Hammond, 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 Hammond's primary NOAA station, HAMMOND 5 E.
The climate verdict for Hammond
Water is the standout signal in Hammond, Louisiana: 64.2 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 67°F. Its climate comfort score of 73/100 (good) lands mid-pack nationally, exceeding 66% of station-mapped location scores.
- 67°F
- average temperature, NOAA 1991-2020 normal
- 73/100
- comfort score, above 66% of station-mapped location scores
- 64.2"
- annual precipitation
- 256 days
- frost-free days per growing season
Hammond: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00164030 · Hammond, LA 67°F mean · 64.2" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-MID · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 67°F
- RANK-WARM #6,312
- PHOTO-FINISH ≈ Arlington
- PRCP-WET 64.2"
- SWING-MID 32°F
- COMF-MID 73/100
- LOAD-MIX H/C balanced
- STN-1 USC00164030
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Arlington, 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.
- Hammond (this station) 67°F
- Hot Miami, AZ 67°F
- Near Arlington, TX 67°F
- Near Headland, AL 67°F
- Near Metter, GA 67°F
Hammond 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 · Hammond
Hammond: 72/100 · grade B
Hammond publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Hammond, not an official NOAA rating. Rankings still use Comfort Score 73/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 66.8°F · 0.7° from 67.5°F | 96/100 · A |
| Frost-free season | 256 days/year | 91/100 · A |
| Normal heat + freeze calendar | 82 calendar days | 82/100 · B |
| Precipitation balance | 64.2 in · 29.2 from 35 in | 3/100 · F |
Hammond · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Hammond is a temperate Köppen climate: Cfa
Coldest-month mean 49.9°F and warmest-month mean 81.5°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
- 81.5°F
- Coldest month
- 49.9°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 · balanced station
Where Hammond sits across the climate record
Three NOAA fields for Hammond's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 8% warmest
- Among 6,861 stations, Hammond sits in the warmer third of annual means.
- Annual precipitation
- Top 3% wettest
- Hammond's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 88%
- Warmest-to-coldest month gap for Hammond is compact versus 6,861 complete station-years.
How Hammond compares across U.S. station-mapped locations
Hammond's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
73 Top 34% score exceeds 66% 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 62°F (16°C) | 38°F (3°C) | 50°F (10°C) | 5.8" | 10.0 | 0.0 |
| February | 65°F (18°C) | 42°F (5°C) | 54°F (12°C) | 4.6" | 6.1 | 0.0 |
| March | 72°F (22°C) | 49°F (9°C) | 60°F (16°C) | 5.3" | 2.3 | 0.0 |
| April | 78°F (25°C) | 55°F (13°C) | 66°F (19°C) | 5.6" | 0.0 | 0.2 |
| May | 85°F (29°C) | 63°F (17°C) | 74°F (23°C) | 5.4" | 0.0 | 4.4 |
| June | 90°F (32°C) | 69°F (21°C) | 79°F (26°C) | 6.7" | 0.0 | 18.1 |
| July | 92°F (33°C) | 72°F (22°C) | 82°F (28°C) | 6.8" | 0.0 | 23.2 |
| August | 92°F (33°C) | 71°F (22°C) | 81°F (27°C) | 5.6" | 0.0 | 24.3 |
| September | 88°F (31°C) | 67°F (19°C) | 78°F (25°C) | 4.4" | 0.0 | 13.9 |
| October | 81°F (27°C) | 56°F (13°C) | 68°F (20°C) | 4.1" | 0.2 | 1.8 |
| November | 70°F (21°C) | 46°F (8°C) | 58°F (14°C) | 4.2" | 3.4 | 0.0 |
| December | 64°F (18°C) | 41°F (5°C) | 52°F (11°C) | 5.9" | 9.3 | 0.0 |
The year, day by day
The year in Hammond runs from a mild 38°F around January 12 to 92°F at the peak near August 5, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 15 through September 4, covering 82 dates. The broader mild season, normal highs of 70°F or more, runs March 9 to November 16.
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 38°F around January 12.
Where the wet dates fall
The likeliest wet date is July 7, when 46% of years recorded at least a hundredth of an inch. The driest is October 18 at 22%. Summed across the calendar, that is about 116 wet dates a year.
The widest day
October 26 carries the biggest normal gap between afternoon and dawn, 26°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Hammond.
Where Hammond Stands Nationally
This is one of the wettest normals climates ranked: about 64 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 82 days a year, more than four out of five ranked stations record.
Hammond earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
11.2 days with precipitation
9.4 days with precipitation
8.3 days with precipitation
7.3 days with precipitation
8.2 days with precipitation
12.8 days with precipitation
13.7 days with precipitation
12.0 days with precipitation
9.3 days with precipitation
6.7 days with precipitation
8.2 days with precipitation
9.1 days with precipitation
Hammond spreads its precipitation across the year
Neither half of the year dominates here: June through August take 30% of the annual total and December through February 25%, with neither reaching the 35% that would mark a distinct wet season. Hammond has no dry season to plan around, though it does carry a 31.6°F seasonal spread.
The gap between the wettest and driest month still matters: July averages 6.8" and October 4.1". 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 Hammond, it arrives in quantity
64.2" of precipitation falls across only about 116 wet days here, averaging 0.55 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 116 a year, 32% of all days
- Average depth per wet day
- 0.55 inches
- Most wet days
- July, about 14
- 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.
Frost Dates & Growing Season
First Fall Freeze
November 19
50% probability date
Last Spring Freeze
March 8
50% probability date
Growing Season
256 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,797
Higher = more heating needed
Cooling Degree Days
2,467
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside LA closest to Hammond 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 (67°F here).
- Arlington, TX 67°F · 0.0°F off
- Headland, AL 67°F · 0.0°F off
- Metter, GA 67°F · 0.0°F off
- Miami, AZ 67°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (64.2" here), excluding temperature-peer places.
- Port Salerno, FL 64.2" · 0.0" off
- Winfield, AL 64.1" · 0.1" off
- Sewanee, TN 64.0" · 0.1" off
- Monterey, TN 64.3" · 0.2" off
Data-derived climate profile
How Hammond's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Hammond averages 64.2 inches of precipitation a year. Snowfall is not added to the interpretation because its annual value is missing. 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 Hammond's middle-range seasonal profile. The measured spread is 31.6°F. The annual average is 67°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Hammond's normal, at 1,797 and 2,467 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 256 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 Hammond'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 Hammond, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Hammond's climate
How much rain does Hammond get? ▼
How many days above 90°F does Hammond get? ▼
How much energy does heating and cooling require in Hammond? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Hammond's primary station: HAMMOND 5 E (USC00164030). 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 2232755). Match rule for Hammond: 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 Hammond 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.