January weather forecastCathan, WA
January
Weather in January
January is a chilly winter month in Cathan, Washington, with an average temperature varying between 43.3°F (6.3°C) and 34.7°F (1.5°C).Temperature
Shifting into January, Cathan records an average high-temperature of a chilly 43.3°F (6.3°C), presenting minor fluctuations compared to the previous month. Cathan registers a subtle dip to an average of 34.7°F (1.5°C) during the nights of January.Humidity
The months with the highest humidity are January, February, November and December, with an average relative humidity of 85%.Rainfall
In Cathan, in January, it is raining for 18.1 days, with typically 4.69" (119mm) of accumulated precipitation. Throughout the year, there are 188.6 rainfall days, and 34.92" (887mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Cathan, in January, snow falls for 2.3 days, with typically accumulated 2.28" (58mm) of snow. Throughout the year, there are 11.6 snowfall days, and 9.61" (244mm) of snow is accumulated.Daylight
The average length of the day in January is 8h and 54min.On the first day of January, sunrise is at 7:59 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:06 pm PST.
Sunshine
The average sunshine in January is 4.2h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Cathan, WA
- Average high temperature in January: 43.3°F
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is December (41.7°F).
- Average low temperature in January: 34.7°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is February (33.8°F).
Average pressure in January
Cathan, WA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Cathan, WA
- Average wind speed in January: 5.6mph
The windiest months (with the highest average wind speed) are January and November (5.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in January
Cathan, WA
- Average humidity in January: 85%
The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Cathan, WA
- Average rainfall in January: 4.69"
The wettest month (with the highest rainfall) is November (4.92").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in January
Cathan, WA
- Average rainfall days in January: 18.1 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in January
Cathan, WA
- Average snowfall in January: 2.28"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Cathan, WA
- Average snowfall days in January: 2.3 days
The month with the highest number of snowfall days is February (4.3 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
Cathan, 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: 4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in January
Cathan, WA
- Average sunshine days in January: 10.4 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (8.1 days).
Average UV index in January
Cathan, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in January
Cathan, WA
- Average cloud cover in January: 56
The month with the most cloud cover is December (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in January
Cathan, WA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
