moderate 56.8°F (13.8°C) in April to a still refreshing 65.7°F (18.7°C). Colton sees a major change from daytime highs, with the nighttime temperature dipping to a wintry 42.1°F (5.6°C) on average during May.Humidity
In Colton, the average relative humidity in May is 68%.Rainfall
In Colton, during May, the rain falls for 11.6 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Colton, during the entire year, the rain falls for 116.2 days and collects up to 8.23" (209mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
In Colton, the average length of the day in May is 15h and 2min.On the first day of the month, sunrise is at 5:32 am and sunset at 7:58 pm. On the last day of May, sunrise is at 4:59 am and sunset at 8:33 pm PDT.
Sunshine
In May, the average sunshine is 10.8h.UV index
In Colton, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 in May translates into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Colton, WA
- Average high temperature in May: 65.7°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in May: 42.1°F
The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in May
Colton, WA
- 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
Colton, WA
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in May
Colton, WA
- Average humidity in May: 68%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (38%).
Average rainfall in May
Colton, WA
- Average rainfall in May: 0.94"
The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in May
Colton, WA
- Average rainfall days in May: 11.6 days
The months with the highest number of rainy days are March and April (13.8 days).
The month with the least rainy days is August (4.5 days).
Average snowfall in May
Colton, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in May
Colton, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Colton, WA
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 10h and 48min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in May
Colton, WA
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in May
Colton, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Colton, WA
- Average cloud cover in May: 30
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Colton, WA
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
