Daily records
Page built 2026-10-19
Data as of 2026-10-17
Search
Built 2026-10-19 (19 October 2026)

Aibonito 1 S Weather Records (RQC00660158)

Record envelope, standing records and threshold days for Aibonito 1 S (RQC00660158), PR, Puerto Rico [United States], with 121 years of record.

Key Facts for Aibonito 1 S

  • Aibonito 1 S (RQC00660158) is a weather station in PR, Puerto Rico [United States] at 18.13 latitude and -66.26 longitude, 710 m (2,330 ft) above sea level.
  • The station reports from 1906 to 2026, 121 years of record.
  • 1,464 records set at Aibonito 1 S still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Aibonito 1 S tied a daily record high minimum temperature of 21.7 C (71.1 F) on 14 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: PR, Puerto Rico [United States], 18.13 latitude, -66.26 longitude.
  • Elevation: 710 m (2,330 ft).
  • Period of record: 1906 to 2026, 121 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

10 days at or beyond a record
Daily record high and record low at Aibonito 1 S, with 2026 drawn through them The band shows the record high and record low for each calendar day at Aibonito 1 S. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Aibonito 1 S. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Aibonito 1 S, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan32.8 C (91.0 F)6.1 C (43.0 F)26.7 C (80.1 F)16.1 C (61.0 F)
Feb32.2 C (90.0 F)6.1 C (43.0 F)26.1 C (79.0 F)15.6 C (60.1 F)
Mar33.3 C (91.9 F)4.4 C (39.9 F)26.1 C (79.0 F)16.7 C (62.1 F)
Apr33.9 C (93.0 F)7.2 C (45.0 F)28.3 C (82.9 F)15.0 C (59.0 F)
May33.3 C (91.9 F)10.0 C (50.0 F)29.4 C (84.9 F)18.3 C (64.9 F)
Jun32.8 C (91.0 F)10.6 C (51.1 F)30.6 C (87.1 F)18.3 C (64.9 F)
Jul35.0 C (95.0 F)12.2 C (54.0 F)31.1 C (88.0 F)19.4 C (66.9 F)
Aug34.4 C (93.9 F)12.2 C (54.0 F)31.7 C (89.1 F)20.6 C (69.1 F)
Sep36.7 C (98.1 F)10.6 C (51.1 F)31.7 C (89.1 F)18.9 C (66.0 F)
Oct34.4 C (93.9 F)8.9 C (48.0 F)29.4 C (84.9 F)20.0 C (68.0 F)
Nov33.3 C (91.9 F)7.8 C (46.0 F)n/an/a
Dec33.3 C (91.9 F)8.3 C (46.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Aibonito 1 S by the year they were set 1,464 records at Aibonito 1 S still stand. 2003 holds the most, with 121. 0501001501906: 191907: 351908: 581909: 141910: 41911: 251912: 461913: 891914: 891915: 261916: 171917: 251918: 191920: 671921: 211922: 571923: 171924: 191925: 111926: 441927: 151950: 81951: 91952: 71953: 71954: 111955: 131956: 781957: 351958: 131959: 31960: 71961: 61962: 91963: 421964: 161965: 141966: 61967: 901968: 141969: 31970: 61971: 31972: 31973: 41974: 51975: 31976: 11993: 21994: 11995: 71996: 81997: 41998: 81999: 52000: 62001: 22002: 62003: 1212004: 352005: 62006: 32007: 52008: 92009: 52010: 72011: 52012: 72013: 42014: 22016: 32017: 12018: 22019: 132020: 132022: 12023: 152024: 212025: 12026: 31906191419231953196119691993200120092018
1,464 records at Aibonito 1 S still stand. 2003 holds the most, with 121.
Standing records at Aibonito 1 S by the year they were set
Year setStanding records
190619
190735
190858
190914
19104
191125
191246
191389
191489
191526
191617
191725
191819
192067
192121
192257
192317
192419
192511
192644
192715
19508
19519
19527
19537
195411
195513
195678
195735
195813
19593
19607
19616
19629
196342
196416
196514
19666
196790
196814
19693
19706
19713
19723
19734
19745
19753
19761
19932
19941
19957
19968
19974
19988
19995
20006
20012
20026
2003121
200435
20056
20063
20075
20089
20095
20107
20115
20127
20134
20142
20163
20171
20182
201913
202013
20221
202315
202421
20251
20263

