Climate Comfort Score
82/100
Excellent
NOAA 1991–2020 normals 78°F annual avg Public-domain federal data
Islamorada, FL Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 78°F
- Avg annual temp
- 82/100
- Comfort score
- 38.7"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Islamorada
Islamorada, Florida averages 78°F a year and scores 82/100 on the comfort index - excellent, milder than 83% of U.S. cities.
- 78°F
- average temperature, NOAA 1991-2020 normal
- 82/100
- comfort score, milder than 83% of U.S. cities
- 38.7"
- annual precipitation
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
78°F (26°C)
Avg High
83°F
Avg Low
73°F
Annual Precip
38.7"
Annual Snow
0.0"
Comfort Score
82/100
Excellent
Avg Annual Temperature
78°F
30-year mean (NOAA NCEI)
Annual Precipitation
38.7"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Islamorada) 82.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Islamorada area.
How Islamorada compares to every U.S. city
Islamorada's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
82 Top 17% higher than 83% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Islamorada
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Islamorada captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 75°F (24°C) | 65°F (18°C) | 70°F (21°C) | 1.0" | 0.0" | 0.0 | 0.0 |
| February | 77°F (25°C) | 67°F (19°C) | 72°F (22°C) | 1.3" | 0.0" | 0.0 | 0.0 |
| March | 78°F (26°C) | 69°F (21°C) | 74°F (23°C) | 1.3" | 0.0" | 0.0 | 0.0 |
| April | 81°F (27°C) | 72°F (22°C) | 77°F (25°C) | 2.8" | 0.0" | 0.0 | 0.0 |
| May | 84°F (29°C) | 76°F (24°C) | 80°F (27°C) | 2.4" | 0.0" | 0.0 | 0.2 |
| June | 87°F (30°C) | 78°F (26°C) | 82°F (28°C) | 5.1" | 0.0" | 0.0 | 3.2 |
| July | 89°F (32°C) | 80°F (26°C) | 84°F (29°C) | 3.9" | 0.0" | 0.0 | 7.9 |
| August | 89°F (32°C) | 79°F (26°C) | 84°F (29°C) | 5.6" | 0.0" | 0.0 | 11.6 |
| September | 88°F (31°C) | 79°F (26°C) | 84°F (29°C) | 8.1" | 0.0" | 0.0 | 4.7 |
| October | 85°F (30°C) | 76°F (25°C) | 81°F (27°C) | 4.5" | 0.0" | 0.0 | 2.0 |
| November | 80°F (27°C) | 71°F (22°C) | 76°F (24°C) | 1.6" | 0.0" | 0.0 | 0.1 |
| December | 78°F (25°C) | 68°F (20°C) | 73°F (23°C) | 1.2" | 0.0" | 0.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.0"
4.8 days with precipitation
February 1.3"
4.4 days with precipitation
March 1.3"
4.4 days with precipitation
April 2.8"
3.8 days with precipitation
May 2.4"
6.4 days with precipitation
June 5.1"
9.5 days with precipitation
July 3.9"
9.6 days with precipitation
August 5.6"
9.9 days with precipitation
September 8.1"
12.0 days with precipitation
October 4.5"
9.2 days with precipitation
November 1.6"
5.6 days with precipitation
December 1.2"
7.3 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
57
Higher = more heating needed
Cooling Degree Days
4,780
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Islamorada's climate means for you
Islamorada runs 78°F a year - peaking in July, coldest in January.
- Energy bills track 57 heating and 4,780 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Islamorada, FL
Based on station USC00084320 feeding NOAA's 1991–2020 climate normals, Islamorada, Florida averages 78°F a year, ranging from a mean daily high of 83°F to a mean daily low of 73°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Islamorada sees about 38.7 inches of precipitation a year, with negligible snowfall. Growing-season length varies with elevation and microclimate. On the energy side, 57 heating degree days and 4,780 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Islamorada scores 82/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Islamorada, FL? ▼
The average annual temperature in Islamorada, Florida is 78°F. The warmest month averages 89°F (32°C) and the coldest averages 65°F (18°C).
How much rain does Islamorada get? ▼
Islamorada receives 38.7 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Islamorada? ▼
Islamorada has a climate comfort score of 82/100 (Excellent), milder than 83% of U.S. cities in the PlainClimate database.
When is the growing season in Islamorada? ▼
Growing season data is not available for Islamorada.
How much energy does heating and cooling require in Islamorada? ▼
Islamorada has 57 heating degree days and 4,780 cooling degree days annually, a cooling-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Islamorada climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00084320 near Islamorada.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00084320. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.