Key West NAS Weather Records (USW00012850)
Record envelope, standing records and threshold days for Key West NAS (USW00012850), Florida, United States, with 82 years of record.
Key Facts for Key West NAS
- Key West NAS (USW00012850) is a weather station in Florida, United States at 24.58 latitude and -81.68 longitude, 2 m (6 ft) above sea level.
- The station reports from 1945 to 2026, 82 years of record.
- 1,464 records set at Key West NAS still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Key West NAS tied a daily record high minimum temperature of 28.3 C (82.9 F) on 10 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Florida, United States, 24.58 latitude, -81.68 longitude.
- Elevation: 2 m (6 ft).
- Period of record: 1945 to 2026, 82 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 32.2 C (90.0 F) | 6.1 C (43.0 F) | 28.3 C (82.9 F) | 12.2 C (54.0 F) |
| Feb | 33.3 C (91.9 F) | 6.7 C (44.1 F) | 27.8 C (82.0 F) | 8.3 C (46.9 F) |
| Mar | 33.9 C (93.0 F) | 8.3 C (46.9 F) | 28.9 C (84.0 F) | 17.8 C (64.0 F) |
| Apr | 32.8 C (91.0 F) | 12.2 C (54.0 F) | 29.4 C (84.9 F) | 21.7 C (71.1 F) |
| May | 35.6 C (96.1 F) | 15.0 C (59.0 F) | 35.6 C (96.1 F) | 23.9 C (75.0 F) |
| Jun | 37.2 C (99.0 F) | 20.0 C (68.0 F) | 32.8 C (91.0 F) | 23.3 C (73.9 F) |
| Jul | 37.8 C (100.0 F) | 21.1 C (70.0 F) | 33.3 C (91.9 F) | 26.7 C (80.1 F) |
| Aug | 38.9 C (102.0 F) | 17.8 C (64.0 F) | 33.9 C (93.0 F) | 27.2 C (81.0 F) |
| Sep | 39.4 C (102.9 F) | 18.9 C (66.0 F) | 33.3 C (91.9 F) | 22.8 C (73.0 F) |
| Oct | 34.4 C (93.9 F) | 15.6 C (60.1 F) | 32.2 C (90.0 F) | 25.0 C (77.0 F) |
| Nov | 35.6 C (96.1 F) | 10.0 C (50.0 F) | n/a | n/a |
| Dec | 32.2 C (90.0 F) | 6.1 C (43.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1945 | 14 |
| 1946 | 6 |
| 1947 | 5 |
| 1953 | 12 |
| 1954 | 17 |
| 1955 | 18 |
| 1956 | 25 |
| 1957 | 19 |
| 1958 | 24 |
| 1959 | 23 |
| 1960 | 30 |
| 1961 | 8 |
| 1962 | 22 |
| 1963 | 9 |
| 1964 | 16 |
| 1965 | 17 |
| 1966 | 28 |
| 1967 | 27 |
| 1968 | 34 |
| 1969 | 34 |
| 1970 | 30 |
| 1971 | 17 |
| 1972 | 9 |
| 1973 | 14 |
| 1974 | 1 |
| 1975 | 8 |
| 1976 | 14 |
| 1977 | 21 |
| 1978 | 20 |
| 1979 | 5 |
| 1980 | 13 |
| 1981 | 22 |
| 1982 | 5 |
| 1983 | 10 |
| 1984 | 9 |
| 1985 | 15 |
| 1986 | 9 |
| 1987 | 19 |
| 1988 | 9 |
| 1989 | 15 |
| 1990 | 8 |
| 1991 | 7 |
| 1992 | 12 |
| 1993 | 19 |
| 1994 | 14 |
| 1995 | 5 |
| 1996 | 12 |
| 1997 | 12 |
| 1998 | 6 |
| 2001 | 6 |
| 2002 | 6 |
| 2003 | 9 |
| 2004 | 3 |
| 2005 | 9 |
| 2006 | 2 |
| 2007 | 13 |
| 2008 | 10 |
| 2009 | 14 |
| 2010 | 29 |
| 2011 | 8 |
| 2012 | 3 |
| 2013 | 10 |
| 2014 | 3 |
| 2015 | 23 |
| 2016 | 3 |
| 2017 | 10 |
| 2018 | 7 |
| 2019 | 28 |
| 2020 | 76 |
