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Guantanamo Bay NAS Weather Records (CUW00011706)

Record envelope, standing records and threshold days for Guantanamo Bay NAS (CUW00011706), Cuba, with 82 years of record.

Key Facts for Guantanamo Bay NAS

  • Guantanamo Bay NAS (CUW00011706) is a weather station in Cuba at 19.90 latitude and -75.15 longitude, 16 m (53 ft) above sea level.
  • The station reports from 1945 to 2026, 82 years of record.
  • 1,464 records set at Guantanamo Bay NAS still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Guantanamo Bay NAS set a daily record high minimum temperature of 26.1 C (79.0 F) on 2 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Cuba, 19.90 latitude, -75.15 longitude.
  • Elevation: 16 m (53 ft).
  • Period of record: 1945 to 2026, 82 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

3 days at or beyond a record
Daily record high and record low at Guantanamo Bay NAS, with 2026 drawn through them The band shows the record high and record low for each calendar day at Guantanamo Bay NAS. The lines show the 2026 daily maximum and minimum. 3 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 10203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Guantanamo Bay NAS. The lines show the 2026 daily maximum and minimum. 3 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Guantanamo Bay NAS, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.0 C (96.8 F)13.9 C (57.0 F)31.7 C (89.1 F)18.3 C (64.9 F)
Feb35.0 C (95.0 F)13.9 C (57.0 F)30.0 C (86.0 F)13.9 C (57.0 F)
Mar35.0 C (95.0 F)15.0 C (59.0 F)31.1 C (88.0 F)18.9 C (66.0 F)
Apr35.0 C (95.0 F)17.2 C (63.0 F)32.2 C (90.0 F)20.6 C (69.1 F)
May37.2 C (99.0 F)18.9 C (66.0 F)32.2 C (90.0 F)22.2 C (72.0 F)
Jun37.2 C (99.0 F)20.0 C (68.0 F)33.9 C (93.0 F)22.8 C (73.0 F)
Jul39.9 C (103.8 F)20.0 C (68.0 F)34.4 C (93.9 F)23.3 C (73.9 F)
Aug38.9 C (102.0 F)20.0 C (68.0 F)35.0 C (95.0 F)23.9 C (75.0 F)
Sep37.8 C (100.0 F)19.4 C (66.9 F)33.9 C (93.0 F)23.9 C (75.0 F)
Oct38.3 C (100.9 F)18.9 C (66.0 F)32.8 C (91.0 F)24.4 C (75.9 F)
Nov37.2 C (99.0 F)16.1 C (61.0 F)n/an/a
Dec35.0 C (95.0 F)13.9 C (57.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Guantanamo Bay NAS by the year they were set 1,464 records at Guantanamo Bay NAS still stand. 1987 holds the most, with 53. 02040601945: 321946: 281947: 181948: 381949: 361950: 501951: 401952: 121953: 101954: 241955: 61956: 231957: 181958: 331959: 221960: 211961: 201962: 81963: 201964: 91965: 141966: 271967: 201968: 271969: 161970: 201971: 191972: 141973: 151974: 261975: 211976: 251977: 221978: 131979: 101980: 141981: 141982: 41983: 381984: 271985: 191986: 181987: 531988: 371989: 171990: 281991: 281992: 301993: 101994: 231995: 141996: 151997: 61998: 161999: 72000: 32001: 122002: 32003: 22004: 82005: 192006: 132007: 22008: 62009: 52010: 292011: 72012: 62013: 382014: 22015: 452016: 252017: 62018: 62019: 32020: 42021: 42022: 22023: 42024: 112025: 152026: 91945195419631972198119901999200820172026
1,464 records at Guantanamo Bay NAS still stand. 1987 holds the most, with 53.
Standing records at Guantanamo Bay NAS by the year they were set
Year setStanding records
194532
194628
194718
194838
194936
195050
195140
195212
195310
195424
19556
195623
195718
195833
195922
196021
196120
19628
196320
19649
196514
196627
196720
196827
196916
197020
197119
197214
197315
197426
197521
197625
197722
197813
197910
198014
198114
19824
198338
198427
198519
198618
198753
198837
198917
199028
199128
199230
199310
199423
199514
199615
19976
199816
19997
20003
200112
20023
20032
20048
200519
200613
20072
20086
20095
201029
20117
20126
201338
20142
201545
201625
20176
20186
20193
20204
20214
20222
20234
202411
202515
20269

