January weather forecastCornelius, OR
January
Weather in January
January, the same as December, in Cornelius, Oregon, is a frosty winter month, with an average temperature varying between 34.7°F (1.5°C) and 45.3°F (7.4°C).Temperature
Upon the beginning of January, Cornelius's high-temperatures register at a still chilly 45.3°F (7.4°C), closely mirroring the preceding month. The average low-temperature, in January, is a wintry 34.7°F (1.5°C).Humidity
The months with the highest humidity are January, February, November and December, with an average relative humidity of 85%.Rainfall
January is the month with the most rainfall. Rain falls for 18.8 days and accumulates 4.57" (116mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Cornelius, in January, snow falls for 1.6 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, there are 6.6 snowfall days, and 4.53" (115mm) of snow is accumulated.Daylight
In Cornelius, the average length of the day in January is 9h and 11min.On the first day of the month, sunrise is at 7:52 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:34 am and sunset at 5:16 pm PST.
Sunshine
In Cornelius, the average sunshine in January is 3.8h.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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 2 in January 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. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Cornelius, OR
- Average high temperature in January: 45.3°F
The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (43.9°F).
- Average low temperature in January: 34.7°F
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in January
Cornelius, OR
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in January
Cornelius, OR
- Average wind speed in January: 4.9mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest months (with the lowest average wind speed) are June, August and September (4.3mph).
Average humidity in January
Cornelius, OR
- 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 August (64%).
Average rainfall in January
Cornelius, OR
- Average rainfall in January: 4.57"
The wettest month (with the highest rainfall) is January (4.57").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in January
Cornelius, OR
- Average rainfall days in January: 18.8 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in January
Cornelius, OR
- Average snowfall in January: 0.79"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Cornelius, OR
- Average snowfall days in January: 1.6 days
The month with the highest number of snowfall days is February (2.4 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
Cornelius, OR
- 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: 3h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in January
Cornelius, OR
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (8.5 days).
Average UV index in January
Cornelius, OR
- 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
Cornelius, OR
- Average cloud cover in January: 61
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in January
Cornelius, OR
- Average visibility in January: 4mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January and February (4mi).