| 2021 | 23 |
| 2022 | 215 |
| 2023 | 79 |
| 2024 | 92 |
| 2025 | 29 |
| 2026 | 6 |
All-Time Record Progression
9 new records| Date | Kind | Detail |
|---|---|---|
| 1981-01-13 | Record low maximum temperature | Record low maximum temperature 11.7 C (53.1 F) |
| 1981-01-13 | Record low minimum temperature | Record low minimum temperature 6.1 C (43.0 F) |
| 1983-01-22 | Record daily precipitation | Record daily precipitation 182.6 mm (7.2 in) |
| 1998-06-30 | Record high maximum temperature | Record high maximum temperature 37.2 C (99.0 F) |
| 2005-08-26 | Record daily precipitation | Record daily precipitation 269.7 mm (10.6 in) |
| 2017-09-17 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 2017-09-22 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 2022-07-13 | Record high minimum temperature | Record high minimum temperature 31.1 C (88.0 F) |
| 2022-07-18 | Record high minimum temperature | Record high minimum temperature 31.7 C (89.1 F) |
Wettest Day of Each Month
Aug: 269.7 mm (10.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 182.6 mm (7.2 in) | 22 January 1983 |
| Feb | 114.0 mm (4.5 in) | 18 February 1981 |
| Mar | 102.1 mm (4.0 in) | 29 March 2025 |
| Apr | 160.0 mm (6.3 in) | 12 April 1985 |
| May | 143.5 mm (5.6 in) | 30 May 1960 |
| Jun | 171.7 mm (6.8 in) | 25 June 1992 |
| Jul | 115.6 mm (4.6 in) | 29 July 1983 |
| Aug | 269.7 mm (10.6 in) | 26 August 2005 |
| Sep | 168.4 mm (6.6 in) | 12 September 2020 |
| Oct | 187.5 mm (7.4 in) | 17 October 2011 |
| Nov | 241.0 mm (9.5 in) | 1 November 2005 |
| Dec | 144.0 mm (5.7 in) | 8 December 1987 |
Period of Record Coverage
1945 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1945 | 306 | 84% | No |
| 1946 | 239 | 65% | No |
| 1947 | 151 | 41% | No |
| 1953 | 184 | 50% | No |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 349 | 96% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 336 | 92% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 334 | 92% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 359 | 98% | Yes |
| 2001 | 362 | 99% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 274 | 75% | No |
| 2004 | 201 | 55% | No |
| 2005 | 353 | 97% | Yes |
| 2006 | 58 | 16% | No |
| 2007 | 273 | 75% | No |
| 2008 | 299 | 82% | No |
| 2009 | 364 | 100% | Yes |
| 2010 | 352 | 96% | Yes |
| 2011 | 338 | 93% | Yes |
| 2012 | 259 | 71% | No |
| 2013 | 326 | 89% | No |
| 2014 | 348 | 95% | Yes |
| 2015 | 347 | 95% | Yes |
| 2016 | 347 | 95% | Yes |
| 2017 | 313 | 86% | No |
| 2018 | 362 | 99% | Yes |
| 2019 | 348 | 95% | Yes |
| 2020 | 355 | 97% | Yes |
| 2021 | 343 | 94% | Yes |
| 2022 | 355 | 97% | Yes |
| 2023 | 277 | 76% | No |
| 2024 | 338 | 92% | Yes |
