January weather forecastCoupeville, WA
January
Weather in January
January, the same as December, in Coupeville, Washington, is another chilly winter month, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 45°F (7.2°C).Temperature
The arrival of January denotes a barely perceptible change in the average high-temperatures to a still chilly 45°F (7.2°C) from December's 43.7°F (6.5°C). Coupeville, in the month of January, notes an average low temperature of 38.8°F (3.8°C), indicating a small decrease from the daytime highs.Humidity
The months with the highest humidity are January through March, with an average relative humidity of 81%.Rainfall
In Coupeville, in January, during 18.5 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Coupeville, during the entire year, the rain falls for 183.8 days and collects up to 24.45" (621mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Coupeville, in January, during 2.1 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Coupeville, during the entire year, snow falls for 9.6 days and aggregates up to 5.63" (143mm) of snow.Ocean temperature
January, February and April, with an average ocean temperature of 45.1°F (7.3°C), are months with the coldest seawater.Note: Dipping into 45.1°F (7.3°C) below 50°F (10°C) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 55.4°F (13°C) feels cold to the bone.
Daylight
In Coupeville, the average length of the day in January is 8h and 53min.On the first day of the month, sunrise is at 8:01 am and sunset at 4:27 pm. On the last day of January, sunrise is at 7:40 am and sunset at 5:08 pm PST.
Sunshine
In January, the average sunshine is 4.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Coupeville, WA
- Average high temperature in January: 45°F
The warmest month (with the highest average high temperature) is July (66.2°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in January: 38.8°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (37.9°F).
Average pressure in January
Coupeville, WA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in January
Coupeville, WA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is November (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in January
Coupeville, WA
- Average humidity in January: 81%
The months with the highest relative humidity are January, February and March (81%).
The month with the lowest relative humidity is July (76%).
Average rainfall in January
Coupeville, WA
- Average rainfall in January: 2.72"
The wettest month (with the highest rainfall) is November (3.46").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in January
Coupeville, WA
- Average rainfall days in January: 18.5 days
The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is August (7.5 days).
Average snowfall in January
Coupeville, WA
- Average snowfall in January: 1.02"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Coupeville, WA
- Average snowfall days in January: 2.1 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Coupeville, WA
- Average sea temperature in January: 45.1°F
The best month for swimming (with the highest average sea temperature) is August (53°F).
The coldest month (with the lowest average sea temperature) is February (45°F).
Average daylight in January /
Average sunshine in January
Coupeville, WA
- Average daylight in January: 8h and 54min
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 January: 4h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in January
Coupeville, WA
- Average sunshine days in January: 10.3 days
The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in January
Coupeville, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Coupeville, WA
- Average cloud cover in January: 51
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in January
Coupeville, WA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
