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
January's onset records a minor alteration in the average high-temperature to a frosty 44.8°F (7.1°C) from December's 42.6°F (5.9°C). Oakville's average low-temperature during January nights is observed to be a cold 34.2°F (1.2°C).Humidity
In January, the average relative humidity in Oakville is 89%.Rainfall
January is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.86" (98mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Oakville, in January, during 1.8 snowfall days, 1.22" (31mm) of snow is typically accumulated. In Oakville, during the entire year, snow falls for 7.9 days and aggregates up to 4.02" (102mm) of snow.Daylight
In January, the average length of the day is 9h and 3min.On the first day of the month, sunrise is at 7:57 am and sunset at 4:34 pm. On the last day of January, in Oakville, sunrise is at 7:38 am and sunset at 5:14 pm PST.
Sunshine
The average sunshine in January is 3.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Oakville, Washington. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In January, the maximum UV index of 2 suggests these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Oakville in January?
What is the average humidity in January in Oakville?
What is the wettest month in Oakville?
How many days does it rain in January in Oakville?
How many days does it snow in January in Oakville?
How many hours of daylight does Oakville have in January?
When is the sunrise / sunset in January in Oakville?
How many hours of sunshine does Oakville have in January?
When is the lowest UV index in Oakville?
What is the UV index reading in January in Oakville?
Average temperature in January
Oakville, WA
- Average high temperature in January: 44.8°F
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in January: 34.2°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in January
Oakville, 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 (30.02"Hg).
Average wind speed in January
Oakville, WA
- Average wind speed in January: 4.5mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in January
Oakville, WA
- Average humidity in January: 89%
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Oakville, WA
- Average rainfall in January: 3.86"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in January
Oakville, WA
- Average rainfall days in January: 17.8 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in January
Oakville, WA
- Average snowfall in January: 1.22"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Oakville, WA
- Average snowfall days in January: 1.8 days
The month with the highest number of snowfall days is February (2.7 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
Oakville, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in January
Oakville, WA
- Average sunshine days in January: 10.7 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index in January
Oakville, 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
Oakville, WA
- Average cloud cover in January: 66
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in January
Oakville, WA
- Average visibility in January: 4mi
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).
Oakville, Washington, USA
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