May weather forecastBrewster, WA
May
Weather in May
May, the last month of the spring in Brewster, is a comfortable month, with temperature in the range of an average low of 43.5°F (6.4°C) and an average high of 66.4°F (19.1°C).Temperature
As May sets, the average high-temperature shows an increase, moving up from a fresh 54.9°F (12.7°C) in April to a comfortable 66.4°F (19.1°C). In Brewster, the nighttime temperature registers a significant drop from daytime peaks to an average of 43.5°F (6.4°C) in May.Humidity
The average relative humidity in May is 55%.Rainfall
In May, the rain falls for 8.7 days. Throughout May, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 101.3 rainfall days, and 9.45" (240mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in May is 15h and 13min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:03 am and sunset at 8:50 pm PDT.
Sunshine
In Brewster, the average sunshine in May is 11.1h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 5 in May transforms into this advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Brewster, WA
- Average high temperature in May: 66.4°F
The warmest months (with the highest average high temperature) are July and August (83.1°F).
The months with the lowest average high temperature are January and December (30.7°F).
- Average low temperature in May: 43.5°F
The month with the highest average low temperature is August (57°F).
The coldest month (with the lowest average low temperature) is December (18.9°F).
Average pressure in May
Brewster, WA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in May
Brewster, WA
- Average wind speed in May: 5.2mph
The windiest months (with the highest average wind speed) are April, June and July (5.3mph).
The calmest month (with the lowest average wind speed) is January (3.5mph).
Average humidity in May
Brewster, WA
- Average humidity in May: 55%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (40%).
Average rainfall in May
Brewster, WA
- Average rainfall in May: 1.06"
The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in May
Brewster, WA
- Average rainfall days in May: 8.7 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in May
Brewster, WA
- Average snowfall in May: 0"
The month with the highest snowfall is December (4.72").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Brewster, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (9.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Brewster, WA
- Average daylight in May: 15h and 12min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 11h and 6min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
Brewster, WA
- Average sunshine days in May: 20.3 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (13.7 days).
Average UV index in May
Brewster, WA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Brewster, WA
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Brewster, WA
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).