All-Time Record Progression

7 new records
When Aibonito 1 S set new all-time records 7 all-time records were set at Aibonito 1 S between 16 June 1943 and 3 March 2004. Each dot is a new record. Record daily precipitationRecord low maximum temperature16 June 1943: Record daily precipitation 233.7 mm (9.2 in)6 September 1960: Record daily precipitation 271.3 mm (10.7 in)9 October 1970: Record daily precipitation 431.8 mm (17.0 in)5 February 2003: Record low maximum temperature 17.2 C (63.0 F)30 December 2003: Record low maximum temperature 16.1 C (61.0 F)7 January 2004: Record low maximum temperature 15.6 C (60.1 F)3 March 2004: Record low maximum temperature 15.0 C (59.0 F)195019601970198019902000
7 all-time records were set at Aibonito 1 S between 16 June 1943 and 3 March 2004. Each dot is a new record.
When Aibonito 1 S set new all-time records
DateKindDetail
1943-06-16Record daily precipitationRecord daily precipitation 233.7 mm (9.2 in)
1960-09-06Record daily precipitationRecord daily precipitation 271.3 mm (10.7 in)
1970-10-09Record daily precipitationRecord daily precipitation 431.8 mm (17.0 in)
2003-02-05Record low maximum temperatureRecord low maximum temperature 17.2 C (63.0 F)
2003-12-30Record low maximum temperatureRecord low maximum temperature 16.1 C (61.0 F)
2004-01-07Record low maximum temperatureRecord low maximum temperature 15.6 C (60.1 F)
2004-03-03Record low maximum temperatureRecord low maximum temperature 15.0 C (59.0 F)

Wettest Day of Each Month

Oct: 431.8 mm (17.0 in)
Record daily precipitation for each month at Aibonito 1 S The wettest day on record for each calendar month at Aibonito 1 S. The most was 431.8 mm (17.0 in) on 9 October 1970. 0200400600 Jan: 56.1 mm (2.2 in), 17 January 1945 Jan Feb: 165.1 mm (6.5 in), 5 February 1998 Feb Mar: 74.7 mm (2.9 in), 30 March 2017 Mar Apr: 138.4 mm (5.4 in), 14 April 1927 Apr May: 138.4 mm (5.4 in), 7 May 1932 May Jun: 233.7 mm (9.2 in), 16 June 1943 Jun Jul: 150.9 mm (5.9 in), 24 July 1926 Jul Aug: 224.3 mm (8.8 in), 28 August 1970 Aug Sep: 406.4 mm (16.0 in), 22 September 1998 Sep Oct: 431.8 mm (17.0 in), 9 October 1970 Oct Nov: 194.3 mm (7.6 in), 14 November 2003 Nov Dec: 100.6 mm (4.0 in), 9 December 1970 Dec
The wettest day on record for each calendar month at Aibonito 1 S. The most was 431.8 mm (17.0 in) on 9 October 1970.
Record daily precipitation for each month at Aibonito 1 S
MonthRecord daily precipitation (mm)Date
Jan56.1 mm (2.2 in)17 January 1945
Feb165.1 mm (6.5 in)5 February 1998
Mar74.7 mm (2.9 in)30 March 2017
Apr138.4 mm (5.4 in)14 April 1927
May138.4 mm (5.4 in)7 May 1932
Jun233.7 mm (9.2 in)16 June 1943
Jul150.9 mm (5.9 in)24 July 1926
Aug224.3 mm (8.8 in)28 August 1970
Sep406.4 mm (16.0 in)22 September 1998
Oct431.8 mm (17.0 in)9 October 1970
Nov194.3 mm (7.6 in)14 November 2003
Dec100.6 mm (4.0 in)9 December 1970

