St Joseph, LA Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from St Joseph's primary NOAA station, ST JOSEPH 3 N.
The climate verdict for St Joseph
Water is the standout signal in St Joseph, Louisiana: 58.2 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 66°F. It scores 87/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 87% of them.
- 66°F
- yearly average temperature, NOAA normal
- 87/100
- comfort score, above 87% of station-mapped location scores
- 58.2"
- precipitation, annual total
- 242 days
- frost-free days per growing season
St Joseph: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00168163 · St Joseph, LA 66°F mean · 58.2" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 66°F
- RANK-UPPER #6,106
- PHOTO-FINISH ≈ Athens
- PRCP-WET 58.2"
- SWING-MID 35°F
- COMF-TOP 87/100
- LOAD-MIX H/C balanced
- STN-1 USC00168163
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Athens, TX (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every LA station list.
- St Joseph (this station) 66°F
- Hot Bunkerville, NV 66°F
- Near Athens, TX 66°F
- Near Blanco, TX 66°F
- Near Brewton, AL 66°F
St Joseph sits in Louisiana, the #3 hottest U.S. state at 67.3°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · St Joseph
St Joseph: 74/100 · grade B
St Joseph publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for St Joseph, not an official NOAA rating. Rankings still use Comfort Score 87/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 65.5°F · 2.0° from 67.5°F | 93/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Frost-free season | 242 days/year | 86/100 · A |
| Normal heat + freeze calendar | 96 calendar days | 77/100 · B |
| Precipitation balance | 58.2 in · 23.2 from 35 in | 18/100 · F |
St Joseph · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
St Joseph is a temperate Köppen climate: Cfa
Coldest-month mean 47.0°F and warmest-month mean 81.9°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 81.9°F
- Coldest month
- 47.0°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · balanced station
Where St Joseph sits across the climate record
Three NOAA fields for St Joseph's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 11% warmest
- Among 6,861 stations, St Joseph sits in the warmer third of annual means.
- Annual precipitation
- Top 7% wettest
- St Joseph's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 82%
- Warmest-to-coldest month gap for St Joseph is compact versus 6,861 complete station-years.
How St Joseph compares across U.S. station-mapped locations
St Joseph's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
87 Top 13% score exceeds 87% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
St Joseph's measured station temperature trend
MethodologyAcross 75 complete annual observations from 1909 to 2022, ST JOSEPH 3 N warmed at a fitted rate of 0.05°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- St Joseph primary station fitted change +0.05 °C/decade
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 |
The year, day by day
The year in St Joseph runs from a mild 35°F around January 12 to 94°F at the peak near July 29, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 11 through September 14, covering 96 dates. The broader mild season, normal highs of 70°F or more, runs March 15 to November 14.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 35°F around January 12.
Where the wet dates fall
The likeliest wet date is February 22, when 32% of years recorded at least a hundredth of an inch. The driest is October 1 at 18%. Summed across the calendar, that is about 95 wet dates a year.
The widest day
October 24 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for St Joseph.
Where St Joseph Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 96 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
This is one of the wettest normals climates ranked: about 58 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
St Joseph earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
9.6 days with precipitation
8.8 days with precipitation
8.9 days with precipitation
6.9 days with precipitation
7.4 days with precipitation
8.7 days with precipitation
8.7 days with precipitation
7.9 days with precipitation
6.1 days with precipitation
6.1 days with precipitation
6.5 days with precipitation
8.8 days with precipitation
St Joseph spreads its precipitation across the year
Neither half of the year dominates here: June through August take 23% of the annual total and December through February 30%, with neither reaching the 35% that would mark a distinct wet season. St Joseph has no dry season to plan around, though it does carry a 34.9°F seasonal spread.
The gap between the wettest and driest month still matters: January averages 6.3" and September 3.6". The three wettest months together take 30% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in St Joseph, it arrives in quantity
58.2" of precipitation falls across only about 94 wet days here, averaging 0.62 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 94 a year, 26% of all days
- Average depth per wet day
- 0.62 inches
- Most wet days
- January, about 10
- Fewest wet days
- September, about 6
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
St Joseph's record shows no measurable snowfall
This station measured snowfall across the 1991-2020 period and recorded none: the annual normal is 0.0 inches. That is a measured zero rather than missing data, which is a meaningful distinction here , most stations in the database simply do not report snow at all, and those pages say nothing about it.
A thirty-year normal of zero describes the typical year at this station. It is not a claim that snow has never fallen in the area.
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
Nationwide similar cities
Other rankable U.S. places outside LA closest to St Joseph on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (66°F here).
- Athens, TX 66°F · 0.0°F off
- Blanco, TX 66°F · 0.0°F off
- Brewton, AL 66°F · 0.0°F off
- Bunkerville, NV 66°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (58.2" here), excluding temperature-peer places.
- Newton, MS 58.2" · 0.0" off
- Gatlinburg, TN 58.2" · 0.0" off
- Boonville, NY 58.2" · 0.1" off
- Ocracoke, NC 58.3" · 0.1" off
Data-derived climate profile
How St Joseph's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. St Joseph averages 58.2 inches of precipitation a year. Recorded annual snowfall is negligible. The monthly table supplies the seasonal distribution hidden by that annual total.
July and January mark the typical warm and cold ends of the calendar in St Joseph's middle-range seasonal profile. The measured spread is 34.9°F. The annual average is 66°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in St Joseph's normal, at 2,171 and 2,398 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
The frost-free window extends for about 242 days. That is a long calendar measure, but it is not a forecast and does not combine heat, rainfall, soil, or local elevation into a planting recommendation.
These labels group NOAA 1991-2020 normals from St Joseph's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like St Joseph, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about St Joseph's climate
How much rain does St Joseph get? ▼
How many days above 90°F does St Joseph get? ▼
How much energy does heating and cooling require in St Joseph? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from St Joseph's primary station: ST JOSEPH 3 N (USC00168163). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 2267495). Match rule for St Joseph: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for St Joseph comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.