Climate Comfort Score
87/100
Excellent
NOAA 1991–2020 normals 66°F annual avg Public-domain federal data
ST Joseph, LA Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 66°F
- Avg annual temp
- 87/100
- Comfort score
- 58.2"
- Annual precip
- 242d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for ST Joseph
ST Joseph, Louisiana averages 66°F a year and scores 87/100 on the comfort index - excellent, milder than 89% of U.S. cities.
- 66°F
- yearly average temperature, NOAA normal
- 87/100
- comfort score, milder than 89% of U.S. cities
- 58.2"
- precipitation, annual total
- 242 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
66°F (19°C)
Avg High
78°F
Avg Low
54°F
Annual Precip
58.2"
Annual Snow
0.0"
Comfort Score
87/100
Excellent
Avg Annual Temperature
66°F
30-year mean (NOAA NCEI)
Annual Precipitation
58.2"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (ST Joseph) 87.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the ST Joseph area.
How ST Joseph compares to every U.S. city
ST Joseph's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
87 Top 11% higher than 89% 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 Joseph
MethodologyZooming out from ST Joseph's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- 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 | 59°F (15°C) | 36°F (2°C) | 47°F (8°C) | 6.3" | 0.0" | 11.1 | 0.0 |
| February | 63°F (17°C) | 39°F (4°C) | 51°F (11°C) | 5.5" | 0.0" | 6.8 | 0.0 |
| March | 70°F (21°C) | 46°F (8°C) | 58°F (14°C) | 5.7" | 0.0" | 1.7 | 0.0 |
| April | 78°F (25°C) | 53°F (12°C) | 65°F (18°C) | 4.9" | 0.0" | 0.0 | 1.0 |
| May | 85°F (29°C) | 62°F (17°C) | 73°F (23°C) | 4.4" | 0.0" | 0.0 | 9.2 |
| June | 91°F (33°C) | 69°F (20°C) | 80°F (26°C) | 4.2" | 0.0" | 0.0 | 21.2 |
| July | 93°F (34°C) | 71°F (22°C) | 82°F (28°C) | 4.7" | 0.0" | 0.0 | 27.1 |
| August | 93°F (34°C) | 70°F (21°C) | 82°F (28°C) | 4.4" | 0.0" | 0.0 | 26.5 |
| September | 90°F (32°C) | 64°F (18°C) | 77°F (25°C) | 3.6" | 0.0" | 0.0 | 18.6 |
| October | 81°F (27°C) | 53°F (11°C) | 67°F (19°C) | 3.8" | 0.0" | 0.3 | 4.3 |
| November | 70°F (21°C) | 43°F (6°C) | 56°F (13°C) | 5.4" | 0.0" | 3.7 | 0.0 |
| December | 61°F (16°C) | 38°F (3°C) | 49°F (10°C) | 5.5" | 0.0" | 9.2 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 6.3"
9.6 days with precipitation
February 5.5"
8.8 days with precipitation
March 5.7"
8.9 days with precipitation
April 4.9"
6.9 days with precipitation
May 4.4"
7.4 days with precipitation
June 4.2"
8.7 days with precipitation
July 4.7"
8.7 days with precipitation
August 4.4"
7.9 days with precipitation
September 3.6"
6.1 days with precipitation
October 3.8"
6.1 days with precipitation
November 5.4"
6.5 days with precipitation
December 5.5"
8.8 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 10
50% probability date
Last Spring Freeze
March 13
50% probability date
Growing Season
242 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,171
Higher = more heating needed
Cooling Degree Days
2,398
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What ST Joseph's climate means for you
ST Joseph runs 66°F a year - peaking in July, coldest in January.
- Gardeners get about 242 frost-free days, with the last spring freeze near March 13 - plan the planting calendar around it, not the regional average.
- Energy bills track 2,171 heating and 2,398 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 Joseph, LA
The NOAA 1991–2020 climate normals describe ST Joseph, Louisiana as a location with an annual average temperature of 66°F, ranging from a mean daily high of 78°F to a mean daily low of 54°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00168163, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Beyond temperature, ST Joseph averages 58.2 inches of precipitation annually, with negligible snowfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 242 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 13 and the first fall freeze near November 10. Turning to energy use, 2,171 heating degree days and 2,398 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 Joseph scores 87/100 (Excellent), 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 Joseph, LA? ▼
The average annual temperature in ST Joseph, Louisiana is 66°F. The warmest month averages 93°F (34°C) and the coldest averages 36°F (2°C).
How much rain does ST Joseph get? ▼
ST Joseph receives 58.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for ST Joseph? ▼
ST Joseph has a climate comfort score of 87/100 (Excellent), milder than 89% of U.S. cities in the PlainClimate database.
When is the growing season in ST Joseph? ▼
ST Joseph has approximately 242 frost-free days per year, with the last spring freeze around March 13 and the first fall freeze around November 10.
How much energy does heating and cooling require in ST Joseph? ▼
ST Joseph has 2,171 heating degree days and 2,398 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 Joseph climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00168163 near ST Joseph.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00168163. 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.