Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Impact's lowest temperatures tend to occur in January and December, with an average high-temperature of 56.3°F (13.5°C).Humidity
In Impact, the average relative humidity in December is 58%.Rainfall
In Impact, in December, it is raining for 5.4 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 94.5 rainfall days, and 15.79" (401mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Impact, in December, during 1.2 snowfall days, 0.28" (7mm) of snow is typically accumulated. Throughout the year, there are 4.7 snowfall days, and 2.32" (59mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 7:23 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:44 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 6.4h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. 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. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What is the temperature in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine in Impact?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Impact, TX
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The months with the lowest average high temperature are January and December (56.3°F).
- Average low temperature in December: 39.2°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in December
Impact, TX
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Impact, TX
- Average wind speed in December: 10.9mph
The windiest month (with the highest average wind speed) is April (13.7mph).
The calmest month (with the lowest average wind speed) is September (9.5mph).
Average humidity in December
Impact, TX
- Average humidity in December: 58%
The month with the highest relative humidity is May (59%).
The month with the lowest relative humidity is August (47%).
Average rainfall in December
Impact, TX
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is September (2.13").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in December
Impact, TX
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (11.7 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in December
Impact, TX
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Impact, TX
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Impact, TX
- Average daylight in December: 10h and 1min
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 6min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Impact, TX
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is January (25.7 days).
The month with the least sunshine days is May (16.3 days).
Average UV index in December
Impact, TX
- Average UV index in December: 3
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 December
Impact, TX
- Average cloud cover in December: 27
The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Impact, TX
- Average visibility in December: 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).
Impact, Texas, USA
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