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 experiences an average high-temperature of a still cold 37°F (2.8°C), barely different from December's 36°F (2.2°C). During the month of January, an average low-temperature of 27.7°F (-2.4°C) is recorded.Humidity
In Mill A, the average relative humidity in January is 87%.Rainfall
The month with the most rainfall is January, when the rain falls for 17.7 days and typically aggregates up to 5.67" (144mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Mill A, in January, during 3.4 snowfall days, 3.82" (97mm) of snow is typically accumulated. In Mill A, during the entire year, snow falls for 15.1 days and aggregates up to 14.33" (364mm) of snow.Daylight
In Mill A, the average length of the day in January is 9h and 10min.On the first day of January, sunrise is at 7:47 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:10 pm PST.
Sunshine
January has the least sunshine of the year, with an average of 3.7h of sunshine.UV index
January, February and November, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 1 during January, leads to the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. To guard against the harmful effects of the Sun, minimize exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What is the average humidity in January?
What is the rainiest month?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January in Mill A?
What is the month with the least sunshine in Mill A?
How many hours of sunshine does Mill A have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Mill A, WA
- Average high temperature in January: 37°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 (36°F).
- Average low temperature in January: 27.7°F
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in January
Mill A, WA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in January
Mill A, WA
- Average wind speed in January: 5.3mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in January
Mill A, WA
- Average humidity in January: 87%
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (59%).
Average rainfall in January
Mill A, WA
- Average rainfall in January: 5.67"
The wettest month (with the highest rainfall) is January (5.67").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in January
Mill A, WA
- Average rainfall days in January: 17.7 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (4.2 days).
Average snowfall in January
Mill A, WA
- Average snowfall in January: 3.82"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Mill A, WA
- Average snowfall days in January: 3.4 days
The month with the highest number of snowfall days is December (4.1 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
Mill A, 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 4min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Mill A, WA
- Average sunshine days in January: 10.2 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (8.4 days).
Average UV index in January
Mill A, WA
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in January
Mill A, WA
- Average cloud cover in January: 64
The months with the most cloud cover are January and February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in January
Mill A, WA
- Average visibility in January: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
Mill A, Washington, USA
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