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
As November makes way for December, Schertz's average high-temperature eases from a pleasant 69.4°F (20.8°C) to a refreshing 61.9°F (16.6°C). Schertz's temperature in December lowers to a consistent average of 47.1°F (8.4°C) during the nights.Humidity
In December, the average relative humidity is 70%.Rainfall
In December, the rain falls for 10.3 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. Throughout the year, there are 138.4 rainfall days, and 19.57" (497mm) of precipitation is accumulated.Snowfall
Months with snowfall are January, February and December. December is the first month it typically snows in Schertz. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Schertz, during the entire year, snow falls for 0.9 days and aggregates up to 0.2" (5mm) 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 7:10 am and sunset at 5:33 pm. On the last day of December, in Schertz, sunrise is at 7:27 am and sunset at 5:45 pm CST.
Sunshine
With an average of 5.2h 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 estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 in December translates into these instructions:
Ensure safety - Sun damage prevention is strongly urged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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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?
When does it start snowing?
What is the month with the shortest days?
What is the average length of the day in December in Schertz?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Schertz have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Schertz, TX
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in December: 47.1°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in December
Schertz, 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 (29.89"Hg).
Average wind speed in December
Schertz, TX
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are March and May (8.7mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).
Average humidity in December
Schertz, TX
- Average humidity in December: 70%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Schertz, TX
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in December
Schertz, TX
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (15.9 days).
The months with the least rainy days are January and November (8.8 days).
Average snowfall in December
Schertz, TX
- Average snowfall in December: 0.04"
The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Schertz, TX
- Average snowfall days in December: 0.3 days
The months with the highest number of snowfall days are January, February and December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Schertz, 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: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Schertz, TX
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in December
Schertz, 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
Schertz, TX
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Schertz, 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).
Schertz, Texas, USA
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