January weather forecastAtherton, LA
January
Weather in January
January, like December, in Atherton, Louisiana, is a cool winter month, with an average temperature varying between 39.2°F (4°C) and 53.1°F (11.7°C).Temperature
With its high average temperature of 53.1°F (11.7°C) and a low of 39.2°F (4°C), January is regarded as the coldest month.Humidity
In January, the average relative humidity is 76%.Rainfall
In Atherton, Louisiana, in January, during 11.5 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. Throughout the year, there are 158.9 rainfall days, and 37.28" (947mm) of precipitation is accumulated.Snowfall
January through March are months with snowfall. The months with the most snowfall are January and February, with an average 0.16" (4mm) of accumulated snow.Daylight
In Atherton, the average length of the day in January is 10h and 17min.On the first day of the month, sunrise is at 7:06 am and sunset at 5:09 pm. On the last day of January, sunrise is at 7:00 am and sunset at 5:36 pm CST.
Sunshine
The average sunshine in January is 5.3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during January leads to these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Atherton, LA
- Average high temperature in January: 53.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.1°F).
- Average low temperature in January: 39.2°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in January
Atherton, LA
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in January
Atherton, LA
- Average wind speed in January: 8.8mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in January
Atherton, LA
- Average humidity in January: 76%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (67%).
Average rainfall in January
Atherton, LA
- Average rainfall in January: 3.46"
The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in January
Atherton, LA
- Average rainfall days in January: 11.5 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in January
Atherton, LA
- Average snowfall in January: 0.16"
The months with the highest snowfall are January and February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in January
Atherton, LA
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is January (0.8 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
Atherton, LA
- Average daylight in January: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 5h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Atherton, LA
- Average sunshine days in January: 17.9 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in January
Atherton, LA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in January
Atherton, LA
- Average cloud cover in January: 41
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in January
Atherton, LA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
