Climate Comfort Score
77/100
Good
NOAA 1991–2020 normals 68°F annual avg Public-domain federal data
ST Martinville, LA Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 68°F
- Avg annual temp
- 77/100
- Comfort score
- 66.4"
- Annual precip
- 279d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for ST Martinville
ST Martinville, Louisiana averages 68°F a year and scores 77/100 on the comfort index - good, milder than 72% of U.S. cities.
- 68°F
- annual average temperature (NOAA normal)
- 77/100
- comfort score, milder than 72% of U.S. cities
- 66.4"
- annual precipitation
- 279 days
- growing season, frost-free days
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
68°F (20°C)
Avg High
78°F
Avg Low
58°F
Annual Precip
66.4"
Annual Snow
0.0"
Comfort Score
77/100
Good
Avg Annual Temperature
68°F
30-year mean (NOAA NCEI)
Annual Precipitation
66.4"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (ST Martinville) 77.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the ST Martinville area.
How ST Martinville compares to every U.S. city
ST Martinville's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
77 Top 28% higher than 72% of 6,915 US cities
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 ST Martinville
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. ST Martinville's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 62°F (16°C) | 42°F (5°C) | 52°F (11°C) | 6.2" | 0.0" | 5.8 | 0.0 |
| February | 65°F (18°C) | 46°F (8°C) | 55°F (13°C) | 4.5" | 0.0" | 3.0 | 0.0 |
| March | 71°F (22°C) | 52°F (11°C) | 62°F (16°C) | 3.7" | 0.0" | 0.9 | 0.0 |
| April | 78°F (25°C) | 58°F (14°C) | 68°F (20°C) | 5.3" | 0.0" | 0.1 | 0.0 |
| May | 84°F (29°C) | 66°F (19°C) | 75°F (24°C) | 5.0" | 0.0" | 0.0 | 4.7 |
| June | 89°F (32°C) | 71°F (22°C) | 80°F (27°C) | 8.4" | 0.0" | 0.0 | 14.4 |
| July | 91°F (33°C) | 73°F (23°C) | 82°F (28°C) | 6.8" | 0.0" | 0.0 | 20.5 |
| August | 91°F (33°C) | 73°F (23°C) | 82°F (28°C) | 6.4" | 0.0" | 0.0 | 21.4 |
| September | 88°F (31°C) | 68°F (20°C) | 78°F (26°C) | 5.8" | 0.0" | 0.0 | 11.3 |
| October | 80°F (27°C) | 58°F (14°C) | 69°F (21°C) | 4.6" | 0.0" | 0.0 | 1.1 |
| November | 71°F (22°C) | 49°F (9°C) | 60°F (15°C) | 5.0" | 0.0" | 1.0 | 0.1 |
| December | 63°F (17°C) | 44°F (6°C) | 53°F (12°C) | 4.7" | 0.0" | 5.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 6.2"
9.2 days with precipitation
February 4.5"
7.4 days with precipitation
March 3.7"
6.7 days with precipitation
April 5.3"
5.8 days with precipitation
May 5.0"
7.0 days with precipitation
June 8.4"
11.4 days with precipitation
July 6.8"
11.9 days with precipitation
August 6.4"
10.4 days with precipitation
September 5.8"
8.3 days with precipitation
October 4.6"
6.0 days with precipitation
November 5.0"
6.6 days with precipitation
December 4.7"
7.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 27
50% probability date
Last Spring Freeze
February 21
50% probability date
Growing Season
279 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,549
Higher = more heating needed
Cooling Degree Days
2,619
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What ST Martinville's climate means for you
ST Martinville runs 68°F a year - peaking in July, coldest in January.
- Gardeners get about 279 frost-free days, with the last spring freeze near February 21 - plan the planting calendar around it, not the regional average.
- Energy bills track 1,549 heating and 2,619 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: ST Martinville, LA
Based on station USC00168181 feeding NOAA's 1991–2020 climate normals, ST Martinville, Louisiana averages 68°F a year, ranging from a mean daily high of 78°F to a mean daily low of 58°F. July 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.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. ST Martinville sees about 66.4 inches of precipitation a year, with negligible snowfall. The frost-free season averages 279 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near February 21 and the first fall freeze near November 27. On the energy side, 1,549 heating degree days and 2,619 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, ST Martinville scores 77/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in ST Martinville, LA? ▼
The average annual temperature in ST Martinville, Louisiana is 68°F. The warmest month averages 91°F (33°C) and the coldest averages 42°F (5°C).
How much rain does ST Martinville get? ▼
ST Martinville receives 66.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for ST Martinville? ▼
ST Martinville has a climate comfort score of 77/100 (Good), milder than 72% of U.S. cities in the PlainClimate database.
When is the growing season in ST Martinville? ▼
ST Martinville has approximately 279 frost-free days per year, with the last spring freeze around February 21 and the first fall freeze around November 27.
How much energy does heating and cooling require in ST Martinville? ▼
ST Martinville has 1,549 heating degree days and 2,619 cooling degree days annually, a fairly balanced heating/cooling split. 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 ST Martinville climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00168181 near ST Martinville.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00168181. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.