Fort Pierce St Lucie County, FL Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
- Warmer national band · Avg annual temp
- 73°FAnnual mean temperature: 73.1°F. National station-mapped location corpus median: 52.2°F across 6,861 measured records.
- Wetter national band · Annual precip
- 51.2"Annual precipitation: 51.2 inches. National station-mapped location corpus median: 36.2 inches across 6,352 measured records.
30-year climate normals (1991-2020) from Fort Pierce St Lucie County's primary NOAA station, FT PIERCE ST LUCIE CO INTL AP.
The climate verdict for Fort Pierce St Lucie County
Warm-season cooling demand defines Fort Pierce St Lucie County, Florida, running at more than twice its heating total. The NOAA normal records an annual average of 73°F. August is the warmest month at 82°F and January the coldest at 62°F.
- 73°F
- average temperature, NOAA 1991-2020 normal
- 51.2"
- annual precipitation
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
73°F (23°C)Annual mean temperature: 73.1°F. National station-mapped location corpus median: 52.2°F across 6,861 measured records.
Warmer national band
Avg High
83°FAnnual average daily high: 82.6°F. National station-mapped location corpus median: 63.8°F across 6,861 measured records.
Warmer national band
Avg Low
64°FAnnual average daily low: 63.6°F. National station-mapped location corpus median: 41.1°F across 6,861 measured records.
Warmer national band
Annual Precip
51.2"Annual precipitation: 51.2 inches. National station-mapped location corpus median: 36.2 inches across 6,352 measured records.
Wetter national band
Fort Pierce St Lucie County sits in Florida, the #1 hottest U.S. state at 72.6°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · model supports three NOAA data products
Fort Pierce St Lucie County's broader climate profile: 77/100
A percentile-benchmarked model across annual, daily, and hourly climate normals. This record uses 2 measured NOAA products; every input remains inspectable.
PlainClimate-derived, not an official NOAA rating. This separate index does not replace the established Comfort Score used in rankings, and it is not a verdict on safety, health, housing, culture, or overall quality of life.
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Annual temperature balance
73.1°F · 5.6° from 67.5°F
83/100 B · weight 25%Distance from a 67.5°F annual mean; smaller is better.
NOAA annual/seasonal normals ·
ANN-TAVG-NORMAL -
Precipitation balance
51.2 in · 16.2 from 35 in
43/100 D · weight 15%Distance from 35 annual inches; smaller is better.
NOAA annual/seasonal normals ·
ANN-PRCP-NORMAL -
Snowfall burden
Not measured
N/A N/A · weight 10%Not scored; its 10% weight redistributes across measured dimensions.
Annual snowfall; lower is better in this formula.
NOAA annual/seasonal normals ·
ANN-SNOW-NORMAL -
Frost-free season
Not measured
N/A N/A · weight 10%Not scored; its 10% weight redistributes across measured dimensions.
Days between NOAA 50% spring and fall freeze dates; longer is better.
NOAA annual/seasonal normals ·
ANN-TMIN-PRBLST-T32FP50 + ANN-TMIN-PRBFST-T32FP50 -
Normal heat + freeze calendar
48 calendar days
92/100 A · weight 25%Normal high ≥90°F days plus normal low ≤32°F days; lower is better.
NOAA daily multivariate normals ·
DLY-TMAX-NORMAL + DLY-TMIN-NORMAL (derived counts) -
Summer moisture balance
Not measured
N/A N/A · weight 15%Not scored; its 15% weight redistributes across measured dimensions.
June–August mean dew point distance from 52.5°F; smaller is better.
