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 advent of January brings an average high-temperature of a still frosty 46°F (7.8°C), almost identical to the preceding month. Throughout the nights in January, an average low-temperature of 35.1°F (1.7°C) is noted.Humidity
The average relative humidity in January is 86%.Rainfall
In Lafayette, Oregon, in January, during 18.2 rainfall days, 4.41" (112mm) of precipitation is typically accumulated. In Lafayette, during the entire year, the rain falls for 172.2 days and collects up to 28.9" (734mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Lafayette, during January, snow falls for 1 days and regularly aggregates up to 0.35" (9mm) of snow. In Lafayette, Oregon, during the entire year, snow falls for 5.3 days and aggregates up to 3.19" (81mm) of snow.Daylight
In Lafayette, the average length of the day in January is 9h and 13min.On the first day of the month, sunrise is at 7:51 am and sunset at 4:40 pm. On the last day of January, sunrise is at 7:33 am and sunset at 5:17 pm PST.
Sunshine
In January, the average sunshine is 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 of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How long on average sun shines in January in Lafayette?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Lafayette, OR
- Average high temperature in January: 46°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.1°F).
- Average low temperature in January: 35.1°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure in January
Lafayette, OR
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in January
Lafayette, OR
- Average wind speed in January: 5.1mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
Lafayette, OR
- Average humidity in January: 86%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (67%).
Average rainfall in January
Lafayette, OR
- Average rainfall in January: 4.41"
The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in January
Lafayette, OR
- Average rainfall days in January: 18.2 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in January
Lafayette, OR
- Average snowfall in January: 0.35"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Lafayette, OR
- Average snowfall days in January: 1 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Lafayette, 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: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in January
Lafayette, OR
- Average sunshine days in January: 10.6 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in January
Lafayette, 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, November and December (UV index 2).
Average cloud cover in January
Lafayette, OR
- Average cloud cover in January: 60
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in January
Lafayette, OR
- Average visibility in January: 4mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
Lafayette, Oregon, USA
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