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
With the onset of January, Keizer's average high-temperature clocks in at a still frosty 47.7°F (8.7°C), showing a minor fluctuation from the previous month. In the month of January, Keizer records a consistent average low-temperature of 35.2°F (1.8°C).Humidity
The months with the highest humidity in Keizer are January, February and December, with an average relative humidity of 86%.Rainfall
In Keizer, Oregon, in January, during 17.1 rainfall days, 3.66" (93mm) of precipitation is typically accumulated. In Keizer, Oregon, during the entire year, the rain falls for 162.5 days and collects up to 25.08" (637mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Keizer. In Keizer, in January, during 0.9 snowfall days, 0.43" (11mm) of snow is typically accumulated. Throughout the year, in Keizer, Oregon, there are 4.7 snowfall days, and 2.48" (63mm) of snow is accumulated.Daylight
In Keizer, the average length of the day in January is 9h and 14min.On the first day of the month, sunrise is at 7:50 am and sunset at 4:40 pm. On the last day of January, sunrise is at 7:32 am and sunset at 5:18 pm PST.
Sunshine
The average sunshine in January is 4.3h.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 threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during January translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What is the temperature in January in Keizer?
What are the most humid months in Keizer?
What is the average humidity in January in Keizer?
How much does it rain in Keizer in January?
How many days does it snow in January in Keizer?
What is the average length of the day in January in Keizer?
What time are sunrise and sunset in January in Keizer?
How many hours of sunshine does Keizer have in January?
What is the month with the lowest UV index in Keizer?
How high is the UV index in January in Keizer?
Average temperature in January
Keizer, OR
- Average high temperature in January: 47.7°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (45.5°F).
- Average low temperature in January: 35.2°F
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).
Average pressure in January
Keizer, 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
Keizer, OR
- Average wind speed in January: 5.5mph
The windiest months (with the highest average wind speed) are January, March and November (5.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in January
Keizer, OR
- Average humidity in January: 86%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (65%).
Average rainfall in January
Keizer, OR
- Average rainfall in January: 3.66"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in January
Keizer, OR
- Average rainfall days in January: 17.1 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is July (3.9 days).
Average snowfall in January
Keizer, OR
- Average snowfall in January: 0.43"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Keizer, OR
- Average snowfall days in January: 0.9 days
The month with the highest number of snowfall days is February (1.8 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
Keizer, 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 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in January
Keizer, OR
- Average sunshine days in January: 12.4 days
The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in January
Keizer, 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
Keizer, OR
- Average cloud cover in January: 57
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in January
Keizer, OR
- Average visibility in January: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Keizer, Oregon, USA
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