January weather forecastSappho, WA
January
Weather in January
January is a chilly winter month in Sappho, Washington, with an average temperature varying between 44.1°F (6.7°C) and 37°F (2.8°C).Temperature
The shift into January uncovers an average high-temperature of a frosty 44.1°F (6.7°C), subtly different from the previous month. January nights reveal a minor deviation from daytime highs, with a mean low-temperature of 37°F (2.8°C).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 87%.Rainfall
January is the month with the most rainfall. Rain falls for 15.6 days and accumulates 3.66" (93mm) of precipitation.Snowfall
January through April, September and December are months with snowfall in Sappho. January is the month with the most snowfall in Sappho. Snow falls for 1 days and accumulates 1.14" (29mm) of snow.Daylight
In January, the average length of the day is 8h and 54min.On the first day of the month, sunrise is at 8:07 am and sunset at 4:34 pm. On the last day of January, sunrise is at 7:46 am and sunset at 5:14 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index in Sappho are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 2 in January leads to these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Sappho, WA
- Average high temperature in January: 44.1°F
The warmest month (with the highest average high temperature) is August (67.6°F).
The month with the lowest average high temperature is December (42.4°F).
- Average low temperature in January: 37°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is February (36°F).
Average pressure in January
Sappho, WA
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is July (30.07"Hg).
The month with the lowest atmospheric pressure is March (29.98"Hg).
Average wind speed in January
Sappho, WA
- Average wind speed in January: 7.4mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in January
Sappho, WA
- Average humidity in January: 87%
The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are May, July and August (80%).
Average rainfall in January
Sappho, WA
- Average rainfall in January: 3.66"
The wettest month (with the highest rainfall) is January (3.66").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in January
Sappho, WA
- Average rainfall days in January: 15.6 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in January
Sappho, WA
- Average snowfall in January: 1.14"
The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August, October and November (0").
Average snowfall days in January
Sappho, WA
- Average snowfall days in January: 1 days
The month with the highest number of snowfall days is February (1.9 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
Sappho, WA
- Average daylight in January: 8h and 54min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 3h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Sappho, WA
- Average sunshine days in January: 12.3 days
The month with the most sunshine days is July (23 days).
The month with the least sunshine days is November (11.7 days).
Average UV index in January
Sappho, WA
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Sappho, WA
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Sappho, WA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, October, November and December (6mi).
The months with the lowest visibility are January, May, June, July, August and September (5mi).
