January weather forecastPort Arthur, TX
January
Weather in January
January, the same as December, in Port Arthur, Texas, is a moderate winter month, with an average temperature varying between 59.5°F (15.3°C) and 46.9°F (8.3°C).Temperature
January is the coldest month, with an average high-temperature of 59.5°F (15.3°C) and an average low-temperature of 46.9°F (8.3°C).Humidity
In Port Arthur, the average relative humidity in January is 77%.Rainfall
In Port Arthur, during January, the rain falls for 7.8 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, there are 132.6 rainfall days, and 12.09" (307mm) of precipitation is accumulated.Snowfall
In Port Arthur, Texas, snow does not fall in January through November.Daylight
In Port Arthur, the average length of the day in January is 10h and 29min.On the first day of January in Port Arthur, sunrise is at 7:11 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:51 pm CST.
Sunshine
In Port Arthur, the average sunshine in January is 5.4h.UV index
In January, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In January, a daily UV index of 4 turns into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Port Arthur, TX
- Average high temperature in January: 59.5°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in January: 46.9°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in January
Port Arthur, TX
- 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
Port Arthur, TX
- Average wind speed in January: 8.9mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in January
Port Arthur, TX
- Average humidity in January: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Port Arthur, TX
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is April (0.43").
Average rainfall days in January
Port Arthur, TX
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is August (17.9 days).
The months with the least rainy days are January and November (7.8 days).
Average snowfall in January
Port Arthur, TX
- Average snowfall in January: 0"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Port Arthur, TX
- Average snowfall days in January: 0.3 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Port Arthur, TX
- Average daylight in January: 10h and 30min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in January: 5h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in January
Port Arthur, TX
- Average sunshine days in January: 21.3 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in January
Port Arthur, TX
- 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).
Average cloud cover in January
Port Arthur, TX
- 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).
Average visibility in January
Port Arthur, TX
- 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).