Period of Record Coverage

1906 to 2026
Days with data per year at Aibonito 1 S 83 years of record at Aibonito 1 S, 1906 to 2026. 29 years have data for under 90 percent of days and are left out of rankings: 1908, 1910, 1914, 1918, 1920, 1927, 1951, 1952 and others. 1906: 365 of 365 days1907: 365 of 365 days1908: 288 of 366 days1909: 364 of 365 days1910: 77 of 365 days1911: 365 of 365 days1912: 366 of 366 days1913: 364 of 365 days1914: 256 of 365 days1915: 358 of 365 days1916: 366 of 366 days1917: 363 of 365 days1918: 250 of 365 days1920: 293 of 366 days1921: 364 of 365 days1922: 339 of 365 days1923: 362 of 365 days1924: 365 of 366 days1925: 365 of 365 days1926: 356 of 365 days1927: 304 of 365 days1950: 360 of 365 days1951: 270 of 365 days1952: 315 of 366 days1953: 271 of 365 days1954: 353 of 365 days1955: 360 of 365 days1956: 302 of 366 days1957: 285 of 365 days1958: 320 of 365 days1959: 361 of 365 days1960: 361 of 366 days1961: 293 of 365 days1962: 293 of 365 days1963: 268 of 365 days1964: 290 of 366 days1965: 85 of 365 days1966: 294 of 365 days1967: 353 of 365 days1968: 332 of 366 days1969: 326 of 365 days1970: 359 of 365 days1971: 365 of 365 days1972: 276 of 366 days1973: 241 of 365 days1974: 363 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 151 of 365 days1993: 245 of 365 days1994: 365 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 321 of 365 days1999: 363 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 272 of 365 days2006: 334 of 365 days2007: 364 of 365 days2008: 334 of 366 days2009: 363 of 365 days2010: 359 of 365 days2011: 360 of 365 days2012: 363 of 366 days2013: 332 of 365 days2014: 290 of 365 days2015: 365 of 365 days2016: 365 of 366 days2017: 255 of 365 days2018: 322 of 365 days2019: 363 of 365 days2020: 366 of 366 days2021: 355 of 365 days2022: 364 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 364 of 365 days2026: 288 of 365 days192019501965199520102025
83 years of record at Aibonito 1 S, 1906 to 2026. 29 years have data for under 90 percent of days and are left out of rankings: 1908, 1910, 1914, 1918, 1920, 1927, 1951, 1952 and others.
Days with data per year at Aibonito 1 S
YearDays with dataShare of yearComplete
1906365100%Yes
1907365100%Yes
190828879%No
1909364100%Yes
19107721%No
1911365100%Yes
1912366100%Yes
1913364100%Yes
191425670%No
191535898%Yes
1916366100%Yes
191736399%Yes
191825068%No
192029380%No
1921364100%Yes
192233993%Yes
192336299%Yes
1924365100%Yes
1925365100%Yes
192635698%Yes
192730483%No
195036099%Yes
195127074%No
195231586%No
195327174%No
195435397%Yes
195536099%Yes
195630283%No
195728578%No
195832088%No
195936199%Yes
196036199%Yes
196129380%No
196229380%No
196326873%No
196429079%No
19658523%No
196629481%No
196735397%Yes
196833291%Yes
196932689%No
197035998%Yes
1971365100%Yes
197227675%No
197324166%No
197436399%Yes
1975364100%Yes
1976366100%Yes
197715141%No
199324567%No
1994365100%Yes
1995364100%Yes
1996366100%Yes
1997364100%Yes
199832188%No
199936399%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
200527275%No
200633492%Yes
2007364100%Yes
200833491%Yes
200936399%Yes
201035998%Yes
201136099%Yes
201236399%Yes
201333291%Yes
201429079%No
2015365100%Yes
2016365100%Yes
201725570%No
201832288%No
201936399%Yes
2020366100%Yes
202135597%Yes
2022364100%Yes
2023365100%Yes
2024366100%Yes
2025364100%Yes
202628879%No

Latest Records

20
Latest records at Aibonito 1 S
DateStationRecordValueBeat old record byOld record stoodSignificance
14 October 2026Aibonito 1 S, PRdaily high min (Tie, Provisional)21.7 C (71.1 F)tie69 years7 of 100 (Routine)
17 September 2026Aibonito 1 S, PRdaily high min (Tie, Provisional)21.7 C (71.1 F)tie103 years10 of 100 (Routine)
11 September 2026Aibonito 1 S, PRdaily high min (Provisional)22.8 C (73.0 F)1.1 C (2.0 F)20 years21 of 100 (Routine)
9 September 2026Aibonito 1 S, PRdaily high min (Tie, Provisional)22.2 C (72.0 F)tie1 year2 of 100 (Routine)
5 September 2026Aibonito 1 S, PRdaily high max (Tie, Provisional)31.1 C (88.0 F)tie104 years10 of 100 (Routine)
30 August 2026Aibonito 1 S, PRdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)1 year13 of 100 (Routine)
28 August 2026Aibonito 1 S, PRdaily high min (Tie, Provisional)22.2 C (72.0 F)tie115 years10 of 100 (Routine)
24 August 2026Aibonito 1 S, PRdaily high max (Provisional)31.1 C (88.0 F)0.5 C (0.9 F)99 years41 of 100 (Notable)
19 August 2026Aibonito 1 S, PRdaily high max (Provisional)31.7 C (89.1 F)1.1 C (2.0 F)108 years46 of 100 (Notable)
15 August 2026Aibonito 1 S, PRdaily high min (Tie)21.7 C (71.1 F)tie8 years3 of 100 (Routine)
6 August 2026Aibonito 1 S, PRdaily high max (Tie)31.1 C (88.0 F)tie101 years10 of 100 (Routine)
31 July 2026Aibonito 1 S, PRdaily high max (Tie)30.6 C (87.1 F)tie119 years10 of 100 (Routine)
22 July 2026Aibonito 1 S, PRdaily high min (Tie)21.1 C (70.0 F)tie63 years7 of 100 (Routine)
21 July 2026Aibonito 1 S, PRdaily high max30.6 C (87.1 F)0.6 C (1.1 F)104 years43 of 100 (Notable)
20 July 2026Aibonito 1 S, PRdaily high max (Tie)30.0 C (86.0 F)tie119 years10 of 100 (Routine)
19 July 2026Aibonito 1 S, PRdaily high max (Tie)30.0 C (86.0 F)tie119 years10 of 100 (Routine)
12 July 2026Aibonito 1 S, PRdaily high max30.6 C (87.1 F)0.6 C (1.1 F)108 years43 of 100 (Notable)
5 July 2026Aibonito 1 S, PRdaily high max30.6 C (87.1 F)0.6 C (1.1 F)111 years43 of 100 (Notable)
5 July 2026Aibonito 1 S, PRdaily high min (Tie)21.7 C (71.1 F)tie72 years7 of 100 (Routine)
29 June 2026Aibonito 1 S, PRdaily high min (Tie)21.7 C (71.1 F)tie120 years10 of 100 (Routine)

