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 still icy 33.3°F (0.7°C), almost identical to the preceding month. Nine Mile Falls experiences a consistent average temperature of 22.8°F (-5.1°C) throughout the nights in January.Humidity
With an average relative humidity of 89%, January is the most humid month.Rainfall
In Nine Mile Falls, during January, the rain falls for 9.2 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 127.8 rainfall days, and 16.93" (430mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. January is the month with the most snowfall in Nine Mile Falls. Snow falls for 14.9 days and accumulates 10.39" (264mm) of snow.Daylight
In Nine Mile Falls, the average length of the day in January is 8h and 56min.On the first day of the month, sunrise is at 7:38 am and sunset at 4:08 pm. On the last day of January, sunrise is at 7:18 am and sunset at 4:48 pm PST.
Sunshine
The average sunshine in January is 4h.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
When does it snow the most?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the UV index intensity in January?
Average temperature in January
Nine Mile Falls, WA
- Average high temperature in January: 33.3°F
The warmest months (with the highest average high temperature) are July and August (83.7°F).
The month with the lowest average high temperature is December (32.2°F).
- Average low temperature in January: 22.8°F
The month with the highest average low temperature is August (59°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure in January
Nine Mile Falls, WA
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in January
Nine Mile Falls, WA
- Average wind speed in January: 5.9mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in January
Nine Mile Falls, WA
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (38%).
Average rainfall in January
Nine Mile Falls, WA
- Average rainfall in January: 2.09"
The wettest month (with the highest rainfall) is March (2.13").
The driest month (with the least rainfall) is August (0.35").
Average rainfall days in January
Nine Mile Falls, WA
- Average rainfall days in January: 9.2 days
The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is July (4.9 days).
Average snowfall in January
Nine Mile Falls, WA
- Average snowfall in January: 10.39"
The month with the highest snowfall is January (10.39").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Nine Mile Falls, WA
- Average snowfall days in January: 14.9 days
The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Nine Mile Falls, WA
- Average daylight in January: 8h and 5min
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 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in January
Nine Mile Falls, WA
- Average sunshine days in January: 13 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is March (9.8 days).
Average UV index in January
Nine Mile Falls, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in January
Nine Mile Falls, WA
- Average cloud cover in January: 59
The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in January
Nine Mile Falls, WA
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Nine Mile Falls, Washington, USA
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