Unlock deeper multi-jurisdiction research
Full sub-pages, saves, and alerts are available on paid plans.
Weather & Climate
Slidell, Louisiana, United States
Overview
Climate data and monthly weather averages for Slidell.
Key Metrics
Annual Avg
19.6°C
Summer Avg
27.5°C
Winter Avg
11.2°C
Record High
41.9°C
Record Low
-8.1°C
Annual Precipitation
1584.1 mm
Avg Humidity
82%
Summer Humidity
79%
Winter Humidity
85%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 25.6° | 9.9° | -8.1° | 108.8 | 84% | 92 | 24 |
| Feb | 27.7° | 12.3° | -5.2° | 118.2 | 84% | 99 | 22.6 |
| Mar | 31.2° | 15.9° | -5.6° | 118.1 | 82% | 146 | 23.1 |
| Apr | 34.8° | 19.6° | 1.9° | 129.3 | 81% | 172 | 21.1 |
| May | 37.4° | 23.6° | 5.1° | 124.9 | 79% | 197 | 18.4 |
| Jun | 40.6° | 27.1° | 14.3° | 176.4 | 78% | 187 | 20.4 |
| Jul | 40.9° | 27.8° | 17.4° | 169.6 | 80% | 182 | 24.5 |
| Aug | 41.9° | 27.6° | 13.9° | 182.3 | 80% | 174 | 45 |
| Sep | 38.8° | 25.4° | 9.1° | 126 | 81% | 156 | 34 |
| Oct | 35.6° | 20.2° | 0.9° | 107 | 81% | 138 | 26.7 |
| Nov | 30.1° | 14.6° | -5.5° | 83.1 | 83% | 104 | 20.4 |
| Dec | 28.2° | 11.4° | -5.6° | 140.4 | 86% | 83 | 22.2 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
Subscribe to unlock the full sub-page depth for additional jurisdictions.
You can keep discovering Oyster publicly, but full multi-jurisdiction depth, tracking, alerts, and exports are part of paid access.