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
The onset of December brings a small shift in high-temperatures, falling from a pleasant 68.2°F (20.1°C) in November to a moderate 59.9°F (15.5°C). Hillister experiences a mean temperature of 44.4°F (6.9°C) during December nights.Humidity
The average relative humidity in December is 81%.Rainfall
In December, in Hillister, the rain falls for 13.5 days. Throughout December, 3.07" (78mm) of precipitation is accumulated. Throughout the year, there are 172.1 rainfall days, and 34.88" (886mm) of precipitation is accumulated.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows in Hillister. Throughout December, in the average 0.5 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 1.7 snowfall days, and 0.59" (15mm) of snow is accumulated.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:57 am and sunset at 5:15 pm. On the last day of December, in Hillister, Texas, sunrise is at 7:14 am and sunset at 5:26 pm CST.
Sunshine
The month with the least sunshine in Hillister is December, with an average of 4.8h of sunshine.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Hillister?
What is the average humidity in December in Hillister?
How much does it rain in Hillister in December?
When does it start snowing in Hillister?
What is the month with the shortest days in Hillister?
What is the average length of the day in December in Hillister?
What time are sunrise and sunset in December in Hillister?
What is the month with the least sunshine in Hillister?
How long on average sun shines in December in Hillister?
What is the month with the lowest UV index in Hillister?
What is the UV index intensity in December in Hillister?
Average temperature in December
Hillister, TX
- Average high temperature in December: 59.9°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 (57.9°F).
- Average low temperature in December: 44.4°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in December
Hillister, TX
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Hillister, TX
- Average wind speed in December: 5.6mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in December
Hillister, TX
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall in December
Hillister, TX
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in December
Hillister, TX
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is August (17.8 days).
The months with the least rainy days are January and November (11.4 days).
Average snowfall in December
Hillister, TX
- Average snowfall in December: 0.16"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Hillister, TX
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is January (0.7 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
Hillister, TX
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Hillister, TX
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in December
Hillister, TX
- Average UV index in December: 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 December
Hillister, TX
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are August and October (Cloud cover 36).
Average visibility in December
Hillister, TX
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Hillister, Texas, USA
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