Contents
- Weather in November
- Frequently asked questions
- Average temperature in November
- Average pressure in November
- Average wind speed in November
- Average humidity in November
- Average rainfall in November
- Average rainfall days in November
- Average snowfall in November
- Average snowfall days in November
- Average daylight in November
- Average sunshine in November
- Average sunshine days in November
- Average UV index in November
- Average cloud cover in November
- Average visibility in November
Weather in November
Temperature
The shift from October to November involves a decrease in the average high-temperature, dropping from a mild 58.6°F (14.8°C) to a frosty 48.6°F (9.2°C). An average temperature of 39°F (3.9°C) is recorded during the nights in November.Humidity
In Mercer Island, the average relative humidity in November is 84%.Rainfall
In November, in Mercer Island, the rain falls for 10.9 days. Throughout November, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 119.1 rainfall days, and 11.97" (304mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. November is the first month it typically snows. Throughout November, in the average 0.5 snowfall days, it receives 0.2" (5mm) of snow. In Mercer Island, during the entire year, snow falls for 7 days and aggregates up to 3.27" (83mm) of snow.Daylight
In Mercer Island, the average length of the day in November is 9h and 19min.On the first day of the month, sunrise is at 7:54 am and sunset at 5:50 pm PDT. On the last day of November, in Mercer Island, sunrise is at 7:35 am and sunset at 4:19 pm PST.
Note: On Sunday, November 3. 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from PDT to PST. Daylight Saving Time starts again on Sunday, March 9. 2025, at 2:00 am; consequently, the time zone reverts from PST to PDT.
Sunshine
In Mercer Island, the average sunshine in November is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 in November translates into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average November temperature in Mercer Island?
What is the average humidity in November in Mercer Island?
How much does it rain in Mercer Island in November?
When does it start to snow in Mercer Island?
What is the average length of the day in November in Mercer Island?
What time are sunrise and sunset in November in Mercer Island?
When does Daylight Saving Time (DST) end in November in Mercer Island?
How long on average sun shines in November in Mercer Island?
What are the months with the lowest UV index in Mercer Island?
What is the UV index reading in November in Mercer Island?
Average temperature in November
Mercer Island, WA
- Average high temperature in November: 48.6°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in November: 39°F
The month with the highest average low temperature is August (53.4°F).
The coldest month (with the lowest average low temperature) is February (34.5°F).
Average pressure in November
Mercer Island, WA
- Average pressure in November: 30.04"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in November
Mercer Island, WA
- Average wind speed in November: 4.9mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in November
Mercer Island, WA
- Average humidity in November: 84%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in November
Mercer Island, WA
- Average rainfall in November: 1.3"
The wettest month (with the highest rainfall) is December (2.01").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in November
Mercer Island, WA
- Average rainfall days in November: 10.9 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in November
Mercer Island, WA
- Average snowfall in November: 0.2"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in November
Mercer Island, WA
- Average snowfall days in November: 0.5 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in November /
Average sunshine in November
Mercer Island, WA
- Average daylight in November: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in November: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in November
Mercer Island, WA
- Average sunshine days in November: 16.6 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is February (13.8 days).
Average UV index in November
Mercer Island, WA
- Average UV index in November: 2
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 November
Mercer Island, WA
- Average cloud cover in November: 53
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in November
Mercer Island, WA
- Average visibility in November: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
Mercer Island, Washington, USA
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