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
January's advent denotes a minor fluctuation in the average high-temperature to a still chilly 45.5°F (7.5°C) from December's 43.7°F (6.5°C). An average low-temperature of 35.2°F (1.8°C) marks the nights in Steilacoom throughout January.Humidity
January and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In January, in Steilacoom, Washington, the rain falls for 18.3 days. Throughout January, 4.53" (115mm) of precipitation is accumulated. Throughout the year, there are 172.9 rainfall days, and 30.08" (764mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In January, it is snowing for 1.9 days. Throughout January, 1.26" (32mm) of snow is accumulated. In Steilacoom, Washington, during the entire year, snow falls for 8.9 days and aggregates up to 5.04" (128mm) of snow.Daylight
The average length of the day in January in Steilacoom is 9h and 1min.On the first day of the month, sunrise is at 7:56 am and sunset at 4:31 pm. On the last day of January, sunrise is at 7:36 am and sunset at 5:10 pm PST.
Sunshine
The average sunshine in January is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Steilacoom. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 in January translates into these instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What is the temperature in January in Steilacoom?
What is the most humid month in Steilacoom?
What is the average humidity in January in Steilacoom?
How many days does it rain in January in Steilacoom?
How many days does it snow in January in Steilacoom?
What is the average length of the day in January in Steilacoom?
What time are sunrise and sunset in January in Steilacoom?
How many hours of sunshine does Steilacoom have in January?
What are the months with the lowest UV index in Steilacoom?
How high is the UV index in January in Steilacoom?
Average temperature in January
Steilacoom, WA
- Average high temperature in January: 45.5°F
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in January: 35.2°F
The month with the highest average low temperature is August (52.7°F).
The coldest months (with the lowest average low temperature) are February and December (34.3°F).
Average pressure in January
Steilacoom, WA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in January
Steilacoom, WA
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in January
Steilacoom, WA
- Average humidity in January: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (68%).
Average rainfall in January
Steilacoom, WA
- Average rainfall in January: 4.53"
The wettest month (with the highest rainfall) is December (4.69").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in January
Steilacoom, WA
- Average rainfall days in January: 18.3 days
The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (5 days).
Average snowfall in January
Steilacoom, WA
- Average snowfall in January: 1.26"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Steilacoom, WA
- Average snowfall days in January: 1.9 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, September and October (0 days).
Average daylight in January /
Average sunshine in January
Steilacoom, 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 36min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in January
Steilacoom, WA
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (9 days).
Average UV index in January
Steilacoom, 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
Steilacoom, WA
- Average cloud cover in January: 58
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Steilacoom, WA
- Average visibility in January: 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).
Steilacoom, Washington, USA
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