Climate Trend

48 complete years, 1906 to 2025
Annual mean temperature at Aibonito 1 S as warming stripes, 1906 to 2025 One stripe for each of 48 complete years at Aibonito 1 S, 1906 to 2025. Blue stripes are years cooler than the station's own mean of 21.9 C (71.4 F); red stripes are warmer. The coolest year was 2003, at 18.5 C (65.2 F), and the warmest was 2024, at 23.3 C (74.0 F). The strongest colour marks a difference of 3.5 C (6.3 F). 1906: 21.8 C, -0.1 C from the station mean1907: 22.2 C, +0.3 C from the station mean1909: 22.1 C, +0.2 C from the station mean1911: 21.8 C, 0.0 C from the station mean1912: 22.3 C, +0.4 C from the station mean1913: 20.1 C, -1.7 C from the station mean1915: 22.1 C, +0.3 C from the station mean1916: 21.7 C, -0.1 C from the station mean1917: 21.8 C, -0.1 C from the station mean1921: 22.2 C, +0.3 C from the station mean1923: 21.8 C, -0.1 C from the station mean1924: 22.5 C, +0.6 C from the station mean1926: 21.5 C, -0.4 C from the station mean1950: 21.0 C, -0.9 C from the station mean1954: 21.7 C, -0.1 C from the station mean1955: 21.9 C, 0.0 C from the station mean1959: 22.1 C, +0.3 C from the station mean1960: 22.5 C, +0.6 C from the station mean1967: 19.0 C, -2.9 C from the station mean1970: 22.0 C, +0.2 C from the station mean1971: 21.8 C, -0.1 C from the station mean1974: 21.7 C, -0.2 C from the station mean1975: 21.5 C, -0.4 C from the station mean1976: 21.9 C, +0.1 C from the station mean1994: 22.2 C, +0.3 C from the station mean1995: 22.2 C, +0.3 C from the station mean1996: 21.7 C, -0.2 C from the station mean1997: 22.3 C, +0.4 C from the station mean1999: 21.8 C, -0.1 C from the station mean2000: 21.7 C, -0.2 C from the station mean2001: 22.2 C, +0.3 C from the station mean2002: 22.4 C, +0.5 C from the station mean2003: 18.5 C, -3.4 C from the station mean2004: 21.0 C, -0.9 C from the station mean2007: 22.0 C, +0.1 C from the station mean2009: 21.6 C, -0.3 C from the station mean2010: 21.7 C, -0.2 C from the station mean2011: 21.4 C, -0.5 C from the station mean2012: 21.6 C, -0.3 C from the station mean2015: 22.6 C, +0.8 C from the station mean2016: 22.4 C, +0.6 C from the station mean2019: 22.4 C, +0.6 C from the station mean2020: 23.0 C, +1.1 C from the station mean2021: 22.6 C, +0.7 C from the station mean2022: 22.5 C, +0.6 C from the station mean2023: 22.9 C, +1.0 C from the station mean2024: 23.3 C, +1.4 C from the station mean2025: 22.9 C, +1.0 C from the station mean190619201930194019501960197019801990200020102020
One stripe for each of 48 complete years at Aibonito 1 S, 1906 to 2025. Blue stripes are years cooler than the station's own mean of 21.9 C (71.4 F); red stripes are warmer. The coolest year was 2003, at 18.5 C (65.2 F), and the warmest was 2024, at 23.3 C (74.0 F). The strongest colour marks a difference of 3.5 C (6.3 F).
Annual mean temperature at Aibonito 1 S as warming stripes, 1906 to 2025
YearAnnual mean temperatureDifference from the station mean
190621.8 C-0.11 C
190722.2 C+0.29 C
190922.1 C+0.23 C
191121.8 C-0.03 C
191222.3 C+0.43 C
191320.1 C-1.74 C
191522.1 C+0.27 C
191621.7 C-0.13 C
191721.8 C-0.10 C
192122.2 C+0.29 C
192321.8 C-0.09 C
192422.5 C+0.62 C
192621.5 C-0.36 C
195021.0 C-0.86 C
195421.7 C-0.14 C
195521.9 C-0.02 C
195922.1 C+0.27 C
196022.5 C+0.62 C
196719.0 C-2.85 C
197022.0 C+0.17 C
197121.8 C-0.05 C
197421.7 C-0.16 C
197521.5 C-0.42 C
197621.9 C+0.07 C
199422.2 C+0.29 C
199522.2 C+0.32 C
199621.7 C-0.22 C
199722.3 C+0.41 C
199921.8 C-0.08 C
200021.7 C-0.17 C
200122.2 C+0.34 C
200222.4 C+0.51 C
200318.5 C-3.41 C
200421.0 C-0.91 C
200722.0 C+0.15 C
200921.6 C-0.30 C
201021.7 C-0.20 C
201121.4 C-0.52 C
201221.6 C-0.27 C
201522.6 C+0.76 C
201622.4 C+0.57 C
201922.4 C+0.56 C
202023.0 C+1.10 C
202122.6 C+0.71 C
202222.5 C+0.65 C
202322.9 C+1.05 C
202423.3 C+1.44 C
202522.9 C+1.04 C