| 2025 | 353 | 97% | Yes |
| 2026 | 229 | 63% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 10 October 2026 | Key West NAS, US | daily high min (Tie, Provisional) | 28.3 C (82.9 F) | tie | 16 years | 3 of 100 (Routine) |
| 9 October 2026 | Key West NAS, US | daily high min (Tie, Provisional) | 28.9 C (84.0 F) | tie | 16 years | 3 of 100 (Routine) |
| 4 October 2026 | Key West NAS, US | daily high min (Provisional) | 28.3 C (82.9 F) | 0.5 C (0.9 F) | 61 years | 28 of 100 (Routine) |
| 3 October 2026 | Key West NAS, US | daily high min (Provisional) | 28.3 C (82.9 F) | 0.5 C (0.9 F) | 36 years | 21 of 100 (Routine) |
| 1 October 2026 | Key West NAS, US | daily rain (Provisional) | 56.6 mm (2.2 in) | 15.2 mm (0.6 in) | 80 years | 40 of 100 (Notable) |
| 30 September 2026 | Key West NAS, US | daily low min (Tie, Provisional) | 22.8 C (73.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 2 June 2026 | Key West NAS, US | daily high min (Tie) | 27.8 C (82.0 F) | tie | 32 years | 4 of 100 (Routine) |
| 10 May 2026 | Key West NAS, US | monthly high max (Tie) | 35.6 C (96.1 F) | tie | 0 years | 4 of 100 (Routine) |
| 2 May 2026 | Key West NAS, US | daily high min (Tie) | 26.7 C (80.1 F) | tie | 61 years | 6 of 100 (Routine) |
| 12 March 2026 | Key West NAS, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 48 years | 5 of 100 (Routine) |
| 25 February 2026 | Key West NAS, US | daily low min (Tie) | 11.1 C (52.0 F) | tie | 36 years | 4 of 100 (Routine) |
| 24 February 2026 | Key West NAS, US | daily low max | 14.4 C (57.9 F) | 2.8 C (5.0 F) | 52 years | 31 of 100 (Routine) |
| 3 February 2026 | Key West NAS, US | daily low min | 10.0 C (50.0 F) | 1.1 C (2.0 F) | 44 years | 24 of 100 (Routine) |
| 2 February 2026 | Key West NAS, US | daily low max | 13.3 C (55.9 F) | 2.3 C (4.1 F) | 47 years | 28 of 100 (Routine) |
| 2 February 2026 | Key West NAS, US | daily low min | 8.3 C (46.9 F) | 1.7 C (3.1 F) | 46 years | 25 of 100 (Routine) |
| 1 February 2026 | Key West NAS, US | daily low min | 10.0 C (50.0 F) | 2.2 C (4.0 F) | 47 years | 28 of 100 (Routine) |
| 11 November 2025 | Key West NAS, US | daily low min | 14.4 C (57.9 F) | 2.3 C (4.1 F) | 34 years | 26 of 100 (Routine) |
| 11 November 2025 | Key West NAS, US | daily low max (Tie) | 20.6 C (69.1 F) | tie | 63 years | 6 of 100 (Routine) |
| 28 September 2025 | Key West NAS, US | daily high min (Tie) | 28.9 C (84.0 F) | tie | 0 years | 2 of 100 (Routine) |
| 28 July 2025 | Key West NAS, US | daily rain | 50.3 mm (2.0 in) | 0.8 mm (0.03 in) | 20 years | 14 of 100 (Routine) |
Climate Trend
53 complete years, 1954 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1954 | 25.0 C | -0.56 C |
