January weather forecast
Sulphur, LA

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Weather in January

January ushers in the new year with appreciable temperatures, from 44.2°F (6.8°C) to 59.2°F (15.1°C) in Sulphur, Louisiana. The chilly start of the year is characterized by a relative humidity of 78%, thus keeping the air slightly moist. The shortest days of the year present themselves as the daylight hours peak at 10.5, which subsequently reduces the sunshine hours. Additionally, the weather exhibits a mild wind behavior with gusts reaching up to 12.9mph (20.8km/h). Although snowfall is virtually non-existent at this time, residents can expect some rainy days throughout the month.

Temperature

January is the coldest month, with an average high-temperature of 59.2°F (15.1°C) and an average low-temperature of 44.2°F (6.8°C).

Humidity

The average relative humidity in January is 78%.

Rainfall

In January, in Sulphur, Louisiana, the rain falls for 10.6 days. Throughout January, 2.36" (60mm) of precipitation is accumulated. In Sulphur, during the entire year, the rain falls for 160.8 days and collects up to 28.54" (725mm) of precipitation.

Snowfall

The only month with snowfall is January. The month with the most snowfall in Sulphur is January, when snow falls for 0.2 days and typically aggregates up to 0.12" (3mm) of snow.

Daylight

In Sulphur, the average length of the day in January is 10h and 28min.
On the first day of the month, sunrise is at 7:09 am and sunset at 5:24 pm. On the last day of January, in Sulphur, sunrise is at 7:04 am and sunset at 5:49 pm CST.

Sunshine

In Sulphur, Louisiana, the average sunshine in January is 5.3h.

UV index

The average daily maximum UV index in January is 4. 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 daily high UV index of 4 in January translates into this advice:
Prioritize safety - Recommendations to avert sunburn are shared. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What part of the year is the coldest in Sulphur?

January, having an average high-temperature of 59.2°F (15.1°C) and an average low-temperature of 44.2°F (6.8°C), is the coldest month.

What are the temperatures in Sulphur in January?

Sulphur in January has an average high-temperature of 59.2°F (15.1°C) and an average low-temperature of 44.2°F (6.8°C).

What is the average humidity in January in Sulphur?

In Sulphur, the average relative humidity in January is 78%.

How many days does it rain in January in Sulphur?

In Sulphur, Louisiana, during January, the rain falls for 10.6 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When does it snow the most in Sulphur?

January is the month with the most snowfall in Sulphur. Snow falls for 0.2 days and accumulates 0.12" (3mm) of snow.

When does it start to snow in Sulphur?

January is the first month it typically snows. Throughout January, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow.

What is the average length of the day in January in Sulphur?

In Sulphur, the average day length in January is 10h and 28min.

When are sunrise and sunset in January in Sulphur?

On the first day of January, sunrise is at 7:09 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:49 pm CST.

How long on average sun shines in January in Sulphur?

In Sulphur, the average sunshine duration in January is 5.3h.

What is the UV index intensity in January in Sulphur?

In January, the average daily maximum UV index in Sulphur, Louisiana, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
61.7°F 16.5°C
59.2°F 15.1°C
63.5°F 17.5°C
Average low temperature
47.5°F 8.6°C
44.2°F 6.8°C
49.1°F 9.5°C
Average pressure
30.11" 765mmHg
30.16" 766mmHg
30.09" 764mmHg
Average wind speed
8mph 12.9km/h
8mph 12.9km/h
8.4mph 13.5km/h
Average max. wind speed
8.6mph 13.8km/h
8.5mph 13.7km/h
9mph 14.5km/h
Average wind speed gusts
13mph 20.9km/h
12.9mph 20.8km/h
13.4mph 21.6km/h
Average humidity
80%
78%
81%
Average rainfall
2.48" 63mm
2.36" 60mm
1.54" 39mm
Average rainfall days
13.1
10.6
11.8
Average snowfall
0" 0mm
0.12" 3mm
0" 0mm
Average snowfall days
0
0.2
0
Average daylight
10h 1min
10h 3min
11h 1min
Average sunshine
5h 0min
5h 2min
5h 3min
Average sunshine days
16.5
18.3
14.1
Average UV index
3
4
4
Average cloud cover
46%
40%
50%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Sulphur, LA

Average temperature in January - Sulphur, LA
  • Average high temperature in January: 59.2°F

The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in January: 44.2°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

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Average pressure in January
Sulphur, LA

Average pressure in January - Sulphur, 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).

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Average wind speed in January
Sulphur, LA

Average wind speed in January - Sulphur, LA
  • Average wind speed in January: 8mph

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in January
Sulphur, LA

Average humidity in January - Sulphur, LA
  • Average humidity in January: 78%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Sulphur, LA

Average rainfall in January - Sulphur, LA
  • Average rainfall in January: 2.36"

The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (1.54").

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Average rainfall days in January
Sulphur, LA

Average rainfall days in January - Sulphur, LA
  • Average rainfall days in January: 10.6 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is November (9.9 days).

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Average snowfall in January
Sulphur, LA

Average snowfall in January - Sulphur, LA
  • Average snowfall in January: 0.12"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in January
Sulphur, LA

Average snowfall days in January - Sulphur, LA
  • Average snowfall days in January: 0.2 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in January /
Average sunshine in January
Sulphur, LA

Average daylight in January / Average sunshine in January - Sulphur, LA
  • Average daylight in January: 10h and 3min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in January
Sulphur, LA

Average sunshine days in January - Sulphur, LA
  • Average sunshine days in January: 18.3 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is August (10.6 days).

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Average UV index in January
Sulphur, LA

Average UV index in January - Sulphur, LA
  • Average UV index in January: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in January
Sulphur, LA

Average cloud cover in January - Sulphur, LA
  • Average cloud cover in January: 40

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).

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Average visibility in January
Sulphur, LA

Average visibility in January - Sulphur, 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).

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Sulphur, Louisiana, USA

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