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
January, marked by an average high-temperature of 54.1°F (12.3°C) and a low-temperature of 38.5°F (3.6°C), is the coldest month.Humidity
In January, the average relative humidity is 79%.Rainfall
In Jamestown, in January, it is raining for 11.1 days, with typically 3.15" (80mm) of accumulated precipitation. In Jamestown, during the entire year, the rain falls for 158.9 days and collects up to 39.17" (995mm) of precipitation.Snowfall
January through March and December are months with snowfall. In January, it is snowing for 0.9 days. Throughout January, 0.31" (8mm) of snow is accumulated. In Jamestown, during the entire year, snow falls for 3.2 days and aggregates up to 0.94" (24mm) of snow.Daylight
In Jamestown, the average length of the day in January is 10h and 19min.On the first day of January, sunrise is at 7:14 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:44 pm CST.
Sunshine
In January, the average sunshine is 5.1h.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 average individuals.Note: The maximum UV index of 3 during January leads to these instructions:
Make use of precautions - It is urged to ward off sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
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 is the sunrise / sunset in January?
How many hours of sunshine does Jamestown have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Jamestown, LA
- Average high temperature in January: 54.1°F
The warmest months (with the highest average high temperature) are July and August (94.6°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in January: 38.5°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in January
Jamestown, LA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Jamestown, LA
- Average wind speed in January: 6.3mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in January
Jamestown, LA
- Average humidity in January: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (69%).
Average rainfall in January
Jamestown, LA
- Average rainfall in January: 3.15"
The wettest month (with the highest rainfall) is May (4.17").
The driest months (with the least rainfall) are July and September (2.52").
Average rainfall days in January
Jamestown, LA
- Average rainfall days in January: 11.1 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in January
Jamestown, LA
- Average snowfall in January: 0.31"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Jamestown, LA
- Average snowfall days in January: 0.9 days
The month with the highest number of snowfall days is February (1.1 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
Jamestown, LA
- Average daylight in January: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in January
Jamestown, LA
- Average sunshine days in January: 17 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in January
Jamestown, 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
Jamestown, LA
- Average cloud cover in January: 44
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in January
Jamestown, LA
- Average visibility in January: 5mi
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
Jamestown, Louisiana, USA
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