Humid subtropical climate
Climate Slidell - Louisiana
Annual high77ºF
Annual low58ºF
Precipitation62.89 inch
| Month | HighºF | LowºF | Precipinch |
|---|---|---|---|
| Jan | 61 | 40 | 5.65 |
| Feb | 64 | 44 | 4.95 |
| Mar | 71 | 50 | 5.28 |
| Apr | 77 | 57 | 4.36 |
| May | 84 | 65 | 5.16 |
| Jun | 89 | 71 | 5.57 |
| Jul | 91 | 73 | 6.83 |
| Aug | 91 | 73 | 6.92 |
| Sep | 87 | 69 | 4.99 |
| Oct | 80 | 58 | 3.82 |
| Nov | 71 | 50 | 4.47 |
| Dec | 63 | 43 | 4.89 |
- JanHigh 61ºFLow 40ºFPrecip 5.65 inch
- FebHigh 64ºFLow 44ºFPrecip 4.95 inch
- MarHigh 71ºFLow 50ºFPrecip 5.28 inch
- AprHigh 77ºFLow 57ºFPrecip 4.36 inch
- MayHigh 84ºFLow 65ºFPrecip 5.16 inch
- JunHigh 89ºFLow 71ºFPrecip 5.57 inch
- JulHigh 91ºFLow 73ºFPrecip 6.83 inch
- AugHigh 91ºFLow 73ºFPrecip 6.92 inch
- SepHigh 87ºFLow 69ºFPrecip 4.99 inch
- OctHigh 80ºFLow 58ºFPrecip 3.82 inch
- NovHigh 71ºFLow 50ºFPrecip 4.47 inch
- DecHigh 63ºFLow 43ºFPrecip 4.89 inch
Climate summary
What is the average weather in Slidell, Louisiana?
Slidell experiences a humid subtropical climate, characterized by hot summers and cool winters with strong seasonal contrast. The area is wet overall, receiving high annual precipitation. Rainfall is spread fairly evenly throughout the year, though heavy seasonal downpours or afternoon thunderstorms can occur during the warmer months.
Slidell weather averages
Annual high77ºF
Annual low58ºF
Precipitation62.89 inch
Daily normals Slidell - Louisiana - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 60.7 | 42.2 | 0.20 | 0.20 |
| Jan 2 | 60.6 | 42.1 | 0.40 | 0.40 |
| Jan 3 | 60.5 | 42.0 | 0.59 | 0.59 |
| Jan 4 | 60.5 | 41.9 | 0.79 | 0.79 |
| Jan 5 | 60.4 | 41.8 | 0.99 | 0.99 |
| Jan 6 | 60.4 | 41.7 | 1.19 | 1.19 |
| Jan 7 | 60.3 | 41.6 | 1.38 | 1.38 |
| Jan 8 | 60.3 | 41.6 | 1.58 | 1.58 |
| Jan 9 | 60.2 | 41.5 | 1.77 | 1.77 |
| Jan 10 | 60.2 | 41.5 | 1.97 | 1.97 |
| Jan 11 | 60.2 | 41.4 | 2.17 | 2.17 |
| Jan 12 | 60.2 | 41.4 | 2.36 | 2.36 |
| Jan 13 | 60.2 | 41.3 | 2.57 | 2.57 |
| Jan 14 | 60.2 | 41.3 | 2.77 | 2.77 |
| Jan 15 | 60.2 | 41.3 | 2.97 | 2.97 |
| Jan 16 | 60.3 | 41.3 | 3.17 | 3.17 |
| Jan 17 | 60.3 | 41.3 | 3.37 | 3.37 |
| Jan 18 | 60.3 | 41.3 | 3.57 | 3.57 |
| Jan 19 | 60.4 | 41.3 | 3.77 | 3.77 |
| Jan 20 | 60.5 | 41.3 | 3.97 | 3.97 |
| Jan 21 | 60.5 | 41.3 | 4.16 | 4.16 |
| Jan 22 | 60.6 | 41.4 | 4.35 | 4.35 |
| Jan 23 | 60.7 | 41.4 | 4.54 | 4.54 |
| Jan 24 | 60.8 | 41.5 | 4.73 | 4.73 |
| Jan 25 | 60.9 | 41.6 | 4.91 | 4.91 |
| Jan 26 | 61.0 | 41.7 | 5.08 | 5.08 |
| Jan 27 | 61.1 | 41.7 | 5.24 | 5.24 |
| Jan 28 | 61.3 | 41.8 | 5.41 | 5.41 |
| Jan 29 | 61.4 | 41.9 | 5.58 | 5.58 |
| Jan 30 | 61.5 | 42.1 | 5.75 | 5.75 |
| Jan 31 | 61.7 | 42.2 | 5.92 | 5.92 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Slidell - November 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Nov 1 | 80.1 | 43.0 | 0.00 |
| Nov 2 | – | – | – |
| Nov 3 | – | – | – |
| Nov 4 | – | – | – |
| Nov 5 | – | – | – |
| Nov 6 | – | – | – |
| Nov 7 | – | – | – |
| Nov 8 | – | – | – |
| Nov 9 | – | – | – |
| Nov 10 | – | – | – |
| Nov 11 | – | – | – |
| Nov 12 | – | – | – |
| Nov 13 | – | – | – |
| Nov 14 | – | – | – |
| Nov 15 | – | – | – |
| Nov 16 | – | – | – |
| Nov 17 | – | – | – |
| Nov 18 | – | – | – |
| Nov 19 | – | – | – |
| Nov 20 | – | – | – |
| Nov 21 | – | – | – |
| Nov 22 | – | – | – |
| Nov 23 | – | – | – |
| Nov 24 | – | – | – |
| Nov 25 | – | – | – |
| Nov 26 | – | – | – |
| Nov 27 | – | – | – |
| Nov 28 | – | – | – |
| Nov 29 | – | – | – |
| Nov 30 | – | – | – |
The data for November 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature80.1ºF · Nov 1
- Lowest max temperature80.1ºF · Nov 1
- Highest min temperature43.0ºF · Nov 1
- Lowest min temperature43.0ºF · Nov 1
Geo Slidell - Louisiana
Location
- Country
- United States
- State
- Louisiana
- County
- St. Tammany
- City
- Slidell
- Zip Code
- 70460
- Elevation
- 23 ft
- Longitude
- -89.82
- Latitude
- 30.33
- ICAO
- –
- IATA
- –