Built 2026-10-19 (19 October 2026)

Borinquen AP Weather Records (RQW00011603)

Record envelope, standing records and threshold days for Borinquen AP (RQW00011603), PR, Puerto Rico [United States], with 85 years of record.

Key Facts for Borinquen AP

  • Borinquen AP (RQW00011603) is a weather station in PR, Puerto Rico [United States] at 18.50 latitude and -67.13 longitude, 66 m (218 ft) above sea level.
  • The station reports from 1942 to 2026, 85 years of record.
  • 1,464 records set at Borinquen AP still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Borinquen AP set a daily record high minimum temperature of 26.0 C (78.8 F) on 6 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], 18.50 latitude, -67.13 longitude.
  • Elevation: 66 m (218 ft).
  • Period of record: 1942 to 2026, 85 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Borinquen AP, with 2026 drawn through them The band shows the record high and record low for each calendar day at Borinquen AP. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 10152025303540 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Borinquen AP. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Borinquen AP, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan34.4 C (93.9 F)15.0 C (59.0 F)31.0 C (87.8 F)18.0 C (64.4 F)
Feb32.8 C (91.0 F)15.6 C (60.1 F)30.0 C (86.0 F)20.0 C (68.0 F)
Mar35.0 C (95.0 F)13.9 C (57.0 F)31.0 C (87.8 F)21.0 C (69.8 F)
Apr35.0 C (95.0 F)16.1 C (61.0 F)31.0 C (87.8 F)22.0 C (71.6 F)
May35.0 C (95.0 F)15.6 C (60.1 F)31.0 C (87.8 F)23.0 C (73.4 F)
Jun35.6 C (96.1 F)16.1 C (61.0 F)32.0 C (89.6 F)23.0 C (73.4 F)
Jul35.6 C (96.1 F)17.8 C (64.0 F)33.0 C (91.4 F)24.0 C (75.2 F)
Aug36.0 C (96.8 F)17.2 C (63.0 F)33.0 C (91.4 F)24.0 C (75.2 F)
Sep35.6 C (96.1 F)17.8 C (64.0 F)32.0 C (89.6 F)24.0 C (75.2 F)
Oct36.1 C (97.0 F)16.7 C (62.1 F)32.0 C (89.6 F)24.0 C (75.2 F)
Nov36.1 C (97.0 F)16.7 C (62.1 F)n/an/a
Dec32.8 C (91.0 F)15.6 C (60.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Borinquen AP by the year they were set 1,464 records at Borinquen AP still stand. 2010 holds the most, with 126. 0501001501942: 251943: 41944: 261945: 371946: 271947: 81948: 111949: 231950: 271951: 121952: 71953: 41954: 91955: 131956: 61957: 81958: 141959: 41960: 21961: 111962: 31963: 41964: 231965: 481966: 201967: 141968: 101969: 201970: 111971: 131972: 51973: 11974: 351975: 401976: 421977: 461978: 251979: 321980: 681981: 291982: 301983: 301984: 231985: 181986: 51987: 461988: 271989: 71990: 161991: 51992: 121993: 91994: 31995: 21997: 71998: 81999: 102000: 92001: 32002: 12003: 62004: 72005: 32006: 42007: 122009: 772010: 1262011: 162012: 382013: 62025: 852026: 46194219501958196619741982199019992007
1,464 records at Borinquen AP still stand. 2010 holds the most, with 126.
Standing records at Borinquen AP by the year they were set
Year setStanding records
194225
19434
194426
194537
194627
19478
194811
194923
195027
195112
19527
19534
19549
195513
19566
19578
195814
19594
19602
196111
19623
19634
196423
196548
196620
196714
196810
196920
197011
197113
19725
19731
197435
197540
197642
197746
197825
197932
198068
198129
198230
198330
198423
198518
19865
198746
198827
19897
199016
19915
199212
19939
19943
19952
19977
19988
199910
20009
20013
20021
20036
20047
20053
20064
200712
200977
2010126
201116
201238
20136
202585
202646

