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 average high-temperature for January is a still cold 34.7°F (1.5°C), closely aligning with the temperature of the preceding month. The nighttime temperature in Harper dips to a freezing cold 22.1°F (-5.5°C) on average during January.Humidity
January is the most humid month, with an average relative humidity of 83%.Rainfall
In January, in Harper, the rain falls for 5.2 days. Throughout January, 0.35" (9mm) of precipitation is accumulated. 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 Harper, in January, during 4.2 snowfall days, 1.06" (27mm) of snow is typically 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 is 9h and 22min.On the first day of January, sunrise is at 8:24 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:59 pm MST.
Sunshine
In January, the average sunshine is 5.3h.UV index
The months with the lowest UV index in Harper are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 during January leads to these advisories:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is it in Harper in January?
What is the most humid month in Harper?
What is the average humidity in January in Harper?
How much does it rain in Harper in January?
How much does it snow in Harper in January?
What is the average length of the day in January in Harper?
When are sunrise and sunset in January in Harper?
How long on average sun shines in January in Harper?
What is the month with the lowest UV index in Harper?
What is the UV index reading in January in Harper?
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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