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
December comes with a drop in the average high-temperature, falling from November's enjoyable 64.6°F (18.1°C) to a moderate 55.6°F (13.1°C). In the month of December, the temperature generally rests at an average low of 41.5°F (5.3°C).Humidity
The average relative humidity in December is 67%.Rainfall
In Grapevine, in December, during 6 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, there are 97.8 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
April through December are months without snowfall.Daylight
The month with the shortest days in Grapevine is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:21 pm. On the last day of December, in Grapevine, Texas, sunrise is at 7:30 am and sunset at 5:32 pm CST.
Sunshine
The month with the least sunshine in Grapevine is December, with an average of 5.7h of sunshine.UV index
The months with the lowest UV index in Grapevine are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 3 in December transforms into this advice:
Heed the precautions - It is counselled to guard against solar damage. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the average December temperature in Grapevine?
What is the average humidity in December in Grapevine?
How much does it rain in Grapevine in December?
When it does not snow in Grapevine?
Does it snow in Grapevine in December?
What is the month with the shortest days in Grapevine?
What is the average length of the day in December in Grapevine?
When are sunrise and sunset in December in Grapevine?
What is the month with the least sunshine in Grapevine?
How many hours of sunshine does Grapevine have in December?
What is the month with the lowest UV index in Grapevine?
What is the UV index reading in December in Grapevine?
Average temperature in December
Grapevine, TX
- Average high temperature in December: 55.6°F
The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (54.5°F).
- Average low temperature in December: 41.5°F
The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in December
Grapevine, TX
- Average pressure in December: 30.13"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 December
Grapevine, TX
- Average wind speed in December: 8.6mph
The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.7mph).
Average humidity in December
Grapevine, TX
- Average humidity in December: 67%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (54%).
Average rainfall in December
Grapevine, TX
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in December
Grapevine, TX
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is September (10.5 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Grapevine, TX
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Grapevine, TX
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.9 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
Grapevine, TX
- Average daylight in December: 10h and 0min
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 December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Grapevine, TX
- Average sunshine days in December: 23.4 days
The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is September (16.8 days).
Average UV index in December
Grapevine, TX
- Average UV index in December: 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 December
Grapevine, TX
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Grapevine, 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).
Grapevine, Texas, USA
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