All-Time Record Progression

7 new records
When Borinquen AP set new all-time records 7 all-time records were set at Borinquen AP between 3 March 1977 and 11 October 2009. Each dot is a new record. Record low minimum temperatureRecord high minimum temperatureRecord high maximum temperatureRecord daily precipitation3 March 1977: Record low minimum temperature 14.4 C (57.9 F)12 March 1982: Record low minimum temperature 13.9 C (57.0 F)2 April 1984: Record high minimum temperature 27.8 C (82.0 F)17 October 1984: Record high maximum temperature 36.1 C (97.0 F)1 April 2006: Record daily precipitation 182.4 mm (7.2 in)7 September 2009: Record high minimum temperature 28.3 C (82.9 F)11 October 2009: Record high minimum temperature 28.9 C (84.0 F)1980198519901995200020052010
7 all-time records were set at Borinquen AP between 3 March 1977 and 11 October 2009. Each dot is a new record.
When Borinquen AP set new all-time records
DateKindDetail
1977-03-03Record low minimum temperatureRecord low minimum temperature 14.4 C (57.9 F)
1982-03-12Record low minimum temperatureRecord low minimum temperature 13.9 C (57.0 F)
1984-04-02Record high minimum temperatureRecord high minimum temperature 27.8 C (82.0 F)
1984-10-17Record high maximum temperatureRecord high maximum temperature 36.1 C (97.0 F)
2006-04-01Record daily precipitationRecord daily precipitation 182.4 mm (7.2 in)
2009-09-07Record high minimum temperatureRecord high minimum temperature 28.3 C (82.9 F)
2009-10-11Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)

Wettest Day of Each Month

Apr: 182.4 mm (7.2 in)
Record daily precipitation for each month at Borinquen AP The wettest day on record for each calendar month at Borinquen AP. The most was 182.4 mm (7.2 in) on 1 April 2006. 050100150200 Jan: 95.3 mm (3.8 in), 26 January 2003 Jan Feb: 84.3 mm (3.3 in), 6 February 2009 Feb Mar: 112.5 mm (4.4 in), 25 March 1963 Mar Apr: 182.4 mm (7.2 in), 1 April 2006 Apr May: 111.8 mm (4.4 in), 27 May 1945 May Jun: 91.7 mm (3.6 in), 15 June 1956 Jun Jul: 76.2 mm (3.0 in), 5 July 1984 Jul Aug: 121.9 mm (4.8 in), 25 August 1988 Aug Sep: 119.6 mm (4.7 in), 16 September 2004 Sep Oct: 95.0 mm (3.7 in), 3 October 1958 Oct Nov: 103.4 mm (4.1 in), 28 November 1961 Nov Dec: 104.9 mm (4.1 in), 19 December 1969 Dec
The wettest day on record for each calendar month at Borinquen AP. The most was 182.4 mm (7.2 in) on 1 April 2006.
Record daily precipitation for each month at Borinquen AP
MonthRecord daily precipitation (mm)Date
Jan95.3 mm (3.8 in)26 January 2003
Feb84.3 mm (3.3 in)6 February 2009
Mar112.5 mm (4.4 in)25 March 1963
Apr182.4 mm (7.2 in)1 April 2006
May111.8 mm (4.4 in)27 May 1945
Jun91.7 mm (3.6 in)15 June 1956
Jul76.2 mm (3.0 in)5 July 1984
Aug121.9 mm (4.8 in)25 August 1988
Sep119.6 mm (4.7 in)16 September 2004
Oct95.0 mm (3.7 in)3 October 1958
Nov103.4 mm (4.1 in)28 November 1961
Dec104.9 mm (4.1 in)19 December 1969

