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
As Spanaway welcomes January, the average high-temperature is noted at a still frosty 45.5°F (7.5°C), closely aligning with the preceding month. Spanaway records a steady low-temperature average of 34.9°F (1.6°C) during January.Humidity
January and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In Spanaway, Washington, in January, it is raining for 18.2 days, with typically 4.53" (115mm) of accumulated precipitation. In Spanaway, Washington, during the entire year, the rain falls for 176.3 days and collects up to 30.28" (769mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Spanaway, Washington, during January, snow falls for 1.9 days and regularly aggregates up to 1.14" (29mm) of snow. In Spanaway, during the entire year, snow falls for 9.4 days and aggregates up to 4.84" (123mm) of snow.Daylight
In Spanaway, the average length of the day in January is 9h and 1min.On the first day of January, sunrise is at 7:55 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:10 pm PST.
Sunshine
In Spanaway, Washington, the average sunshine in January is 4.2h.UV index
The months with the lowest UV index in Spanaway are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average January temperature in Spanaway?
What is the most humid month in Spanaway?
What is the average humidity in January in Spanaway?
How many days does it rain in January in Spanaway?
How many days does it snow in January in Spanaway?
How many hours of daylight does Spanaway have in January?
When are sunrise and sunset in January in Spanaway?
How many hours of sunshine does Spanaway have in January?
When is the lowest UV index in Spanaway?
What is the UV index intensity in January in Spanaway?
Average temperature in January
Spanaway, WA
- Average high temperature in January: 45.5°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in January: 34.9°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (34.2°F).
Average pressure in January
Spanaway, 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
Spanaway, 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
Spanaway, 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 (69%).
Average rainfall in January
Spanaway, WA
- Average rainfall in January: 4.53"
The wettest month (with the highest rainfall) is December (4.76").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in January
Spanaway, WA
- Average rainfall days in January: 18.2 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in January
Spanaway, WA
- Average snowfall in January: 1.14"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Spanaway, WA
- Average snowfall days in January: 1.9 days
The month with the highest number of snowfall days is February (3.4 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
Spanaway, WA
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
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
Spanaway, WA
- Average sunshine days in January: 11.1 days
The month with the most sunshine days is August (23.3 days).
The months with the least sunshine days are February and March (9 days).
Average UV index in January
Spanaway, 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
Spanaway, WA
- Average cloud cover in January: 58
The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Spanaway, WA
- Average visibility in January: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
Spanaway, Washington, USA
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