Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The arrival of January brings an average high-temperature of a still frosty 46.2°F (7.9°C), nearly identical to December's 44.4°F (6.9°C). Clackamas, in January, observes a steady average low-temperature of 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. Throughout the year, in Clackamas, there are 169.9 rainfall days, and 32.76" (832mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Clackamas, in January, during 1.3 snowfall days, 0.67" (17mm) of snow is typically accumulated. In Clackamas, during the entire year, snow falls for 6.1 days and aggregates up to 4.17" (106mm) of snow.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 are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 in January translates into these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Clackamas in January?
What is the average humidity in January in Clackamas?
How many days does it rain in January in Clackamas?
How many days does it snow in January in Clackamas?
How many hours of daylight does Clackamas have in January?
When are sunrise and sunset in January in Clackamas?
How many hours of sunshine does Clackamas have in January?
What is the month with the lowest UV index in Clackamas?
What is the UV index reading in January in Clackamas?
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 1min
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 2min
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).
Clackamas, Oregon, USA
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