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 reveals an average high-temperature of a chilly 44.2°F (6.8°C), closely mirroring December's climate. During the month of January, the temperature in Vernonia generally drops to a low average of 33.3°F (0.7°C).Humidity
In January, the average relative humidity is 88%.Rainfall
January is the month with the most rainfall. Rain falls for 19.3 days and accumulates 5.79" (147mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Vernonia. In Vernonia, during January, snow falls for 2.1 days and regularly aggregates up to 3.35" (85mm) of snow. Throughout the year, there are 11.8 snowfall days, and 10.24" (260mm) of snow is accumulated.Daylight
In January, the average length of the day in Vernonia is 9h and 9min.On the first day of the month, sunrise is at 7:54 am and sunset at 4:38 pm. On the last day of January, in Vernonia, sunrise is at 7:35 am and sunset at 5:16 pm PST.
Sunshine
In January, the average sunshine is 3.4h.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 hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
How cold is January in Vernonia?
What is the average humidity in January in Vernonia?
What is the rainiest month in Vernonia?
How much does it rain in Vernonia in January?
How much does it snow in Vernonia in January?
What is the average length of the day in January in Vernonia?
When is the sunrise / sunset in January in Vernonia?
How many hours of sunshine does Vernonia have in January?
What is the month with the lowest UV index in Vernonia?
What is the UV index intensity in January in Vernonia?
Average temperature in January
Vernonia, OR
- Average high temperature in January: 44.2°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (42.1°F).
- Average low temperature in January: 33.3°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in January
Vernonia, OR
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.02"Hg).
Average wind speed in January
Vernonia, OR
- Average wind speed in January: 4.8mph
The windiest months (with the highest average wind speed) are January, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in January
Vernonia, OR
- Average humidity in January: 88%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Vernonia, OR
- Average rainfall in January: 5.79"
The wettest month (with the highest rainfall) is January (5.79").
The driest months (with the least rainfall) are July and August (0.51").
Average rainfall days in January
Vernonia, OR
- Average rainfall days in January: 19.3 days
The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is July (6 days).
Average snowfall in January
Vernonia, OR
- Average snowfall in January: 3.35"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Vernonia, OR
- Average snowfall days in January: 2.1 days
The month with the highest number of snowfall days is February (4.4 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
Vernonia, OR
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in January
Vernonia, OR
- Average sunshine days in January: 10.1 days
The month with the most sunshine days is July (22.1 days).
The months with the least sunshine days are February and March (7.6 days).
Average UV index in January
Vernonia, OR
- Average UV index in January: 2
The month with the highest UV index is 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
Vernonia, OR
- Average cloud cover in January: 65
The months with the most cloud cover are February and March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Vernonia, OR
- Average visibility in January: 4mi
The months with the highest visibility are July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).
Vernonia, Oregon, USA
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