Period of Record Coverage

1942 to 2026
Days with data per year at Borinquen AP 74 years of record at Borinquen AP, 1942 to 2026. 26 years have data for under 90 percent of days and are left out of rankings: 1943, 1944, 1946, 1973, 1977, 1978, 1981, 1985 and others. 1942: 361 of 365 days1943: 119 of 365 days1944: 327 of 366 days1945: 356 of 365 days1946: 304 of 365 days1947: 334 of 365 days1948: 332 of 366 days1949: 363 of 365 days1950: 364 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 364 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 364 of 365 days1966: 364 of 365 days1967: 364 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 212 of 365 days1974: 334 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 319 of 365 days1978: 233 of 365 days1979: 357 of 365 days1980: 358 of 366 days1981: 328 of 365 days1982: 363 of 365 days1983: 331 of 365 days1984: 333 of 366 days1985: 246 of 365 days1986: 277 of 365 days1987: 329 of 365 days1988: 351 of 366 days1989: 358 of 365 days1990: 344 of 365 days1991: 241 of 365 days1992: 141 of 366 days1993: 329 of 365 days1994: 181 of 365 days1995: 31 of 365 days1996: 31 of 366 days1997: 250 of 365 days1998: 298 of 365 days1999: 345 of 365 days2000: 314 of 366 days2001: 325 of 365 days2002: 360 of 365 days2003: 358 of 365 days2004: 360 of 366 days2005: 348 of 365 days2006: 274 of 365 days2007: 193 of 365 days2008: 1 of 366 days2009: 98 of 365 days2010: 301 of 365 days2011: 278 of 365 days2012: 331 of 366 days2013: 265 of 365 days2025: 355 of 365 days2026: 274 of 365 days1950196019701980199020002010
74 years of record at Borinquen AP, 1942 to 2026. 26 years have data for under 90 percent of days and are left out of rankings: 1943, 1944, 1946, 1973, 1977, 1978, 1981, 1985 and others.
Days with data per year at Borinquen AP
YearDays with dataShare of yearComplete
194236199%Yes
194311933%No
194432789%No
194535698%Yes
194630483%No
194733492%Yes
194833291%Yes
194936399%Yes
1950364100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961364100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965364100%Yes
1966364100%Yes
1967364100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972365100%Yes
197321258%No
197433492%Yes
1975365100%Yes
1976366100%Yes
197731987%No
197823364%No
197935798%Yes
198035898%Yes
198132890%No
198236399%Yes
198333191%Yes
198433391%Yes
198524667%No
198627776%No
198732990%Yes
198835196%Yes
198935898%Yes
199034494%Yes
199124166%No
199214139%No
199332990%Yes
199418150%No
1995318%No
1996318%No
199725068%No
199829882%No
199934595%Yes
200031486%No
200132589%No
200236099%Yes
200335898%Yes
200436098%Yes
200534895%Yes
200627475%No
200719353%No
200810%No
20099827%No
201030182%No
201127876%No
201233190%Yes
201326573%No
202535597%Yes
202627475%No

Latest Records

20
Latest records at Borinquen AP
DateStationRecordValueBeat old record byOld record stoodSignificance
6 October 2026Borinquen AP, PRdaily high min (Provisional)26.0 C (78.8 F)1.6 C (2.9 F)56 years38 of 100 (Notable)
2 October 2026Borinquen AP, PRdaily high min (Tie, Provisional)26.0 C (78.8 F)tie0 years2 of 100 (Routine)
29 September 2026Borinquen AP, PRdaily high min (Provisional)27.0 C (80.6 F)0.9 C (1.6 F)56 years33 of 100 (Routine)
27 September 2026Borinquen AP, PRdaily high min (Provisional)27.0 C (80.6 F)0.3 C (0.5 F)16 years15 of 100 (Routine)
25 September 2026Borinquen AP, PRdaily high min (Provisional)27.0 C (80.6 F)1.4 C (2.5 F)68 years40 of 100 (Notable)
13 September 2026Borinquen AP, PRdaily high min (Provisional)28.0 C (82.4 F)2.4 C (4.3 F)79 years52 of 100 (Notable)
11 September 2026Borinquen AP, PRdaily high min (Provisional)28.0 C (82.4 F)1.0 C (1.8 F)0 years16 of 100 (Routine)
9 September 2026Borinquen AP, PRdaily high min (Provisional)26.0 C (78.8 F)1.0 C (1.8 F)68 years36 of 100 (Notable)
6 September 2026Borinquen AP, PRdaily high min (Provisional)28.0 C (82.4 F)0.8 C (1.4 F)16 years19 of 100 (Routine)
28 August 2026Borinquen AP, PRdaily high min (Provisional)28.0 C (82.4 F)0.8 C (1.4 F)36 years25 of 100 (Routine)
26 August 2026Borinquen AP, PRdaily high min (Provisional)27.0 C (80.6 F)0.9 C (1.6 F)60 years33 of 100 (Routine)
25 August 2026Borinquen AP, PRdaily high min (Provisional)27.0 C (80.6 F)1.0 C (1.8 F)0 years16 of 100 (Routine)
21 August 2026Borinquen AP, PRdaily high min (Tie, Provisional)27.0 C (80.6 F)tie0 years2 of 100 (Routine)
20 August 2026Borinquen AP, PRdaily high min (Provisional)26.0 C (78.8 F)0.4 C (0.7 F)68 years31 of 100 (Routine)
16 August 2026Borinquen AP, PRdaily high min28.0 C (82.4 F)2.4 C (4.3 F)45 years42 of 100 (Notable)
15 August 2026Borinquen AP, PRdaily high min28.0 C (82.4 F)1.0 C (1.8 F)0 years16 of 100 (Routine)
7 August 2026Borinquen AP, PRdaily high min27.0 C (80.6 F)0.9 C (1.6 F)71 years36 of 100 (Notable)
4 August 2026Borinquen AP, PRdaily high min27.0 C (80.6 F)2.0 C (3.6 F)57 years42 of 100 (Notable)
3 August 2026Borinquen AP, PRdaily high min27.0 C (80.6 F)1.0 C (1.8 F)0 years16 of 100 (Routine)
2 August 2026Borinquen AP, PRdaily high min27.0 C (80.6 F)0.9 C (1.6 F)68 years35 of 100 (Notable)