| 1955 | 24.8 C | -0.71 C |
| 1956 | 24.8 C | -0.72 C |
| 1957 | 25.4 C | -0.17 C |
| 1958 | 24.6 C | -0.96 C |
| 1959 | 25.3 C | -0.25 C |
| 1960 | 24.9 C | -0.68 C |
| 1961 | 25.3 C | -0.22 C |
| 1962 | 25.0 C | -0.57 C |
| 1963 | 24.9 C | -0.67 C |
| 1964 | 25.3 C | -0.22 C |
| 1965 | 25.8 C | +0.27 C |
| 1966 | 24.4 C | -1.13 C |
| 1967 | 25.6 C | +0.08 C |
| 1968 | 24.5 C | -1.05 C |
| 1969 | 24.9 C | -0.69 C |
| 1971 | 25.3 C | -0.22 C |
| 1972 | 25.9 C | +0.38 C |
| 1973 | 25.4 C | -0.12 C |
| 1974 | 25.9 C | +0.38 C |
| 1975 | 26.4 C | +0.82 C |
| 1976 | 25.2 C | -0.31 C |
| 1977 | 25.1 C | -0.41 C |
| 1978 | 25.2 C | -0.35 C |
| 1979 | 25.3 C | -0.25 C |
| 1981 | 24.4 C | -1.16 C |
| 1982 | 25.9 C | +0.38 C |
| 1983 | 25.1 C | -0.49 C |
| 1984 | 25.0 C | -0.50 C |
| 1986 | 25.7 C | +0.15 C |
| 1987 | 25.1 C | -0.45 C |
| 1988 | 25.4 C | -0.11 C |
| 1989 | 26.1 C | +0.57 C |
| 1990 | 25.9 C | +0.32 C |
| 1991 | 25.6 C | +0.10 C |
| 1992 | 25.3 C | -0.22 C |
| 1993 | 25.6 C | +0.04 C |
| 1994 | 26.6 C | +1.02 C |
| 1995 | 25.6 C | +0.01 C |
| 1996 | 24.9 C | -0.69 C |
| 1997 | 26.1 C | +0.53 C |
| 1998 | 25.9 C | +0.31 C |
| 2001 | 25.5 C | -0.06 C |
| 2002 | 25.6 C | +0.01 C |
| 2005 | 25.3 C | -0.29 C |
| 2009 | 26.0 C | +0.49 C |
| 2010 | 25.1 C | -0.44 C |
| 2014 | 25.9 C | +0.37 C |
| 2015 | 26.9 C | +1.31 C |
| 2018 | 26.1 C | +0.51 C |
| 2020 | 27.6 C | +2.05 C |
| 2022 | 28.9 C | +3.40 C |
| 2025 | 26.9 C | +1.34 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.3) per decade over 1954 to 2025. In Fahrenheit: 0.5 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.3 to 0.6) per decade | 1954 to 2025 | 53 | Rise |
| Mean daily maximum | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.5 to 0.8) per decade | 1954 to 2025 | 53 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.1 to 0.5) per decade | 1954 to 2025 | 53 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1945 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.4 C (102.9 F) | 2017 | 33.3 C (91.9 F) | 75 |
| Coldest night (TNn) | 6.1 C (43.0 F) | 1981 | 10.0 C (50.0 F) | 75 |
| Wettest day (Rx1day) | 269.7 mm (10.6 in) | 2005 | 94.0 mm (3.7 in) | 75 |
| Wettest five days (Rx5day) | 591.2 mm (23.3 in) | 2005 | 137.9 mm (5.4 in) | 75 |
| Longest dry spell (CDD) | 67 days | 2007 | 31 days | 75 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1945 | 33.9 C (93.0 F) |
| 1946 | 32.8 C (91.0 F) |
| 1947 | 31.7 C (89.1 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 33.3 C (91.9 F) |
| 1955 | 32.2 C (90.0 F) |
| 1956 | 32.2 C (90.0 F) |
| 1957 | 32.8 C (91.0 F) |
| 1958 | 32.8 C (91.0 F) |
| 1959 | 31.7 C (89.1 F) |
| 1960 | 32.8 C (91.0 F) |
