Baton Rouge Ryan, 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 Baton Rouge Ryan's primary NOAA station, BATON ROUGE RYAN AP.
The climate verdict for Baton Rouge Ryan
Water is the standout signal in Baton Rouge Ryan, Louisiana: 61.9 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 69°F. It scores 77/100 for climate comfort (good), putting it in the top third of station-mapped location scores and exceeding 70% of them.
- 69°F
- annual average temperature (NOAA normal)
- 77/100
- comfort score, above 70% of station-mapped location scores
- 61.9"
- annual precipitation
- 274 days
- growing season, frost-free days
Baton Rouge Ryan: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00013970 · Baton Rouge Ryan, LA 69°F mean · 61.9" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 69°F
- RANK-WARM #6,449
- PHOTO-FINISH ≈ Biloxi
- PRCP-WET 61.9"
- SWING-MID 31°F
- COMF-TOP 77/100
- LOAD-MIX H/C balanced
- STN-1 USW00013970
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Biloxi, MS (+ 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.
- Baton Rouge Ryan (this station) 69°F
- Hot Smithville, TX 69°F
- Near Biloxi, MS 69°F
- Near Jackson Whiteho…, FL 69°F
- Near Sam Rayburn Dam, TX 69°F
Baton Rouge Ryan 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 · Baton Rouge Ryan
Baton Rouge Ryan: 74/100 · grade B
Baton Rouge Ryan publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Baton Rouge Ryan, not an official NOAA rating. Rankings still use Comfort Score 77/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 274 days/year | 96/100 · A |
| Annual temperature balance | 68.5°F · 1.0° from 67.5°F | 95/100 · A |
| Snowfall burden | 0.2 inches/year | 89/100 · A |
| Normal heat + freeze calendar | 93 calendar days | 78/100 · B |
| Precipitation balance | 61.9 in · 26.9 from 35 in | 7/100 · F |
Baton Rouge Ryan · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Baton Rouge Ryan is a temperate Köppen climate: Cfa
Coldest-month mean 52.0°F and warmest-month mean 82.9°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
- 82.9°F
- Coldest month
- 52.0°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 Baton Rouge Ryan sits across the climate record
Three NOAA fields for Baton Rouge Ryan's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 6% warmest
- Among 6,861 stations, Baton Rouge Ryan sits in the warmer third of annual means.
- Annual precipitation
- Top 4% wettest
- Baton Rouge Ryan's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 89%
- Warmest-to-coldest month gap for Baton Rouge Ryan is compact versus 6,861 complete station-years.
How Baton Rouge Ryan compares across U.S. station-mapped locations
Baton Rouge Ryan's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
77 Top 30% score exceeds 70% 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%). This entry sits in this band.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Baton Rouge Ryan's measured station temperature trend
MethodologyAcross 103 complete annual observations from 1890 to 2022, BATON ROUGE RYAN AP changed little at a fitted rate of 0.02°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Baton Rouge Ryan primary station fitted change +0.02 °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 | 62°F (17°C) | 42°F (5°C) | 52°F (11°C) | 6.4" | 0.0" | 7.0 | 0.0 |
| February | 67°F (19°C) | 45°F (7°C) | 56°F (13°C) | 4.4" | 0.0" | 3.4 | 0.0 |
| March | 73°F (23°C) | 51°F (11°C) | 62°F (17°C) | 4.5" | 0.0" | 0.8 | 0.0 |
| April | 79°F (26°C) | 57°F (14°C) | 68°F (20°C) | 5.1" | 0.0" | 0.0 | 0.3 |
| May | 86°F (30°C) | 65°F (18°C) | 76°F (24°C) | 5.2" | 0.0" | 0.0 | 8.2 |
| June | 91°F (33°C) | 72°F (22°C) | 81°F (27°C) | 6.5" | 0.0" | 0.0 | 20.0 |
| July | 92°F (33°C) | 74°F (23°C) | 83°F (28°C) | 5.1" | 0.0" | 0.0 | 24.7 |
| August | 92°F (33°C) | 73°F (23°C) | 83°F (28°C) | 6.4" | 0.0" | 0.0 | 24.8 |
| September | 89°F (32°C) | 69°F (21°C) | 79°F (26°C) | 4.4" | 0.0" | 0.0 | 15.8 |
| October | 81°F (27°C) | 58°F (15°C) | 70°F (21°C) | 4.8" | 0.0" | 0.0 | 2.6 |
| November | 71°F (22°C) | 48°F (9°C) | 59°F (15°C) | 3.9" | 0.0" | 1.7 | 0.0 |
| December | 64°F (18°C) | 43°F (6°C) | 54°F (12°C) | 5.3" | 0.2" | 5.4 | 0.0 |
The year, day by day
The year in Baton Rouge Ryan runs from a mild 41°F around January 9 to 93°F at the peak near August 3, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 8 through September 8, covering 93 dates. The broader mild season, normal highs of 70°F or more, runs March 2 to November 18.
