May weather forecastGalvin, WA
May
Weather in May
May, the last month of the spring in Galvin, is an enjoyable month, with an average temperature fluctuating between 41.2°F (5.1°C) and 64.9°F (18.3°C).Temperature
The onset of May introduces a subtle rise in the average high-temperature, nudging from a refreshing 56.7°F (13.7°C) in April to a comfortable 64.9°F (18.3°C). May nights in Galvin, Washington, experience a distinct temperature drop from the daily highs, with an average low-temperature of 41.2°F (5.1°C).Humidity
The average relative humidity in May is 78%.Rainfall
In Galvin, in May, during 13.4 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Galvin, during the entire year, the rain falls for 168 days and collects up to 23.94" (608mm) of precipitation.Snowfall
In Galvin, snow does not fall in April through October.Daylight
The average length of the day in May is 15h and 4min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:22 pm. On the last day of May, in Galvin, sunrise is at 5:21 am and sunset at 8:57 pm PDT.
Sunshine
In May, the average sunshine is 8h.UV index
The average daily maximum UV index in May in Galvin, Washington, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Exercise prevention - Warding off sunburn is urged. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Galvin, WA
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in May: 41.2°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in May
Galvin, WA
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in May
Galvin, WA
- Average wind speed in May: 4mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in May
Galvin, WA
- Average humidity in May: 78%
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall in May
Galvin, WA
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Galvin, WA
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in May
Galvin, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Galvin, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.7 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
Galvin, WA
- Average daylight in May: 15h and 6min
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: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in May
Galvin, WA
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index in May
Galvin, WA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Galvin, WA
- Average cloud cover in May: 55
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in May
Galvin, WA
- Average visibility in May: 4mi
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).
