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
January reports an average high-temperature of a still cold 38.7°F (3.7°C), slightly varied from December's 36.9°F (2.7°C). During January, Altamont experiences a consistent low-temperature average of 25.7°F (-3.5°C).Humidity
January is the most humid month, with an average relative humidity of 84%.Rainfall
In Altamont, during January, the rain falls for 8.8 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, there are 100.4 rainfall days, and 13.15" (334mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Altamont. In Altamont, in January, snow falls for 12.3 days, with typically accumulated 8.78" (223mm) of snow. In Altamont, during the entire year, snow falls for 70.5 days and aggregates up to 42.52" (1080mm) of snow.Daylight
The average length of the day in January is 9h and 31min.On the first day of January, sunrise is at 7:35 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:19 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 5.3h of sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 2 suggests these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January in Altamont?
What is the UV index reading in January?
Average temperature in January
Altamont, OR
- Average high temperature in January: 38.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in January: 25.7°F
The month with the highest average low temperature is July (48.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure in January
Altamont, OR
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in January
Altamont, OR
- Average wind speed in January: 5.3mph
The windiest months (with the highest average wind speed) are March and April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity in January
Altamont, OR
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (49%).
Average rainfall in January
Altamont, OR
- Average rainfall in January: 1.77"
The wettest month (with the highest rainfall) is December (2.09").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in January
Altamont, OR
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is April (13.1 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in January
Altamont, OR
- Average snowfall in January: 8.78"
The month with the highest snowfall is December (10.63").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Altamont, OR
- Average snowfall days in January: 12.3 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Altamont, OR
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in January
Altamont, OR
- Average sunshine days in January: 14.9 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in January
Altamont, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Altamont, OR
- Average cloud cover in January: 45
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in January
Altamont, OR
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Altamont, Oregon, USA
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