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Arecibo 3 ESE Weather Records (RQC00660410)

Record envelope, standing records and threshold days for Arecibo 3 ESE (RQC00660410), PR, Puerto Rico [United States], with 69 years of record.

Key Facts for Arecibo 3 ESE

  • Arecibo 3 ESE (RQC00660410) is a weather station in PR, Puerto Rico [United States] at 18.45 latitude and -66.67 longitude, 3 m (10 ft) above sea level.
  • The station reports from 1931 to 1999, 69 years of record.
  • 1,464 records set at Arecibo 3 ESE still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Arecibo 3 ESE tied a daily record high maximum temperature of 31.7 C (89.1 F) on 11 January 1999.

About the Station

  • Location: PR, Puerto Rico [United States], 18.45 latitude, -66.67 longitude.
  • Elevation: 3 m (10 ft).
  • Period of record: 1931 to 1999, 69 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 Arecibo 3 ESE, with 2026 drawn through them The band shows the record high and record low for each calendar day at Arecibo 3 ESE. The lines show the 2026 daily maximum and minimum. 0 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 Arecibo 3 ESE. 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 Arecibo 3 ESE, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan35.6 C (96.1 F)12.2 C (54.0 F)n/an/a
Feb35.0 C (95.0 F)11.1 C (52.0 F)n/an/a
Mar35.0 C (95.0 F)11.7 C (53.1 F)n/an/a
Apr35.0 C (95.0 F)12.8 C (55.0 F)n/an/a
May35.6 C (96.1 F)13.9 C (57.0 F)n/an/a
Jun37.2 C (99.0 F)15.6 C (60.1 F)n/an/a
Jul36.7 C (98.1 F)15.6 C (60.1 F)n/an/a
Aug36.7 C (98.1 F)15.6 C (60.1 F)n/an/a
Sep36.1 C (97.0 F)15.0 C (59.0 F)n/an/a
Oct37.2 C (99.0 F)15.0 C (59.0 F)n/an/a
Nov35.6 C (96.1 F)13.9 C (57.0 F)n/an/a
Dec35.6 C (96.1 F)12.8 C (55.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Arecibo 3 ESE by the year they were set 1,464 records at Arecibo 3 ESE still stand. 1984 holds the most, with 130. 0501001501931: 171933: 271934: 271935: 331937: 651939: 301940: 211941: 171942: 251943: 121944: 251945: 171946: 81947: 51948: 121949: 191950: 151951: 161952: 81953: 121954: 271955: 61956: 61957: 41958: 251959: 61960: 131961: 101962: 181963: 91964: 161965: 51966: 141967: 61968: 151969: 91970: 141971: 61972: 91973: 121974: 301975: 121976: 41977: 121978: 141979: 231980: 441981: 201982: 101983: 941984: 1301985: 281986: 311987: 211988: 281989: 91990: 291991: 161992: 261993: 481994: 461995: 311996: 181997: 531998: 451999: 11931194119481955196219691976198319901997
1,464 records at Arecibo 3 ESE still stand. 1984 holds the most, with 130.
Standing records at Arecibo 3 ESE by the year they were set
Year setStanding records
193117
193327
193427
193533
193765
193930
194021
194117
194225
194312
194425
194517
19468
19475
194812
194919
195015
195116
19528
195312
195427
19556
19566
19574
195825
19596
196013
196110
196218
19639
196416
19655
196614
19676
196815
19699
197014
19716
19729
197312
197430
197512
19764
197712
197814
197923
198044
198120
198210
198394
1984130
198528
198631
198721
198828
19899
199029
199116
199226
199348
199446
199531
199618
199753
199845
19991

