December weather forecastSaint Jo, TX
December
Weather in December
December, the first month of the winter in Saint Jo, is also a fresh month, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 53.1°F (11.7°C).Temperature
Onset of December comes with a temperature decline, the average high falling from a refreshing 63°F (17.2°C) in November to a cool 53.1°F (11.7°C). During December, Saint Jo experiences an average low-temperature of 37.8°F (3.2°C) at night.Humidity
The average relative humidity in December in Saint Jo, Texas, is 68%.Rainfall
In Saint Jo, during December, the rain falls for 7.1 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, there are 128.7 rainfall days, and 26.1" (663mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Saint Jo, Texas. In Saint Jo, in December, during 1 snowfall days, 0.51" (13mm) of snow is typically accumulated. Throughout the year, there are 4.8 snowfall days, and 2.17" (55mm) of snow is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year in Saint Jo.On the first day of the month, sunrise is at 7:17 am and sunset at 5:21 pm. On the last day of December, in Saint Jo, sunrise is at 7:34 am and sunset at 5:32 pm CST.
Sunshine
With an average of 5.9h of sunshine, December has the least sunshine of the year in Saint Jo.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint Jo, TX
- Average high temperature in December: 53.1°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in December: 37.8°F
The months with the highest average low temperature are July and August (73.9°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in December
Saint Jo, 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 (29.89"Hg).
Average wind speed in December
Saint Jo, TX
- Average wind speed in December: 8.9mph
The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity in December
Saint Jo, TX
- Average humidity in December: 68%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (57%).
Average rainfall in December
Saint Jo, TX
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Saint Jo, TX
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in December
Saint Jo, TX
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Saint Jo, TX
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is February (1.9 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
Saint Jo, TX
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Saint Jo, TX
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in December
Saint Jo, TX
- Average UV index in December: 2
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 2).
Average cloud cover in December
Saint Jo, TX
- Average cloud cover in December: 34
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Saint Jo, 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).
