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 observes an average high-temperature of a still frosty 46°F (7.8°C), nearly identical to December's 45.1°F (7.3°C). Nighttime temperature reflects an average dip to an icy 38.1°F (3.4°C) in January, subtly cooler than its daytime highs.Humidity
In Grayland, Washington, the average relative humidity in January is 86%.Rainfall
In Grayland, in January, it is raining for 19.4 days, with typically 7.87" (200mm) of accumulated precipitation. Throughout the year, there are 186.2 rainfall days, and 48.78" (1239mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and November. January is the first month it typically snows. Throughout January, in the average 1 snowfall days, it receives 0.67" (17mm) of snow. Throughout the year, there are 4.3 snowfall days, and 2.52" (64mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 3min.On the first day of January, sunrise is at 8:01 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:17 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 3.4h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 in January translates into these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
When does it start snowing?
How many hours of daylight does Grayland have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Grayland have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Grayland, WA
- Average high temperature in January: 46°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is December (45.1°F).
- Average low temperature in January: 38.1°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (37.6°F).
Average pressure in January
Grayland, WA
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in January
Grayland, WA
- Average wind speed in January: 8.2mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in January
Grayland, WA
- Average humidity in January: 86%
The months with the highest relative humidity are November and December (87%).
The month with the lowest relative humidity is July (79%).
Average rainfall in January
Grayland, WA
- Average rainfall in January: 7.87"
The wettest month (with the highest rainfall) is December (7.99").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in January
Grayland, WA
- Average rainfall days in January: 19.4 days
The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in January
Grayland, WA
- Average snowfall in January: 0.67"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in January
Grayland, WA
- Average snowfall days in January: 1 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Grayland, WA
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Grayland, WA
- Average sunshine days in January: 10.2 days
The month with the most sunshine days is August (21.4 days).
The months with the least sunshine days are February and November (8 days).
Average UV index in January
Grayland, WA
- Average UV index in January: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Grayland, WA
- Average cloud cover in January: 64
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in January
Grayland, WA
- Average visibility in January: 5mi
The months with the highest visibility are March and April (6mi).
The month with the lowest visibility is August (4mi).
Grayland, Washington, USA
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