| 1961 | 32.8 C (91.0 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 33.3 C (91.9 F) |
| 1964 | 33.3 C (91.9 F) |
| 1965 | 33.3 C (91.9 F) |
| 1966 | 33.3 C (91.9 F) |
| 1967 | 34.4 C (93.9 F) |
| 1968 | 34.4 C (93.9 F) |
| 1969 | 35.0 C (95.0 F) |
| 1970 | 33.9 C (93.0 F) |
| 1971 | 33.3 C (91.9 F) |
| 1972 | 32.8 C (91.0 F) |
| 1973 | 32.8 C (91.0 F) |
| 1974 | 33.3 C (91.9 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 33.3 C (91.9 F) |
| 1977 | 33.3 C (91.9 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 33.3 C (91.9 F) |
| 1980 | 33.9 C (93.0 F) |
| 1981 | 33.3 C (91.9 F) |
| 1982 | 33.3 C (91.9 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 33.3 C (91.9 F) |
| 1985 | 33.3 C (91.9 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 33.3 C (91.9 F) |
| 1988 | 33.3 C (91.9 F) |
| 1989 | 33.3 C (91.9 F) |
| 1990 | 33.3 C (91.9 F) |
| 1991 | 33.3 C (91.9 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 33.3 C (91.9 F) |
| 1996 | 32.8 C (91.0 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 37.2 C (99.0 F) |
| 2001 | 33.9 C (93.0 F) |
| 2002 | 32.8 C (91.0 F) |
| 2003 | 33.3 C (91.9 F) |
| 2004 | 32.8 C (91.0 F) |
| 2005 | 33.3 C (91.9 F) |
| 2006 | 30.6 C (87.1 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 34.4 C (93.9 F) |
| 2009 | 33.9 C (93.0 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 34.4 C (93.9 F) |
| 2013 | 36.7 C (98.1 F) |
| 2014 | 35.0 C (95.0 F) |
| 2015 | 34.4 C (93.9 F) |
| 2016 | 33.9 C (93.0 F) |
| 2017 | 39.4 C (102.9 F) |
| 2018 | 34.4 C (93.9 F) |
| 2019 | 35.6 C (96.1 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 35.0 C (95.0 F) |
| 2022 | 36.7 C (98.1 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 38.9 C (102.0 F) |
| 2025 | 35.6 C (96.1 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1945 | 12.8 C (55.0 F) |
| 1946 | 13.3 C (55.9 F) |
| 1947 | 10.6 C (51.1 F) |
| 1953 | 12.8 C (55.0 F) |
| 1954 | 12.2 C (54.0 F) |
| 1955 | 8.9 C (48.0 F) |
| 1956 | 12.2 C (54.0 F) |
| 1957 | 7.8 C (46.0 F) |
| 1958 | 7.2 C (45.0 F) |
| 1959 | 10.0 C (50.0 F) |
| 1960 | 10.0 C (50.0 F) |
| 1961 | 10.6 C (51.1 F) |
| 1962 | 8.3 C (46.9 F) |
| 1963 | 11.1 C (52.0 F) |
| 1964 | 8.3 C (46.9 F) |
| 1965 | 11.1 C (52.0 F) |
| 1966 | 7.8 C (46.0 F) |
| 1967 | 10.0 C (50.0 F) |
| 1968 | 8.3 C (46.9 F) |
| 1969 | 9.4 C (48.9 F) |
| 1970 | 7.2 C (45.0 F) |
| 1971 | 8.9 C (48.0 F) |
| 1972 | 12.8 C (55.0 F) |
| 1973 | 10.0 C (50.0 F) |
| 1974 | 10.6 C (51.1 F) |
| 1975 | 12.2 C (54.0 F) |
| 1976 | 10.0 C (50.0 F) |
| 1977 | 7.8 C (46.0 F) |
| 1978 | 10.0 C (50.0 F) |
| 1979 | 10.6 C (51.1 F) |
| 1980 | 8.3 C (46.9 F) |
| 1981 | 6.1 C (43.0 F) |
| 1982 | 10.6 C (51.1 F) |
