As of Oct 13, 2026, the latest day this station has reported
How much rain has St. Tammany Parish, Louisiana, had in 2026?
44.20 inches of rain have fallen so far in 2026 at the weather station at Slidell Airport, St. Tammany Parish, through Oct 13. That is 7.04 inches less than a usual year to date (86% of usual).
- Rain so far
- 44.20 in
- Usual by Oct 13
- 51.24 in
- Percent of usual
- 86%
- 2025 by Oct 13
- 36.98 in
This is St. Tammany Parish’s 2026 so far, drawn as a Rain Print. Put your name and dates on it: framed $89, print $45.Get St. Tammany Parish’s 2026 rain and snow drawn as a Rain Print, with your name and dates: framed $89, print $45. Make yours
Prints of 2026 ship in January, once the full year is in.
Want another year, like the drought or the year you married? Rainfall art of any town and year.
Month by month
| Month | Rain, in | Usual, in | Vs usual |
|---|---|---|---|
| Jan | 3.25 | 5.57 | −2.32 |
| Feb | 1.15 | 4.14 | −2.99 |
| Mar | 3.65 | 4.94 | −1.29 |
| Apr | 3.95 | 5.21 | −1.26 |
| May | 11.94 | 5.46 | +6.48 |
| Jun | 8.99 | 6.11 | +2.88 |
| Jul | 2.63 | 7.25 | −4.62 |
| Aug | 2.48 | 6.96 | −4.48 |
| Sep | 4.27 | 4.14 | +0.13 |
| Oct to the 13th | 1.89 | 1.46 | +0.43 |
| So far | 44.20 | 51.24 | −7.04 |
2026 so far in St. Tammany Parish
- Wettest month: May, 11.94 inches.
- Biggest single day: 5.44 inches on Jun 18.
- Longest dry stretch: 12 days in a row with the gauge at zero, Mar 17 to Mar 28.
- 2025 by the same date: 36.98 inches at the same station (it missed 6 days). On the 280 days both years reported, 2026 had 7.22 inches more than 2025.
The station, and what usual means
The numbers come from NOAA’s daily record for the station at Slidell Airport (station ID 53865), 10 miles from the middle of St. Tammany Parish. It reported every one of the 286 days from Jan 1 to Oct 13. Rain here means everything the gauge caught: rain, and snow melted down to water. A trace counts as zero.
Usual means NOAA’s 1991 to 2020 daily normals for this station, added up over the same 286 days the station reported, so a missing day counts on neither side.
Why this station: 5 stations inside St. Tammany Parish reported at least 90% of the days in 2026. Mountain snow sites, and stations far above the rest in the county, come last, since their rain is not what the farms below get. Then the pick goes to one with NOAA normals, then the most days reported, then the one nearest the middle of the county. Your own rain gauge can read differently a few miles away.
Questions
How much rain has St. Tammany Parish, Louisiana, had in 2026?
44.20 inches of rain have fallen so far in 2026 at the weather station at Slidell Airport, St. Tammany Parish, through Oct 13. That is 7.04 inches less than a usual year to date (86% of usual).
Is St. Tammany Parish wetter or drier than usual in 2026?
Drier so far. The weather station at Slidell Airport had 44.20 inches from Jan 1 to Oct 13, 86% of the usual 51.24 inches for the same days.
What was the wettest month in St. Tammany Parish in 2026?
May, with 11.94 inches at the weather station at Slidell Airport, counting Jan 1 through Oct 13.
What was the biggest rain in St. Tammany Parish in 2026?
5.44 inches on Jun 18, 2026, the most the gauge caught in one day this year through Oct 13.
How does 2026 compare with 2025 in St. Tammany Parish?
From Jan 1 to Oct 13, the weather station at Slidell Airport had 36.98 inches in 2025 (2025 missed 6 days) and 44.20 inches in 2026. On the 280 days both years reported, 2026 had 7.22 inches more than 2025.
Next door
- Jefferson Parish 53.95 in, 104%
- Orleans Parish 33.31 in, 67%
- Tangipahoa Parish 54.57 in, 104%
- Washington Parish 49.53 in
Rain in Louisiana, county by county · PRF insurance in St. Tammany Parish · Farmland Atlas: St. Tammany Parish