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 advent of January brings an average high-temperature of a chilly 44.1°F (6.7°C), exhibiting minor difference from the previous month. January nighttime temperatures in Granite Falls hover close to the daytime peak with an average of 35.8°F (2.1°C).Humidity
The months with the highest humidity in Granite Falls are January and December, with an average relative humidity of 85%.Rainfall
In Granite Falls, Washington, in January, it is raining for 18.2 days, with typically 3.94" (100mm) of accumulated precipitation. Throughout the year, there are 179.1 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
Months with snowfall in Granite Falls are January through April, November and December. In Granite Falls, during January, snow falls for 1.9 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, there are 8.9 snowfall days, and 6.1" (155mm) of snow is accumulated.Daylight
In January, the average length of the day in Granite Falls is 8h and 54min.On the first day of the month, sunrise is at 7:57 am and sunset at 4:24 pm. On the last day of January, in Granite Falls, Washington, sunrise is at 7:37 am and sunset at 5:05 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 Granite Falls are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 2 in January leads to these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is January cold in Granite Falls?
What are the most humid months in Granite Falls?
What is the average humidity in January in Granite Falls?
How much does it rain in Granite Falls in January?
How much does it snow in Granite Falls in January?
What is the average length of the day in January in Granite Falls?
When are sunrise and sunset in January in Granite Falls?
What are the months with the least sunshine in Granite Falls?
How long on average sun shines in January in Granite Falls?
When is the lowest UV index in Granite Falls?
How high is the UV index in January in Granite Falls?
Average temperature in January
Granite Falls, WA
- Average high temperature in January: 44.1°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in January: 35.8°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in January
Granite Falls, WA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Granite Falls, WA
- Average wind speed in January: 5.7mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in January
Granite Falls, WA
- Average humidity in January: 85%
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Granite Falls, WA
- Average rainfall in January: 3.94"
The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in January
Granite Falls, WA
- Average rainfall days in January: 18.2 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in January
Granite Falls, WA
- Average snowfall in January: 1.34"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Granite Falls, WA
- Average snowfall days in January: 1.9 days
The month with the highest number of snowfall days is February (3.1 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
Granite Falls, WA
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in January
Granite Falls, WA
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).
Average UV index in January
Granite Falls, 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
Granite Falls, 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
Granite Falls, WA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Granite Falls, Washington, USA
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