Climate and monthly weather forecastJamestown, LA
Climate and monthly weather forecast
Weather in January
January, like December, in Jamestown, Louisiana, is a cool winter month, with an average temperature ranging between max 54.1°F (12.3°C) and min 38.5°F (3.6°C). January, marked by an average high-temperature of 54.1°F (12.3°C) and a low-temperature of 38.5°F (3.6°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a moderate month in Jamestown, Louisiana, with an average temperature fluctuating between 58.5°F (14.7°C) and 42.4°F (5.8°C). The commencement of February records an average high-temperature of a mild 58.5°F (14.7°C), barely varying from January's 54.1°F (12.3°C). Weather in February »Weather in March
March, the first month of the spring in Jamestown, is a comfortable month, with an average temperature varying between 67.3°F (19.6°C) and 49.1°F (9.5°C). March's arrival coincides with a subtle temperature rise, moving from February's refreshing 58.5°F (14.7°C) to an enjoyable 67.3°F (19.6°C). Weather in March »Weather in April
April in Jamestown, Louisiana, is a warm spring month, with an average temperature ranging between min 54.9°F (12.7°C) and max 76.3°F (24.6°C). April shows a rise in the average high-temperature, moving from March's refreshing 67.3°F (19.6°C) to a moderately hot 76.3°F (24.6°C). Weather in April »Weather in May
May, the last month of the spring in Jamestown, is also a moderately hot month, with an average temperature varying between 84.7°F (29.3°C) and 63.3°F (17.4°C). As Jamestown welcomes May, the average high-temperature displays a subtle shift, adjusting from a warm 76.3°F (24.6°C) in April to a still moderately hot 84.7°F (29.3°C). Weather in May »Weather in June
June, the first month of the summer in Jamestown, is a hot month, with temperature in the range of an average low of 70.9°F (21.6°C) and an average high of 92.1°F (33.4°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from a warm 84.7°F (29.3°C) in May to a hot 92.1°F (33.4°C). Weather in June »Weather in July
July, the same as June, in Jamestown, Louisiana, is another tropical summer month, with temperature in the range of an average low of 73.2°F (22.9°C) and an average high of 94.6°F (34.8°C). July and August, with an average high-temperature of 94.6°F (34.8°C), are the warmest months. July's average heat index is evaluated at a burning hot 122°F (50°C). Weather in July »Weather in August
August, the last month of the summer in Jamestown, is another hot month, with temperature in the range of an average high of 94.6°F (34.8°C) and an average low of 72.9°F (22.7°C). The months of July and August bring the highest temperatures, averaging a high of 94.6°F (34.8°C). In August, the heat index is evaluated at a blazing hot 120.2°F (49°C). Weather in August »Weather in September
September, the first month of the autumn in Jamestown, is still a hot month, with an average temperature ranging between max 88.5°F (31.4°C) and min 67.3°F (19.6°C). The transition to September results in a modest reduction in average high-temperature, moving from 94.6°F (34.8°C) in August to a still tropical 88.5°F (31.4°C). Weather in September »Weather in October
October, like September, in Jamestown, Louisiana, is another warm autumn month, with an average temperature ranging between max 77.9°F (25.5°C) and min 56.5°F (13.6°C). In Jamestown, entering October brings a temperature decrement, reducing from September's tropical 88.5°F (31.4°C) to a moderately hot 77.9°F (25.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also an enjoyable month in Jamestown, Louisiana, with an average temperature varying between 46.9°F (8.3°C) and 64.6°F (18.1°C). As November arrives, Jamestown's weather displays a decrease in high-temperatures, transitioning from October's warm 77.9°F (25.5°C) to a comfortable 64.6°F (18.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderate month in Jamestown, Louisiana, with an average temperature fluctuating between 42.1°F (5.6°C) and 56.5°F (13.6°C). December's arrival comes with a mild decrease in the average high-temperature, moving subtly from 64.6°F (18.1°C) in November to a still refreshing 56.5°F (13.6°C). Weather in December »Updated: Jun 11, 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
With an average high-temperature of 54.1°F (12.3°C) and an average low-temperature of 38.5°F (3.6°C), January is the coldest month.
Throughout the year, there are 158.9 rainfall days, and 39.17" (995mm) of precipitation is accumulated.
January through March and December are months with snowfall.
Throughout the year, in Jamestown, there are 3.2 snowfall days, and 0.94" (24mm) of snow is accumulated.
January and December, with an average maximum UV index of 3, are months with the lowest UV index.
The most humid month in Jamestown is February, with an average relative humidity of 82%.
The month with the most snowfall in Jamestown is February, when snow falls for 1.1 days and typically aggregates up to 0.47" (12mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
In Jamestown, snow does not fall in April through November.
The month with the most rainfall is May, when the rain falls for 14.8 days and typically aggregates up to 4.17" (106mm) of precipitation.
The month with the longest days is June, with an average of 14h and 12min of daylight.
June through August, with an average maximum UV index of 7, are months with the highest UV index.
In Jamestown, the warmest period comes during July and August, when the average high-temperature touches 94.6°F (34.8°C).
The months with the least rainfall are July and September Rain falls for 15 days and accumulates 2.52" (64mm) of rain.
August is the least humid month, with an average relative humidity of 69%.
The month with the most sunshine is August, with an average of 10.4h of sunshine.
With an average of 10h and 6min of daylight, December has the shortest days of the year.
December has the least sunshine of the year, with an average of 4.9h of sunshine.
Average temperature
Jamestown, LA
The warmest months (with the highest average high temperature) are July and August (94.6°F).
The month with the lowest average high temperature is January (54.1°F).
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure
Jamestown, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"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
Jamestown, LA
- Average wind speed in January:
6.3mph - Average wind speed in February:
6.6mph - Average wind speed in March:
6.8mph - Average wind speed in April:
7.1mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5mph - Average wind speed in October:
5.7mph - Average wind speed in November:
6.1mph - Average wind speed in December:
6.1mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity
Jamestown, LA
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (69%).
Average rainfall
Jamestown, LA
- Average rainfall in January:
3.15" - Average rainfall in February:
3.94" - Average rainfall in March:
3.82" - Average rainfall in April:
3.98" - Average rainfall in May:
4.17" - Average rainfall in June:
3.07"
- Average rainfall in July:
2.52" - Average rainfall in August:
2.99" - Average rainfall in September:
2.52" - Average rainfall in October:
2.91" - Average rainfall in November:
2.64" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is May (4.17").
The driest months (with the least rainfall) are July and September (2.52").
Average rainfall days
Jamestown, LA
- Average rainfall days in January:
11.1 days - Average rainfall days in February:
12.7 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
14.4 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
15.1 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is October (9.5 days).
Average snowfall
Jamestown, LA
The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Jamestown, LA
- Average snowfall days in January:
0.9 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:
0.3 days - Average snowfall days in December:
0.6 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
Jamestown, LA
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 12min
- Average daylight in July:
14h and 0min - 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 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 48min - Average sunshine in May:
9h and 24min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 24min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 42min - Average sunshine in December:
4h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days
Jamestown, LA
- Average sunshine days in January:
17 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
14 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
17.7 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (12.9 days).
Average UV index
Jamestown, 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
Jamestown, LA
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility
Jamestown, LA
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
