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 reports an average high-temperature of a cold 32°F (0°C), slightly varied from December's 30.2°F (-1°C). Snoqualmie Pass's average low-temperature for the month of January records at a freezing cold 21.4°F (-5.9°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 93%.Rainfall
The month with the most rainfall is January, when the rain falls for 6.8 days and typically aggregates up to 4.21" (107mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 20.3 days and accumulates 27.72" (704mm) of snow.Daylight
The average length of the day in January in Snoqualmie Pass, Washington, is 8h and 59min.On the first day of January in Snoqualmie Pass, sunrise is at 7:52 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:05 pm PST.
Sunshine
The months with the least sunshine are January and February, with an average of 3h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 1 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What are the most humid months?
What is the average humidity in January?
What is the wettest month?
How much does it rain in January?
When does it snow the most in Snoqualmie Pass?
How much does it snow in January?
How many hours of daylight does Snoqualmie Pass have in January?
When are sunrise and sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Snoqualmie Pass have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Snoqualmie Pass, WA
- Average high temperature in January: 32°F
The warmest month (with the highest average high temperature) is August (71.2°F).
The month with the lowest average high temperature is December (30.2°F).
- Average low temperature in January: 21.4°F
The month with the highest average low temperature is August (45°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in January
Snoqualmie Pass, WA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in January
Snoqualmie Pass, 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 September (3.9mph).
Average humidity in January
Snoqualmie Pass, WA
- Average humidity in January: 93%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is July (69%).
Average rainfall in January
Snoqualmie Pass, WA
- Average rainfall in January: 4.21"
The wettest month (with the highest rainfall) is January (4.21").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in January
Snoqualmie Pass, WA
- Average rainfall days in January: 6.8 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in January
Snoqualmie Pass, WA
- Average snowfall in January: 27.72"
The month with the highest snowfall is January (27.72").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Snoqualmie Pass, WA
- Average snowfall days in January: 20.3 days
The month with the highest number of snowfall days is December (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Snoqualmie Pass, 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: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 0min).
Average sunshine days in January
Snoqualmie Pass, WA
- Average sunshine days in January: 8.9 days
The month with the most sunshine days is August (20.2 days).
The month with the least sunshine days is February (6 days).
Average UV index in January
Snoqualmie Pass, WA
- Average UV index in January: 1
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 1).
Average cloud cover in January
Snoqualmie Pass, WA
- Average cloud cover in January: 69
The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Snoqualmie Pass, WA
- Average visibility in January: 3mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March and December (3mi).
Snoqualmie Pass, Washington, USA
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