All-Time Record Progression

6 new records
When Arecibo 3 ESE set new all-time records 6 all-time records were set at Arecibo 3 ESE between 14 December 1968 and 26 June 1985. Each dot is a new record. Record daily precipitationRecord high minimum temperatureRecord low minimum temperatureRecord high maximum temperature14 December 1968: Record daily precipitation 161.3 mm (6.4 in)11 September 1975: Record high minimum temperature 27.2 C (81.0 F)17 September 1975: Record daily precipitation 228.6 mm (9.0 in)7 February 1983: Record low minimum temperature 12.2 C (54.0 F)22 February 1984: Record low minimum temperature 11.1 C (52.0 F)26 June 1985: Record high maximum temperature 37.2 C (99.0 F)1970197519801985
6 all-time records were set at Arecibo 3 ESE between 14 December 1968 and 26 June 1985. Each dot is a new record.
When Arecibo 3 ESE set new all-time records
DateKindDetail
1968-12-14Record daily precipitationRecord daily precipitation 161.3 mm (6.4 in)
1975-09-11Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
1975-09-17Record daily precipitationRecord daily precipitation 228.6 mm (9.0 in)
1983-02-07Record low minimum temperatureRecord low minimum temperature 12.2 C (54.0 F)
1984-02-22Record low minimum temperatureRecord low minimum temperature 11.1 C (52.0 F)
1985-06-26Record high maximum temperatureRecord high maximum temperature 37.2 C (99.0 F)

Wettest Day of Each Month

Sep: 228.6 mm (9.0 in)
Record daily precipitation for each month at Arecibo 3 ESE The wettest day on record for each calendar month at Arecibo 3 ESE. The most was 228.6 mm (9.0 in) on 17 September 1975. 0100200300 Jan: 125.7 mm (4.9 in), 20 January 1973 Jan Feb: 108.0 mm (4.3 in), 20 February 1971 Feb Mar: 146.6 mm (5.8 in), 26 March 1963 Mar Apr: 104.6 mm (4.1 in), 22 April 1961 Apr May: 140.7 mm (5.5 in), 18 May 1956 May Jun: 88.4 mm (3.5 in), 15 June 1942 Jun Jul: 104.4 mm (4.1 in), 5 July 1934 Jul Aug: 134.6 mm (5.3 in), 31 August 1979 Aug Sep: 228.6 mm (9.0 in), 17 September 1975 Sep Oct: 148.6 mm (5.9 in), 8 October 1977 Oct Nov: 153.7 mm (6.1 in), 26 November 1963 Nov Dec: 161.3 mm (6.4 in), 14 December 1968 Dec
The wettest day on record for each calendar month at Arecibo 3 ESE. The most was 228.6 mm (9.0 in) on 17 September 1975.
Record daily precipitation for each month at Arecibo 3 ESE
MonthRecord daily precipitation (mm)Date
Jan125.7 mm (4.9 in)20 January 1973
Feb108.0 mm (4.3 in)20 February 1971
Mar146.6 mm (5.8 in)26 March 1963
Apr104.6 mm (4.1 in)22 April 1961
May140.7 mm (5.5 in)18 May 1956
Jun88.4 mm (3.5 in)15 June 1942
Jul104.4 mm (4.1 in)5 July 1934
Aug134.6 mm (5.3 in)31 August 1979
Sep228.6 mm (9.0 in)17 September 1975
Oct148.6 mm (5.9 in)8 October 1977
Nov153.7 mm (6.1 in)26 November 1963
Dec161.3 mm (6.4 in)14 December 1968

