Climate and monthly weather forecastDelta, LA
Climate and monthly weather forecast
The climate of Delta
Delta, Louisiana, USA experiences a Köppen climate classification of Cfa, synonymous with a humid subtropical climate, with no dry season. This geographical location graces Delta with sizzling summers and mild winters - a mellifluous mix of weather that fluctuates across the year.In terms of temperature, Delta goes through a notable permutation within the year, rounding out a temperature range that spans from cool to fiercely hot. Peaks in the temperature rise to about 91.8°F (33.2°C) in July, while the winter month of January welcomes the cooler end of the range down to 39.6°F (4.2°C). Humidity levels also vary, ranging from a high of 80% in February and December to a lighter 69% in October.
As with many subtropical locations, rainfall is a characteristic feature of the weather profile. On average, Delta receives between 2.28" (58mm) in November to 3.98" (101mm) in April per month. Remarkably, the town sees some form of rain for up to 19.3 days in August. Snowfall, on the other hand, is a rarity with it being recorded in minor quantities during January and December only.
Total daylight hours vary from a maximum of 14.3 hours in June down to 10.1 hours in December. Corresponding with this, the daily sunshine hours fluctuate from a maximum of 10.6 hours in June to a minimum of 5 hours in December. Wind speeds show minor shifts throughout the year with an average of 8.1mph (13km/h) in February and an average low of 5.1mph (8.2km/h) in August.
The best time to visit Delta
While weather preferences are ultimately individual, a general assessment would recommend the spring months as the most favorable to visit Delta, Louisiana, USA. During April, temperatures are moderately warm, averaging from 49.8°F (9.9°C) to 75.2°F (24°C), and the city experiences the highest amount of rainfall, approximately 3.98" (101mm), adding a luscious richness to the flora of Delta.The worst time to visit Delta
Considering the propensity for hot and humid conditions, the summertime, particularly July and August, might present some discomfort for visitors not accustomed to such weather. With temperatures reaching up to 91.8°F (33.2°C), combined with high humidity levels and rainfall, these months might not be the most comfortable time to explore Delta.Spring weather in Delta
Spring in Delta welcomes a delightful shift in weather conditions. The period from March to May experiences an uptick in temperatures, moving from 49.8°F (9.9°C) to 83.1°F (28.4°C). The city also experiences generous amounts of rainfall, reaching up to 3.98" (101mm) in April, ensuring a vibrant blossoming of Delta’s green spaces. Average wind speeds during spring range from 7.8mph (12.6km/h) to 6.2mph (10km/h), offering a pleasant breeze to the temperate climate.Summer weather in Delta
By the start of June, summer in Delta is in full swing, offering perhaps the most distinctive weather of the year through to August. Temperatures can climb up to a sweltering 91.8°F (33.2°C), with the humidity levels equally balancing out. Rainfall is present throughout the summer months, averaging at 3.28" (83mm) in June, July, and August. These summer months brag 14.3 hours of daylight and a delightful 10.3 hours of sunshine per day.Autumn weather in Delta
Autumn unfolds from September to November. Being a transitional season, Delta experiences a gradual decline in temperatures, with highs going from 87.8°F (31°C) in September to a relatively more moderate 64.8°F (18.2°C) by November. Rainfall averages sit at 2.58" (66mm), making it the driest season of the year. This period also marks the diminishing daylight hours, tapering from 12.4 hours in September to 10.5 hours by November.Winter weather in Delta
Winter in Delta is characteristically mild and cool. The months from December through February see temperatures ranging between 39.6°F (4.2°C) and 58.8°F (14.9°C). On average, the season's rainfall sits at 3.45" (88mm) per month. While snowfall does occur in this season, it is minuscule, with January and December experiencing around 0.04" (1mm) of snowfall. The daylight and sunshine hours are at their lowest during winter, with daylight hours averaging at 10.5 and sunshine down to 5.1 hours in December.Weather in January
The beginning of the year in Delta, Louisiana, is marked by relatively cool temperatures, which offer a refreshing respite after the holidays. The weather is characterized by average humidity levels, occasional rainfall, and the shortest daylight of the year. Weather in January »Weather in February
February carries forward the cool weather from January, albeit with a gradual rise in both daytime and nighttime temperatures. This month is uniquely known for its relative abundance of rainfall with approximately 13.1 days of rain. Weather in February »Weather in March
As Delta, Louisiana, ushers in the spring, there is a noticeable shift in weather patterns. March brings longer daylight hours of around 12 hours, offering ample sunshine that starts to warm up the city. The mercury rises rapidly from the lows of winter, bringing in a comfortable zone of temperatures. Weather in March »Weather in April
April is when spring is in full swing in Delta. The weather is predominantly comfortable as the average temperatures vary significantly between day and night. Delta witnesses a pressure of 29.99" (762mm), indicative of the balanced weather conditions typical of this season. Weather in April »Weather in May
As Delta transitions to the warmer months, May sees clear skies, long hours of daylight, and significant rises in temperature. This month marks the onset of longer, hotter days in Louisiana. While high temperatures average around 83.1°F (28.4°C) and low temperatures around 63.5°F (17.5°C), May has rainfall of around 3.15" (80mm). Weather in May »Weather in June
June in Delta, Louisiana, comes with the full-on heat of summer. Temperatures during this period elevate to some of the highest of the year. The rise in mercury gets coupled with a slight decrease in humidity levels and downpour days. Weather in June »Weather in July
