Climate and monthly weather forecastSlidell, TX
Climate and monthly weather forecast
Weather in January
January, the same as December, is another fresh winter month in Slidell, Texas, with an average temperature fluctuating between 53.6°F (12°C) and 37.2°F (2.9°C). Slidell witnesses the coldest weather in January, with temperatures averaging a high of 53.6°F (12°C) and a low of 37.2°F (2.9°C). Weather in January »Weather in February
The last month of the winter, February, is a mild month in Slidell, Texas, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 57.4°F (14.1°C). The commencement of February records an average high-temperature of a refreshing 57.4°F (14.1°C), barely varying from January's 53.6°F (12°C). Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Slidell, Texas, with an average temperature ranging between min 48.7°F (9.3°C) and max 66°F (18.9°C). March witnesses a subtle temperature ascent, adjusting from a moderate 57.4°F (14.1°C) in February to a still refreshing 66°F (18.9°C). Weather in March »Weather in April
April in Slidell, Texas, is a warm spring month, with an average temperature varying between 73.6°F (23.1°C) and 54.9°F (12.7°C). April's arrival brings a slight change in high-temperatures, adjusting from a comfortable 66°F (18.9°C) in March to a warm 73.6°F (23.1°C). Weather in April »Weather in May
May, the last month of the spring in Slidell, is another warm month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 63.1°F (17.3°C). May introduces a marginal temperature uplift, with average high-temperatures adjusting from April's moderately hot 73.6°F (23.1°C) to a still warm 81°F (27.2°C). Weather in May »Weather in June
June, the first month of the summer in Slidell, is a tropical month, with temperature in the range of an average high of 90°F (32.2°C) and an average low of 72.3°F (22.4°C). Slidell sees an increase in average high-temperatures during June, moving from a moderately hot 81°F (27.2°C) in May to a hot 90°F (32.2°C). Weather in June »Weather in July
July, the same as June, in Slidell, Texas, is another hot summer month, with an average temperature varying between 75°F (23.9°C) and 93.9°F (34.4°C). The shift into July finds Slidell at an average high-temperature of a still tropical 93.9°F (34.4°C), closely comparable to June's conditions. Weather in July »Weather in August
The last month of the summer, August, is a torrid month in Slidell, Texas, with an average temperature varying between 95.5°F (35.3°C) and 74.8°F (23.8°C). August, characterized by an average high temperature of 95.5°F (35.3°C) and a low temperature of 74.8°F (23.8°C), is generally the warmest month. For August, the heat index is appraised at a blisteringly hot 111.2°F (44°C). Weather in August »Weather in September
September, the first month of the autumn in Slidell, is also a hot month, with temperature in the range of an average high of 86.9°F (30.5°C) and an average low of 68.9°F (20.5°C). The onset of September is marked by a minor decrease in temperature, transitioning from a very hot 95.5°F (35.3°C) in August to a hot 86.9°F (30.5°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Slidell, Texas, with an average temperature fluctuating between 57.4°F (14.1°C) and 74.8°F (23.8°C). October brings a decrease in the average high-temperature, shifting from a hot 86.9°F (30.5°C) in September to a moderately hot 74.8°F (23.8°C). Weather in October »Weather in November
November, the last month of the autumn in Slidell, is also an enjoyable month, with an average temperature varying between 47.3°F (8.5°C) and 63.7°F (17.6°C). The onset of November introduces a moderate change in Slidell's weather, with average high-temperatures falling from October's moderately hot 74.8°F (23.8°C) to an enjoyable 63.7°F (17.6°C). Weather in November »Weather in December
December, the first month of the winter in Slidell, is also a fresh month, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 39.4°F (4.1°C). The onset of December is marked by a decrease in temperature, transitioning from a refreshing 63.7°F (17.6°C) in November to a cool 54.3°F (12.4°C). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Slidell, TX
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (53.6°F).
The month with the highest average low temperature is July (75°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).
Average pressure
Slidell, TX
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"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 (29.9"Hg).
Average wind speed
Slidell, TX
- Average wind speed in January:
9.4mph - Average wind speed in February:
10mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.4mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.4mph - Average wind speed in November:
8.9mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).
Average humidity
Slidell, TX
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall
Slidell, TX
- Average rainfall in January:
1.1" - Average rainfall in February:
1.42" - Average rainfall in March:
2.17" - Average rainfall in April:
1.81" - Average rainfall in May:
2.99" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.05" - Average rainfall in August:
2.28" - Average rainfall in September:
2.87" - Average rainfall in October:
2.95" - Average rainfall in November:
1.61" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days
Slidell, TX
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
12.4 days - Average rainfall days in April:
12 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
13 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Slidell, TX
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Slidell, TX
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
1.4 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:
0.5 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Slidell, TX
- Average daylight in January:
10h and 12min - 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 18min - Average daylight in November:
10h and 24min - 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:
6h and 6min - Average sunshine in February:
7h and 12min - Average sunshine in March:
7h and 12min - Average sunshine in April:
8h and 30min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days
Slidell, TX
- Average sunshine days in January:
23.7 days - Average sunshine days in February:
17.4 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
13.7 days - Average sunshine days in June:
15.1 days
- Average sunshine days in July:
16.3 days - Average sunshine days in August:
16 days - Average sunshine days in September:
14.3 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
21.4 days
The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is May (13.7 days).
Average UV index
Slidell, TX
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Slidell, TX
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility
Slidell, TX
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).





