Marathon, FL

Florida · Records since 1950–2026

🌤️ 92Β°F Feels like 103Β°
Currently in Marathon
As of 12:30 PM EDT
πŸ”₯ 3° below today's record of 95°F

Records for August 16

🔥 Record High

95Β°F

August 16, 1993

+3Β° from 92Β° normal

❄ Record Low

70Β°F

August 16, 1952

-10Β° from 80Β° normal
🌞 Normal high: 92Β°F 🌑 Normal low: 80Β°F 1991–2020 normals

All-Time Records β€” Marathon

🔥
99°F
Hottest Day Ever
Jul 24, 2023
37°F
Coldest Day Ever
Dec 25, 1989
🌧
8.33"
Wettest Day Ever
Aug 24, 1995
0.0"
Most Snow in One Day
Aug 15, 2026

Top 10 Record Highs β€” August 16

# Temp Date
🏆 95Β°F August 16, 1993
2 95Β°F August 16, 1989
3 94Β°F August 16, 2017
4 93Β°F August 16, 2022
5 93Β°F August 16, 2019
6 93Β°F August 16, 2015
7 93Β°F August 16, 2014
8 93Β°F August 16, 2013
9 93Β°F August 16, 2012
10 93Β°F August 16, 2010

Top 5 Record Lows β€” August 16

# Temp Date
🥶 70Β°F August 16, 1952
2 72Β°F August 16, 2003
3 72Β°F August 16, 1953
4 74Β°F August 16, 1988
5 74Β°F August 16, 1972
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1950–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary β€” Marathon

threshold: 93Β°F (90th percentile of historical Jun–Aug highs)
5.8
Avg heat wave length
days (historical)
95Β°
Avg peak temp
during heat waves
176
Dangerous nights 2026
Overnights β‰₯ 70Β°F
0
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

40 of 227 days with data were above the 1991–2020 normal high for their date.


Days β‰₯ 90Β°F Per Year

1950–2026
33
2026 so far
79
Avg/year 1970–2025
109
Avg/year (last 10 complete)
159
Most in a year (2019)

Average Daily High by Decade

Full year Β· complete decades only


Longest Heat Waves β€” Marathon

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jun 29, 2023 – Jul 25, 2023 27 99Β°F (Jul 13) 96Β°F 84Β°F
2 Aug 30, 2022 – Sep 17, 2022 19 96Β°F (Sep 2) 94Β°F 81Β°F
3 Jul 29, 2015 – Aug 14, 2015 17 95Β°F (Aug 8) 94Β°F 81Β°F
4 Jul 12, 2009 – Jul 27, 2009 16 96Β°F (Jul 24) 94Β°F 82Β°F
5 Jun 23, 2020 – Jul 8, 2020 16 95Β°F (Jul 5) 94Β°F 82Β°F
6 Jun 29, 2022 – Jul 14, 2022 16 95Β°F (Jul 12) 94Β°F 82Β°F
7 Jun 1, 2019 – Jun 15, 2019 15 98Β°F (Jun 8) 96Β°F 84Β°F
8 Aug 15, 2022 – Aug 28, 2022 14 96Β°F (Aug 19) 95Β°F 82Β°F
9 Jun 27, 2015 – Jul 10, 2015 14 94Β°F (Jun 30) 93Β°F 82Β°F
10 Jul 27, 2002 – Aug 7, 2002 12 97Β°F (Aug 2) 95Β°F 82Β°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

59
2026 so far
above-normal nights
41.9
Avg / summer
1970–2020
65
Most in a summer
2023

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows Β· complete decades only

Precipitation

Actual vs. 1991–2020 full-month and full-season normals

15.76"
2026 YTD
Normal: 20.52"
-4.76"
0.40"
August so far
August normal: 5.32"
-4.92"
4.91"
Summer so far
Summer normal: 13.32"
-8.41"
5
2026 heavy rain days
Days with β‰₯ 1.0"

Monthly Precipitation β€” Last 24 Months

Blue = actual Β· dashed line = monthly normal

Annual Precipitation Per Year (1970–2026)

Blue = above average Β· tan = below average Β· gold = 2026 (partial)

Heavy Rain Days Per Year (β‰₯ 1.0")

Compare year-to-year changes in days with heavy rainfall (β‰₯ 1.0")

Month in Review β€” July 2026

86.0Β°F

Average temperature · July 2026

31st-warmest month on record

13th-warmest July of 67 on record

+0.6Β° vs. 85.3Β° average (1991–2020)
89.5Β°F
Warmest month ever
July 2023
89.5Β°F
Warmest July ever
2023
17
Days β‰₯ 90Β°F
in July
93Β°F
Hottest of 2026
Jul 16

Longest 90Β°F Streak in July

4 consecutive days with highs of at least 90Β°F (Jul 7–10, 2026, peaking at 91Β°F)

The longest July streak since 2025 (1 year). The July record is 31 days, set in 2009.


Average July Temperature by Year

1950–2026 · 2026 highlighted


Warmest Julys on Record

# Year Avg Temp
1 2023 89.5Β°F
2 2009 87.6Β°F
3 2022 86.9Β°F
4 2015 86.8Β°F
5 2019 86.6Β°F
6 2002 86.6Β°F
7 2024 86.6Β°F
8 2018 86.5Β°F
9 2014 86.4Β°F
10 2017 86.4Β°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 2023 89.5Β°F
2 August 2023 88.2Β°F
3 June 2019 88.0Β°F
4 July 2009 87.6Β°F
5 August 2022 87.3Β°F
6 July 2022 86.9Β°F
7 July 2015 86.8Β°F
8 August 1998 86.8Β°F
9 August 2015 86.8Β°F
10 August 2017 86.8Β°F

Nearby Stations β€” July 2026

How the same month ranked at the closest reporting stations

Station Avg Temp July Rank
Marathon, FL 86.0Β°F 13th of 67
Key West, FL 86.2Β°F 10th of 153
Miami, FL 86.2Β°F 2nd of 126
Fort Lauderdale, FL 85.7Β°F 1st of 110
Fort Myers, FL 84.8Β°F 8th of 128
About this data. Monthly averages are the mean of daily average temperatures, computed from NOAA Threadex records via RCC ACIS. Months missing more than three days of observations are excluded from the rankings, so the in-progress month never appears. Rankings cover 784 complete months on record.