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's arrival registers an average high-temperature of a still cold 34.7°F (1.5°C), closely aligning with the temperature of the previous month. An average low-temperature of 22.1°F (-5.5°C) is expected during January.Humidity
The most humid month is January, with an average relative humidity of 83%.Rainfall
In Harper, in January, it is raining for 5.2 days, with typically 0.35" (9mm) of accumulated precipitation. Throughout the year, there are 57 rainfall days, and 2.99" (76mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In January, it is snowing for 4.2 days. Throughout January, 1.06" (27mm) of snow is accumulated. In Harper, during the entire year, snow falls for 17.3 days and aggregates up to 4.21" (107mm) of snow.Daylight
In January, the average length of the day in Harper is 9h and 22min.On the first day of the month, sunrise is at 8:24 am and sunset at 5:23 pm. On the last day of January, sunrise is at 8:08 am and sunset at 5:59 pm MST.
Sunshine
The average sunshine in January is 5.3h.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 health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 2 during January translates into the following guidance:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Harper?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Harper, OR
- Average high temperature in January: 34.7°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (34.3°F).
- Average low temperature in January: 22.1°F
The month with the highest average low temperature is August (63.5°F).
The coldest months (with the lowest average low temperature) are January and December (22.1°F).
Average pressure in January
Harper, OR
- Average pressure in January: 30.24"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in January
Harper, OR
- Average wind speed in January: 3.9mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in January
Harper, OR
- Average humidity in January: 83%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (28%).
Average rainfall in January
Harper, OR
- Average rainfall in January: 0.35"
The wettest months (with the highest rainfall) are March and May (0.39").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in January
Harper, OR
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in January
Harper, OR
- Average snowfall in January: 1.06"
The month with the highest snowfall is December (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Harper, OR
- Average snowfall days in January: 4.2 days
The month with the highest number of snowfall days is December (6.1 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
Harper, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- 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 December (Average sunshine: 5h and 12min).
Average sunshine days in January
Harper, OR
- Average sunshine days in January: 22.2 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (20.1 days).
Average UV index in January
Harper, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Harper, OR
- Average cloud cover in January: 43
The months with the most cloud cover are January and December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in January
Harper, OR
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Harper, Oregon, USA
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