The fitted trend in annual mean temperature here over 1906 to 2025 is 0.04 C (-0.02 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.07 F (-0.04 to 0.18) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Aibonito 1 S
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.04 C (-0.02 to 0.10) per decade0.07 F (-0.04 to 0.18) per decade1906 to 202548Not clearly different from zero
Mean daily maximum-0.12 C (-0.19 to -0.05) per decade-0.2 F (-0.3 to -0.1) per decade1906 to 202548Fall
Mean daily minimum0.2 C (0.1 to 0.3) per decade0.3 F (0.2 to 0.5) per decade1906 to 202548Rise

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

1906 to 2026
Yearly extremes at Aibonito 1 S: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.7 C (98.1 F)192030.6 C (87.1 F)83
Coldest night (TNn)4.4 C (39.9 F)191112.8 C (55.0 F)83
Wettest day (Rx1day)431.8 mm (17.0 in)197078.7 mm (3.1 in)103
Wettest five days (Rx5day)830.6 mm (32.7 in)1970153.4 mm (6.0 in)103
Longest dry spell (CDD)65 days191216 days103

Hottest day (TXx)

Hottest day (TXx) at Aibonito 1 S by year The hottest day of the year at Aibonito 1 S, 1906 to 2026. The record is 36.7 C (98.1 F) in 1920, marked on the chart; the median year is 30.6 C (87.1 F). 25303540192019401960198020002020Record: 36.7 C (98.1 F) in 1920
The hottest day of the year at Aibonito 1 S, 1906 to 2026. The record is 36.7 C (98.1 F) in 1920, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Aibonito 1 S by year
YearHottest day (TXx)
190631.1 C (88.0 F)
190732.2 C (90.0 F)
190832.8 C (91.0 F)
190931.7 C (89.1 F)
191030.0 C (86.0 F)
191132.2 C (90.0 F)
191233.3 C (91.9 F)
191330.0 C (86.0 F)
191434.4 C (93.9 F)
191533.9 C (93.0 F)
191631.1 C (88.0 F)
191733.3 C (91.9 F)
191834.4 C (93.9 F)
1919n/a
192036.7 C (98.1 F)
192132.2 C (90.0 F)
192236.1 C (97.0 F)
192331.1 C (88.0 F)
192433.3 C (91.9 F)
192530.6 C (87.1 F)
192631.1 C (88.0 F)
192730.6 C (87.1 F)
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
195029.4 C (84.9 F)
195129.4 C (84.9 F)
195231.7 C (89.1 F)
195331.7 C (89.1 F)
195430.6 C (87.1 F)
195533.3 C (91.9 F)
195631.1 C (88.0 F)
195729.4 C (84.9 F)
195830.0 C (86.0 F)
195930.0 C (86.0 F)
196031.1 C (88.0 F)
196128.9 C (84.0 F)
196230.6 C (87.1 F)
196333.3 C (91.9 F)
196433.3 C (91.9 F)
196528.9 C (84.0 F)
196630.0 C (86.0 F)
196728.9 C (84.0 F)
196835.0 C (95.0 F)
196933.3 C (91.9 F)
197030.6 C (87.1 F)
197130.0 C (86.0 F)
197231.7 C (89.1 F)
197330.6 C (87.1 F)
197430.6 C (87.1 F)
197529.4 C (84.9 F)
197630.6 C (87.1 F)
197730.0 C (86.0 F)
199327.8 C (82.0 F)
199430.6 C (87.1 F)
199530.6 C (87.1 F)
199631.7 C (89.1 F)
199731.7 C (89.1 F)
199829.4 C (84.9 F)
199928.9 C (84.0 F)
200031.7 C (89.1 F)
200130.6 C (87.1 F)
200230.6 C (87.1 F)
200325.0 C (77.0 F)
200429.4 C (84.9 F)
200530.6 C (87.1 F)
200628.9 C (84.0 F)
200730.6 C (87.1 F)
200831.1 C (88.0 F)
200930.0 C (86.0 F)
201030.0 C (86.0 F)
201128.9 C (84.0 F)
201230.0 C (86.0 F)
201330.0 C (86.0 F)
201430.6 C (87.1 F)
201531.1 C (88.0 F)
201631.1 C (88.0 F)
201730.6 C (87.1 F)
201830.0 C (86.0 F)
201930.0 C (86.0 F)
202032.2 C (90.0 F)
202130.6 C (87.1 F)
202230.0 C (86.0 F)
202331.7 C (89.1 F)
202430.0 C (86.0 F)
202531.1 C (88.0 F)
202631.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at Aibonito 1 S by year The coldest night of the year at Aibonito 1 S, 1906 to 2026. The record is 4.4 C (39.9 F) in 1911, marked on the chart; the median year is 12.8 C (55.0 F). 05101520192019401960198020002020Record: 4.4 C (39.9 F) in 1911
