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 is a still frosty 45.1°F (7.3°C) in January, hardly different from the 43.5°F (6.4°C) recorded in December. In Grand Ronde, the January nights cool down to an average low of 34°F (1.1°C).Humidity
The average relative humidity in January is 88%.Rainfall
In January, the rain falls for 16.8 days. Throughout January, 2.44" (62mm) of precipitation is accumulated. In Grand Ronde, during the entire year, the rain falls for 156 days and collects up to 15.94" (405mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In January, it is snowing for 1.2 days. Throughout January, 0.35" (9mm) of snow is accumulated. Throughout the year, there are 5.8 snowfall days, and 1.77" (45mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 14min.On the first day of the month, sunrise is at 7:52 am and sunset at 4:43 pm. On the last day of January, sunrise is at 7:35 am and sunset at 5:20 pm PST.
Sunshine
The average sunshine in January is 3.6h.UV index
The months with the lowest UV index in Grand Ronde 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 2 in January leads to these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grand Ronde in January?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Grand Ronde have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Grand Ronde have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Grand Ronde, OR
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in January: 34°F
The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in January
Grand Ronde, OR
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).
Average wind speed in January
Grand Ronde, OR
- Average wind speed in January: 4.7mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Grand Ronde, OR
- Average humidity in January: 88%
The months with the highest relative humidity are February and December (89%).
The month with the lowest relative humidity is August (71%).
Average rainfall in January
Grand Ronde, OR
- Average rainfall in January: 2.44"
The wettest month (with the highest rainfall) is December (2.56").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Grand Ronde, OR
- Average rainfall days in January: 16.8 days
The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in January
Grand Ronde, OR
- Average snowfall in January: 0.35"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Grand Ronde, OR
- Average snowfall days in January: 1.2 days
The month with the highest number of snowfall days is February (2.3 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
Grand Ronde, 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: 3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in January
Grand Ronde, OR
- Average sunshine days in January: 11.3 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in January
Grand Ronde, OR
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Grand Ronde, OR
- Average cloud cover in January: 65
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Grand Ronde, OR
- Average visibility in January: 4mi
The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).
Grand Ronde, Oregon, USA
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