All-Time Record Progression

3 new records
When Guantanamo Bay NAS set new all-time records 3 all-time records were set at Guantanamo Bay NAS between 7 June 2011 and 28 July 2019. Each dot is a new record. Record daily precipitationRecord high maximum temperature7 June 2011: Record daily precipitation 257.0 mm (10.1 in)2 August 2017: Record high maximum temperature 38.9 C (102.0 F)28 July 2019: Record high maximum temperature 39.9 C (103.8 F)20152020
3 all-time records were set at Guantanamo Bay NAS between 7 June 2011 and 28 July 2019. Each dot is a new record.
When Guantanamo Bay NAS set new all-time records
DateKindDetail
2011-06-07Record daily precipitationRecord daily precipitation 257.0 mm (10.1 in)
2017-08-02Record high maximum temperatureRecord high maximum temperature 38.9 C (102.0 F)
2019-07-28Record high maximum temperatureRecord high maximum temperature 39.9 C (103.8 F)

Wettest Day of Each Month

Jun: 257.0 mm (10.1 in)
Record daily precipitation for each month at Guantanamo Bay NAS The wettest day on record for each calendar month at Guantanamo Bay NAS. The most was 257.0 mm (10.1 in) on 7 June 2011. 0100200300 Jan: 57.7 mm (2.3 in), 26 January 1958 Jan Feb: 66.3 mm (2.6 in), 15 February 2019 Feb Mar: 77.5 mm (3.1 in), 17 March 2003 Mar Apr: 98.8 mm (3.9 in), 29 April 1994 Apr May: 183.4 mm (7.2 in), 11 May 1977 May Jun: 257.0 mm (10.1 in), 7 June 2011 Jun Jul: 151.4 mm (6.0 in), 30 July 2004 Jul Aug: 147.1 mm (5.8 in), 26 August 2014 Aug Sep: 162.8 mm (6.4 in), 24 September 1998 Sep Oct: 193.0 mm (7.6 in), 5 October 1963 Oct Nov: 168.9 mm (6.6 in), 25 November 1993 Nov Dec: 86.9 mm (3.4 in), 23 December 2009 Dec
The wettest day on record for each calendar month at Guantanamo Bay NAS. The most was 257.0 mm (10.1 in) on 7 June 2011.
Record daily precipitation for each month at Guantanamo Bay NAS
MonthRecord daily precipitation (mm)Date
Jan57.7 mm (2.3 in)26 January 1958
Feb66.3 mm (2.6 in)15 February 2019
Mar77.5 mm (3.1 in)17 March 2003
Apr98.8 mm (3.9 in)29 April 1994
May183.4 mm (7.2 in)11 May 1977
Jun257.0 mm (10.1 in)7 June 2011
Jul151.4 mm (6.0 in)30 July 2004
Aug147.1 mm (5.8 in)26 August 2014
Sep162.8 mm (6.4 in)24 September 1998
Oct193.0 mm (7.6 in)5 October 1963
Nov168.9 mm (6.6 in)25 November 1993
Dec86.9 mm (3.4 in)23 December 2009

Period of Record Coverage

1945 to 2026
Days with data per year at Guantanamo Bay NAS 82 years of record at Guantanamo Bay NAS, 1945 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1945, 1999, 2000, 2003, 2004, 2005, 2006, 2007 and others. 1945: 273 of 365 days1946: 365 of 365 days1947: 360 of 365 days1948: 364 of 366 days1949: 360 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 363 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 365 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 364 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 362 of 365 days1998: 361 of 365 days1999: 143 of 365 days2000: 142 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 246 of 365 days2004: 234 of 366 days2005: 313 of 365 days2006: 186 of 365 days2007: 184 of 365 days2008: 168 of 366 days2009: 253 of 365 days2010: 336 of 365 days2011: 337 of 365 days2012: 354 of 366 days2013: 354 of 365 days2014: 342 of 365 days2015: 363 of 365 days2016: 352 of 366 days2017: 353 of 365 days2018: 344 of 365 days2019: 353 of 365 days2020: 362 of 366 days2021: 358 of 365 days2022: 362 of 365 days2023: 359 of 365 days2024: 344 of 366 days2025: 359 of 365 days2026: 281 of 365 days195019651980199520102025
82 years of record at Guantanamo Bay NAS, 1945 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1945, 1999, 2000, 2003, 2004, 2005, 2006, 2007 and others.
Days with data per year at Guantanamo Bay NAS
YearDays with dataShare of yearComplete
194527375%No
1946365100%Yes
194736099%Yes
194836499%Yes
194936099%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
195436399%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960365100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991364100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996365100%Yes
199736299%Yes
199836199%Yes
199914339%No
200014239%No
2001365100%Yes
2002365100%Yes
200324667%No
200423464%No
200531386%No
200618651%No
200718450%No
200816846%No
200925369%No
201033692%Yes
201133792%Yes
201235497%Yes
201335497%Yes
201434294%Yes
201536399%Yes
201635296%Yes
201735397%Yes
201834494%Yes
201935397%Yes
202036299%Yes
202135898%Yes
202236299%Yes
202335998%Yes
202434494%Yes
202535998%Yes
202628177%No

