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 commences with an average high-temperature of a still icy 39.7°F (4.3°C), showing little deviation from December's 37.9°F (3.3°C). Heppner experiences a consistent average temperature of 28.2°F (-2.1°C) throughout the nights in January.Humidity
The most humid month is January, with an average relative humidity of 79%.Rainfall
In Heppner, in January, it is raining for 14 days, with typically 1.54" (39mm) of accumulated precipitation. In Heppner, during the entire year, the rain falls for 131.9 days and collects up to 13.54" (344mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Heppner, in January, during 6.1 snowfall days, 3.78" (96mm) of snow is typically accumulated. In Heppner, during the entire year, snow falls for 31.3 days and aggregates up to 18.54" (471mm) of snow.Daylight
In Heppner, the average length of the day in January is 9h and 13min.On the first day of January, sunrise is at 7:37 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:03 pm PST.
Sunshine
January and February, with an average of 5.3h of sunshine, are months with the least sunshine.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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 during January translates into the following guidance:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Heppner during 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 are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Heppner, OR
- Average high temperature in January: 39.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in January: 28.2°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in January
Heppner, OR
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in January
Heppner, OR
- Average wind speed in January: 7.8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity in January
Heppner, OR
- Average humidity in January: 79%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in January
Heppner, OR
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Heppner, OR
- Average rainfall days in January: 14 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in January
Heppner, OR
- Average snowfall in January: 3.78"
The month with the highest snowfall is February (6.61").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Heppner, OR
- Average snowfall days in January: 6.1 days
The month with the highest number of snowfall days is December (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Heppner, 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: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 5h and 18min).
Average sunshine days in January
Heppner, OR
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (9.5 days).
Average UV index in January
Heppner, 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
Heppner, OR
- Average cloud cover in January: 46
The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in January
Heppner, OR
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Heppner, Oregon, USA
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