Period of Record Coverage

1931 to 1999
Days with data per year at Arecibo 3 ESE 66 years of record at Arecibo 3 ESE, 1931 to 1999. 15 years have data for under 90 percent of days and are left out of rankings: 1931, 1951, 1952, 1966, 1977, 1982, 1983, 1984 and others. 1931: 162 of 365 days1933: 365 of 365 days1934: 364 of 365 days1935: 365 of 365 days1937: 362 of 365 days1939: 357 of 365 days1940: 365 of 366 days1941: 361 of 365 days1942: 364 of 365 days1943: 361 of 365 days1944: 362 of 366 days1945: 364 of 365 days1946: 364 of 365 days1947: 365 of 365 days1948: 364 of 366 days1949: 355 of 365 days1950: 365 of 365 days1951: 273 of 365 days1952: 292 of 366 days1953: 365 of 365 days1954: 361 of 365 days1955: 365 of 365 days1956: 364 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 365 of 366 days1961: 364 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 303 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 364 of 365 days1971: 365 of 365 days1972: 336 of 366 days1973: 334 of 365 days1974: 364 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 303 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 334 of 365 days1982: 228 of 365 days1983: 221 of 365 days1984: 240 of 366 days1985: 243 of 365 days1986: 228 of 365 days1987: 101 of 365 days1988: 343 of 366 days1989: 272 of 365 days1990: 250 of 365 days1991: 359 of 365 days1992: 305 of 366 days1993: 362 of 365 days1994: 363 of 365 days1995: 364 of 365 days1996: 333 of 366 days1997: 330 of 365 days1998: 362 of 365 days1999: 31 of 365 days194019501960197019801990
66 years of record at Arecibo 3 ESE, 1931 to 1999. 15 years have data for under 90 percent of days and are left out of rankings: 1931, 1951, 1952, 1966, 1977, 1982, 1983, 1984 and others.
Days with data per year at Arecibo 3 ESE
YearDays with dataShare of yearComplete
193116244%No
1933365100%Yes
1934364100%Yes
1935365100%Yes
193736299%Yes
193935798%Yes
1940365100%Yes
194136199%Yes
1942364100%Yes
194336199%Yes
194436299%Yes
1945364100%Yes
1946364100%Yes
1947365100%Yes
194836499%Yes
194935597%Yes
1950365100%Yes
195127375%No
195229280%No
1953365100%Yes
195436199%Yes
1955365100%Yes
195636499%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960365100%Yes
1961364100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
196630383%No
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970364100%Yes
1971365100%Yes
197233692%Yes
197333492%Yes
1974364100%Yes
1975365100%Yes
1976366100%Yes
197730383%No
1978365100%Yes
1979365100%Yes
1980366100%Yes
198133492%Yes
198222862%No
198322161%No
198424066%No
198524367%No
198622862%No
198710128%No
198834394%Yes
198927275%No
199025068%No
199135998%Yes
199230583%No
199336299%Yes
199436399%Yes
1995364100%Yes
199633391%Yes
199733090%Yes
199836299%Yes
1999318%No

Latest Records

20
Latest records at Arecibo 3 ESE
DateStationRecordValueBeat old record byOld record stoodSignificance
11 January 1999Arecibo 3 ESE, PRdaily high max (Tie)31.7 C (89.1 F)tie19 years2 of 100 (Routine)
9 January 1999Arecibo 3 ESE, PRdaily high max (Tie)32.2 C (90.0 F)tie40 years4 of 100 (Routine)
4 January 1999Arecibo 3 ESE, PRdaily high max32.2 C (90.0 F)0.5 C (0.9 F)20 years15 of 100 (Routine)
1 January 1999Arecibo 3 ESE, PRdaily high max (Tie)32.2 C (90.0 F)tie19 years2 of 100 (Routine)
26 December 1998Arecibo 3 ESE, PRdaily high min (Tie)21.1 C (70.0 F)tie17 years2 of 100 (Routine)
25 December 1998Arecibo 3 ESE, PRdaily high min (Tie)21.1 C (70.0 F)tie20 years3 of 100 (Routine)
24 December 1998Arecibo 3 ESE, PRdaily high min (Tie)21.7 C (71.1 F)tie20 years3 of 100 (Routine)
19 December 1998Arecibo 3 ESE, PRdaily high max (Tie)31.7 C (89.1 F)tie55 years5 of 100 (Routine)
18 December 1998Arecibo 3 ESE, PRdaily high max (Tie)32.2 C (90.0 F)tie19 years2 of 100 (Routine)
13 December 1998Arecibo 3 ESE, PRdaily high max (Tie)31.7 C (89.1 F)tie60 years6 of 100 (Routine)
12 December 1998Arecibo 3 ESE, PRdaily high max (Tie)32.2 C (90.0 F)tie19 years2 of 100 (Routine)
9 December 1998Arecibo 3 ESE, PRdaily high min21.7 C (71.1 F)0.6 C (1.1 F)67 years30 of 100 (Routine)
8 December 1998Arecibo 3 ESE, PRdaily high min (Tie)21.1 C (70.0 F)tie59 years5 of 100 (Routine)
1 December 1998Arecibo 3 ESE, PRdaily rain48.3 mm (1.9 in)3.8 mm (0.15 in)36 years19 of 100 (Routine)
28 November 1998Arecibo 3 ESE, PRdaily low max (Tie)26.7 C (80.1 F)tie48 years5 of 100 (Routine)
17 November 1998Arecibo 3 ESE, PRdaily high max (Tie)32.8 C (91.0 F)tie60 years6 of 100 (Routine)
30 October 1998Arecibo 3 ESE, PRdaily rain74.7 mm (2.9 in)27.7 mm (1.1 in)9 years27 of 100 (Routine)
28 October 1998Arecibo 3 ESE, PRdaily high max33.9 C (93.0 F)1.1 C (2.0 F)60 years34 of 100 (Routine)
12 October 1998Arecibo 3 ESE, PRdaily high max (Tie)34.4 C (93.9 F)tie4 years1 of 100 (Routine)
5 October 1998Arecibo 3 ESE, PRdaily high max (Tie)33.9 C (93.0 F)tie56 years5 of 100 (Routine)