| 1983 | 6.7 C (44.1 F) |
| 1984 | 11.7 C (53.1 F) |
| 1985 | 8.3 C (46.9 F) |
| 1986 | 10.0 C (50.0 F) |
| 1987 | 10.6 C (51.1 F) |
| 1988 | 10.0 C (50.0 F) |
| 1989 | 6.1 C (43.0 F) |
| 1990 | 13.3 C (55.9 F) |
| 1991 | 8.9 C (48.0 F) |
| 1992 | 12.8 C (55.0 F) |
| 1993 | 10.6 C (51.1 F) |
| 1994 | 12.2 C (54.0 F) |
| 1995 | 8.9 C (48.0 F) |
| 1996 | 6.1 C (43.0 F) |
| 1997 | 8.9 C (48.0 F) |
| 1998 | 12.2 C (54.0 F) |
| 2001 | 10.6 C (51.1 F) |
| 2002 | 9.4 C (48.9 F) |
| 2003 | 6.7 C (44.1 F) |
| 2004 | 11.7 C (53.1 F) |
| 2005 | 9.4 C (48.9 F) |
| 2006 | 13.3 C (55.9 F) |
| 2007 | 11.7 C (53.1 F) |
| 2008 | 7.2 C (45.0 F) |
| 2009 | 8.3 C (46.9 F) |
| 2010 | 6.1 C (43.0 F) |
| 2011 | 11.7 C (53.1 F) |
| 2012 | 8.3 C (46.9 F) |
| 2013 | 10.0 C (50.0 F) |
| 2014 | 12.2 C (54.0 F) |
| 2015 | 9.4 C (48.9 F) |
| 2016 | 12.2 C (54.0 F) |
| 2017 | 12.2 C (54.0 F) |
| 2018 | 11.1 C (52.0 F) |
| 2019 | 12.2 C (54.0 F) |
| 2020 | 11.7 C (53.1 F) |
| 2021 | 13.3 C (55.9 F) |
| 2022 | 12.2 C (54.0 F) |
| 2023 | 14.4 C (57.9 F) |
| 2024 | 15.0 C (59.0 F) |
| 2025 | 13.3 C (55.9 F) |
| 2026 | 8.3 C (46.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1945 | 95.8 mm (3.8 in) |
| 1946 | 37.3 mm (1.5 in) |
| 1947 | 48.3 mm (1.9 in) |
| 1953 | 129.3 mm (5.1 in) |
| 1954 | 146.1 mm (5.8 in) |
| 1955 | 58.2 mm (2.3 in) |
| 1956 | 49.3 mm (1.9 in) |
| 1957 | 89.2 mm (3.5 in) |
| 1958 | 82.8 mm (3.3 in) |
| 1959 | 110.7 mm (4.4 in) |
| 1960 | 143.5 mm (5.6 in) |
| 1961 | 36.1 mm (1.4 in) |
| 1962 | 69.1 mm (2.7 in) |
| 1963 | 139.7 mm (5.5 in) |
| 1964 | 75.2 mm (3.0 in) |
| 1965 | 67.3 mm (2.6 in) |
| 1966 | 85.6 mm (3.4 in) |
| 1967 | 61.0 mm (2.4 in) |
| 1968 | 83.1 mm (3.3 in) |
| 1969 | 106.7 mm (4.2 in) |
| 1970 | 66.3 mm (2.6 in) |
| 1971 | 155.7 mm (6.1 in) |
| 1972 | 62.5 mm (2.5 in) |
| 1973 | 63.5 mm (2.5 in) |
| 1974 | 64.5 mm (2.5 in) |
| 1975 | 54.1 mm (2.1 in) |
| 1976 | 96.0 mm (3.8 in) |
| 1977 | 83.6 mm (3.3 in) |
| 1978 | 55.1 mm (2.2 in) |
| 1979 | 106.9 mm (4.2 in) |
| 1980 | 91.4 mm (3.6 in) |
| 1981 | 114.0 mm (4.5 in) |
| 1982 | 146.3 mm (5.8 in) |
| 1983 | 182.6 mm (7.2 in) |
| 1984 | 116.3 mm (4.6 in) |
| 1985 | 160.0 mm (6.3 in) |
| 1986 | 82.6 mm (3.3 in) |
| 1987 | 144.0 mm (5.7 in) |
| 1988 | 115.8 mm (4.6 in) |
| 1989 | 109.0 mm (4.3 in) |
| 1990 | 112.8 mm (4.4 in) |
| 1991 | 147.3 mm (5.8 in) |
| 1992 | 171.7 mm (6.8 in) |
| 1993 | 117.3 mm (4.6 in) |
| 1994 | 111.8 mm (4.4 in) |
| 1995 | 108.5 mm (4.3 in) |
| 1996 | 86.4 mm (3.4 in) |
| 1997 | 101.1 mm (4.0 in) |
| 1998 | 94.0 mm (3.7 in) |
| 2001 | 77.2 mm (3.0 in) |
| 2002 | 117.1 mm (4.6 in) |
| 2003 | 22.4 mm (0.9 in) |
| 2004 | 77.7 mm (3.1 in) |
