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 commencement of January notes an average high-temperature of a still cold 42.4°F (5.8°C), exhibiting little difference from the previous month. During January, the nighttime temperature in Ariel, Washington, averages of 32.2°F (0.1°C).Humidity
The average relative humidity in January is 86%.Rainfall
January is the month with the most rainfall in Ariel. Rain falls for 18.3 days and accumulates 7.64" (194mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Ariel, during January, snow falls for 2.3 days and regularly aggregates up to 3.98" (101mm) of snow. In Ariel, during the entire year, snow falls for 11.4 days and aggregates up to 11.1" (282mm) of snow.Daylight
In January, the average length of the day in Ariel is 9h and 8min.On the first day of January in Ariel, sunrise is at 7:51 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:13 pm PST.
Sunshine
In Ariel, the average sunshine in January is 3.4h.UV index
In Ariel, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Ariel during January?
What is the average humidity in January in Ariel?
What is the rainiest month in Ariel?
How many days does it rain in January in Ariel?
How many days does it snow in January in Ariel?
How many hours of daylight does Ariel have in January?
When are sunrise and sunset in January in Ariel?
How many hours of sunshine does Ariel have in January?
How high is the UV index in January in Ariel?
Average temperature in January
Ariel, WA
- Average high temperature in January: 42.4°F
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (40.6°F).
- Average low temperature in January: 32.2°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure in January
Ariel, WA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Ariel, WA
- Average wind speed in January: 6.1mph
The windiest month (with the highest average wind speed) is January (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in January
Ariel, WA
- Average humidity in January: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall in January
Ariel, WA
- Average rainfall in January: 7.64"
The wettest month (with the highest rainfall) is January (7.64").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in January
Ariel, WA
- Average rainfall days in January: 18.3 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in January
Ariel, WA
- Average snowfall in January: 3.98"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Ariel, WA
- Average snowfall days in January: 2.3 days
The month with the highest number of snowfall days is February (4.2 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
Ariel, WA
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in January
Ariel, WA
- Average sunshine days in January: 10.2 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in January
Ariel, WA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in January
Ariel, WA
- Average cloud cover in January: 65
The months with the most cloud cover are February and December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Ariel, WA
- Average visibility in January: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
Ariel, Washington, USA
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