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 onset of January notes an average high-temperature of a still chilly 48.6°F (9.2°C), subtly shifted from December's 45.7°F (7.6°C). An average low-temperature of 35.2°F (1.8°C) is anticipated throughout the nights during January.Humidity
The months with the highest humidity are January through March and December, with an average relative humidity of 87%.Rainfall
In Harrisburg, Oregon, during January, the rain falls for 17.3 days and regularly aggregates up to 3.9" (99mm) of precipitation. Throughout the year, there are 161.8 rainfall days, and 28.82" (732mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Harrisburg. In Harrisburg, in January, during 0.8 snowfall days, 0.39" (10mm) of snow is typically accumulated. Throughout the year, there are 4.1 snowfall days, and 2.87" (73mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 19min.On the first day of January in Harrisburg, sunrise is at 7:48 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:20 pm PST.
Sunshine
In Harrisburg, the average sunshine in January is 4.3h.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 minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Harrisburg have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Harrisburg have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January in Harrisburg?
Average temperature in January
Harrisburg, OR
- Average high temperature in January: 48.6°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 (45.7°F).
- Average low temperature in January: 35.2°F
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in January
Harrisburg, 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
Harrisburg, OR
- Average wind speed in January: 4.7mph
The windiest month (with the highest average wind speed) is March (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in January
Harrisburg, OR
- Average humidity in January: 87%
The months with the highest relative humidity are January, February, March and December (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall in January
Harrisburg, OR
- Average rainfall in January: 3.9"
The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in January
Harrisburg, OR
- Average rainfall days in January: 17.3 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in January
Harrisburg, OR
- Average snowfall in January: 0.39"
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
Harrisburg, OR
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Harrisburg, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- 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 0min).
Average sunshine days in January
Harrisburg, OR
- Average sunshine days in January: 12.2 days
The month with the most sunshine days is July (26.2 days).
The months with the least sunshine days are February and March (9.4 days).
Average UV index in January
Harrisburg, 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
Harrisburg, OR
- Average cloud cover in January: 56
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in January
Harrisburg, OR
- Average visibility in January: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Harrisburg, Oregon, USA
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