Latest Records

20
Latest records at Guantanamo Bay NAS
DateStationRecordValueBeat old record byOld record stoodSignificance
2 October 2026Guantanamo Bay NAS, CUdaily high min (Provisional)26.1 C (79.0 F)0.5 C (0.9 F)79 years36 of 100 (Notable)
1 October 2026Guantanamo Bay NAS, CUdaily high min (Provisional)26.7 C (80.1 F)0.6 C (1.1 F)39 years25 of 100 (Routine)
27 September 2026Guantanamo Bay NAS, CUdaily high min (Tie, Provisional)26.1 C (79.0 F)tie67 years7 of 100 (Routine)
30 August 2026Guantanamo Bay NAS, CUdaily high min (Tie, Provisional)26.1 C (79.0 F)tie11 years2 of 100 (Routine)
11 August 2026Guantanamo Bay NAS, CUdaily high min (Tie)26.7 C (80.1 F)tie28 years4 of 100 (Routine)
30 July 2026Guantanamo Bay NAS, CUdaily high min26.7 C (80.1 F)0.6 C (1.1 F)65 years32 of 100 (Routine)
10 July 2026Guantanamo Bay NAS, CUdaily high min27.2 C (81.0 F)0.5 C (0.9 F)68 years32 of 100 (Routine)
8 July 2026Guantanamo Bay NAS, CUdaily high min (Tie)26.7 C (80.1 F)tie20 years3 of 100 (Routine)
7 June 2026Guantanamo Bay NAS, CUdaily low max26.1 C (79.0 F)0.6 C (1.1 F)63 years29 of 100 (Routine)
20 March 2026Guantanamo Bay NAS, CUdaily low max23.9 C (75.0 F)2.2 C (4.0 F)80 years46 of 100 (Notable)
8 February 2026Guantanamo Bay NAS, CUdaily low max (Tie)26.1 C (79.0 F)tie52 years5 of 100 (Routine)
7 February 2026Guantanamo Bay NAS, CUdaily low min16.1 C (61.0 F)0.6 C (1.1 F)20 years17 of 100 (Routine)
3 February 2026Guantanamo Bay NAS, CUdaily low min (Tie)15.0 C (59.0 F)tie68 years7 of 100 (Routine)
2 February 2026Guantanamo Bay NAS, CUdaily low max22.2 C (72.0 F)2.8 C (5.0 F)50 years39 of 100 (Notable)
2 February 2026Guantanamo Bay NAS, CUall-time low min (Tie)13.9 C (57.0 F)tie70 years12 of 100 (Routine)
1 February 2026Guantanamo Bay NAS, CUdaily low max25.6 C (78.1 F)0.5 C (0.9 F)56 years27 of 100 (Routine)
31 January 2026Guantanamo Bay NAS, CUdaily high min24.4 C (75.9 F)1.1 C (2.0 F)78 years38 of 100 (Notable)
27 January 2026Guantanamo Bay NAS, CUdaily high min (Tie)22.8 C (73.0 F)tie16 years3 of 100 (Routine)
4 December 2025Guantanamo Bay NAS, CUdaily high min (Tie)23.9 C (75.0 F)tie68 years7 of 100 (Routine)
28 October 2025Guantanamo Bay NAS, CUdaily high min25.6 C (78.1 F)0.6 C (1.1 F)32 years23 of 100 (Routine)