Climate Trend

43 complete years, 1933 to 1995
Annual mean temperature at Arecibo 3 ESE as warming stripes, 1933 to 1995 One stripe for each of 43 complete years at Arecibo 3 ESE, 1933 to 1995. Blue stripes are years cooler than the station's own mean of 25.4 C (77.6 F); red stripes are warmer. The coolest year was 1935, at 24.7 C (76.4 F), and the warmest was 1980, at 26.1 C (79.0 F). The strongest colour marks a difference of 0.8 C (1.4 F). 1933: 25.2 C, -0.2 C from the station mean1934: 24.9 C, -0.5 C from the station mean1935: 24.7 C, -0.7 C from the station mean1937: 25.1 C, -0.3 C from the station mean1939: 25.0 C, -0.4 C from the station mean1941: 25.5 C, +0.1 C from the station mean1942: 25.6 C, +0.2 C from the station mean1943: 25.3 C, -0.1 C from the station mean1944: 25.0 C, -0.4 C from the station mean1945: 24.9 C, -0.5 C from the station mean1946: 25.1 C, -0.3 C from the station mean1947: 25.4 C, 0.0 C from the station mean1948: 25.5 C, +0.2 C from the station mean1949: 25.0 C, -0.4 C from the station mean1950: 24.8 C, -0.6 C from the station mean1953: 25.2 C, -0.2 C from the station mean1954: 25.2 C, -0.2 C from the station mean1955: 25.2 C, -0.2 C from the station mean1956: 25.0 C, -0.4 C from the station mean1957: 25.3 C, 0.0 C from the station mean1958: 25.8 C, +0.4 C from the station mean1959: 25.5 C, +0.2 C from the station mean1960: 25.8 C, +0.5 C from the station mean1961: 25.3 C, -0.1 C from the station mean1962: 25.6 C, +0.2 C from the station mean1963: 25.8 C, +0.5 C from the station mean1964: 25.7 C, +0.4 C from the station mean1965: 25.1 C, -0.2 C from the station mean1967: 25.5 C, +0.2 C from the station mean1968: 25.5 C, +0.2 C from the station mean1969: 25.8 C, +0.4 C from the station mean1970: 25.6 C, +0.3 C from the station mean1971: 25.1 C, -0.3 C from the station mean1975: 25.3 C, -0.1 C from the station mean1976: 25.1 C, -0.3 C from the station mean1978: 25.8 C, +0.4 C from the station mean1979: 25.6 C, +0.2 C from the station mean1980: 26.1 C, +0.8 C from the station mean1988: 25.8 C, +0.5 C from the station mean1991: 25.0 C, -0.4 C from the station mean1993: 25.8 C, +0.5 C from the station mean1994: 25.9 C, +0.5 C from the station mean1995: 25.3 C, -0.1 C from the station mean1933194019501960197019801990
One stripe for each of 43 complete years at Arecibo 3 ESE, 1933 to 1995. Blue stripes are years cooler than the station's own mean of 25.4 C (77.6 F); red stripes are warmer. The coolest year was 1935, at 24.7 C (76.4 F), and the warmest was 1980, at 26.1 C (79.0 F). The strongest colour marks a difference of 0.8 C (1.4 F).
Annual mean temperature at Arecibo 3 ESE as warming stripes, 1933 to 1995
YearAnnual mean temperatureDifference from the station mean
193325.2 C-0.18 C
193424.9 C-0.48 C
193524.7 C-0.67 C
193725.1 C-0.27 C
193925.0 C-0.35 C
194125.5 C+0.11 C
194225.6 C+0.20 C
194325.3 C-0.08 C
194425.0 C-0.41 C
194524.9 C-0.49 C
194625.1 C-0.31 C
194725.4 C+0.05 C
194825.5 C+0.17 C
194925.0 C-0.38 C
195024.8 C-0.61 C
195325.2 C-0.18 C
195425.2 C-0.16 C
195525.2 C-0.16 C
195625.0 C-0.38 C
195725.3 C-0.02 C
195825.8 C+0.39 C
195925.5 C+0.17 C
196025.8 C+0.48 C
196125.3 C-0.05 C
196225.6 C+0.22 C
196325.8 C+0.47 C
196425.7 C+0.36 C
196525.1 C-0.22 C
196725.5 C+0.16 C
196825.5 C+0.17 C
196925.8 C+0.42 C
197025.6 C+0.28 C
197125.1 C-0.27 C
197525.3 C-0.07 C
197625.1 C-0.30 C
197825.8 C+0.45 C
197925.6 C+0.23 C
198026.1 C+0.76 C
198825.8 C+0.46 C
199125.0 C-0.37 C
199325.8 C+0.46 C
199425.9 C+0.54 C
199525.3 C-0.11 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1933 to 1995. In Fahrenheit: 0.2 F (0.1 to 0.3) 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 Arecibo 3 ESE
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 decade1933 to 199543Rise
Mean daily maximum0.2 C (0.1 to 0.2) per decade0.3 F (0.2 to 0.4) per decade1933 to 199543Rise
Mean daily minimum0.03 C (-0.03 to 0.10) per decade0.06 F (-0.05 to 0.17) per decade1933 to 199543Not 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

