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 arrival of January brings an average high-temperature of a chilly 44.4°F (6.9°C), nearly identical to December's 42.6°F (5.9°C). Federal Way's nights in January experience an average temperature drop to an icy 35.1°F (1.7°C).Humidity
January and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In Federal Way, during January, the rain falls for 17.8 days and regularly aggregates up to 4.53" (115mm) of precipitation. In Federal Way, during the entire year, the rain falls for 177.2 days and collects up to 30.79" (782mm) of precipitation.Snowfall
Months with snowfall in Federal Way, Washington, are January through April, November and December. In Federal Way, Washington, during January, snow falls for 2.5 days and regularly aggregates up to 1.61" (41mm) of snow. Throughout the year, in Federal Way, Washington, there are 13.3 snowfall days, and 7.01" (178mm) of snow is accumulated.Daylight
In Federal Way, the average length of the day in January is 8h and 59min.On the first day of the month, sunrise is at 7:56 am and sunset at 4:29 pm. On the last day of January, in Federal Way, sunrise is at 7:36 am and sunset at 5:09 pm PST.
Sunshine
The average sunshine in January is 4.3h.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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
Is it cold in Federal Way during January?
What are the most humid months in Federal Way?
What is the average humidity in January in Federal Way?
How much does it rain in Federal Way in January?
How many days does it snow in January in Federal Way?
How many hours of daylight does Federal Way have in January?
When are sunrise and sunset in January in Federal Way?
How long on average sun shines in January in Federal Way?
What are the months with the lowest UV index in Federal Way?
What is the UV index reading in January in Federal Way?
Average temperature in January
Federal Way, WA
- Average high temperature in January: 44.4°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in January: 35.1°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in January
Federal Way, WA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in January
Federal Way, WA
- Average wind speed in January: 4.9mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity in January
Federal Way, WA
- Average humidity in January: 86%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is July (68%).
Average rainfall in January
Federal Way, WA
- Average rainfall in January: 4.53"
The wettest month (with the highest rainfall) is December (4.72").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in January
Federal Way, WA
- Average rainfall days in January: 17.8 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in January
Federal Way, WA
- Average snowfall in January: 1.61"
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
Federal Way, WA
- Average snowfall days in January: 2.5 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Federal Way, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in January
Federal Way, WA
- Average sunshine days in January: 11 days
The month with the most sunshine days is August (22.8 days).
The months with the least sunshine days are February and November (8.5 days).
Average UV index in January
Federal Way, WA
- Average UV index in January: 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 January
Federal Way, 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 25).
Average visibility in January
Federal Way, 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).
Federal Way, Washington, USA
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