Climate Trend

71 complete years, 1946 to 2025
Annual mean temperature at Guantanamo Bay NAS as warming stripes, 1946 to 2025 One stripe for each of 71 complete years at Guantanamo Bay NAS, 1946 to 2025. Blue stripes are years cooler than the station's own mean of 27.0 C (80.6 F); red stripes are warmer. The coolest year was 1950, at 25.5 C (77.8 F), and the warmest was 2015, at 28.4 C (83.2 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1946: 26.0 C, -1.0 C from the station mean1947: 26.7 C, -0.3 C from the station mean1948: 27.2 C, +0.2 C from the station mean1949: 25.8 C, -1.2 C from the station mean1950: 25.5 C, -1.5 C from the station mean1951: 26.0 C, -1.0 C from the station mean1952: 26.4 C, -0.7 C from the station mean1953: 26.5 C, -0.5 C from the station mean1954: 27.3 C, +0.3 C from the station mean1955: 26.8 C, -0.2 C from the station mean1956: 26.9 C, -0.1 C from the station mean1957: 27.5 C, +0.5 C from the station mean1958: 27.4 C, +0.4 C from the station mean1959: 27.7 C, +0.7 C from the station mean1960: 27.5 C, +0.5 C from the station mean1961: 27.4 C, +0.3 C from the station mean1962: 27.3 C, +0.3 C from the station mean1963: 27.1 C, +0.1 C from the station mean1964: 27.4 C, +0.4 C from the station mean1965: 26.8 C, -0.2 C from the station mean1966: 27.1 C, 0.0 C from the station mean1967: 26.0 C, -1.0 C from the station mean1968: 25.9 C, -1.1 C from the station mean1969: 26.2 C, -0.8 C from the station mean1970: 26.1 C, -0.9 C from the station mean1971: 26.4 C, -0.6 C from the station mean1972: 26.4 C, -0.6 C from the station mean1973: 26.4 C, -0.6 C from the station mean1974: 26.0 C, -1.0 C from the station mean1975: 26.6 C, -0.5 C from the station mean1976: 26.0 C, -1.0 C from the station mean1977: 26.5 C, -0.5 C from the station mean1978: 26.2 C, -0.8 C from the station mean1979: 26.7 C, -0.3 C from the station mean1980: 26.9 C, -0.1 C from the station mean1981: 26.9 C, -0.1 C from the station mean1982: 27.0 C, 0.0 C from the station mean1983: 27.9 C, +0.8 C from the station mean1984: 27.5 C, +0.5 C from the station mean1985: 27.6 C, +0.6 C from the station mean1986: 27.5 C, +0.5 C from the station mean1987: 28.2 C, +1.2 C from the station mean1988: 28.1 C, +1.1 C from the station mean1989: 27.8 C, +0.7 C from the station mean1990: 28.2 C, +1.1 C from the station mean1991: 28.2 C, +1.2 C from the station mean1992: 27.8 C, +0.8 C from the station mean1993: 27.4 C, +0.4 C from the station mean1994: 28.0 C, +1.0 C from the station mean1995: 27.5 C, +0.5 C from the station mean1996: 26.7 C, -0.3 C from the station mean1997: 27.0 C, 0.0 C from the station mean1998: 27.0 C, 0.0 C from the station mean2001: 26.6 C, -0.4 C from the station mean2002: 26.8 C, -0.3 C from the station mean2010: 26.7 C, -0.3 C from the station mean2011: 26.4 C, -0.6 