Climate Trend

43 complete years, 1942 to 2025
Annual mean temperature at Borinquen AP as warming stripes, 1942 to 2025 One stripe for each of 43 complete years at Borinquen AP, 1942 to 2025. Blue stripes are years cooler than the station's own mean of 25.6 C (78.1 F); red stripes are warmer. The coolest year was 1965, at 24.6 C (76.3 F), and the warmest was 1987, at 26.9 C (80.5 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1942: 25.3 C, -0.3 C from the station mean1945: 24.6 C, -1.0 C from the station mean1949: 24.8 C, -0.8 C from the station mean1950: 24.8 C, -0.8 C from the station mean1951: 25.5 C, 0.0 C from the station mean1952: 25.7 C, +0.2 C from the station mean1953: 25.7 C, +0.1 C from the station mean1954: 25.1 C, -0.5 C from the station mean1955: 25.4 C, -0.2 C from the station mean1956: 25.4 C, -0.2 C from the station mean1957: 25.7 C, +0.2 C from the station mean1958: 26.0 C, +0.4 C from the station mean1959: 25.9 C, +0.3 C from the station mean1960: 26.1 C, +0.5 C from the station mean1961: 25.3 C, -0.3 C from the station mean1962: 25.2 C, -0.4 C from the station mean1963: 25.6 C, 0.0 C from the station mean1964: 25.6 C, 0.0 C from the station mean1965: 24.6 C, -1.0 C from the station mean1966: 25.0 C, -0.6 C from the station mean1967: 24.9 C, -0.7 C from the station mean1968: 25.7 C, +0.1 C from the station mean1969: 26.1 C, +0.5 C from the station mean1970: 25.6 C, 0.0 C from the station mean1971: 25.4 C, -0.2 C from the station mean1972: 25.1 C, -0.5 C from the station mean1975: 25.2 C, -0.4 C from the station mean1976: 24.7 C, -0.9 C from the station mean1979: 25.8 C, +0.2 C from the station mean1980: 26.7 C, +1.1 C from the station mean1982: 26.2 C, +0.6 C from the station mean1987: 26.9 C, +1.4 C from the station mean1988: 26.5 C, +0.9 C from the station mean1989: 25.8 C, +0.2 C from the station mean1990: 26.0 C, +0.4 C from the station mean1999: 25.4 C, -0.2 C from the station mean2000: 25.1 C, -0.4 C from the station mean2002: 25.6 C, 0.0 C from the station mean2003: 25.8 C, +0.2 C from the station mean2004: 25.6 C, 0.0 C from the station mean2005: 25.7 C, +0.1 C from the station mean2012: 26.7 C, +1.1 C from the station mean2025: 26.7 C, +1.1 C from the station mean194219501960197019801990200020102020
One stripe for each of 43 complete years at Borinquen AP, 1942 to 2025. Blue stripes are years cooler than the station's own mean of 25.6 C (78.1 F); red stripes are warmer. The coolest year was 1965, at 24.6 C (76.3 F), and the warmest was 1987, at 26.9 C (80.5 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Borinquen AP as warming stripes, 1942 to 2025
YearAnnual mean temperatureDifference from the station mean
194225.3 C-0.34 C
194524.6 C-0.98 C
194924.8 C-0.82 C
195024.8 C-0.79 C
195125.5 C-0.05 C
195225.7 C+0.15 C
195325.7 C+0.12 C
195425.1 C-0.53 C
195525.4 C-0.17 C
195625.4 C-0.18 C
195725.7 C+0.15 C
195826.0 C+0.44 C
195925.9 C+0.29 C
196026.1 C+0.51 C
196125.3 C-0.34 C
196225.2 C-0.37 C
196325.6 C-0.03 C
196425.6 C-0.01 C
196524.6 C-1.00 C
196625.0 C-0.59 C
196724.9 C-0.70 C
196825.7 C+0.08 C
196926.1 C+0.52 C
197025.6 C-0.02 C
197125.4 C-0.20 C
197225.1 C-0.53 C
197525.2 C-0.43 C
197624.7 C-0.88 C
197925.8 C+0.21 C
198026.7 C+1.06 C
198226.2 C+0.59 C
198726.9 C+1.35 C
198826.5 C+0.87 C
198925.8 C+0.17 C
199026.0 C+0.40 C
199925.4 C-0.22 C
200025.1 C-0.45 C
200225.6 C+0.03 C
200325.8 C+0.23 C
200425.6 C-0.03 C
200525.7 C+0.14 C
201226.7 C+1.09 C
202526.7 C+1.10 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1942 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Borinquen AP
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 0.4) per decade1942 to 202543Rise
Mean daily maximum0.3 C (0.2 to 0.4) per decade0.5 F (0.3 to 0.8) per decade1942 to 202543Rise
Mean daily minimum-0.02 C (-0.11 to 0.07) per decade-0.03 F (-0.19 to 0.13) per decade1942 to 202543Not clearly different from zero

