Meridian Key Fld, MS 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 Meridian Key Fld's primary NOAA station, MERIDIAN KEY FLD.
The climate verdict for Meridian Key Fld
Water is the standout signal in Meridian Key Fld, Mississippi: 57.0 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
- 57.0"
- annual precipitation · 1" snow
- 241 days
- frost-free growing season
Meridian Key Fld: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00013865 · Meridian Key Fld, MS 66°F mean · 57.0" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 66°F
- RANK-WARM #6,175
- PHOTO-FINISH ≈ Coalinga
- PRCP-WET 57.0"
- SWING-MID 35°F
- COMF-TOP 87/100
- LOAD-MIX H/C balanced
- STN-1 USW00013865
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Coalinga, CA (+ 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 MS station list.
- Meridian Key Fld (this station) 66°F
- Hot Navarro Mills D…, TX 66°F
- Near Coalinga, CA 66°F
- Near Fort Worth Meac…, TX 66°F
- Near Meridian Naas, MS 66°F
Meridian Key Fld sits in Mississippi, the #5 hottest U.S. state at 64.1°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · Meridian Key Fld
Meridian Key Fld: 65/100 · grade C
Meridian Key Fld publishes all six Living Index dimensions from NOAA annual/seasonal normals · NOAA daily multivariate normals · NOAA hourly normals.
PlainClimate-derived for Meridian Key Fld, not an official NOAA rating. Rankings still use Comfort Score 87/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 65.9°F · 1.6° from 67.5°F | 94/100 · A |
| Snowfall burden | 0.6 inches/year | 86/100 · A |
| Frost-free season | 241 days/year | 85/100 · A |
| Normal heat + freeze calendar | 97 calendar days | 77/100 · B |
| Precipitation balance | 57.0 in · 22.0 from 35 in | 21/100 · F |
| Summer moisture balance | 70.3°F mean dew point | 13/100 · F |
Meridian Key Fld · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Meridian Key Fld is a temperate Köppen climate: Cfa
Coldest-month mean 47.7°F and warmest-month mean 82.7°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
- 82.7°F
- Coldest month
- 47.7°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 Meridian Key Fld sits across the climate record
Three NOAA fields for Meridian Key Fld's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 10% warmest
- Among 6,861 stations, Meridian Key Fld sits in the warmer third of annual means.
- Annual precipitation
- Top 8% wettest
- Meridian Key Fld'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 Meridian Key Fld is compact versus 6,861 complete station-years.
How Meridian Key Fld compares across U.S. station-mapped locations
Meridian Key Fld'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
Meridian Key Fld's measured station temperature trend
MethodologyAcross 125 complete annual observations from 1890 to 2025, MERIDIAN KEY FLD 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.
- Meridian Key Fld 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 | 59°F (15°C) | 36°F (2°C) | 48°F (9°C) | 5.6" | 0.2" | 14.4 | 0.0 |
| February | 64°F (18°C) | 40°F (4°C) | 52°F (11°C) | 5.3" | 0.0" | 9.5 | 0.0 |
| March | 71°F (22°C) | 46°F (8°C) | 59°F (15°C) | 5.7" | 0.3" | 3.9 | 0.0 |
| April | 78°F (26°C) | 53°F (11°C) | 65°F (19°C) | 5.6" | 0.0" | 0.3 | 0.2 |
| May | 85°F (30°C) | 61°F (16°C) | 73°F (23°C) | 4.2" | 0.0" | 0.0 | 5.6 |
| June | 91°F (33°C) | 69°F (21°C) | 80°F (27°C) | 4.6" | 0.0" | 0.0 | 18.0 |
| July | 93°F (34°C) | 72°F (22°C) | 83°F (28°C) | 5.1" | 0.0" | 0.0 | 24.1 |
| August | 93°F (34°C) | 71°F (22°C) | 82°F (28°C) | 4.4" | 0.0" | 0.0 | 23.2 |
| September | 89°F (32°C) | 66°F (19°C) | 77°F (25°C) | 3.2" | 0.0" | 0.0 | 13.4 |
| October | 80°F (26°C) | 54°F (12°C) | 67°F (19°C) | 3.9" | 0.0" | 0.5 | 1.9 |
| November | 69°F (20°C) | 43°F (6°C) | 56°F (13°C) | 4.2" | 0.0" | 6.8 | 0.0 |
| December | 61°F (16°C) | 39°F (4°C) | 50°F (10°C) | 5.3" | 0.1" | 12.9 | 0.0 |
The year, day by day
The year in Meridian Key Fld runs from a mild 36°F around January 13 to 94°F at the peak near July 25, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 7 through September 11, covering 97 dates. The broader mild season, normal highs of 70°F or more, runs March 11 to November 11.
