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
Grays River records a slight change with January's average high-temperatures adjusting to a still chilly 45.7°F (7.6°C) from December's 44.6°F (7°C). Grays River's January nights experience a subtle temperature dip to an average of 38.3°F (3.5°C).Humidity
January, February, November and December, with an average relative humidity of 85%, are the most humid months.Rainfall
In Grays River, in January, during 20 rainfall days, 6.26" (159mm) of precipitation is typically accumulated. In Grays River, during the entire year, the rain falls for 195.9 days and collects up to 40.59" (1031mm) of precipitation.Snowfall
January through March and December are months with snowfall. The months with the most snowfall are January and February, with an average 0.87" (22mm) of accumulated snow.Daylight
The average length of the day in January is 9h and 6min.On the first day of the month, sunrise is at 7:57 am and sunset at 4:38 pm. On the last day of January, sunrise is at 7:38 am and sunset at 5:16 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 3.7h 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 hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
When does it snow the most in Grays River?
How many days does it snow in January?
How many hours of daylight does Grays River have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Grays River have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Grays River, WA
- Average high temperature in January: 45.7°F
The warmest month (with the highest average high temperature) is August (68.2°F).
The month with the lowest average high temperature is December (44.6°F).
- Average low temperature in January: 38.3°F
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (37.6°F).
Average pressure in January
Grays River, WA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).
Average wind speed in January
Grays River, WA
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in January
Grays River, WA
- Average humidity in January: 85%
The months with the highest relative humidity are January, February, November and December (85%).
The months with the lowest relative humidity are May and July (81%).
Average rainfall in January
Grays River, WA
- Average rainfall in January: 6.26"
The wettest month (with the highest rainfall) is December (6.42").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days in January
Grays River, WA
- Average rainfall days in January: 20 days
The month with the highest number of rainy days is December (21.9 days).
The month with the least rainy days is August (7.8 days).
Average snowfall in January
Grays River, WA
- Average snowfall in January: 0.87"
The months with the highest snowfall are January and February (0.87").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Grays River, WA
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is February (1.4 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
Grays River, 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 August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Grays River, WA
- Average sunshine days in January: 9.8 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in January
Grays River, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Grays River, WA
- Average cloud cover in January: 61
The months with the most cloud cover are January and February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in January
Grays River, WA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
Grays River, Washington, USA
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