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

1942 to 2026
Yearly extremes at Borinquen AP: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.1 C (97.0 F)198432.8 C (91.0 F)74
Coldest night (TNn)13.9 C (57.0 F)198217.2 C (63.0 F)74
Wettest day (Rx1day)182.4 mm (7.2 in)200674.7 mm (2.9 in)73
Wettest five days (Rx5day)262.4 mm (10.3 in)1970121.7 mm (4.8 in)73
Longest dry spell (CDD)61 days198319 days73

Hottest day (TXx)

Hottest day (TXx) at Borinquen AP by year The hottest day of the year at Borinquen AP, 1942 to 2026. The record is 36.1 C (97.0 F) in 1984, marked on the chart; the median year is 32.8 C (91.0 F). 2830323436381960198020002020Record: 36.1 C (97.0 F) in 1984
The hottest day of the year at Borinquen AP, 1942 to 2026. The record is 36.1 C (97.0 F) in 1984, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Borinquen AP by year
YearHottest day (TXx)
194232.8 C (91.0 F)
194332.2 C (90.0 F)
194431.7 C (89.1 F)
194533.3 C (91.9 F)
194631.7 C (89.1 F)
194732.2 C (90.0 F)
194831.7 C (89.1 F)
194932.2 C (90.0 F)
195032.8 C (91.0 F)
195132.8 C (91.0 F)
195232.8 C (91.0 F)
195332.8 C (91.0 F)
195431.1 C (88.0 F)
195532.8 C (91.0 F)
195632.8 C (91.0 F)
195732.2 C (90.0 F)
195832.2 C (90.0 F)
195932.2 C (90.0 F)
196032.2 C (90.0 F)
196131.7 C (89.1 F)
196235.0 C (95.0 F)
196333.9 C (93.0 F)
196432.2 C (90.0 F)
196531.1 C (88.0 F)
196631.7 C (89.1 F)
196732.2 C (90.0 F)
196832.8 C (91.0 F)
196933.3 C (91.9 F)
197033.3 C (91.9 F)
197132.8 C (91.0 F)
197232.2 C (90.0 F)
197332.2 C (90.0 F)
197432.8 C (91.0 F)
197532.2 C (90.0 F)
197631.7 C (89.1 F)
197734.4 C (93.9 F)
197832.8 C (91.0 F)
197935.0 C (95.0 F)
198035.0 C (95.0 F)
198135.0 C (95.0 F)
198235.0 C (95.0 F)
198335.0 C (95.0 F)
198436.1 C (97.0 F)
198535.0 C (95.0 F)
198634.4 C (93.9 F)
198736.1 C (97.0 F)
198835.6 C (96.1 F)
198934.4 C (93.9 F)
199035.6 C (96.1 F)
199134.4 C (93.9 F)
199233.9 C (93.0 F)
199335.6 C (96.1 F)
199433.3 C (91.9 F)
199530.6 C (87.1 F)
199629.4 C (84.9 F)
199734.4 C (93.9 F)
199832.8 C (91.0 F)
199932.8 C (91.0 F)
200031.7 C (89.1 F)
200132.2 C (90.0 F)
200232.8 C (91.0 F)
200333.3 C (91.9 F)
200432.8 C (91.0 F)
200532.8 C (91.0 F)
200632.2 C (90.0 F)
200735.6 C (96.1 F)
200830.0 C (86.0 F)
200935.6 C (96.1 F)
201035.6 C (96.1 F)
201134.4 C (93.9 F)
201235.6 C (96.1 F)
201335.6 C (96.1 F)
2014n/a
202536.0 C (96.8 F)
202633.0 C (91.4 F)