The coldest night of the year at Aibonito 1 S, 1906 to 2026. The record is 4.4 C (39.9 F) in 1911, marked on the chart; the median year is 12.8 C (55.0 F).
Coldest night (TNn) at Aibonito 1 S by year
YearColdest night (TNn)
19066.1 C (43.0 F)
19077.8 C (46.0 F)
190810.0 C (50.0 F)
19098.9 C (48.0 F)
19106.1 C (43.0 F)
19114.4 C (39.9 F)
19128.9 C (48.0 F)
19138.9 C (48.0 F)
19148.9 C (48.0 F)
19158.9 C (48.0 F)
19167.2 C (45.0 F)
19176.7 C (44.1 F)
19186.7 C (44.1 F)
1919n/a
19209.4 C (48.9 F)
19218.3 C (46.9 F)
19229.4 C (48.9 F)
19237.2 C (45.0 F)
19248.3 C (46.9 F)
19258.3 C (46.9 F)
19267.8 C (46.0 F)
19278.3 C (46.9 F)
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
195012.2 C (54.0 F)
195112.2 C (54.0 F)
195215.0 C (59.0 F)
195315.0 C (59.0 F)
195414.4 C (57.9 F)
195512.2 C (54.0 F)
195613.9 C (57.0 F)
195715.6 C (60.1 F)
195815.6 C (60.1 F)
195915.6 C (60.1 F)
196015.6 C (60.1 F)
196115.0 C (59.0 F)
196211.1 C (52.0 F)
196313.9 C (57.0 F)
196413.9 C (57.0 F)
196513.3 C (55.9 F)
196611.1 C (52.0 F)
196711.1 C (52.0 F)
19689.4 C (48.9 F)
196912.2 C (54.0 F)
197011.1 C (52.0 F)
197112.8 C (55.0 F)
197213.3 C (55.9 F)
197312.2 C (54.0 F)
197411.1 C (52.0 F)
197512.8 C (55.0 F)
197610.6 C (51.1 F)
197711.7 C (53.1 F)
199316.7 C (62.1 F)
199415.6 C (60.1 F)
199513.9 C (57.0 F)
199615.0 C (59.0 F)
199712.2 C (54.0 F)
199815.0 C (59.0 F)
199913.3 C (55.9 F)
200012.2 C (54.0 F)
200112.8 C (55.0 F)
200213.9 C (57.0 F)
200310.6 C (51.1 F)
200410.6 C (51.1 F)
200512.8 C (55.0 F)
200613.3 C (55.9 F)
200713.9 C (57.0 F)
20086.1 C (43.0 F)
200911.7 C (53.1 F)
201012.8 C (55.0 F)
201112.8 C (55.0 F)
201213.3 C (55.9 F)
201311.7 C (53.1 F)
201413.3 C (55.9 F)
201515.6 C (60.1 F)
201615.6 C (60.1 F)
201714.4 C (57.9 F)
201814.4 C (57.9 F)
201914.4 C (57.9 F)
202016.1 C (61.0 F)
202115.6 C (60.1 F)
202215.6 C (60.1 F)
202315.6 C (60.1 F)
202414.4 C (57.9 F)
202513.9 C (57.0 F)
202615.0 C (59.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Aibonito 1 S by year The wettest day of the year at Aibonito 1 S, 1906 to 2026. The record is 431.8 mm (17.0 in) in 1970, marked on the chart; the median year is 78.7 mm (3.1 in). 0200400600192019401960198020002020Record: 431.8 mm (17.0 in) in 1970
The wettest day of the year at Aibonito 1 S, 1906 to 2026. The record is 431.8 mm (17.0 in) in 1970, marked on the chart; the median year is 78.7 mm (3.1 in).
Wettest day (Rx1day) at Aibonito 1 S by year
YearWettest day (Rx1day)
190650.8 mm (2.0 in)
190750.5 mm (2.0 in)
190878.7 mm (3.1 in)
1909189.2 mm (7.4 in)
191023.9 mm (0.9 in)
191181.3 mm (3.2 in)
1912115.8 mm (4.6 in)
191340.6 mm (1.6 in)
1914113.0 mm (4.4 in)
191563.5 mm (2.5 in)
1916205.7 mm (8.1 in)
191768.6 mm (2.7 in)
191858.4 mm (2.3 in)
1919101.6 mm (4.0 in)
192069.9 mm (2.8 in)
192148.3 mm (1.9 in)
192263.5 mm (2.5 in)
192394.0 mm (3.7 in)
1924176.3 mm (6.9 in)
192582.8 mm (3.3 in)
1926150.9 mm (5.9 in)
1927138.4 mm (5.4 in)
193050.8 mm (2.0 in)
193161.0 mm (2.4 in)
1932138.4 mm (5.4 in)
193378.7 mm (3.1 in)
193456.4 mm (2.2 in)
1935108.0 mm (4.3 in)
1936142.0 mm (5.6 in)
1937105.9 mm (4.2 in)
193899.3 mm (3.9 in)
193976.7 mm (3.0 in)
194084.1 mm (3.3 in)
194198.8 mm (3.9 in)
194266.0 mm (2.6 in)
1943233.7 mm (9.2 in)
194468.6 mm (2.7 in)
194574.7 mm (2.9 in)
194624.9 mm (1.0 in)