NOAA hourly normals ·
HLY-DEWP-NORMAL
Live national benchmark table and calculation
Each raw metric is linearly interpolated across its live p10, p25, p50, p75, and p90 breakpoints. Equal-valued breakpoints collapse to their mean percentile; values outside p10-p90 extrapolate toward 0 or 100 using the nearest non-flat segment, then clamp to that range. Scores favor the direction shown, then combine by the listed weights. Missing dimensions are removed from both the weighted sum and available weight before normalization.
| Dimension | Weight | Better | p10 | p25 | p50 | p75 | p90 | n |
|---|---|---|---|---|---|---|---|---|
| Annual temperature balance | 25% | Lower | 3.4 | 7.9 | 15.3 | 21 | 25.2 | 6,861 |
| Precipitation balance | 15% | Lower | 2.7 | 7.1 | 14.2 | 20.9 | 25.7 | 6,352 |
| Snowfall burden | 10% | Lower | 0 | 2.1 | 18.9 | 42.7 | 69.8 | 4,098 |
| Frost-free season | 10% | Higher | 127 | 150 | 180 | 215 | 253 | 6,446 |
| Normal heat + freeze calendar | 25% | Lower | 56 | 102 | 145 | 180 | 207 | 6,859 |
| Summer moisture balance | 15% | Lower | 2.7 | 6.1 | 9.3 | 14.8 | 18.4 | 417 |
Grades: A 85–100 · B 70–84 · C 55–69 · D 40–54 · F below 40.
Source: NOAA NCEI U.S. Climate Normals v1.0.1 (1991–2020). This record uses NOAA annual/seasonal normals and NOAA daily multivariate normals; the model also supports hourly normals where published · data updated 2026-08-04. Full methodology and limits.
How Fort Pierce St Lucie County compares with its closest stations
Against the 6 closest stations in the record, Fort Pierce St Lucie County averages 73°F a year, cooler than Fort Pierce, FL (74°F) and Vero Beach, FL (74°F).
Corpus-relative placement
Where Fort Pierce St Lucie County sits across the climate record
These comparisons place this primary-station normal among station-mapped locations with the same NOAA 1991–2020 fields.
- Annual temperature
- Warmer than 97%
- of 6,861 measured location normals.
- Annual precipitation
- Wetter than 83%
- of 6,352 measured location normals.
- Seasonal temperature swing
- Larger than 3%
- of 6,861 complete location-year normals.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 73°F (23°C) | 51°F (11°C) | 62°F (17°C) | 2.8" | 1.2 | 0.0 |
| February | 76°F (24°C) | 54°F (12°C) | 65°F (18°C) | 2.2" | 0.1 | 0.1 |
| March | 78°F (26°C) | 57°F (14°C) | 67°F (20°C) | 2.9" | 0.0 | 0.9 |
| April | 82°F (28°C) | 61°F (16°C) | 72°F (22°C) | 3.0" | 0.0 | 1.9 |
| May | 86°F (30°C) | 67°F (19°C) | 76°F (25°C) | 3.9" | 0.0 | 4.9 |
| June | 89°F (31°C) | 71°F (22°C) | 80°F (27°C) | 6.7" | 0.0 | 12.5 |
| July | 90°F (32°C) | 73°F (23°C) | 81°F (27°C) | 5.8" | 0.0 | 18.3 |
| August | 90°F (32°C) | 73°F (23°C) | 82°F (28°C) | 6.9" | 0.0 | 19.2 |
| September | 88°F (31°C) | 73°F (23°C) | 80°F (27°C) | 6.3" | 0.0 | 6.9 |
| October | 84°F (29°C) | 69°F (20°C) | 76°F (25°C) | 5.3" | 0.0 | 1.9 |
| November | 79°F (26°C) | 61°F (16°C) | 70°F (21°C) | 3.0" | 0.0 | 0.1 |
| December | 75°F (24°C) | 56°F (13°C) | 66°F (19°C) | 2.3" | 0.4 | 0.0 |
The year, day by day
The year in Fort Pierce St Lucie County runs from a mild 51°F around January 17 to 91°F at the peak near July 23, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from July 6 through August 22, covering 48 dates. The broader mild season, normal highs of 70°F or more, runs January 1 to December 31.
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 51°F around January 17.
Where the wet dates fall
The likeliest wet date is September 5, when 52% of years recorded at least a hundredth of an inch. The driest is April 25 at 25%. Summed across the calendar, that is about 133 wet dates a year.
The widest day
January 22 carries the biggest normal gap between afternoon and dawn, 23°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Fort Pierce St Lucie County.