Coldest night (TNn)

Coldest night (TNn) at Borinquen AP by year The coldest night of the year at Borinquen AP, 1942 to 2026. The record is 13.9 C (57.0 F) in 1982, marked on the chart; the median year is 17.2 C (63.0 F). 12141618201960198020002020Record: 13.9 C (57.0 F) in 1982
The coldest night of the year at Borinquen AP, 1942 to 2026. The record is 13.9 C (57.0 F) in 1982, marked on the chart; the median year is 17.2 C (63.0 F).
Coldest night (TNn) at Borinquen AP by year
YearColdest night (TNn)
194217.2 C (63.0 F)
194318.3 C (64.9 F)
194417.8 C (64.0 F)
194517.2 C (63.0 F)
194616.7 C (62.1 F)
194716.7 C (62.1 F)
194818.3 C (64.9 F)
194916.7 C (62.1 F)
195017.8 C (64.0 F)
195116.1 C (61.0 F)
195217.8 C (64.0 F)
195318.3 C (64.9 F)
195417.8 C (64.0 F)
195518.3 C (64.9 F)
195617.2 C (63.0 F)
195719.4 C (66.9 F)
195818.3 C (64.9 F)
195918.3 C (64.9 F)
196019.4 C (66.9 F)
196117.8 C (64.0 F)
196217.2 C (63.0 F)
196317.2 C (63.0 F)
196417.2 C (63.0 F)
196515.6 C (60.1 F)
196617.2 C (63.0 F)
196716.7 C (62.1 F)
196817.2 C (63.0 F)
196917.8 C (64.0 F)
197016.7 C (62.1 F)
197117.8 C (64.0 F)
197216.7 C (62.1 F)
197318.3 C (64.9 F)
197416.1 C (61.0 F)
197516.1 C (61.0 F)
197615.6 C (60.1 F)
197714.4 C (57.9 F)
197815.6 C (60.1 F)
197915.0 C (59.0 F)
198015.0 C (59.0 F)
198117.8 C (64.0 F)
198213.9 C (57.0 F)
198315.6 C (60.1 F)
198416.1 C (61.0 F)
198516.1 C (61.0 F)
198616.1 C (61.0 F)
198716.1 C (61.0 F)
198818.3 C (64.9 F)
198916.7 C (62.1 F)
199016.7 C (62.1 F)
199116.7 C (62.1 F)
199216.7 C (62.1 F)
199317.8 C (64.0 F)
199417.8 C (64.0 F)
199517.8 C (64.0 F)
199618.3 C (64.9 F)
199718.3 C (64.9 F)
199816.1 C (61.0 F)
199917.2 C (63.0 F)
200015.6 C (60.1 F)
200116.7 C (62.1 F)
200218.3 C (64.9 F)
200318.3 C (64.9 F)
200417.8 C (64.0 F)
200517.2 C (63.0 F)
200617.8 C (64.0 F)
200715.6 C (60.1 F)
200818.9 C (66.0 F)
200920.0 C (68.0 F)
201017.2 C (63.0 F)
201117.8 C (64.0 F)
201217.8 C (64.0 F)
201318.3 C (64.9 F)
2014n/a
202519.0 C (66.2 F)