194761.0 mm (2.4 in)
194838.1 mm (1.5 in)
1950102.1 mm (4.0 in)
195147.5 mm (1.9 in)
1952105.7 mm (4.2 in)
195375.4 mm (3.0 in)
195478.7 mm (3.1 in)
195555.4 mm (2.2 in)
1956116.1 mm (4.6 in)
195774.9 mm (2.9 in)
195850.0 mm (2.0 in)
195935.6 mm (1.4 in)
1960271.3 mm (10.7 in)
1961105.2 mm (4.1 in)
1962108.0 mm (4.3 in)
196374.9 mm (2.9 in)
196438.1 mm (1.5 in)
196527.2 mm (1.1 in)
196648.3 mm (1.9 in)
196733.5 mm (1.3 in)
196843.7 mm (1.7 in)
1969140.2 mm (5.5 in)
1970431.8 mm (17.0 in)
197173.7 mm (2.9 in)
197278.7 mm (3.1 in)
197355.9 mm (2.2 in)
197477.5 mm (3.1 in)
1975152.4 mm (6.0 in)
197650.8 mm (2.0 in)
197721.6 mm (0.9 in)
199356.4 mm (2.2 in)
199455.6 mm (2.2 in)
1995101.6 mm (4.0 in)
1996215.9 mm (8.5 in)
1997219.5 mm (8.6 in)
1998406.4 mm (16.0 in)
1999104.1 mm (4.1 in)
2000193.0 mm (7.6 in)
2001142.2 mm (5.6 in)
200273.4 mm (2.9 in)
2003194.3 mm (7.6 in)
2004381.0 mm (15.0 in)
200588.9 mm (3.5 in)
200668.6 mm (2.7 in)
2007133.4 mm (5.3 in)
2008131.3 mm (5.2 in)
200974.9 mm (2.9 in)
2010152.7 mm (6.0 in)
2011167.6 mm (6.6 in)
201272.9 mm (2.9 in)
201356.4 mm (2.2 in)
201496.5 mm (3.8 in)
2015100.8 mm (4.0 in)
201657.2 mm (2.3 in)
201794.0 mm (3.7 in)
201852.3 mm (2.1 in)
2019111.8 mm (4.4 in)
202088.9 mm (3.5 in)
202154.6 mm (2.1 in)
202298.3 mm (3.9 in)
202379.8 mm (3.1 in)
2024212.1 mm (8.4 in)
202597.3 mm (3.8 in)
202645.5 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Aibonito 1 S by year The wettest five days of the year at Aibonito 1 S, 1906 to 2026. The record is 830.6 mm (32.7 in) in 1970, marked on the chart; the median year is 153.4 mm (6.0 in). 02004006008001,000192019401960198020002020Record: 830.6 mm (32.7 in) in 1970
The wettest five days of the year at Aibonito 1 S, 1906 to 2026. The record is 830.6 mm (32.7 in) in 1970, marked on the chart; the median year is 153.4 mm (6.0 in).
Wettest five days (Rx5day) at Aibonito 1 S by year
YearWettest five days (Rx5day)
1906139.7 mm (5.5 in)
190772.4 mm (2.9 in)
1908245.0 mm (9.6 in)
1909329.0 mm (13.0 in)
191045.7 mm (1.8 in)
1911195.7 mm (7.7 in)
1912233.3 mm (9.2 in)
191362.8 mm (2.5 in)
1914130.8 mm (5.1 in)
1915142.2 mm (5.6 in)
1916275.6 mm (10.9 in)
1917117.7 mm (4.6 in)
1918173.5 mm (6.8 in)
1919103.4 mm (4.1 in)
1920116.4 mm (4.6 in)
1921113.1 mm (4.5 in)
1922138.5 mm (5.5 in)
1923222.9 mm (8.8 in)
1924229.4 mm (9.0 in)
192595.7 mm (3.8 in)
1926227.9 mm (9.0 in)
1927181.6 mm (7.1 in)
193072.9 mm (2.9 in)
1931132.8 mm (5.2 in)
1932353.0 mm (13.9 in)
1933175.2 mm (6.9 in)
1934162.3 mm (6.4 in)
1935169.9 mm (6.7 in)
1936194.6 mm (7.7 in)
1937129.1 mm (5.1 in)
1938180.6 mm (7.1 in)
1939192.3 mm (7.6 in)
1940153.4 mm (6.0 in)
1941174.9 mm (6.9 in)
1942136.9 mm (5.4 in)
1943292.1 mm (11.5 in)
1944173.6 mm (6.8 in)
1945237.4 mm (9.3 in)
194692.2 mm (3.6 in)
1947104.6 mm (4.1 in)
194855.3 mm (2.2 in)
1950141.2 mm (5.6 in)
195180.6 mm (3.2 in)
1952191.8 mm (7.6 in)
195382.3 mm (3.2 in)
1954191.3 mm (7.5 in)
195597.6 mm (3.8 in)
1956169.4 mm (6.7 in)
1957111.2 mm (4.4 in)
195874.6 mm (2.9 in)
195992.5 mm (3.6 in)
1960288.5 mm (11.4 in)
1961126.9 mm (5.0 in)
1962197.2 mm (7.8 in)
1963147.9 mm (5.8 in)
196459.7 mm (2.4 in)
196535.6 mm (1.4 in)
196661.7 mm (2.4 in)
196748.5 mm (1.9 in)
196895.8 mm (3.8 in)
1969199.4 mm (7.9 in)
1970830.6 mm (32.7 in)
1971182.9 mm (7.2 in)
1972100.6 mm (4.0 in)
197383.1 mm (3.3 in)
1974146.4 mm (5.8 in)
1975184.0 mm (7.2 in)