| 2005 | 269.7 mm (10.6 in) |
| 2006 | 20.8 mm (0.8 in) |
| 2007 | 48.0 mm (1.9 in) |
| 2008 | 45.2 mm (1.8 in) |
| 2009 | 184.1 mm (7.2 in) |
| 2010 | 66.3 mm (2.6 in) |
| 2011 | 187.5 mm (7.4 in) |
| 2012 | 60.7 mm (2.4 in) |
| 2013 | 130.3 mm (5.1 in) |
| 2014 | 80.5 mm (3.2 in) |
| 2015 | 117.3 mm (4.6 in) |
| 2016 | 54.4 mm (2.1 in) |
| 2017 | 106.4 mm (4.2 in) |
| 2018 | 63.2 mm (2.5 in) |
| 2019 | 100.3 mm (3.9 in) |
| 2020 | 168.4 mm (6.6 in) |
| 2021 | 105.9 mm (4.2 in) |
| 2022 | 80.5 mm (3.2 in) |
| 2023 | 42.7 mm (1.7 in) |
| 2024 | 133.1 mm (5.2 in) |
| 2025 | 102.1 mm (4.0 in) |
| 2026 | 56.6 mm (2.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1945 | 200.7 mm (7.9 in) |
| 1946 | 67.5 mm (2.7 in) |
| 1947 | 68.6 mm (2.7 in) |
| 1953 | 183.1 mm (7.2 in) |
| 1954 | 185.8 mm (7.3 in) |
| 1955 | 68.2 mm (2.7 in) |
| 1956 | 115.4 mm (4.5 in) |
| 1957 | 105.8 mm (4.2 in) |
| 1958 | 134.2 mm (5.3 in) |
| 1959 | 146.0 mm (5.7 in) |
| 1960 | 295.9 mm (11.6 in) |
| 1961 | 58.6 mm (2.3 in) |
| 1962 | 156.0 mm (6.1 in) |
| 1963 | 216.5 mm (8.5 in) |
| 1964 | 111.2 mm (4.4 in) |
| 1965 | 97.0 mm (3.8 in) |
| 1966 | 168.7 mm (6.6 in) |
| 1967 | 106.6 mm (4.2 in) |
| 1968 | 181.4 mm (7.1 in) |
| 1969 | 156.5 mm (6.2 in) |
| 1970 | 151.6 mm (6.0 in) |
| 1971 | 197.5 mm (7.8 in) |
| 1972 | 137.9 mm (5.4 in) |
| 1973 | 101.0 mm (4.0 in) |
| 1974 | 84.3 mm (3.3 in) |
| 1975 | 86.8 mm (3.4 in) |
| 1976 | 117.7 mm (4.6 in) |
| 1977 | 150.7 mm (5.9 in) |
| 1978 | 108.7 mm (4.3 in) |
| 1979 | 110.5 mm (4.4 in) |
| 1980 | 173.7 mm (6.8 in) |
| 1981 | 114.0 mm (4.5 in) |
| 1982 | 219.5 mm (8.6 in) |
| 1983 | 398.0 mm (15.7 in) |
| 1984 | 157.5 mm (6.2 in) |
| 1985 | 221.7 mm (8.7 in) |
| 1986 | 122.8 mm (4.8 in) |
| 1987 | 146.3 mm (5.8 in) |
| 1988 | 159.2 mm (6.3 in) |
| 1989 | 138.5 mm (5.5 in) |
| 1990 | 161.1 mm (6.3 in) |
| 1991 | 226.9 mm (8.9 in) |
| 1992 | 306.3 mm (12.1 in) |
| 1993 | 133.3 mm (5.2 in) |
| 1994 | 252.8 mm (10.0 in) |
| 1995 | 260.4 mm (10.3 in) |
| 1996 | 162.2 mm (6.4 in) |
| 1997 | 161.8 mm (6.4 in) |
| 1998 | 132.8 mm (5.2 in) |
| 2001 | 180.1 mm (7.1 in) |
| 2002 | 135.4 mm (5.3 in) |
| 2003 | 51.8 mm (2.0 in) |
| 2004 | 77.7 mm (3.1 in) |
| 2005 | 591.2 mm (23.3 in) |
| 2006 | 33.8 mm (1.3 in) |
| 2007 | 71.1 mm (2.8 in) |
| 2008 | 46.0 mm (1.8 in) |
| 2009 | 198.9 mm (7.8 in) |
| 2010 | 99.5 mm (3.9 in) |
| 2011 | 471.7 mm (18.6 in) |
| 2012 | 114.3 mm (4.5 in) |
| 2013 | 182.3 mm (7.2 in) |
| 2014 | 98.0 mm (3.9 in) |
| 2015 | 120.9 mm (4.8 in) |
| 2016 | 64.9 mm (2.6 in) |
| 2017 | 141.5 mm (5.6 in) |
| 2018 | 102.6 mm (4.0 in) |
| 2019 | 141.2 mm (5.6 in) |
| 2020 | 217.9 mm (8.6 in) |
| 2021 | 123.2 mm (4.9 in) |
