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 shift into January uncovers an average high-temperature of a still chilly 44.6°F (7°C), subtly different from the previous month. In Prospect, the expected average low-temperature for January is a subzero cold 30.6°F (-0.8°C).Humidity
January is the most humid month, with an average relative humidity of 84%.Rainfall
In Prospect, Oregon, in January, it is raining for 15 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, there are 140 rainfall days, and 23.78" (604mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Prospect, in January, snow falls for 4.3 days, with typically accumulated 5.51" (140mm) of snow. Throughout the year, in Prospect, there are 25 snowfall days, and 21.77" (553mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 28min.On the first day of the month, sunrise is at 7:40 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:25 am and sunset at 5:21 pm PST.
Sunshine
In January, the average sunshine is 5.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during January leads to these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Prospect have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index in Prospect?
What is the UV index intensity in January?
Average temperature in January
Prospect, OR
- Average high temperature in January: 44.6°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in January: 30.6°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).
Average pressure in January
Prospect, OR
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in January
Prospect, OR
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in January
Prospect, OR
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (60%).
Average rainfall in January
Prospect, OR
- Average rainfall in January: 3.7"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in January
Prospect, OR
- Average rainfall days in January: 15 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is July (3.8 days).
Average snowfall in January
Prospect, OR
- Average snowfall in January: 5.51"
The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Prospect, OR
- Average snowfall days in January: 4.3 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Prospect, OR
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in January
Prospect, OR
- Average sunshine days in January: 13.8 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (10 days).
Average UV index in January
Prospect, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Prospect, OR
- Average cloud cover in January: 47
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in January
Prospect, OR
- Average visibility in January: 5mi
The months with the highest visibility are July, August and September (6mi).
The month with the lowest visibility is December (4mi).
Prospect, Oregon, USA
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