C from the station mean2012: 26.5 C, -0.5 C from the station mean2013: 25.9 C, -1.1 C from the station mean2014: 27.3 C, +0.3 C from the station mean2015: 28.4 C, +1.4 C from the station mean2016: 27.8 C, +0.8 C from the station mean2017: 27.3 C, +0.3 C from the station mean2018: 27.4 C, +0.4 C from the station mean2019: 27.2 C, +0.2 C from the station mean2020: 27.5 C, +0.5 C from the station mean2021: 27.4 C, +0.3 C from the station mean2022: 27.2 C, +0.2 C from the station mean2023: 27.6 C, +0.6 C from the station mean2024: 28.1 C, +1.0 C from the station mean2025: 27.6 C, +0.6 C from the station mean194619501960197019801990200020102020
One stripe for each of 71 complete years at Guantanamo Bay NAS, 1946 to 2025. Blue stripes are years cooler than the station's own mean of 27.0 C (80.6 F); red stripes are warmer. The coolest year was 1950, at 25.5 C (77.8 F), and the warmest was 2015, at 28.4 C (83.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Guantanamo Bay NAS as warming stripes, 1946 to 2025
YearAnnual mean temperatureDifference from the station mean
194626.0 C-0.98 C
194726.7 C-0.33 C
194827.2 C+0.17 C
194925.8 C-1.23 C
195025.5 C-1.55 C
195126.0 C-1.00 C
195226.4 C-0.66 C
195326.5 C-0.53 C
195427.3 C+0.29 C
195526.8 C-0.22 C
195626.9 C-0.11 C
195727.5 C+0.45 C
195827.4 C+0.39 C
195927.7 C+0.68 C
196027.5 C+0.51 C
196127.4 C+0.34 C
196227.3 C+0.30 C
196327.1 C+0.12 C
196427.4 C+0.37 C
196526.8 C-0.19 C
196627.1 C+0.03 C
196726.0 C-0.98 C
196825.9 C-1.15 C
196926.2 C-0.80 C
197026.1 C-0.93 C
197126.4 C-0.64 C
197226.4 C-0.64 C
197326.4 C-0.63 C
197426.0 C-0.99 C
197526.6 C-0.47 C
197626.0 C-1.02 C
197726.5 C-0.53 C
197826.2 C-0.85 C
197926.7 C-0.33 C
198026.9 C-0.10 C
198126.9 C-0.15 C
198227.0 C-0.01 C
198327.9 C+0.83 C
198427.5 C+0.47 C
198527.6 C+0.55 C
198627.5 C+0.51 C
198728.2 C+1.21 C
198828.1 C+1.08 C
198927.8 C+0.73 C
199028.2 C+1.14 C
199128.2 C+1.17 C
199227.8 C+0.78 C
199327.4 C+0.39 C
199428.0 C+1.02 C
199527.5 C+0.45 C
199626.7 C-0.33 C
199727.0 C-0.02 C
199827.0 C+0.02 C
200126.6 C-0.40 C
200226.8 C-0.26 C
201026.7 C-0.31 C
201126.4 C-0.63 C
201226.5 C-0.48 C
201325.9 C-1.09 C
201427.3 C+0.25 C
201528.4 C+1.41 C
201627.8 C+0.80 C
201727.3 C+0.25 C
201827.4 C+0.37 C
201927.2 C+0.18 C
202027.5 C+0.49 C
202127.4 C+0.34 C
202227.2 C+0.20 C
202327.6 C+0.61 C
202428.1 C+1.03 C
202527.6 C+0.59 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1946 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 71 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Guantanamo Bay NAS
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1946 to 202571Rise
Mean daily maximum0.2 C (0.1 to 0.3) per decade0.3 F (0.1 to 0.5) per decade1946 to 202571Rise
Mean daily minimum0.08 C (0.03 to 0.12) per decade0.14 F (0.05 to 0.22) per decade1946 to 202571Rise