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 41°F around January 9.
Where the wet dates fall
The likeliest wet date is July 7, when 42% of years recorded at least a hundredth of an inch. The driest is October 16 at 24%. Summed across the calendar, that is about 114 wet dates a year.
The widest day
October 30 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Baton Rouge Ryan.
Where Baton Rouge Ryan Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 93 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 62 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Baton Rouge Ryan 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
9.9 days with precipitation
8.9 days with precipitation
8.9 days with precipitation
8.0 days with precipitation
8.2 days with precipitation
11.6 days with precipitation
13.2 days with precipitation
11.8 days with precipitation
8.6 days with precipitation
7.3 days with precipitation
8.0 days with precipitation
Snow: 0.2"
9.7 days with precipitation
Baton Rouge Ryan spreads its precipitation across the year
Neither half of the year dominates here: June through August take 29% of the annual total and December through February 26%, with neither reaching the 35% that would mark a distinct wet season. Baton Rouge Ryan has no dry season to plan around, though it does carry a 30.9°F seasonal spread.
The gap between the wettest and driest month still matters: June averages 6.5" and November 3.9". The three wettest months together take 31% 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 Baton Rouge Ryan, it arrives in quantity
61.9" of precipitation falls across only about 114 wet days here, averaging 0.54 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 114 a year, 31% of all days
- Average depth per wet day
- 0.54 inches
- Most wet days
- July, about 13
- Fewest wet days
- October, about 7
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.
Snow reaches Baton Rouge Ryan, but rarely amounts to much
The normals record 0.2 inches of snow a year here, most likely in December. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 0 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
November 26
50% probability date
Last Spring Freeze
February 25
50% probability date
Growing Season
274 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,534
Higher = more heating needed
Cooling Degree Days
2,818
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside LA closest to Baton Rouge Ryan 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 (69°F here).
- Biloxi, MS 69°F · 0.0°F off
- Smithville, TX 69°F · 0.0°F off
- Green Valley, AZ 68°F · 0.1°F off
- Livingston, TX 69°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (61.9" here), excluding temperature-peer places.
- Columbia, MS 61.9" · 0.1" off
- Henderson, TN 61.8" · 0.1" off
- Meadville, MS 61.8" · 0.1" off
- Clarkesville, GA 61.8" · 0.1" off
Data-derived climate profile
How Baton Rouge Ryan's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Baton Rouge Ryan averages 61.9 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 Baton Rouge Ryan's middle-range seasonal profile. The measured spread is 30.9°F. The annual average is 69°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Baton Rouge Ryan's normal, at 1,534 and 2,818 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 274 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 Baton Rouge Ryan'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 Baton Rouge Ryan, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Baton Rouge Ryan's climate
How much rain does Baton Rouge Ryan get? ▼
How many days above 90°F does Baton Rouge Ryan get? ▼
How much energy does heating and cooling require in Baton Rouge Ryan? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Baton Rouge Ryan's primary station: BATON ROUGE RYAN AP (USW00013970). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Baton Rouge Ryan; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Baton Rouge Ryan 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.