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
Rollingbay starts January with an average high-temperature of a still frosty 45.3°F (7.4°C), a minor shift from December's 43.5°F (6.4°C). Rollingbay maintains a minor drop in temperature during January nights, with averages of 37°F (2.8°C).Humidity
January and December, with an average relative humidity of 85%, are the most humid months in Rollingbay.Rainfall
In Rollingbay, in January, it is raining for 17 days, with typically 3.54" (90mm) of accumulated precipitation. Throughout the year, there are 172.2 rainfall days, and 23.7" (602mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Rollingbay. In Rollingbay, in January, snow falls for 2 days, with typically accumulated 0.87" (22mm) of snow. In Rollingbay, during the entire year, snow falls for 8.7 days and aggregates up to 4.25" (108mm) of snow.Daylight
In Rollingbay, the average length of the day in January is 8h and 57min.On the first day of January in Rollingbay, sunrise is at 7:58 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:08 pm PST.
Sunshine
The average sunshine in January in Rollingbay, Washington, is 4.5h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the temperature in January in Rollingbay?
What are the most humid months in Rollingbay?
What is the average humidity in January in Rollingbay?
How much does it rain in Rollingbay in January?
How many days does it snow in January in Rollingbay?
How many hours of daylight does Rollingbay have in January?
What time are sunrise and sunset in January in Rollingbay?
How many hours of sunshine does Rollingbay have in January?
What is the month with the lowest UV index in Rollingbay?
What is the UV index reading in January in Rollingbay?
Average temperature in January
Rollingbay, WA
- Average high temperature in January: 45.3°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 (43.5°F).
- Average low temperature in January: 37°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (36.3°F).
Average pressure in January
Rollingbay, WA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in January
Rollingbay, WA
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest months (with the lowest average wind speed) are July and August (3.7mph).
Average humidity in January
Rollingbay, WA
- Average humidity in January: 85%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in January
Rollingbay, WA
- Average rainfall in January: 3.54"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in January
Rollingbay, WA
- Average rainfall days in January: 17 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in January
Rollingbay, WA
- Average snowfall in January: 0.87"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Rollingbay, WA
- Average snowfall days in January: 2 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Rollingbay, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in January
Rollingbay, WA
- Average sunshine days in January: 10.9 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is November (9.2 days).
Average UV index in January
Rollingbay, WA
- Average UV index in January: 2
The months with the highest UV index are June and 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
Rollingbay, WA
- Average cloud cover in January: 54
The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in January
Rollingbay, WA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Rollingbay, Washington, USA
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