| 2022 | 193.1 mm (7.6 in) |
| 2023 | 80.2 mm (3.2 in) |
| 2024 | 133.1 mm (5.2 in) |
| 2025 | 102.1 mm (4.0 in) |
| 2026 | 30.6 mm (1.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1945 | 23 days |
| 1946 | 35 days |
| 1947 | 34 days |
| 1953 | 21 days |
| 1954 | 27 days |
| 1955 | 62 days |
| 1956 | 58 days |
| 1957 | 25 days |
| 1958 | 31 days |
| 1959 | 48 days |
| 1960 | 35 days |
| 1961 | 34 days |
| 1962 | 31 days |
| 1963 | 45 days |
| 1964 | 24 days |
| 1965 | 39 days |
| 1966 | 28 days |
| 1967 | 48 days |
| 1968 | 42 days |
| 1969 | 25 days |
| 1970 | 38 days |
| 1971 | 37 days |
| 1972 | 23 days |
| 1973 | 31 days |
| 1974 | 26 days |
| 1975 | 31 days |
| 1976 | 25 days |
| 1977 | 36 days |
| 1978 | 40 days |
| 1979 | 30 days |
| 1980 | 30 days |
| 1981 | 33 days |
| 1982 | 31 days |
| 1983 | 35 days |
| 1984 | 33 days |
| 1985 | 24 days |
| 1986 | 28 days |
| 1987 | 40 days |
| 1988 | 41 days |
| 1989 | 34 days |
| 1990 | 28 days |
| 1991 | 26 days |
| 1992 | 29 days |
| 1993 | 24 days |
| 1994 | 21 days |
| 1995 | 37 days |
| 1996 | 28 days |
| 1997 | 28 days |
| 1998 | 38 days |
| 2001 | 42 days |
| 2002 | 44 days |
| 2003 | 49 days |
| 2004 | 40 days |
| 2005 | 26 days |
| 2006 | 11 days |
| 2007 | 67 days |
| 2008 | 30 days |
| 2009 | 57 days |
| 2010 | 19 days |
| 2011 | 42 days |
| 2012 | 32 days |
| 2013 | 27 days |
| 2014 | 22 days |
| 2015 | 48 days |
| 2016 | 24 days |
| 2017 | 29 days |
| 2018 | 34 days |
| 2019 | 28 days |
| 2020 | 34 days |
| 2021 | 47 days |
| 2022 | 18 days |
| 2023 | 45 days |
| 2024 | 28 days |
| 2025 | 34 days |
| 2026 | 7 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Rainfall Return Levels
64 years, 1954 to 2024A day with at least 96.6 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 241.0 mm (9.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 96.6 mm (3.8 in) | |
| 5 years | 135.5 mm (5.3 in) | |
| 10 years | 161.1 mm (6.3 in) | |
| 25 years | 193.4 mm (7.6 in) | |
| 50 years | 217.4 mm (8.6 in) | |
| 100 years | 241.0 mm (9.5 in) | Longer than the 64 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 64 years of values from 1954 to 2024.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 269.7 mm (10.6 in) in 2005; 187.5 mm (7.4 in) in 2011; 184.1 mm (7.2 in) in 2009.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Key West NAS, at 1979 and 2015. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1979 ran 0.3 C (0.6 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2015 ran 0.8 C (1.5 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1979 | -0.3 | -0.6 | likely | 5 |
| 2015 | +0.8 | +1.5 | possible | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).