Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The commencement of January in Sammamish notes an average high-temperature of a chilly 44.1°F (6.7°C), exhibiting little difference from the previous month. During the month of January, Sammamish's nighttime temperature lowers to an average of 34.3°F (1.3°C).Humidity
January, February and December, with an average relative humidity of 85%, are the most humid months.Rainfall
In Sammamish, during January, the rain falls for 12.8 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Sammamish, during the entire year, the rain falls for 136.7 days and collects up to 13.39" (340mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Sammamish. In Sammamish, in January, snow falls for 1.8 days, with typically accumulated 0.67" (17mm) of snow. Throughout the year, there are 9.3 snowfall days, and 3.27" (83mm) of snow is accumulated.Daylight
The average length of the day in January in Sammamish is 8h and 58min.On the first day of January in Sammamish, Washington, sunrise is at 7:56 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:07 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index in Sammamish are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
Is January cold in Sammamish?
What is the most humid month in Sammamish?
What is the average humidity in January in Sammamish?
How much does it rain in Sammamish in January?
How many days does it snow in January in Sammamish?
What is the average length of the day in January in Sammamish?
When is the sunrise / sunset in January in Sammamish?
What are the months with the least sunshine in Sammamish?
How long on average sun shines in January in Sammamish?
What is the month with the lowest UV index in Sammamish?
How high is the UV index in January in Sammamish?
Average temperature in January
Sammamish, WA
- Average high temperature in January: 44.1°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in January: 34.3°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in January
Sammamish, WA
- Average pressure in January: 30.1"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 January
Sammamish, WA
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in January
Sammamish, WA
- Average humidity in January: 85%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (70%).
Average rainfall in January
Sammamish, WA
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is December (1.85").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in January
Sammamish, WA
- Average rainfall days in January: 12.8 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in January
Sammamish, WA
- Average snowfall in January: 0.67"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Sammamish, WA
- Average snowfall days in January: 1.8 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Sammamish, WA
- Average daylight in January: 9h and 0min
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 January: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in January
Sammamish, WA
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is August (24 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in January
Sammamish, WA
- Average UV index in January: 2
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 January
Sammamish, WA
- Average cloud cover in January: 56
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in January
Sammamish, WA
- Average visibility in January: 5mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (5mi).
Sammamish, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