202618.0 C (64.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Borinquen AP by year The wettest day of the year at Borinquen AP, 1942 to 2026. The record is 182.4 mm (7.2 in) in 2006, marked on the chart; the median year is 74.7 mm (2.9 in). 0501001502001960198020002020Record: 182.4 mm (7.2 in) in 2006
The wettest day of the year at Borinquen AP, 1942 to 2026. The record is 182.4 mm (7.2 in) in 2006, marked on the chart; the median year is 74.7 mm (2.9 in).
Wettest day (Rx1day) at Borinquen AP by year
YearWettest day (Rx1day)
194271.4 mm (2.8 in)
194358.4 mm (2.3 in)
194464.8 mm (2.6 in)
1945111.8 mm (4.4 in)
194652.1 mm (2.1 in)
194747.0 mm (1.9 in)
194874.7 mm (2.9 in)
194958.2 mm (2.3 in)
195061.2 mm (2.4 in)
195174.7 mm (2.9 in)
195246.0 mm (1.8 in)
195358.7 mm (2.3 in)
195493.2 mm (3.7 in)
195579.8 mm (3.1 in)
1956116.8 mm (4.6 in)
195738.6 mm (1.5 in)
1958140.5 mm (5.5 in)
1959110.7 mm (4.4 in)
196087.1 mm (3.4 in)
1961109.0 mm (4.3 in)
196266.0 mm (2.6 in)
1963112.5 mm (4.4 in)
196438.9 mm (1.5 in)
196585.3 mm (3.4 in)
196665.5 mm (2.6 in)
196753.3 mm (2.1 in)
196883.8 mm (3.3 in)
1969104.9 mm (4.1 in)
197075.9 mm (3.0 in)
197172.9 mm (2.9 in)
197298.0 mm (3.9 in)
197342.2 mm (1.7 in)
197488.9 mm (3.5 in)
197595.3 mm (3.8 in)
197676.7 mm (3.0 in)
197772.1 mm (2.8 in)
197874.2 mm (2.9 in)
197957.9 mm (2.3 in)
198081.3 mm (3.2 in)
1981101.6 mm (4.0 in)
198273.7 mm (2.9 in)
1983114.3 mm (4.5 in)
198476.2 mm (3.0 in)
198550.8 mm (2.0 in)
198691.4 mm (3.6 in)
198772.9 mm (2.9 in)
1988121.9 mm (4.8 in)
1989104.1 mm (4.1 in)
199068.6 mm (2.7 in)
199153.3 mm (2.1 in)
199245.7 mm (1.8 in)
199360.5 mm (2.4 in)
199440.6 mm (1.6 in)
199530.5 mm (1.2 in)
199631.8 mm (1.3 in)
199785.1 mm (3.4 in)
199864.3 mm (2.5 in)
199966.0 mm (2.6 in)
200055.9 mm (2.2 in)
200178.7 mm (3.1 in)
200250.8 mm (2.0 in)
200395.3 mm (3.8 in)
2004119.6 mm (4.7 in)
200591.4 mm (3.6 in)
2006182.4 mm (7.2 in)
200790.4 mm (3.6 in)
200876.7 mm (3.0 in)
200984.3 mm (3.3 in)
201076.2 mm (3.0 in)
201161.5 mm (2.4 in)
201258.4 mm (2.3 in)
201392.7 mm (3.6 in)
201422.6 mm (0.9 in)
2025n/a
2026n/a