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
Yearly extremes at Guantanamo Bay NAS: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.9 C (103.8 F)201936.1 C (97.0 F)82
Coldest night (TNn)13.9 C (57.0 F)195616.7 C (62.1 F)82
Wettest day (Rx1day)257.0 mm (10.1 in)201173.9 mm (2.9 in)81
Wettest five days (Rx5day)454.4 mm (17.9 in)1948115.8 mm (4.6 in)79
Longest dry spell (CDD)110 days195134 days81

Hottest day (TXx)

Hottest day (TXx) at Guantanamo Bay NAS by year The hottest day of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 39.9 C (103.8 F) in 2019, marked on the chart; the median year is 36.1 C (97.0 F). 32343638401960198020002020Record: 39.9 C (103.8 F) in 2019
The hottest day of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 39.9 C (103.8 F) in 2019, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Guantanamo Bay NAS by year
YearHottest day (TXx)
194533.3 C (91.9 F)
194635.0 C (95.0 F)
194736.7 C (98.1 F)
194837.2 C (99.0 F)
194934.4 C (93.9 F)
195033.9 C (93.0 F)
195133.9 C (93.0 F)
195235.0 C (95.0 F)
195333.9 C (93.0 F)
195437.8 C (100.0 F)
195536.1 C (97.0 F)
195636.7 C (98.1 F)
195736.7 C (98.1 F)
195836.1 C (97.0 F)
195936.1 C (97.0 F)
196036.1 C (97.0 F)
196137.8 C (100.0 F)
196236.1 C (97.0 F)
196335.6 C (96.1 F)
196436.1 C (97.0 F)
196535.0 C (95.0 F)
196636.1 C (97.0 F)
196733.3 C (91.9 F)
196833.9 C (93.0 F)
196933.3 C (91.9 F)
197033.3 C (91.9 F)
197133.9 C (93.0 F)
197233.9 C (93.0 F)
197335.0 C (95.0 F)
197435.0 C (95.0 F)
197534.4 C (93.9 F)
197635.0 C (95.0 F)
197735.6 C (96.1 F)
197835.0 C (95.0 F)
197935.0 C (95.0 F)
198035.6 C (96.1 F)
198133.9 C (93.0 F)
198236.1 C (97.0 F)
198337.2 C (99.0 F)
198437.2 C (99.0 F)
198537.2 C (99.0 F)
198637.2 C (99.0 F)
198737.2 C (99.0 F)
198837.2 C (99.0 F)
198936.1 C (97.0 F)
199036.1 C (97.0 F)
199136.1 C (97.0 F)
199237.2 C (99.0 F)
199336.1 C (97.0 F)
199437.2 C (99.0 F)
199537.2 C (99.0 F)
199636.1 C (97.0 F)
199737.2 C (99.0 F)
199836.7 C (98.1 F)
199934.4 C (93.9 F)
200035.0 C (95.0 F)
200135.0 C (95.0 F)
200234.4 C (93.9 F)
200334.4 C (93.9 F)
200436.0 C (96.8 F)
200535.0 C (95.0 F)
200637.0 C (98.6 F)
200736.7 C (98.1 F)
200833.9 C (93.0 F)
200936.1 C (97.0 F)
201035.0 C (95.0 F)
201135.0 C (95.0 F)
201236.7 C (98.1 F)
201334.4 C (93.9 F)
201436.1 C (97.0 F)
201537.2 C (99.0 F)
201636.7 C (98.1 F)
201738.9 C (102.0 F)
201838.3 C (100.9 F)
201939.9 C (103.8 F)
202035.6 C (96.1 F)
202137.2 C (99.0 F)
202235.6 C (96.1 F)
202336.7 C (98.1 F)
202437.8 C (100.0 F)
202535.6 C (96.1 F)
202635.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Guantanamo Bay NAS by year The coldest night of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 13.9 C (57.0 F) in 1956, marked on the chart; the median year is 16.7 C (62.1 F). 12141618201960198020002020Record: 13.9 C (57.0 F) in 1956
The coldest night of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 13.9 C (57.0 F) in 1956, marked on the chart; the median year is 16.7 C (62.1 F).
Coldest night (TNn) at Guantanamo Bay NAS by year
YearColdest night (TNn)
194515.6 C (60.1 F)
194616.7 C (62.1 F)
194716.7 C (62.1 F)
194817.2 C (63.0 F)
194916.1 C (61.0 F)
195015.6 C (60.1 F)
195116.1 C (61.0 F)
195215.0 C (59.0 F)
195317.2 C (63.0 F)
195417.8 C (64.0 F)
195516.7 C (62.1 F)
195613.9 C (57.0 F)
195718.3 C (64.9 F)
195813.9 C (57.0 F)
195916.7 C (62.1 F)
196017.8 C (64.0 F)
196118.3 C (64.9 F)
196216.7 C (62.1 F)
196316.1 C (61.0 F)
196417.8 C (64.0 F)
196516.1 C (61.0 F)
196615.0 C (59.0 F)
196717.8 C (64.0 F)
196816.1 C (61.0 F)
196915.6 C (60.1 F)
197016.7 C (62.1 F)
197117.2 C (63.0 F)
197216.1 C (61.0 F)
197315.0 C (59.0 F)
197417.8 C (64.0 F)
197515.0 C (59.0 F)
197615.6 C (60.1 F)
197713.9 C (57.0 F)
197815.0 C (59.0 F)
197916.1 C (61.0 F)
198015.6 C (60.1 F)
198113.9 C (57.0 F)
198216.1 C (61.0 F)
198317.2 C (63.0 F)
198415.0 C (59.0 F)
198517.2 C (63.0 F)
198617.8 C (64.0 F)