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 36°F around January 13.
Where the wet dates fall
The likeliest wet date is July 12, when 38% of years recorded at least a hundredth of an inch. The driest is September 30 at 22%. Summed across the calendar, that is about 113 wet dates a year.
The widest day
November 1 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Meridian Key Fld.
Where Meridian Key Fld Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 97 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 57 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Meridian Key Fld 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
Snow: 0.2"
9.9 days with precipitation
10.4 days with precipitation
Snow: 0.3"
10.0 days with precipitation
8.7 days with precipitation
9.1 days with precipitation
10.7 days with precipitation
11.9 days with precipitation
9.9 days with precipitation
7.0 days with precipitation
6.8 days with precipitation
8.3 days with precipitation
Snow: 0.1"
10.4 days with precipitation
Meridian Key Fld spreads its precipitation across the year
Neither half of the year dominates here: June through August take 25% of the annual total and December through February 28%, with neither reaching the 35% that would mark a distinct wet season. Meridian Key Fld has no dry season to plan around, though it does carry a 35°F seasonal spread.
The gap between the wettest and driest month still matters: March averages 5.7" and September 3.2". 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 Meridian Key Fld, it arrives in quantity
57.0" of precipitation falls across only about 113 wet days here, averaging 0.50 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 113 a year, 31% of all days
- Average depth per wet day
- 0.50 inches
- Most wet days
- July, about 12
- 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 Meridian Key Fld, but rarely amounts to much
The normals record 0.6 inches of snow a year here, most likely in March. 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 1 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 12
50% probability date
Last Spring Freeze
March 16
50% probability date
Growing Season
241 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,115
Higher = more heating needed
Cooling Degree Days
2,478
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 71% | 6.7 | 51% | 35% |
| February | 69% | 7.5 | 47% | 34% |
| March | 69% | 7.1 | 51% | 26% |
| April | 72% | 6.3 | 53% | 19% |
| May | 74% | 5.2 | 50% | 15% |
| June | 75% | 4.6 | 56% | 10% |
| July | 76% | 4.3 | 59% | 8% |
| August | 75% | 4.6 | 58% | 11% |
| September | 74% | 5.2 | 64% | 14% |
| October | 75% | 5.2 | 60% | 22% |
| November | 75% | 5.7 | 55% | 28% |
| December | 75% | 6.5 | 48% | 36% |
Nationwide similar cities
Other rankable U.S. places outside MS closest to Meridian Key Fld 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).
- Coalinga, CA 66°F · 0.0°F off
- Albany, GA 66°F · 0.1°F off
- Camilla, GA 66°F · 0.1°F off
- Fairhope, AL 66°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (57.0" here), excluding temperature-peer places.
- Chickamauga, GA 57.0" · 0.0" off
- Alexander City, AL 57.0" · 0.0" off
- Centreville, AL 57.0" · 0.0" off
- Homer, LA 57.0" · 0.0" off
Data-derived climate profile
How Meridian Key Fld's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Meridian Key Fld averages 57.0 inches of precipitation a year. Annual snowfall totals 0.6 inches. 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 Meridian Key Fld's middle-range seasonal profile. The measured spread is 35.0°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 Meridian Key Fld's normal, at 2,115 and 2,478 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 241 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 Meridian Key Fld'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 Meridian Key Fld, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Meridian Key Fld's climate
How much rain does Meridian Key Fld get? ▼
How many days above 90°F does Meridian Key Fld get? ▼
How much energy does heating and cooling require in Meridian Key Fld? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Meridian Key Fld's primary station: MERIDIAN KEY FLD (USW00013865). 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 Meridian Key Fld; 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 Meridian Key Fld 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.