PlainClimate
NOAA 1991–2020 normals 71°F annual avg Public-domain federal data

New Orleans, LA Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

71°F
Avg annual temp
80/100
Comfort score
63.4"
Annual precip
335d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for New Orleans

New Orleans, Louisiana averages 71°F a year and scores 80/100 on the comfort index - excellent, milder than 82% of U.S. cities.

71°F
average temperature, NOAA 1991-2020 normal
80/100
comfort score, milder than 82% of U.S. cities
63.4"
yearly precipitation total
335 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

71°F (21°C)

Avg High

79°F

Avg Low

63°F

Annual Precip

63.4"

Annual Snow

0.0"

Comfort Score

80/100

Excellent

Climate Comfort Score

80/100

Excellent

Avg Annual Temperature

71°F

30-year mean (NOAA NCEI)

Annual Precipitation

63.4"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (New Orleans) 80.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the New Orleans area.

How New Orleans compares to every U.S. city

New Orleans's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

80 Top 18% higher than 82% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). Below this entry. 80–90: 778 US cities (11%). This entry sits in this band. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for New Orleans

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For New Orleans, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 63°F (17°C) 46°F (8°C) 54°F (12°C)
February 66°F (19°C) 50°F (10°C) 58°F (14°C)
March 72°F (22°C) 55°F (13°C) 64°F (18°C)
April 79°F (26°C) 62°F (17°C) 70°F (21°C)
May 85°F (30°C) 69°F (21°C) 77°F (25°C)
June 90°F (32°C) 75°F (24°C) 82°F (28°C)
July 91°F (33°C) 77°F (25°C) 84°F (29°C)
August 91°F (33°C) 77°F (25°C) 84°F (29°C)
September 88°F (31°C) 74°F (23°C) 81°F (27°C)
October 81°F (27°C) 64°F (18°C) 73°F (23°C)
November 71°F (22°C) 54°F (12°C) 62°F (17°C)
December 65°F (18°C) 48°F (9°C) 57°F (14°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 5.2"

9.5 days with precipitation

February 4.1"

9.0 days with precipitation

March 4.4"

8.1 days with precipitation

April 5.2"

7.3 days with precipitation

May 5.6"

7.8 days with precipitation

June 7.6"

12.7 days with precipitation

July 6.8"

13.9 days with precipitation

August 6.9"

13.6 days with precipitation

September 5.1"

9.8 days with precipitation

October 3.7"

7.1 days with precipitation

November 3.9"

7.1 days with precipitation

December 4.8"

9.2 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

December 31

50% probability date

Last Spring Freeze

January 30

50% probability date

Growing Season

335 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

1,176

Higher = more heating needed

Cooling Degree Days

3,206

Higher = more cooling needed

Warmest Month

August

Coldest Month

January

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 71% 9.1
February 70% 9.5
March 72% 9.3
April 70% 9.1
May 74% 7.1
June 75% 6.1
July 75% 5.8
August 75% 6.6
September 70% 8.0
October 71% 8.0
November 73% 8.3
December 73% 9.1

What New Orleans's climate means for you

New Orleans runs 71°F a year - peaking in August, coldest in January.

  • Gardeners get about 335 frost-free days, with the last spring freeze near January 30 - plan the planting calendar around it, not the regional average.
  • Energy bills track 1,176 heating and 3,206 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: New Orleans, LA

Based on station USW00012916 feeding NOAA's 1991–2020 climate normals, New Orleans, Louisiana averages 71°F a year, ranging from a mean daily high of 79°F to a mean daily low of 63°F. August is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.

New Orleans averages 63.4 inches of precipitation a year, with negligible snowfall, and that matters as much to daily life here as temperature does. The frost-free season averages 335 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near January 30 and the first fall freeze near December 31. As for energy demand, 1,176 heating degree days and 3,206 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, New Orleans scores 80/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, August-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.

Frequently Asked Questions

What is the average temperature in New Orleans, LA?
The average annual temperature in New Orleans, Louisiana is 71°F. The warmest month averages 91°F (33°C) and the coldest averages 46°F (8°C).
How much rain does New Orleans get?
New Orleans receives 63.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for New Orleans?
New Orleans has a climate comfort score of 80/100 (Excellent), milder than 82% of U.S. cities in the PlainClimate database.
When is the growing season in New Orleans?
New Orleans has approximately 335 frost-free days per year, with the last spring freeze around January 30 and the first fall freeze around December 31.
How much energy does heating and cooling require in New Orleans?
New Orleans has 1,176 heating degree days and 3,206 cooling degree days annually, a cooling-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this New Orleans climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00012916 near New Orleans.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00012916. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.