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
In December, the meteorological conditions change slightly, with the average high-temperature moving from an agreeable 68.9°F (20.5°C) in November to a comfortable 61.7°F (16.5°C). December nights are marked by an average temperature drop to a frosty 46.8°F (8.2°C).Humidity
The average relative humidity in December is 79%.Rainfall
In Porter Heights, Texas, during December, the rain falls for 9.5 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 148.3 rainfall days, and 20.04" (509mm) of precipitation is accumulated.Snowfall
The only month with snowfall in Porter Heights, Texas, is December. December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.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 7:00 am and sunset at 5:20 pm. On the last day of December, in Porter Heights, sunrise is at 7:17 am and sunset at 5:31 pm CST.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year in Porter Heights.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 3 transforms into these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month?
When does it start to snow?
What is the month with the shortest days in Porter Heights?
How many hours of daylight does Porter Heights have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index in Porter Heights?
How high is the UV index in December?
Average temperature in December
Porter Heights, TX
- Average high temperature in December: 61.7°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in December: 46.8°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).
Average pressure in December
Porter Heights, 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
Porter Heights, TX
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is September (5.2mph).
Average humidity in December
Porter Heights, TX
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Porter Heights, TX
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is November (0.98").
Average rainfall days in December
Porter Heights, TX
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is September (17.2 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Porter Heights, TX
- Average snowfall in December: 0.04"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Porter Heights, TX
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Porter Heights, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Porter Heights, TX
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is September (10.3 days).
Average UV index in December
Porter Heights, 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
Porter Heights, TX
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Porter Heights, TX
- Average visibility in December: 6mi
The months with the highest visibility are January, June, August, September, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May and July (5mi).
Porter Heights, Texas, USA
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