January weather forecastClackamas, OR
January
Weather in January
January, the same as December, in Clackamas, Oregon, is a frosty winter month, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 46.2°F (7.9°C).Temperature
With the onset of January, the average high-temperature stands at a still chilly 46.2°F (7.9°C), closely aligned with December's 44.4°F (6.9°C). The average low-temperature, in January, is a wintry 35.2°F (1.8°C).Humidity
In January, the average relative humidity is 83%.Rainfall
In Clackamas, during January, the rain falls for 18.4 days and regularly aggregates up to 4.72" (120mm) of precipitation. In Clackamas, during the entire year, the rain falls for 169.9 days and collects up to 32.76" (832mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In January, it is snowing for 1.3 days. Throughout January, 0.67" (17mm) of snow is accumulated. Throughout the year, there are 6.1 snowfall days, and 4.17" (106mm) of snow is accumulated.Daylight
In Clackamas, the average length of the day in January is 9h and 12min.On the first day of January, sunrise is at 7:49 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:15 pm PST.
Sunshine
In January, the average sunshine is 4.4h.UV index
The months with the lowest UV index in Clackamas are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 during January leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take precaution! The reflection from snow can almost 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
Clackamas, OR
- Average high temperature in January: 46.2°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in January: 35.2°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in January
Clackamas, OR
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Clackamas, OR
- Average wind speed in January: 6mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in January
Clackamas, OR
- Average humidity in January: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (64%).
Average rainfall in January
Clackamas, OR
- Average rainfall in January: 4.72"
The wettest month (with the highest rainfall) is December (5.16").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Clackamas, OR
- Average rainfall days in January: 18.4 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (4 days).
Average snowfall in January
Clackamas, OR
- Average snowfall in January: 0.67"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Clackamas, OR
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is February (2.3 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
Clackamas, 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: 4h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in January
Clackamas, OR
- Average sunshine days in January: 11.1 days
The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in January
Clackamas, 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
Clackamas, OR
- Average cloud cover in January: 55
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in January
Clackamas, OR
- Average visibility in January: 5mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
