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
Walnut Grove indicates an average high-temperature of a still frosty 45.1°F (7.3°C) in January, showing minor variation from December's 43.7°F (6.5°C). Throughout the nights in January, Walnut Grove experiences an average low-temperature of 34.9°F (1.6°C).Humidity
The months with the highest humidity in Walnut Grove are January and February, with an average relative humidity of 84%.Rainfall
In January, the rain falls for 19.3 days. Throughout January, 5.04" (128mm) of precipitation is accumulated. In Walnut Grove, during the entire year, the rain falls for 177.1 days and collects up to 34.29" (871mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Walnut Grove, in January, during 1.3 snowfall days, 0.63" (16mm) of snow is typically accumulated. Throughout the year, there are 5.9 snowfall days, and 3.74" (95mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 10min.On the first day of January, sunrise is at 7:50 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:14 pm PST.
Sunshine
The months with the least sunshine are January and February, with an average of 4.1h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In January, a regular UV index of 2 translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January in Walnut Grove?
What are the most humid months in Walnut Grove?
What is the average humidity in January?
How much 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?
What are the months with the least sunshine?
How many hours of sunshine does Walnut Grove have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Walnut Grove, WA
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in January: 34.9°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in January
Walnut Grove, 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
Walnut Grove, WA
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Walnut Grove, WA
- Average humidity in January: 84%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in January
Walnut Grove, WA
- Average rainfall in January: 5.04"
The wettest month (with the highest rainfall) is December (5.08").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in January
Walnut Grove, WA
- Average rainfall days in January: 19.3 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in January
Walnut Grove, WA
- Average snowfall in January: 0.63"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Walnut Grove, WA
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Walnut Grove, WA
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 6min).
Average sunshine days in January
Walnut Grove, WA
- Average sunshine days in January: 10.4 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in January
Walnut Grove, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Walnut Grove, WA
- Average cloud cover in January: 57
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in January
Walnut Grove, WA
- Average visibility in January: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Walnut Grove, Washington, USA
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