January weather forecastMaple Valley, WA
January
Weather in January
January, like December, in Maple Valley, Washington, is a wintry winter month, with an average temperature fluctuating between 32.7°F (0.4°C) and 42.4°F (5.8°C).Temperature
Maple Valley's shift from December to January is accompanied by an average high-temperature of a still icy 42.4°F (5.8°C), a slight deviation from 40.8°F (4.9°C). Throughout January, the nighttime temperature averages to a still icy 32.7°F (0.4°C).Humidity
January and February, with an average relative humidity of 86%, are the most humid months.Rainfall
In Maple Valley, in January, it is raining for 18.2 days, with typically 5.31" (135mm) of accumulated precipitation. Throughout the year, there are 182.4 rainfall days, and 36.77" (934mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Maple Valley. In Maple Valley, during January, snow falls for 3.3 days and regularly aggregates up to 2.83" (72mm) of snow. In Maple Valley, during the entire year, snow falls for 19.7 days and aggregates up to 11.5" (292mm) of snow.Daylight
The average length of the day in January in Maple Valley, Washington, is 8h and 59min.On the first day of January, sunrise is at 7:55 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:07 pm PST.
Sunshine
January and December, with an average of 4.1h of sunshine, are months with the least sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Maple Valley, WA
- Average high temperature in January: 42.4°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is December (40.8°F).
- Average low temperature in January: 32.7°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is February (31.6°F).
Average pressure in January
Maple Valley, WA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30"Hg).
Average wind speed in January
Maple Valley, WA
- Average wind speed in January: 5.2mph
The windiest month (with the highest average wind speed) is January (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in January
Maple Valley, WA
- Average humidity in January: 86%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is July (70%).
Average rainfall in January
Maple Valley, WA
- Average rainfall in January: 5.31"
The wettest month (with the highest rainfall) is December (5.43").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in January
Maple Valley, WA
- Average rainfall days in January: 18.2 days
The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in January
Maple Valley, WA
- Average snowfall in January: 2.83"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Maple Valley, WA
- Average snowfall days in January: 3.3 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Maple Valley, 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: 4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in January
Maple Valley, WA
- Average sunshine days in January: 10.5 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in January
Maple Valley, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in January
Maple Valley, WA
- Average cloud cover in January: 57
The months with the most cloud cover are January, February, March and December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Maple Valley, WA
- Average visibility in January: 4mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February and December (4mi).