1976146.6 mm (5.8 in)
197739.6 mm (1.6 in)
1993103.0 mm (4.1 in)
199460.0 mm (2.4 in)
1995175.3 mm (6.9 in)
1996441.7 mm (17.4 in)
1997322.4 mm (12.7 in)
1998457.9 mm (18.0 in)
1999269.2 mm (10.6 in)
2000218.7 mm (8.6 in)
2001186.9 mm (7.4 in)
2002118.1 mm (4.6 in)
2003484.8 mm (19.1 in)
2004484.1 mm (19.1 in)
2005134.1 mm (5.3 in)
2006138.9 mm (5.5 in)
2007278.2 mm (11.0 in)
2008245.3 mm (9.7 in)
2009134.4 mm (5.3 in)
2010303.1 mm (11.9 in)
2011387.3 mm (15.2 in)
2012156.8 mm (6.2 in)
2013120.1 mm (4.7 in)
2014190.6 mm (7.5 in)
2015246.9 mm (9.7 in)
2016102.3 mm (4.0 in)
2017149.4 mm (5.9 in)
201872.4 mm (2.9 in)
2019157.6 mm (6.2 in)
2020165.4 mm (6.5 in)
202199.0 mm (3.9 in)
2022183.9 mm (7.2 in)
2023111.3 mm (4.4 in)
2024237.8 mm (9.4 in)
2025195.6 mm (7.7 in)
2026104.0 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Aibonito 1 S by year The longest dry spell of the year at Aibonito 1 S, 1906 to 2026. The record is 65 days in 1912, marked on the chart; the median year is 16 days. 020406080192019401960198020002020Record: 65 days in 1912
The longest dry spell of the year at Aibonito 1 S, 1906 to 2026. The record is 65 days in 1912, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Aibonito 1 S by year
YearLongest dry spell (CDD)
190614 days
190712 days
190821 days
190912 days
191019 days
191139 days
191265 days
191328 days
191416 days
191536 days
191616 days
191712 days
191816 days
191921 days
192020 days
192111 days
192218 days
192317 days
192427 days
192514 days
192614 days
192730 days
193016 days
19319 days
193210 days
193314 days
193414 days
193514 days
193621 days
193721 days
193819 days
193916 days
194011 days
194127 days
194216 days
194312 days
194424 days
194531 days
194610 days
194722 days
194821 days
195011 days
195128 days
195222 days
195312 days
19548 days
195516 days
195616 days
195714 days
195818 days
195924 days
196013 days
196117 days
196212 days
196311 days
196418 days
196520 days
19669 days
196719 days
196812 days
196925 days
197024 days
197115 days
197214 days
197317 days
197419 days
197520 days
197614 days
197717 days
199319 days
199414 days
199518 days
19969 days
199735 days
199813 days
199921 days
200016 days
200118 days
200216 days
200312 days
200411 days
200529 days
200612 days
200716 days
200811 days
200911 days
201020 days
201111 days
201224 days
201311 days
201414 days
201530 days
201616 days
201716 days
201814 days
201911 days
202013 days
202115 days
202212 days
20238 days
202410 days
20259 days
202612 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

76 years, 1906 to 2025

A day with at least 92.8 mm (3.7 in) of rain is expected about once in 2 years. A day with at least 458.4 mm (18.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Aibonito 1 S: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years92.8 mm (3.7 in)
5 years150.6 mm (5.9 in)
10 years201.3 mm (7.9 in)
25 years284.0 mm (11.2 in)
50 years362.4 mm (14.3 in)
100 years458.4 mm (18.0 in)Longer than the 76 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, 76 years of values from 1906 to 2025.

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: 431.8 mm (17.0 in) in 1970; 406.4 mm (16.0 in) in 1998; 381.0 mm (15.0 in) in 2004.

Download the Data

  • Data for Aibonito 1 S standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Aibonito 1 S 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-17).