Delta's weather in July is characterized by its peak summer conditions with temperatures that can reach up to 91.8°F (33.2°C). The heat, coupled with relatively high humidity levels, can make the outdoor conditions quite stifling. Weather in July »Weather in August
In August, weather conditions in Delta remain similar to July with high temperatures and high daylight hours. August stands out as one of the cloudiest months, with a cloud cover percentage of 31%. The mercury hovers around the highs of 91.6°F (33.1°C), leading to warm afternoon hours. Weather in August »Weather in September
As summer slowly recedes, September welcomes the onset of autumn with slightly cooler temperatures. Despite the decrease in heat, the weather remains warm, making it a lovely time of the year for outdoor activities. With a somewhat cooler temperature and lower rainfall of 2.48" (63mm), September is a great time to visit Delta, Louisiana. Weather in September »Weather in October
The arrival of October ushers in the full-fledged autumn season in Delta. Temperatures start to cool further but remain pleasant, offering a comfortable window before the onset of winter. The average wind speed rises to 6.4mph (10.3km/h), adding freshness to the autumn days. Weather in October »Weather in November
November in Delta, Louisiana, showcases significant changes in weather patterns as it edges closer to winter. The daytime temperatures drop while the nights get chillier, signaling the onset of the colder months. With 10.1 days of rainfall, the weather takes on a cooler and somewhat rainier trend. Weather in November »Weather in December
December traditionally introduces winter to Delta, Louisiana, with temperatures dropping significantly from the previous month. The weather during this month is characterized by chill in the air, more cloud cover, and a relatively high chance of rains. 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
In Delta, January registers the lowest temperatures, averaging 54.1°F (12.3°C) at the peak and 39.6°F (4.2°C) at the lowest.
Throughout the year, there are 169.7 rainfall days, and 38.82" (986mm) of precipitation is accumulated.
January through March, November and December are months with snowfall.
January is the month with the most snowfall. Snow falls for 1 days and accumulates 0.43" (11mm) of snow.
Throughout the year, there are 2.6 snowfall days, and 1.06" (27mm) of snow is accumulated.
January and December, with an average maximum UV index of 3, are months with the lowest UV index.
The months with the highest humidity are February and December, with an average relative humidity of 80%.
February and December, with an average of 5h of sunshine, are months with the least sunshine.
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.
April is the month with the most rainfall. Rain falls for 13.8 days and accumulates 3.98" (101mm) of precipitation.
April through October are months without snowfall.
June has the longest days of the year, with an average of 14h and 12min of daylight.
June has the most sunshine of the year, with an average of 10.6h of sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
July temperatures tend to peak at an average high of 91.8°F (33.2°C) and dip to a low of 72.7°F (22.6°C).
October is the least humid month, with an average relative humidity of 69%.
The month with the least rainfall is November, when the rain falls for 10.1 days and typically collects 2.28" (58mm) of precipitation.
December has the shortest days of the year in Delta, with an average of 10h and 6min of daylight.
Average temperature
Delta, LA
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (54.1°F).
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).
Average pressure
Delta, 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:
29.99"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
Delta, LA
- Average wind speed in January:
8mph - Average wind speed in February:
8.1mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.5mph
- 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:
6.4mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Delta, LA
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Delta, LA
- Average rainfall in January:
3.46" - Average rainfall in February:
3.43" - Average rainfall in March:
3.58" - Average rainfall in April:
3.98" - Average rainfall in May:
3.15" - Average rainfall in June:
2.95"
- Average rainfall in July:
3.58" - Average rainfall in August:
3.5" - Average rainfall in September:
2.48" - Average rainfall in October:
2.95" - Average rainfall in November:
2.28" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days
Delta, LA
- Average rainfall days in January:
11.2 days - Average rainfall days in February:
13.1 days - Average rainfall days in March:
14.4 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
19.3 days - Average rainfall days in September:
15 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
13.6 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is October (8.9 days).
Average snowfall
Delta, LA
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Delta, LA
- Average snowfall days in January:
1 days - Average snowfall days in February:
0.8 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:
0.4 days
The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Delta, 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 18min - Average sunshine in February:
5h and 0min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 24min - Average sunshine in May:
10h and 6min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 48min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days
Delta, LA
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
13.6 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
10 days - Average sunshine days in August:
9.9 days - Average sunshine days in September:
12.8 days - Average sunshine days in October:
20.6 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
15.2 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (9.9 days).
Average UV index
Delta, 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
Delta, LA
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility
Delta, 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).
