January weather forecastGlenwood, WA
January
Weather in January
January, the same as December, is an icy winter month in Glenwood, Washington, with an average temperature varying between 36.7°F (2.6°C) and 26.8°F (-2.9°C).Temperature
Glenwood ushers in January with an average high-temperature of a still cold 36.7°F (2.6°C), showing a close resemblance to the previous month. In January, the average low-temperature records at a subzero cold 26.8°F (-2.9°C) during the nights.Humidity
January, February and December, with an average relative humidity of 88%, are the most humid months.Rainfall
The month with the most rainfall is January, when the rain falls for 17.1 days and typically aggregates up to 4.88" (124mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. January is the month with the most snowfall in Glenwood. Snow falls for 5.3 days and accumulates 6.22" (158mm) of snow.Daylight
The average length of the day in January is 9h and 8min.On the first day of the month, sunrise is at 7:47 am and sunset at 4:30 pm. On the last day of January, sunrise is at 7:28 am and sunset at 5:08 pm PST.
Sunshine
January has the least sunshine of the year, with an average of 3.9h of sunshine.UV index
The months with the lowest UV index are January and February, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the UV index of 1 transforms into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Glenwood, WA
- Average high temperature in January: 36.7°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (35.2°F).
- Average low temperature in January: 26.8°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).
Average pressure in January
Glenwood, WA
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed in January
Glenwood, WA
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is June (6.4mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity in January
Glenwood, WA
- Average humidity in January: 88%
The months with the highest relative humidity are January, February and December (88%).
The months with the lowest relative humidity are July and August (58%).
Average rainfall in January
Glenwood, WA
- Average rainfall in January: 4.88"
The wettest month (with the highest rainfall) is January (4.88").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Glenwood, WA
- Average rainfall days in January: 17.1 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (3.8 days).
Average snowfall in January
Glenwood, WA
- Average snowfall in January: 6.22"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Glenwood, WA
- Average snowfall days in January: 5.3 days
The month with the highest number of snowfall days is December (6.5 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
Glenwood, WA
- Average daylight in January: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 3h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Glenwood, WA
- Average sunshine days in January: 10.3 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in January
Glenwood, WA
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in January
Glenwood, WA
- Average cloud cover in January: 61
The months with the most cloud cover are January and February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in January
Glenwood, WA
- Average visibility in January: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).





