Climate and monthly weather forecastAtherton, LA
Climate and monthly weather forecast
Weather in January
January, like December, in Atherton, Louisiana, is a cool winter month, with an average temperature varying between 39.2°F (4°C) and 53.1°F (11.7°C). With its high average temperature of 53.1°F (11.7°C) and a low of 39.2°F (4°C), January is regarded as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Atherton, is a mild month, with temperature in the range of an average high of 57.2°F (14°C) and an average low of 42.6°F (5.9°C). Stepping into February, Atherton records an average high-temperature of a mild 57.2°F (14°C), almost consistent with January. Weather in February »Weather in March
The first month of the spring, March, is an enjoyable month in Atherton, Louisiana, with an average temperature ranging between min 49.1°F (9.5°C) and max 65.7°F (18.7°C). The onset of March introduces a subtle rise in the average high-temperature, nudging from a moderate 57.2°F (14°C) in February to a comfortable 65.7°F (18.7°C). Weather in March »Weather in April
April in Atherton, Louisiana, is a warm spring month, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 56.1°F (13.4°C). With the onset of April, Atherton observes a minor temperature ascent, with the average high-temperature adjusting from March's enjoyable 65.7°F (18.7°C) to a warm 74.3°F (23.5°C). Weather in April »Weather in May
May, the last month of the spring in Atherton, is another warm month, with an average temperature fluctuating between 82.4°F (28°C) and 64.9°F (18.3°C). Atherton observes a slight ascent in average high-temperatures during May, adjusting from 74.3°F (23.5°C) in April to a still moderately hot 82.4°F (28°C). Weather in May »Weather in June
June, the first month of the summer in Atherton, is a hot month, with an average temperature ranging between max 89.8°F (32.1°C) and min 72.1°F (22.3°C). Atherton's transition into June sees a mild rise in the average high-temperature, edging from a warm 82.4°F (28°C) in May to a hot 89.8°F (32.1°C). Weather in June »Weather in July
July, the same as June, in Atherton, Louisiana, is a hot summer month, with an average temperature ranging between min 73.4°F (23°C) and max 91°F (32.8°C). The warmest month is July, with an average high-temperature of 91°F (32.8°C) and an average low-temperature of 73.4°F (23°C). For July, the heat index is evaluated at a blazing hot 113°F (45°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Atherton, Louisiana, with an average temperature ranging between min 72.7°F (22.6°C) and max 90.3°F (32.4°C). The shift from July to August is characterized by an average high-temperature of a still hot 90.3°F (32.4°C), not significantly different from the 91°F (32.8°C) of July. Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Atherton, Louisiana, with an average temperature fluctuating between 86.9°F (30.5°C) and 67.8°F (19.9°C). September's arrival brings an average high-temperature of a still tropical 86.9°F (30.5°C), slightly deviating from August's 90.3°F (32.4°C). Weather in September »Weather in October
October, like September, in Atherton, Louisiana, is a moderately hot autumn month, with an average temperature ranging between max 76.5°F (24.7°C) and min 58.1°F (14.5°C). October implies a gentle temperature shift, with average high-temperatures reducing from September's hot 86.9°F (30.5°C) to a warm 76.5°F (24.7°C). Weather in October »Weather in November
November, the last month of the autumn in Atherton, is another refreshing month, with an average temperature varying between 63.5°F (17.5°C) and 47.7°F (8.7°C). The transition into November involves a decrease in the average high-temperature, falling from a warm 76.5°F (24.7°C) in October to a comfortable 63.5°F (17.5°C). Weather in November »Weather in December
December, the first month of the winter in Atherton, is still a mild month, with an average temperature ranging between max 55.9°F (13.3°C) and min 43°F (6.1°C). Atherton's weather in December involves a mild decrease in the average high-temperature, moving down slightly from November's comfortable 63.5°F (17.5°C) to a mild 55.9°F (13.3°C). Weather in December »Updated: Jun 4, 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
January brings the lowest temperatures, with an average high of 53.1°F (11.7°C) and an average low of 39.2°F (4°C).
In Atherton, Louisiana, during the entire year, the rain falls for 158.9 days and collects up to 37.28" (947mm) of precipitation.
January through March are months with snowfall.
The months with the most snowfall are January and February, with an average 0.16" (4mm) of accumulated snow.
In Atherton, during the entire year, snow falls for 2.2 days and aggregates up to 0.43" (11mm) of snow.
The months with the lowest UV index are January and December, with an average maximum UV index of 3.
February is the most humid month in Atherton, with an average relative humidity of 80%.
With an average of 4.9h of sunshine, February has the least sunshine of the year.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Atherton, 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.
The month with the most rainfall is April, when the rain falls for 13.1 days and typically aggregates up to 4.41" (112mm) of precipitation.
April through December are months without snowfall in Atherton.
With an average of 14h and 18min of daylight, June has the longest days of the year.
June has the most sunshine of the year, with an average of 10.7h of sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
In Atherton, the average highest temperatures are observed in July, with a high of 91°F (32.8°C) and a low of 73.4°F (23°C).
September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.85" (47mm) of precipitation.
The least humid month is October, with an average relative humidity of 67%.
December has the shortest days of the year, with an average of 10h and 0min of daylight.
Average temperature
Atherton, LA
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.1°F).
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure
Atherton, LA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Atherton, LA
- Average wind speed in January:
8.8mph - Average wind speed in February:
9.1mph - Average wind speed in March:
8.7mph - Average wind speed in April:
8.4mph - Average wind speed in May:
7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.6mph - Average wind speed in October:
7mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity
Atherton, LA
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (67%).
Average rainfall
Atherton, LA
- Average rainfall in January:
3.46" - Average rainfall in February:
3.86" - Average rainfall in March:
3.46" - Average rainfall in April:
4.41" - Average rainfall in May:
2.87" - Average rainfall in June:
2.72"
- Average rainfall in July:
3.07" - Average rainfall in August:
2.48" - Average rainfall in September:
1.85" - Average rainfall in October:
3.35" - Average rainfall in November:
2.32" - Average rainfall in December:
3.43"
The wettest month (with the highest rainfall) is April (4.41").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Atherton, LA
- Average rainfall days in January:
11.5 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
15.5 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
14 days
- Average rainfall days in July:
16.7 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
12 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
13.4 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.5 days).
Average snowfall
Atherton, LA
The months with the highest snowfall are January and February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Atherton, LA
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
0.7 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:
0.2 days - Average snowfall days in December:
0.2 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Atherton, LA
- Average daylight in January:
10h and 18min - 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 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - 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 18min - Average sunshine in February:
4h and 54min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 30min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 30min - Average sunshine in September:
10h and 6min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Atherton, LA
- Average sunshine days in January:
17.9 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
12.2 days - Average sunshine days in August:
12.9 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.2 days).
Average UV index
Atherton, LA
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
Atherton, LA
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility
Atherton, 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).
