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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Jefferson, Texas, is a cool winter month, with an average temperature fluctuating between 54°F (12.2°C) and 37.9°F (3.3°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 54°F (12.2°C) and a low of 37.9°F (3.3°C). Weather in January »
Weather in February
February, the last month of the winter in Jefferson, is a mild month, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 42.3°F (5.7°C). As Jefferson transitions from January to February, the average high-temperatures adjust to a moderate 57.7°F (14.3°C), nearly the same as the previous 54°F (12.2°C). Weather in February »
Weather in March
March, the first month of the spring in Jefferson, is a comfortable month, with an average temperature fluctuating between 66.7°F (19.3°C) and 48.6°F (9.2°C). A rise in the average high-temperature is observed during March, moving from a moderate 57.7°F (14.3°C) in February to an enjoyable 66.7°F (19.3°C). Weather in March »
Weather in April
April is a moderately hot spring month in Jefferson, Texas, with an average temperature fluctuating between 75.7°F (24.3°C) and 54.3°F (12.4°C). The average high-temperature increases in April, moving from a refreshing 66.7°F (19.3°C) in March to a warm 75.7°F (24.3°C). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Jefferson, Texas, with an average temperature ranging between min 63.1°F (17.3°C) and max 84.2°F (29°C). With the start of May, the average high-temperature marginally shifts from April's 75.7°F (24.3°C) to a still moderately hot 84.2°F (29°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in Jefferson, Texas, with temperature in the range of an average high of 92.3°F (33.5°C) and an average low of 70.5°F (21.4°C). June's arrival is noted with a slight increase in the average high-temperature, moving from a moderately hot 84.2°F (29°C) in May to a tropical 92.3°F (33.5°C). Weather in June »
Weather in July
July, the same as June, in Jefferson, Texas, is another tropical summer month, with an average temperature varying between 94.8°F (34.9°C) and 73°F (22.8°C). July proves to be the warmest month, recording an average peak temperature of 94.8°F (34.9°C) and a minimum temperature of 73°F (22.8°C). Throughout July, the heat index is evaluated at a burning hot 120.2°F (49°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Jefferson, Texas, with temperature in the range of an average low of 73°F (22.8°C) and an average high of 94.6°F (34.8°C). Upon the onset of August, Jefferson witnesses an average high-temperature of a still hot 94.6°F (34.8°C), showing a close resemblance to the prior month. Weather in August »
Weather in September
The first month of the autumn, September, is still a hot month in Jefferson, Texas, with an average temperature ranging between min 67.1°F (19.5°C) and max 88.3°F (31.3°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from 94.6°F (34.8°C) in August to a still tropical 88.3°F (31.3°C). Weather in September »
Weather in October
October, like September, in Jefferson, Texas, is a moderately hot autumn month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 76.3°F (24.6°C). Jefferson's average high-temperature decreases in October, falling from a tropical 88.3°F (31.3°C) in September to a moderately hot 76.3°F (24.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Jefferson, is another comfortable month, with an average temperature varying between 63.9°F (17.7°C) and 47.1°F (8.4°C). In the transition to November, Jefferson observes a drop in the average high-temperature, moving from a warm 76.3°F (24.6°C) in October to an enjoyable 63.9°F (17.7°C). Weather in November »
Weather in December
December, the first month of the winter in Jefferson, is still a mild month, with an average temperature fluctuating between 55.8°F (13.2°C) and 41.2°F (5.1°C). The onset of December entails a subtle temperature shift, as the average high-temperature eases from a comfortable 63.9°F (17.7°C) in November to a still refreshing 55.8°F (13.2°C). Weather in December »
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
January, having an average high-temperature of 54°F (12.2°C) and an average low-temperature of 37.9°F (3.3°C), is the coldest month.
How many days does it rain?
In Jefferson, during the entire year, the rain falls for 155.6 days and collects up to 35.79" (909mm) of precipitation.
When does it snow?
January through March are months with snowfall.
How many days does it snow?
Throughout the year, there are 2.6 snowfall days, and 1.34" (34mm) of snow is accumulated.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 3.
What is the most humid month?
February is the most humid month, with an average relative humidity of 80%.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 1.1 days and accumulates 0.63" (16mm) of snow.
When is Daylight Saving Time (DST) in Jefferson?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Jefferson, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month?
The month with the most rainfall is April, when the rain falls for 13.3 days and typically aggregates up to 4.41" (112mm) of precipitation.
When it does not snow?
April through December are months without snowfall.
When are the longest days?
With an average of 14h and 18min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 7.
What time of the year is the hottest?
The warmest temperatures occur during July, when averages reach a peak of 94.8°F (34.9°C) and a low of 73°F (22.8°C).
What is the least humid month?
The least humid month is August, with an average relative humidity of 67%.
What month has the most sunshine?
With an average of 10.6h of sunshine, August has the most sunshine of the year.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 13.6 days and typically collects 2.05" (52mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 10h and 0min of daylight.
What is the month with the least sunshine?
With an average of 5.1h of sunshine, December has the least sunshine of the year.
Average temperature
Jefferson, TX
The warmest month (with the highest average high temperature) is July (94.8°F).
The month with the lowest average high temperature is January (54°F).
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure
Jefferson, TX
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - 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 (29.93"Hg).
Average wind speed
Jefferson, TX
- Average wind speed in January:
6.5mph - Average wind speed in February:
6.8mph - Average wind speed in March:
7mph - Average wind speed in April:
7.3mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.2mph - Average wind speed in October:
5.8mph - Average wind speed in November:
6.3mph - Average wind speed in December:
6.1mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Jefferson, TX
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (67%).
Average rainfall
Jefferson, TX
- Average rainfall in January:
2.52" - Average rainfall in February:
2.99" - Average rainfall in March:
3.5" - Average rainfall in April:
4.41" - Average rainfall in May:
3.27" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.56" - Average rainfall in September:
2.05" - Average rainfall in October:
3.27" - Average rainfall in November:
2.48" - Average rainfall in December:
3.5"
The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days
Jefferson, TX
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
13.6 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
12.1 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is January (10.3 days).
Average snowfall
Jefferson, TX
The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Jefferson, TX
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1.1 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
0.3 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Jefferson, TX
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 2min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days
Jefferson, TX
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
13.5 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
14 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is February (12.8 days).
Average UV index
Jefferson, TX
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
Jefferson, TX
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Jefferson, TX
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Jefferson, Texas, USA
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