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
During the coldest month, January, temperatures average a high of 53.6°F (12°C) and a low of 38.1°F (3.4°C).Humidity
In January, the average relative humidity is 70%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.9 days and typically collects 1.77" (45mm) of precipitation.Snowfall
Months with snowfall are January through March and November. January is the first month it typically snows. Throughout January, in the average 0.7 snowfall days, it receives 0.2" (5mm) of snow. In Greenville, during the entire year, snow falls for 2.9 days and aggregates up to 1.3" (33mm) of snow.Daylight
The average length of the day in January is 10h and 16min.On the first day of January, sunrise is at 7:27 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:55 pm CST.
Sunshine
In January, the average sunshine is 5.6h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 3 during January translates into the following guidance:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What are the temperatures in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
When does it start to snow?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Greenville have in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Greenville, TX
- Average high temperature in January: 53.6°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in January: 38.1°F
The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in January
Greenville, 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
Greenville, TX
- Average wind speed in January: 8.7mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is September (6.4mph).
Average humidity in January
Greenville, TX
- Average humidity in January: 70%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (62%).
Average rainfall in January
Greenville, TX
- Average rainfall in January: 1.77"
The wettest month (with the highest rainfall) is October (4.29").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in January
Greenville, TX
- Average rainfall days in January: 8.9 days
The months with the highest number of rainy days are May and September (15.8 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in January
Greenville, TX
- Average snowfall in January: 0.2"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in January
Greenville, TX
- Average snowfall days in January: 0.7 days
The month with the highest number of snowfall days is February (1.5 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
Greenville, TX
- Average daylight in January: 10h and 2min
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 4min
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 24min).
Average sunshine days in January
Greenville, TX
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (13 days).
Average UV index in January
Greenville, 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
Greenville, TX
- Average cloud cover in January: 35
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in January
Greenville, 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).
Greenville, Texas, USA
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