198717.2 C (63.0 F)
198817.2 C (63.0 F)
198917.2 C (63.0 F)
199020.0 C (68.0 F)
199117.2 C (63.0 F)
199217.8 C (64.0 F)
199317.2 C (63.0 F)
199417.8 C (64.0 F)
199516.1 C (61.0 F)
199615.0 C (59.0 F)
199715.6 C (60.1 F)
199815.0 C (59.0 F)
199915.6 C (60.1 F)
200015.0 C (59.0 F)
200116.1 C (61.0 F)
200217.8 C (64.0 F)
200318.3 C (64.9 F)
200416.7 C (62.1 F)
200515.0 C (59.0 F)
200616.7 C (62.1 F)
200716.7 C (62.1 F)
200815.9 C (60.6 F)
200915.6 C (60.1 F)
201015.6 C (60.1 F)
201116.7 C (62.1 F)
201217.2 C (63.0 F)
201316.1 C (61.0 F)
201418.9 C (66.0 F)
201518.3 C (64.9 F)
201619.2 C (66.6 F)
201716.1 C (61.0 F)
201816.7 C (62.1 F)
201918.9 C (66.0 F)
202016.1 C (61.0 F)
202117.8 C (64.0 F)
202217.8 C (64.0 F)
202315.6 C (60.1 F)
202416.7 C (62.1 F)
202517.8 C (64.0 F)
202613.9 C (57.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Guantanamo Bay NAS by year The wettest day of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 257.0 mm (10.1 in) in 2011, marked on the chart; the median year is 73.9 mm (2.9 in). 01002003001960198020002020Record: 257.0 mm (10.1 in) in 2011
The wettest day of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 257.0 mm (10.1 in) in 2011, marked on the chart; the median year is 73.9 mm (2.9 in).
Wettest day (Rx1day) at Guantanamo Bay NAS by year
YearWettest day (Rx1day)
194551.6 mm (2.0 in)
194680.5 mm (3.2 in)
194764.0 mm (2.5 in)
1948158.8 mm (6.3 in)
1949128.8 mm (5.1 in)
195066.5 mm (2.6 in)
195145.0 mm (1.8 in)
195273.9 mm (2.9 in)
1953117.6 mm (4.6 in)
195484.8 mm (3.3 in)
195578.7 mm (3.1 in)
1956174.8 mm (6.9 in)
195734.0 mm (1.3 in)
195899.1 mm (3.9 in)
195919.8 mm (0.8 in)
196046.5 mm (1.8 in)
1961167.9 mm (6.6 in)
196273.7 mm (2.9 in)
1963193.0 mm (7.6 in)
196469.9 mm (2.8 in)
196558.2 mm (2.3 in)
1966132.6 mm (5.2 in)
196734.0 mm (1.3 in)
196835.3 mm (1.4 in)
196978.2 mm (3.1 in)
197037.3 mm (1.5 in)
197151.8 mm (2.0 in)
197295.0 mm (3.7 in)
197393.0 mm (3.7 in)
197453.6 mm (2.1 in)
1975104.6 mm (4.1 in)
197669.9 mm (2.8 in)
1977183.4 mm (7.2 in)
197862.0 mm (2.4 in)
1979155.4 mm (6.1 in)
198079.0 mm (3.1 in)
198163.0 mm (2.5 in)
198250.3 mm (2.0 in)
198351.1 mm (2.0 in)
198447.8 mm (1.9 in)
198546.5 mm (1.8 in)
1986100.1 mm (3.9 in)
198750.8 mm (2.0 in)
198852.6 mm (2.1 in)
198975.2 mm (3.0 in)
199094.2 mm (3.7 in)
199151.8 mm (2.0 in)
199251.8 mm (2.0 in)
1993168.9 mm (6.6 in)
1994162.1 mm (6.4 in)
199589.2 mm (3.5 in)
199658.9 mm (2.3 in)
199765.0 mm (2.6 in)
1998162.8 mm (6.4 in)
199928.2 mm (1.1 in)
20007.6 mm (0.30 in)
200165.5 mm (2.6 in)
200275.9 mm (3.0 in)
200377.5 mm (3.1 in)
2004151.4 mm (6.0 in)
2005153.9 mm (6.1 in)
2006125.5 mm (4.9 in)
2007142.5 mm (5.6 in)
200862.5 mm (2.5 in)
200986.9 mm (3.4 in)
201081.8 mm (3.2 in)
2011257.0 mm (10.1 in)
201275.7 mm (3.0 in)
201341.1 mm (1.6 in)
2014147.1 mm (5.8 in)
201537.3 mm (1.5 in)
201699.6 mm (3.9 in)
201779.8 mm (3.1 in)
201853.3 mm (2.1 in)
201966.3 mm (2.6 in)
202063.0 mm (2.5 in)
2021105.2 mm (4.1 in)
202261.2 mm (2.4 in)
202350.5 mm (2.0 in)
202490.2 mm (3.6 in)
2025n/a
202621.6 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Guantanamo Bay NAS by year The wettest five days of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 454.4 mm (17.9 in) in 1948, marked on the chart; the median year is 115.8 mm (4.6 in). 02004006001960198020002020Record: 454.4 mm (17.9 in) in 1948
The wettest five days of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 454.4 mm (17.9 in) in 1948, marked on the chart; the median year is 115.8 mm (4.6 in).
Wettest five days (Rx5day) at Guantanamo Bay NAS by year
YearWettest five days (Rx5day)
194596.2 mm (3.8 in)
194680.8 mm (3.2 in)
1947182.6 mm (7.2 in)
1948454.4 mm (17.9 in)
1949169.9 mm (6.7 in)
1950146.9 mm (5.8 in)
1951108.2 mm (4.3 in)
1952123.9 mm (4.9 in)
1953191.3 mm (7.5 in)
1954124.7 mm (4.9 in)
1955148.2 mm (5.8 in)
1956401.9 mm (15.8 in)