Where Fort Pierce St Lucie County Stands Nationally
The normal water year runs well above the national norm at roughly 51 inches.
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
Standing computed against the distribution of 6,860 NOAA 1991–2020 normals stations in the PlainClimate database; only nationally notable standings are shown.
Monthly Precipitation
Average monthly rainfall
8.7 days with precipitation
7.7 days with precipitation
8.1 days with precipitation
7.2 days with precipitation
9.0 days with precipitation
14.2 days with precipitation
15.3 days with precipitation
15.4 days with precipitation
15.4 days with precipitation
12.2 days with precipitation
10.4 days with precipitation
9.3 days with precipitation
Fort Pierce St Lucie County runs a summer-peaked wet season
38% of Fort Pierce St Lucie County's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is August at 6.9", on an unusually narrow 19.3°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: August, June, September, taking 39% of the annual total between them.
- Driest month: February at 2.2".
- Winter share: 14% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
When it rains in Fort Pierce St Lucie County, it arrives in quantity
51.2" of precipitation falls across only about 133 wet days here, averaging 0.39 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 133 a year, 36% of all days
- Average depth per wet day
- 0.39 inches
- Most wet days
- August, about 15
- Fewest wet days
- April, 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
January 14
50% probability date
Last Spring Freeze
January 24
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
418
Higher = more heating needed
Cooling Degree Days
3,391
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Places with a similar climate profile
NOAA 1991–2020 annual normals connect this location to non-geographic peers. Temperature peers use annual mean temperature; energy peers use both heating and cooling degree days.
Closest annual-temperature peers
What Fort Pierce St Lucie County's climate means for you
Fort Pierce St Lucie County runs 73°F a year - peaking in August, coldest in January.
- Air conditioning drives the bills rather than the furnace: 3,391 cooling degree days against 418 for heating.
- See how Fort Pierce St Lucie County lines up against the rest of Florida and the national rankings. See rankings
Climate Guides
Data-derived climate profile
How Fort Pierce St Lucie County's climate pattern fits together
cooling led · wet · low swing
Warm-season load persists through a relatively even calendar in Fort Pierce St Lucie County. Cooling totals 3,391 degree days, more than double the 418 heating measure, and the 19.3°F seasonal range is compact rather than sharply divided.
Warm-season demand is paired with a wet annual normal: 51.2 inches of precipitation at Fort Pierce St Lucie County. Snowfall is not added to the interpretation because its annual value is missing. The month-by-month bars distinguish a concentrated wet season from moisture spread across the calendar.
Fort Pierce St Lucie County's 19.3°F seasonal spread is compact even though precipitation is abundant. August and January mark the typical warm and cold ends of the calendar. The annual average is 73°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
A frost-free growing-season length is not available for Fort Pierce St Lucie County. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
These labels group NOAA 1991-2020 normals from Fort Pierce St Lucie County's primary station, so the summer figures are a thirty-year average rather than a ceiling: individual years have run hotter and will again. They are descriptive ranges, not an official NOAA classification or a forecast for any specific year.
The year in four calendar signals
- Warmest normal
- August
- At 82°F (28°C) this is a genuinely hot month, in the top third of US stations, and the daily average understates afternoon highs.
- Coldest normal
- January
- The coldest month still averages 62°F (17°C), above freezing, so this calendar has no hard winter.
- Rainfall rhythm
- August to February
- August is typically wettest; February is driest.
- Mild-temperature window
- January through December
- Monthly means sit between 55°F and 75°F in this window. Freezing days are still reported from January through December.
Frequently Asked Questions
What is the average temperature in Fort Pierce St Lucie County, FL? ▼
How much rain does Fort Pierce St Lucie County get? ▼
How many days above 90°F does Fort Pierce St Lucie County get? ▼
How much energy does heating and cooling require in Fort Pierce St Lucie County? ▼
Where does this Fort Pierce St Lucie County climate data come from? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Fort Pierce St Lucie County's primary station: FT PIERCE ST LUCIE CO INTL AP (USW00012895). 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. The reproducible method is an exact normalized name-and-state match; unresolved is an upper bound on facilities because spelling variants can be missed.
Related
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.