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Borinquen AP by year The wettest five days of the year at Borinquen AP, 1942 to 2026. The record is 262.4 mm (10.3 in) in 1970, marked on the chart; the median year is 121.7 mm (4.8 in). 01002003001960198020002020Record: 262.4 mm (10.3 in) in 1970
The wettest five days of the year at Borinquen AP, 1942 to 2026. The record is 262.4 mm (10.3 in) in 1970, marked on the chart; the median year is 121.7 mm (4.8 in).
Wettest five days (Rx5day) at Borinquen AP by year
YearWettest five days (Rx5day)
1942102.1 mm (4.0 in)
1943100.0 mm (3.9 in)
194489.8 mm (3.5 in)
1945151.7 mm (6.0 in)
194669.6 mm (2.7 in)
194768.9 mm (2.7 in)
194898.9 mm (3.9 in)
1949120.2 mm (4.7 in)
1950117.3 mm (4.6 in)
1951115.6 mm (4.6 in)
195292.1 mm (3.6 in)
1953144.6 mm (5.7 in)
1954139.5 mm (5.5 in)
1955118.9 mm (4.7 in)
1956218.7 mm (8.6 in)
195791.0 mm (3.6 in)
1958217.9 mm (8.6 in)
1959238.1 mm (9.4 in)
1960155.3 mm (6.1 in)
1961227.6 mm (9.0 in)
1962118.6 mm (4.7 in)
1963196.1 mm (7.7 in)
196469.4 mm (2.7 in)
1965101.4 mm (4.0 in)
1966102.4 mm (4.0 in)
196765.0 mm (2.6 in)
1968125.7 mm (4.9 in)
1969123.2 mm (4.9 in)
1970262.4 mm (10.3 in)
197193.2 mm (3.7 in)
1972108.9 mm (4.3 in)
197374.0 mm (2.9 in)
1974100.9 mm (4.0 in)
1975127.9 mm (5.0 in)
197696.3 mm (3.8 in)
197789.2 mm (3.5 in)
1978166.2 mm (6.5 in)
1979137.4 mm (5.4 in)
1980116.4 mm (4.6 in)
1981255.2 mm (10.0 in)
1982169.7 mm (6.7 in)
1983194.0 mm (7.6 in)
1984117.6 mm (4.6 in)
1985149.6 mm (5.9 in)
1986215.8 mm (8.5 in)
1987126.0 mm (5.0 in)
1988140.9 mm (5.5 in)
1989126.0 mm (5.0 in)
1990135.9 mm (5.4 in)
199180.0 mm (3.1 in)
199275.8 mm (3.0 in)
199397.9 mm (3.9 in)
199470.3 mm (2.8 in)
199543.4 mm (1.7 in)
199652.1 mm (2.1 in)
1997137.4 mm (5.4 in)
1998134.6 mm (5.3 in)
1999108.5 mm (4.3 in)
200097.8 mm (3.9 in)
2001137.9 mm (5.4 in)
200274.7 mm (2.9 in)
2003152.4 mm (6.0 in)
2004141.3 mm (5.6 in)
2005121.7 mm (4.8 in)
2006200.9 mm (7.9 in)
2007185.0 mm (7.3 in)
2008171.5 mm (6.8 in)
2009147.3 mm (5.8 in)
2010130.6 mm (5.1 in)
2011121.0 mm (4.8 in)
2012133.9 mm (5.3 in)
2013126.5 mm (5.0 in)
201441.6 mm (1.6 in)
2025n/a
2026n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Borinquen AP by year The longest dry spell of the year at Borinquen AP, 1942 to 2026. The record is 61 days in 1983, marked on the chart; the median year is 19 days. 0204060801960198020002020Record: 61 days in 1983
The longest dry spell of the year at Borinquen AP, 1942 to 2026. The record is 61 days in 1983, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Borinquen AP by year
YearLongest dry spell (CDD)
194211 days
19437 days
194420 days
194521 days
194613 days
194717 days
194823 days
194921 days
195015 days
195123 days
195214 days
195317 days
195415 days
195515 days
195623 days
195730 days
195829 days
195916 days
196012 days
196117 days
196220 days
196314 days
196423 days
196534 days
196617 days
196720 days
196817 days
196923 days
197015 days
197111 days
197216 days
197338 days
197419 days
197514 days
197617 days
197729 days
197813 days
197918 days
198030 days
198119 days
198227 days
198361 days
198432 days
198515 days
198625 days
198722 days
198815 days
198928 days
199023 days
199112 days
199222 days
199325 days
199420 days
19959 days
19969 days
199716 days
199822 days
199921 days
200022 days
200118 days
200211 days
200321 days
200411 days
200525 days
200616 days
200727 days
200816 days
200917 days
201023 days
201119 days
201211 days
201321 days
201413 days
2025n/a
2026n/a

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

49 years, 1942 to 2013

A day with at least 80.5 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 142.2 mm (5.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Borinquen AP: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years80.5 mm (3.2 in)
5 years102.2 mm (4.0 in)
10 years114.2 mm (4.5 in)
25 years127.0 mm (5.0 in)
50 years135.2 mm (5.3 in)Longer than the 49 years of record
100 years142.2 mm (5.6 in)Longer than the 49 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, 49 years of values from 1942 to 2013.

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: 140.5 mm (5.5 in) in 1958; 121.9 mm (4.8 in) in 1988; 119.6 mm (4.7 in) in 2004.

Download the Data

  • Data for Borinquen AP standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Borinquen AP 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).