Louisiana has an average annual temperature of
66.4°F
(across all 21 cities) with approximately
1526 mm of annual precipitation
and average humidity of 79%.
The warmest city is West Monroe
with average July highs of 104°F,
while West Monroe
is the coldest with average January lows of 20.5°F.
This page covers 45 years of NASA POWER climate data (1981–2025)
including temperature, rainfall, humidity, wind speed, and solar radiation.
Aug is typically the warmest month across Louisiana with average highs around
97.2°F, while
Jan is the coldest with average lows near
26.1°F.
Jun is the wettest month with approximately
156 mm of rainfall on average.
Month
Max Temp
Min Temp
Avg Temp
Rain (mm)
Humidity
Wind (m/s)
Solar (kWh/m²)
Jan
72.1°F
26.1°F
49.1°F
130
83%
2.1
2.80
Feb
75°F
29.7°F
52.3°F
120
84%
2.1
3.50
Mar
79.5°F
34.7°F
57.2°F
124
82%
2.1
4.60
Apr
84.2°F
43.5°F
63.9°F
126
80%
2.1
5.60
May
90.3°F
55.2°F
72.9°F
133
78%
1.8
6.10
Jun
95°F
66.6°F
80.8°F
156
76%
1.6
6.10
Jul
97.2°F
71.4°F
84.4°F
152
76%
1.4
5.90
Aug
97.2°F
69.6°F
83.5°F
149
75%
1.4
5.60
Sep
93.9°F
58.3°F
76.1°F
120
75%
1.6
5.10
Oct
88.2°F
45.1°F
66.7°F
105
76%
1.8
4.30
Nov
80.8°F
35.4°F
58.1°F
105
80%
1.9
3.20
Dec
75°F
28.8°F
51.8°F
130
84%
2.0
2.60
📈 Louisiana Yearly Climate Trends
🌡️ Annual Temperature Trend
State-wide avg annual high & low · Last 10 years
📈 Louisiana Long-Term Climate Trends (1981–2025)
This chart shows how Louisiana's average temperatures have shifted across 45 years.
Use the range buttons to focus on recent decades or view the full historical record.
Data is averaged across all 21 cities in the state.
🌧️ Annual Precipitation Trend
State-wide avg annual precipitation · Last 10 years · mm/year
🔗 Explore Cities in Louisiana
Browse detailed weather history, monthly averages, and 45-year climate trends for every city in Louisiana.
Mandeville is the wettest city in Louisiana with approximately 1602 mm of annual precipitation on average. View Mandeville weather history →
What is the warmest month in Louisiana?▼
Aug is the warmest month across Louisiana, with state-wide average highs of 97.2°F and average lows of 69.6°F.
How many cities in Louisiana have weather data?▼
TownPillar has historical weather data for 21 cities in Louisiana, covering 45 years of NASA POWER climate records from 1981 to 2025.
Which month has the most sunshine in Louisiana?▼
Jun is the sunniest month across Louisiana with an average solar radiation of 6.10 kWh/m²/day state-wide. This solar radiation data from NASA POWER is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability.
Where does this climate data come from?▼
All data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis data. It includes monthly temperature, precipitation, humidity, wind speed, and solar radiation at 0.5° × 0.625° spatial resolution.
📚 Data Source
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources). Data covers 45 years (1981–2025) across 21 cities in Louisiana at monthly temporal resolution.