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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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a moderate winter month in Jefferson, Louisiana, with an average temperature fluctuating between 47.8°F (8.8°C) and 60.4°F (15.8°C). January, with its average high-temperature of 60.4°F (15.8°C) and an average low-temperature of 47.8°F (8.8°C), holds the record as the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Jefferson, is a comfortable month, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 64.4°F (18°C). Jefferson marks the onset of February with an average high-temperature of an enjoyable 64.4°F (18°C), a subtle shift from January's 60.4°F (15.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a pleasant month in Jefferson, Louisiana, with an average temperature ranging between min 57.7°F (14.3°C) and max 70.7°F (21.5°C). Jefferson, Louisiana, in March experiences a slight uptick in the average high-temperature, adjusting from February's refreshing 64.4°F (18°C) to an agreeable 70.7°F (21.5°C). Weather in March »
Weather in April
April is a moderately hot spring month in Jefferson, Louisiana, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 63.5°F (17.5°C). The onset of April brings a minor temperature shift, with the average high-temperature moving from an agreeable 70.7°F (21.5°C) in March to a moderately hot 76.6°F (24.8°C). Weather in April »
Weather in May
The last month of the spring, May, is also a moderately hot month in Jefferson, Louisiana, with an average temperature ranging between max 82.9°F (28.3°C) and min 70.9°F (21.6°C). The shift into May is accompanied by a modest temperature increase, with the average high-temperature edging up from 76.6°F (24.8°C) in April to a still warm 82.9°F (28.3°C). Weather in May »
Weather in June
June, the first month of the summer in Jefferson, is a tropical month, with temperature in the range of an average low of 77°F (25°C) and an average high of 88.3°F (31.3°C). In Jefferson, the average high-temperature in June slightly rises, from a moderately hot 82.9°F (28.3°C) in May, to a tropical 88.3°F (31.3°C). Weather in June »
Weather in July
July, the same as June, in Jefferson, Louisiana, is another tropical summer month, with an average temperature fluctuating between 78.4°F (25.8°C) and 89.2°F (31.8°C). In Jefferson, July is identified by the highest average temperatures, reaching a peak of 89.2°F (31.8°C) and a low of 78.4°F (25.8°C). In July, the heat index is computed to be a blisteringly hot 107.6°F (42°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Jefferson, Louisiana, with an average temperature varying between 89.1°F (31.7°C) and 79°F (26.1°C). August welcomes an average high-temperature of a still hot 89.1°F (31.7°C), not much different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Jefferson, is still a tropical month, with temperature in the range of an average low of 75.2°F (24°C) and an average high of 86.5°F (30.3°C). The dawn of September sees an average high-temperature of a still tropical 86.5°F (30.3°C), subtly contrasting with August's 89.1°F (31.7°C). Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Jefferson, Louisiana, with an average temperature varying between 78.4°F (25.8°C) and 66.6°F (19.2°C). In Jefferson, the average high-temperature in October gently drops from a hot 86.5°F (30.3°C) in September to a moderately hot 78.4°F (25.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another pleasant month in Jefferson, Louisiana, with an average temperature varying between 56.5°F (13.6°C) and 68.9°F (20.5°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a moderately hot 78.4°F (25.8°C) in October to an agreeable 68.9°F (20.5°C). Weather in November »
Weather in December
December, the first month of the winter in Jefferson, is still a comfortable month, with an average temperature varying between 52°F (11.1°C) and 63.3°F (17.4°C). Jefferson's transition into December involves a gentle shift in temperature, receding from an agreeable 68.9°F (20.5°C) in November to a comfortable 63.3°F (17.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Jefferson?
Jefferson, Louisiana, witnesses the coldest weather in January, with temperatures averaging a high of 60.4°F (15.8°C) and a low of 47.8°F (8.8°C).
How much does it rain in Jefferson?
Throughout the year, there are 104.1 rainfall days, and 8.39" (213mm) of precipitation is accumulated.
What is the driest month in Jefferson?
March is the month with the least rainfall in Jefferson. Rain falls for 8.1 days and accumulates 0.39" (10mm) of precipitation.
When is Daylight Saving Time (DST) in Jefferson?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Jefferson, Louisiana, 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.
When is the highest UV index in Jefferson?
The months with the highest UV index in Jefferson are May through September, with an average maximum UV index of 7.
When are the longest days in Jefferson?
With an average of 14h and 0min of daylight, June has the longest days of the year in Jefferson.
What month has the most sunshine in Jefferson?
June has the most sunshine of the year, with an average of 11h of sunshine.
What is the warmest month in Jefferson?
In Jefferson, Louisiana, the average highest temperatures are observed in July, with a high of 89.2°F (31.8°C) and a low of 78.4°F (25.8°C).
What is the wettest month in Jefferson?
The month with the most rainfall in Jefferson, Louisiana, is July, when the rain falls for 13.3 days and typically aggregates up to 1.3" (33mm) of precipitation.
What is the least humid month in Jefferson?
The least humid month in Jefferson is October, with an average relative humidity of 71%.
What is the most humid month in Jefferson?
With an average relative humidity of 78%, December is the most humid month in Jefferson.
What is the month with the shortest days in Jefferson?
The month with the shortest days is December, with an average of 10h and 18min of daylight.
What is the month with the least sunshine in Jefferson?
The month with the least sunshine in Jefferson, Louisiana, is December, with an average of 5.1h of sunshine.
When is the lowest UV index in Jefferson?
The month with the lowest UV index is December, with an average maximum UV index of 3.
Average temperature
Jefferson, LA
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (60.4°F).
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).
Average pressure
Jefferson, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed
Jefferson, LA
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.5mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.5mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.3mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are February and April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity
Jefferson, LA
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Jefferson, LA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.51" - Average rainfall in March:
0.39" - Average rainfall in April:
0.47" - Average rainfall in May:
0.75" - Average rainfall in June:
0.87"
- Average rainfall in July:
1.3" - Average rainfall in August:
1.14" - Average rainfall in September:
0.43" - Average rainfall in October:
0.87" - Average rainfall in November:
0.51" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.39").
Average rainfall days
Jefferson, LA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
7.2 days - Average rainfall days in March:
8.1 days - Average rainfall days in April:
6.8 days - Average rainfall days in May:
8.6 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
10.9 days - Average rainfall days in October:
5.9 days - Average rainfall days in November:
4.5 days - Average rainfall days in December:
7.2 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is November (4.5 days).
Average daylight / Average sunshine
Jefferson, LA
- Average daylight in January:
10h and 3min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 4min - Average daylight in June:
14h and 0min
- Average daylight in July:
13h and 5min - Average daylight in August:
13h and 1min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 4min - 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 January:
5h and 4min - Average sunshine in February:
5h and 2min - Average sunshine in March:
7h and 5min - Average sunshine in April:
9h and 4min - Average sunshine in May:
10h and 3min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 5min - Average sunshine in September:
10h and 1min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days
Jefferson, LA
- Average sunshine days in January:
23.9 days - Average sunshine days in February:
19.1 days - Average sunshine days in March:
21.7 days - Average sunshine days in April:
22.1 days - Average sunshine days in May:
19.7 days - Average sunshine days in June:
14.9 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
23.4 days - Average sunshine days in November:
24.6 days - Average sunshine days in December:
21.8 days
The month with the most sunshine days is November (24.6 days).
The month with the least sunshine days is August (10.3 days).
Average UV index
Jefferson, LA
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Jefferson, LA
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility
Jefferson, LA
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).
Jefferson, Louisiana, USA
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