May weather forecastHamilton, WA
May
Weather in May
The last month of the spring, May, is a mild month in Hamilton, Washington, with an average temperature varying between 42.8°F (6°C) and 60.6°F (15.9°C).Temperature
The coming of May brings a minor shift in Hamilton's weather, with average high-temperatures adjusting from April's cool 52°F (11.1°C) to a mild 60.6°F (15.9°C). Hamilton, in May, observes a steady average low-temperature of 42.8°F (6°C).Humidity
In May, the average relative humidity is 79%.Rainfall
In May, in Hamilton, the rain falls for 16.1 days. Throughout May, 2.91" (74mm) of precipitation is accumulated. In Hamilton, Washington, during the entire year, the rain falls for 203.2 days and collects up to 49.72" (1263mm) of precipitation.Snowfall
In Hamilton, snow does not fall in May through October.Daylight
In Hamilton, the average length of the day in May is 15h and 16min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:23 pm. On the last day of May, sunrise is at 5:10 am and sunset at 9:01 pm PDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In Hamilton, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the UV index of 3 transforms into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hamilton, WA
- Average high temperature in May: 60.6°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (40.5°F).
- Average low temperature in May: 42.8°F
The month with the highest average low temperature is August (50.5°F).
The coldest months (with the lowest average low temperature) are February and December (32.5°F).
Average pressure in May
Hamilton, WA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in May
Hamilton, WA
- Average wind speed in May: 3.9mph
The windiest month (with the highest average wind speed) is November (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in May
Hamilton, WA
- Average humidity in May: 79%
The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is July (75%).
Average rainfall in May
Hamilton, WA
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is November (7.09").
The driest month (with the least rainfall) is July (0.98").
Average rainfall days in May
Hamilton, WA
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is March (22.1 days).
The month with the least rainy days is August (9.4 days).
Average snowfall in May
Hamilton, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Hamilton, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.3 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
Hamilton, WA
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in May
Hamilton, WA
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index in May
Hamilton, WA
- Average UV index in May: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Hamilton, WA
- Average cloud cover in May: 46
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Hamilton, WA
- Average visibility in May: 5mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
