January weather forecastDallesport, WA
January
Weather in January
January, like December, in Dallesport, Washington, is a wintry winter month, with an average temperature fluctuating between 28.2°F (-2.1°C) and 38.1°F (3.4°C).Temperature
The transition into January is marked with an average high-temperature of a still wintry 38.1°F (3.4°C), showing an insignificant shift from December's 37°F (2.8°C). Nighttime temperatures in Dallesport, Washington, consistently average a freezing cold 28.2°F (-2.1°C) during January.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 85%.Rainfall
The month with the most rainfall is January, when the rain falls for 16.2 days and typically aggregates up to 2.99" (76mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Dallesport, in January, snow falls for 3.5 days, with typically accumulated 2.68" (68mm) of snow. In Dallesport, during the entire year, snow falls for 14.3 days and aggregates up to 11.06" (281mm) of snow.Daylight
The average length of the day in January is 9h and 11min.On the first day of January, sunrise is at 7:45 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:09 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 4.8h 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during January leads to these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dallesport, WA
- Average high temperature in January: 38.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in January: 28.2°F
The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in January
Dallesport, WA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in January
Dallesport, WA
- Average wind speed in January: 4.8mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity in January
Dallesport, 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 (51%).
Average rainfall in January
Dallesport, WA
- Average rainfall in January: 2.99"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in January
Dallesport, WA
- Average rainfall days in January: 16.2 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in January
Dallesport, WA
- Average snowfall in January: 2.68"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Dallesport, WA
- Average snowfall days in January: 3.5 days
The month with the highest number of snowfall days is December (4.4 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
Dallesport, WA
- Average daylight in January: 9h and 12min
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 48min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Dallesport, WA
- Average sunshine days in January: 11.6 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in January
Dallesport, 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
Dallesport, WA
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in January
Dallesport, WA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