195740.6 mm (1.6 in)
1958102.7 mm (4.0 in)
195934.7 mm (1.4 in)
1960135.7 mm (5.3 in)
1961344.4 mm (13.6 in)
196290.0 mm (3.5 in)
1963436.8 mm (17.2 in)
1964110.4 mm (4.3 in)
196569.3 mm (2.7 in)
1966176.6 mm (7.0 in)
196737.5 mm (1.5 in)
196866.0 mm (2.6 in)
196997.6 mm (3.8 in)
197059.1 mm (2.3 in)
197185.4 mm (3.4 in)
1972212.9 mm (8.4 in)
1973204.6 mm (8.1 in)
1974152.9 mm (6.0 in)
1975113.5 mm (4.5 in)
197699.1 mm (3.9 in)
1977228.5 mm (9.0 in)
1978100.0 mm (3.9 in)
1979244.3 mm (9.6 in)
198098.8 mm (3.9 in)
198188.2 mm (3.5 in)
1982132.3 mm (5.2 in)
198361.0 mm (2.4 in)
198459.8 mm (2.4 in)
198571.8 mm (2.8 in)
1986189.4 mm (7.5 in)
198777.7 mm (3.1 in)
198882.1 mm (3.2 in)
1989105.7 mm (4.2 in)
1990200.5 mm (7.9 in)
199183.3 mm (3.3 in)
199252.6 mm (2.1 in)
1993377.5 mm (14.9 in)
1994358.7 mm (14.1 in)
1995162.7 mm (6.4 in)
1996122.7 mm (4.8 in)
199773.2 mm (2.9 in)
1998230.6 mm (9.1 in)
19990.6 mm (0.02 in)
2000n/a
2001109.5 mm (4.3 in)
2002151.8 mm (6.0 in)
2003138.2 mm (5.4 in)
2004168.3 mm (6.6 in)
2005312.7 mm (12.3 in)
2006196.1 mm (7.7 in)
2007358.0 mm (14.1 in)
2008120.6 mm (4.7 in)
2009129.1 mm (5.1 in)
2010115.8 mm (4.6 in)
2011441.6 mm (17.4 in)
2012102.0 mm (4.0 in)
201331.1 mm (1.2 in)
201428.5 mm (1.1 in)
201520.3 mm (0.8 in)
2016128.9 mm (5.1 in)
2017103.4 mm (4.1 in)
201862.8 mm (2.5 in)
2019104.1 mm (4.1 in)
2020147.4 mm (5.8 in)
202121.7 mm (0.9 in)
2022153.4 mm (6.0 in)
2023125.2 mm (4.9 in)
2024106.5 mm (4.2 in)
2025n/a
2026n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Guantanamo Bay NAS by year The longest dry spell of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 110 days in 1951, marked on the chart; the median year is 34 days. 0501001501960198020002020Record: 110 days in 1951
The longest dry spell of the year at Guantanamo Bay NAS, 1945 to 2026. The record is 110 days in 1951, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Guantanamo Bay NAS by year
YearLongest dry spell (CDD)
194541 days
194634 days
194730 days
194855 days
1949106 days
195038 days
1951110 days
195251 days
195372 days
195431 days
195571 days
195636 days
195735 days
195827 days
195960 days
196024 days
196126 days
196231 days
196332 days
196432 days
196560 days
196629 days
196750 days
196866 days
196987 days
197041 days
197138 days
197248 days
197363 days
197436 days
197561 days
197630 days
197753 days
197839 days
197931 days
198048 days
198148 days
198257 days
198344 days
198436 days
198540 days
198635 days
198734 days
198833 days
198944 days
199018 days
199152 days
199237 days
199331 days
199432 days
199523 days
199630 days
199737 days
199854 days
19993 days
20002 days
200177 days
200273 days
200350 days
200421 days
200539 days
20069 days
200714 days
200810 days
20094 days
20102 days
20112 days
20122 days
20132 days
20142 days
20152 days
20164 days
20173 days
20183 days
20193 days
20203 days
20213 days
20222 days
20233 days
20242 days
2025n/a
20262 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

57 years, 1946 to 2005

A day with at least 75.6 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 256.0 mm (10.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Guantanamo Bay NAS: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years75.6 mm (3.0 in)
5 years114.8 mm (4.5 in)
10 years144.0 mm (5.7 in)
25 years185.2 mm (7.3 in)
50 years219.1 mm (8.6 in)
100 years256.0 mm (10.1 in)Longer than the 57 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, 57 years of values from 1946 to 2005.

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: 193.0 mm (7.6 in) in 1963; 183.4 mm (7.2 in) in 1977; 174.8 mm (6.9 in) in 1956.

Download the Data

  • Data for Guantanamo Bay NAS standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Guantanamo Bay NAS threshold days by year: CSV or JSON. Field meanings are on the data page.

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 (2026-10-14).