January weather forecastWestlake, TX
January
Weather in January
January, like December, in Westlake, Texas, is another fresh winter month, with an average temperature ranging between min 38.8°F (3.8°C) and max 54.5°F (12.5°C).Temperature
January is the month when Westlake sees the lowest average temperatures, with a high of 54.5°F (12.5°C) and a low of 38.8°F (3.8°C).Humidity
In January, the average relative humidity in Westlake is 63%.Rainfall
January is the month with the least rainfall. Rain falls for 5.6 days and accumulates 1.1" (28mm) of precipitation.Snowfall
January through March and December are months with snowfall. In Westlake, during January, snow falls for 0.4 days and regularly aggregates up to 0.04" (1mm) of snow. In Westlake, during the entire year, snow falls for 2.1 days and aggregates up to 0.63" (16mm) of snow.Daylight
In January, the average length of the day is 10h and 16min.On the first day of January, sunrise is at 7:31 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:59 pm CST.
Sunshine
In January, the average sunshine is 6h.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 3 in January transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Westlake, TX
- Average high temperature in January: 54.5°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (54.5°F).
- Average low temperature in January: 38.8°F
The months with the highest average low temperature are July and August (76.6°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in January
Westlake, 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 (29.9"Hg).
Average wind speed in January
Westlake, TX
- Average wind speed in January: 9.2mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in January
Westlake, TX
- Average humidity in January: 63%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (54%).
Average rainfall in January
Westlake, TX
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in January
Westlake, TX
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in January
Westlake, TX
- Average snowfall in January: 0.04"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Westlake, TX
- Average snowfall days in January: 0.4 days
The month with the highest number of snowfall days is February (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
Westlake, TX
- 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: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Westlake, TX
- Average sunshine days in January: 24.6 days
The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in January
Westlake, TX
- Average UV index in January: 3
The months with the highest UV index are May, 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
Westlake, TX
- Average cloud cover in January: 30
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in January
Westlake, 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).





