January weather forecastPlano, TX
January
Weather in January
Suffused in the chilliness of winter, January in Plano, Texas delivers fluctuating temperatures which dance from 38.7°F (3.7°C) to 54°F (12.2°C). Constantly at the mercy of cold fronts sweeping in from the north, variations in temperatures are frequent. However, the city receives a significant amount of cloud cover, with humidity factors ensuring foggy mornings. The start of the year is often ushered in with less rainfall contributing to dry, crisp weather. While snow is a rarity, winter may nod with an occasional, thin blanket which dissolves swiftly.Temperature
January is the month when Plano sees the lowest average temperatures, with a high of 54°F (12.2°C) and a low of 38.7°F (3.7°C).Humidity
In Plano, the average relative humidity in January is 66%.Rainfall
January is the month with the least rainfall. Rain falls for 7.1 days and accumulates 1.85" (47mm) of precipitation.Snowfall
January, February, November and December are months with snowfall. In Plano, Texas, in January, during 0.6 snowfall days, 0.2" (5mm) of snow is typically accumulated. Throughout the year, there are 2.9 snowfall days, and 1.14" (29mm) of snow is accumulated.Daylight
The average length of the day in January is 10h and 16min.On the first day of the month, sunrise is at 7:29 am and sunset at 5:30 pm. On the last day of January, sunrise is at 7:22 am and sunset at 5:57 pm CST.
Sunshine
The average sunshine in January is 5.8h.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 3 suggests this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Plano, TX
- Average high temperature in January: 54°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in January: 38.7°F
The month with the highest average low temperature is July (76.1°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in January
Plano, 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 (29.91"Hg).
Average wind speed in January
Plano, TX
- Average wind speed in January: 9.1mph
The windiest months (with the highest average wind speed) are March and April (9.9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in January
Plano, TX
- Average humidity in January: 66%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).
Average rainfall in January
Plano, TX
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in January
Plano, TX
- Average rainfall days in January: 7.1 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in January
Plano, TX
- Average snowfall in January: 0.2"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in January
Plano, TX
- Average snowfall days in January: 0.6 days
The month with the highest number of snowfall days is February (1.3 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
Plano, 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: 5h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in January
Plano, TX
- Average sunshine days in January: 22.5 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is April (13.9 days).
Average UV index in January
Plano, TX
- 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
Plano, TX
- Average cloud cover in January: 31
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in January
Plano, 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).
