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's onset brings a negligible change in high-temperatures, falling from an agreeable 69.8°F (21°C) in November to a refreshing 61.9°F (16.6°C). During December, the nighttime temperature averages to a frosty 47.3°F (8.5°C).Humidity
In Hallettsville, the average relative humidity in December is 76%.Rainfall
In December, the rain falls for 13.3 days. Throughout December, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 166.8 rainfall days, and 28.7" (729mm) of precipitation is accumulated.Snowfall
January and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Hallettsville, during the entire year, snow falls for 0.4 days and aggregates up to 0.24" (6mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 5:28 pm. On the last day of December, in Hallettsville, sunrise is at 7:22 am and sunset at 5:39 pm CST.
Sunshine
With an average of 4.7h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 3 transforms into these recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Hallettsville?
What is the average humidity in December?
How much does it rain in December?
When does it start snowing?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Hallettsville, TX
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (61°F).
- Average low temperature in December: 47.3°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in December
Hallettsville, 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 (29.91"Hg).
Average wind speed in December
Hallettsville, TX
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is September (6mph).
Average humidity in December
Hallettsville, TX
- Average humidity in December: 76%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Hallettsville, TX
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Hallettsville, TX
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is January (11.2 days).
Average snowfall in December
Hallettsville, TX
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Hallettsville, TX
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Hallettsville, TX
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Hallettsville, TX
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Hallettsville, TX
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Hallettsville, TX
- Average cloud cover in December: 49
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Hallettsville, TX
- Average visibility in December: 6mi
The months with the highest visibility are January, February, August, September, October, November and December (6mi).
The months with the lowest visibility are March, April, May, June and July (5mi).
Hallettsville, Texas, USA
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