January weather forecastUnion Gap, WA
January
Weather in January
January, the same as December, is a wintry winter month in Union Gap, Washington, with an average temperature varying between 37.6°F (3.1°C) and 26.6°F (-3°C).Temperature
The average high-temperature is a still wintry 37.6°F (3.1°C) in January, hardly different from the 36.9°F (2.7°C) recorded in December. In January, the average low-temperature is a freezing cold 26.6°F (-3°C).Humidity
With an average relative humidity of 81%, January is the most humid month.Rainfall
January is the month with the most rainfall. Rain falls for 10.3 days and accumulates 0.87" (22mm) of precipitation.Snowfall
January through March, September, November and December are months with snowfall. In Union Gap, in January, during 4.5 snowfall days, 2.05" (52mm) of snow is typically accumulated. In Union Gap, during the entire year, snow falls for 18.5 days and aggregates up to 7.8" (198mm) of snow.Daylight
The average length of the day in January is 9h and 5min.On the first day of the month, sunrise is at 7:45 am and sunset at 4:24 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:03 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 5.6h 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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Union Gap, WA
- Average high temperature in January: 37.6°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in January: 26.6°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in January
Union Gap, 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 (29.93"Hg).
Average wind speed in January
Union Gap, WA
- Average wind speed in January: 4.5mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity in January
Union Gap, WA
- Average humidity in January: 81%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in January
Union Gap, WA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in January
Union Gap, WA
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).
Average snowfall in January
Union Gap, WA
- Average snowfall in January: 2.05"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in January
Union Gap, WA
- Average snowfall days in January: 4.5 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Union Gap, WA
- Average daylight in January: 9h and 6min
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: 5h and 36min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in January
Union Gap, WA
- Average sunshine days in January: 17 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in January
Union Gap, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Union Gap, WA
- Average cloud cover in January: 40
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in January
Union Gap, WA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
