Louisiana · county areal climate 1951–2025

St. Tammany Parish, LA

A 62.8" / 68.2°F normal · 2025 ran 78% of normal precipitation.
2026 so far · through Jul 25: This area is at 110% (40.6") of the 1996–2025 to-date normal — the 29th wettest start of 76 years. Temperature +1.4°F vs normal. U.S. year-to-date →

Normal (1996–2025)

62.8in
annual precipitation · 68.2°F

2025 vs Normal

78%
48.9" · 69.4°F (+1.2 vs normal)

Wettest Year

91.8in
2021

Driest Year

42.8in
2000

Biggest Rain Day

8.13in
Aug 30 · 2021

Warmest Year

71.0°F
2023

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

51°
J
55°
F
62°
M
68°
A
75°
M
81°
J
82°
J
82°
A
78°
S
69°
O
60°
N
54°
D
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the station records.

Nearby

← All Louisiana countiesU.S. overview
WettestSince · browse by state · precipitation & snowfall records · NOAA/RCC-ACIS ThreadEx gauge record · part of Weather Trader · supported by Substack Subscribers
© 2026 Weather Trader · All rights reserved