Terrytown, LA Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Terrytown's primary NOAA station, TERRYTOWN 3S.
The climate verdict for Terrytown
Warm-season cooling demand defines Terrytown, Louisiana, running at more than twice its heating total. The NOAA normal records an annual average of 70°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 70°F
- average temperature, NOAA 1991-2020 normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 65.9"
- annual precipitation
- 333 days
- growing season, frost-free days
Terrytown: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00168941 · Terrytown, LA 70°F mean · 65.9" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 70°F
- RANK-WARM #6,518
- PHOTO-FINISH ≈ Port Aransas
- PRCP-WET 65.9"
- SWING-MID 30°F
- COMF-TOP 80/100
- LOAD-COOL 3,150 CDD
- STN-1 USC00168941
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Port Aransas, TX ( -0.1 °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.
- Hot Welder Wildlife…, TX 71°F
- Terrytown (this station) 70°F
- Cold Victoria Fire D…, TX 70°F
- Near Port Aransas, TX 70°F
- Near Thibodaux, LA 70°F
Terrytown 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 · Terrytown
Terrytown: 73/100 · grade B
Terrytown publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Terrytown, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 333 days/year | 100/100 · A |
| Annual temperature balance | 70.3°F · 2.8° from 67.5°F | 91/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Normal heat + freeze calendar | 86 calendar days | 80/100 · B |
| Precipitation balance | 65.9 in · 30.9 from 35 in | 0/100 · F |
Terrytown · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Terrytown is a temperate Köppen climate: Cfa
Coldest-month mean 53.9°F and warmest-month mean 84.1°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
- 84.1°F
- Coldest month
- 53.9°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 · cooling-led station
Where Terrytown sits across the climate record
Three NOAA fields for Terrytown's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 5% warmest
- Among 6,861 stations, Terrytown sits in the warmer third of annual means.
- Annual precipitation
- Top 3% wettest
- Terrytown's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 90%
- Warmest-to-coldest month gap for Terrytown is compact versus 6,861 complete station-years.
How Terrytown compares across U.S. station-mapped locations
Terrytown's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 63°F (17°C) | 45°F (7°C) | 54°F (12°C) | 5.8" | 0.0" | 3.8 | 0.0 |
| February | 66°F (19°C) | 49°F (9°C) | 57°F (14°C) | 4.0" | 0.0" | 1.1 | 0.0 |
| March | 73°F (23°C) | 54°F (12°C) | 63°F (17°C) | 5.2" | 0.0" | 0.4 | 0.0 |
| April | 78°F (26°C) | 61°F (16°C) | 70°F (21°C) | 5.2" | 0.0" | 0.0 | 0.2 |
| May | 85°F (30°C) | 68°F (20°C) | 77°F (25°C) | 4.7" | 0.0" | 0.0 | 5.2 |
| June | 90°F (32°C) | 75°F (24°C) | 82°F (28°C) | 6.9" | 0.0" | 0.0 | 19.5 |
| July | 92°F (33°C) | 76°F (25°C) | 84°F (29°C) | 7.3" | 0.0" | 0.0 | 25.4 |
| August | 92°F (33°C) | 76°F (25°C) | 84°F (29°C) | 6.8" | 0.0" | 0.0 | 23.6 |
| September | 89°F (32°C) | 73°F (23°C) | 81°F (27°C) | 6.8" | 0.0" | 0.0 | 14.4 |
| October | 81°F (27°C) | 63°F (17°C) | 72°F (22°C) | 3.7" | 0.0" | 0.0 | 1.8 |
| November | 72°F (22°C) | 53°F (12°C) | 62°F (17°C) | 4.2" | 0.0" | 0.2 | 0.0 |
| December | 65°F (18°C) | 48°F (9°C) | 56°F (14°C) | 5.4" | 0.0" | 1.4 | 0.0 |
The year, day by day
The year in Terrytown runs from a mild 45°F around January 10 to 93°F at the peak near July 31, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 14 through September 7, covering 86 dates. The broader mild season, normal highs of 70°F or more, runs March 3 to November 21.
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 45°F around January 10.
Where the wet dates fall
The likeliest wet date is August 10, when 49% of years recorded at least a hundredth of an inch. The driest is May 6 at 19%. Summed across the calendar, that is about 112 wet dates a year.
The widest day
November 4 carries the biggest normal gap between afternoon and dawn, 19°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Terrytown.
Where Terrytown Stands Nationally
This is one of the wettest normals climates ranked: about 66 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 19°F.
Terrytown 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
9.0 days with precipitation
8.1 days with precipitation
7.1 days with precipitation
6.5 days with precipitation
6.1 days with precipitation
12.2 days with precipitation
14.7 days with precipitation
14.8 days with precipitation
10.7 days with precipitation
6.6 days with precipitation
6.8 days with precipitation
8.8 days with precipitation
Terrytown spreads its precipitation across the year
Neither half of the year dominates here: June through August take 32% of the annual total and December through February 23%, with neither reaching the 35% that would mark a distinct wet season. Terrytown has no dry season to plan around, though it does carry a 30.2°F seasonal spread.
The gap between the wettest and driest month still matters: July averages 7.3" and October 3.7". The three wettest months together take 32% 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 Terrytown, it arrives in quantity
65.9" of precipitation falls across only about 111 wet days here, averaging 0.59 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 111 a year, 31% of all days
- Average depth per wet day
- 0.59 inches
- Most wet days
- August, about 15
- Fewest wet days
- May, 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.
Terrytown'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
December 31
50% probability date
Last Spring Freeze
February 1
50% probability date
Growing Season
333 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,206
Higher = more heating needed
Cooling Degree Days
3,150
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside LA closest to Terrytown 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 (70°F here).
- Baker, CA 70°F · 0.0°F off
- Deland, FL 70°F · 0.0°F off
- Folkston, GA 70°F · 0.0°F off
- Pleasanton, TX 70°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (65.9" here), excluding temperature-peer places.
- Palm Beach Gardens, FL 66.0" · 0.1" off
- Hoonah, AK 65.8" · 0.1" off
- Haleyville, AL 66.1" · 0.2" off
- Fairhope, AL 65.8" · 0.2" off
Data-derived climate profile
How Terrytown's climate pattern fits together
cooling led · wet · mid swing
Air-conditioning demand is the clearest thermal signal here. Terrytown accumulates 3,150 cooling degree days, more than twice its 1,206 heating total; the monthly table shows when that imbalance builds rather than treating it as a year-round condition.
Warm-season demand is paired with a wet annual normal: 65.9 inches of precipitation at Terrytown. Recorded annual snowfall is negligible. The month-by-month bars distinguish a concentrated wet season from moisture spread across the calendar.
July and January mark the typical warm and cold ends of the calendar in Terrytown's middle-range seasonal profile. The measured spread is 30.2°F. The annual average is 70°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
With about 333 frost-free days, the calendar is constrained more by sustained heat than by freeze timing. This does not measure crop suitability or soil moisture; it only reports the NOAA-derived frost-free window for Terrytown.
These labels group NOAA 1991-2020 normals from Terrytown's primary station, so the summer figures are a thirty-year average rather than a ceiling: individual years have run hotter and will again. For Terrytown that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Terrytown's climate
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Terrytown's primary station: TERRYTOWN 3S (USC00168941). 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 a census-designated place (GEOID 2275180), not an incorporated municipality. Match rule for Terrytown: 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 Terrytown 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.