January weather forecastGranite, OR
January
Weather in January
January, like December, is another subzero cold winter month in Granite, Oregon, with an average temperature varying between 31.8°F (-0.1°C) and 19.4°F (-7°C).Temperature
Granite registers an average high-temperature of a still freezing cold 31.8°F (-0.1°C) at the commencement of January, closely related to the preceding month. Granite's average low-temperature is measured at a still freezing cold 19.4°F (-7°C) during January.Humidity
January is the most humid month, with an average relative humidity of 88%.Rainfall
In Granite, in January, during 7.9 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 113.5 rainfall days, and 12.56" (319mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 14.3 days. Throughout January, 9.76" (248mm) of snow is accumulated. Throughout the year, there are 65.1 snowfall days, and 38.9" (988mm) of snow is accumulated.Daylight
In Granite, the average length of the day in January is 9h and 16min.On the first day of the month, sunrise is at 7:31 am and sunset at 4:23 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:00 pm PST.
Sunshine
January has the least sunshine of the year, with an average of 4.8h of sunshine.UV index
The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 during January translates into the following guidance:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To cut down UV radiation exposure by about half, sport a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Granite, OR
- Average high temperature in January: 31.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (30.7°F).
- Average low temperature in January: 19.4°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure in January
Granite, OR
- Average pressure in January: 30.22"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in January
Granite, OR
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (5.4mph).
Average humidity in January
Granite, OR
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (40%).
Average rainfall in January
Granite, OR
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in January
Granite, OR
- Average rainfall days in January: 7.9 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (4.4 days).
Average snowfall in January
Granite, OR
- Average snowfall in January: 9.76"
The month with the highest snowfall is December (10.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Granite, OR
- Average snowfall days in January: 14.3 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Granite, OR
- Average daylight in January: 9h and 18min
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 48min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in January
Granite, OR
- Average sunshine days in January: 14.8 days
The month with the most sunshine days is July (22.7 days).
The months with the least sunshine days are February and March (11.3 days).
Average UV index in January
Granite, OR
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Granite, OR
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in January
Granite, OR
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