1931 to 1999
Yearly extremes at Arecibo 3 ESE: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)198535.0 C (95.0 F)66
Coldest night (TNn)11.1 C (52.0 F)198415.6 C (60.1 F)66
Wettest day (Rx1day)228.6 mm (9.0 in)197578.9 mm (3.1 in)66
Wettest five days (Rx5day)307.8 mm (12.1 in)1968129.1 mm (5.1 in)66
Longest dry spell (CDD)40 days195119 days66

Hottest day (TXx)

Hottest day (TXx) at Arecibo 3 ESE by year The hottest day of the year at Arecibo 3 ESE, 1931 to 1999. The record is 37.2 C (99.0 F) in 1985, marked on the chart; the median year is 35.0 C (95.0 F). 32343638194019601980Record: 37.2 C (99.0 F) in 1985
The hottest day of the year at Arecibo 3 ESE, 1931 to 1999. The record is 37.2 C (99.0 F) in 1985, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Arecibo 3 ESE by year
YearHottest day (TXx)
193134.4 C (93.9 F)
193334.4 C (93.9 F)
193433.3 C (91.9 F)
193532.8 C (91.0 F)
193735.6 C (96.1 F)
193934.4 C (93.9 F)
194034.4 C (93.9 F)
194133.9 C (93.0 F)
194233.9 C (93.0 F)
194333.9 C (93.0 F)
194433.3 C (91.9 F)
194532.8 C (91.0 F)
194633.9 C (93.0 F)
194735.0 C (95.0 F)
194834.4 C (93.9 F)
194934.4 C (93.9 F)
195036.1 C (97.0 F)
195135.0 C (95.0 F)
195234.4 C (93.9 F)
195335.0 C (95.0 F)
195435.0 C (95.0 F)
195534.4 C (93.9 F)
195635.6 C (96.1 F)
195733.9 C (93.0 F)
195835.0 C (95.0 F)
195935.6 C (96.1 F)
196033.9 C (93.0 F)
196133.9 C (93.0 F)
196235.6 C (96.1 F)
196335.6 C (96.1 F)
196435.0 C (95.0 F)
196533.3 C (91.9 F)
196634.4 C (93.9 F)
196735.0 C (95.0 F)
196834.4 C (93.9 F)
196935.6 C (96.1 F)
197034.4 C (93.9 F)
197133.9 C (93.0 F)
197236.1 C (97.0 F)
197335.6 C (96.1 F)
197435.0 C (95.0 F)
197533.3 C (91.9 F)
197633.9 C (93.0 F)
197734.4 C (93.9 F)
197835.0 C (95.0 F)
197936.1 C (97.0 F)
198035.0 C (95.0 F)
198136.1 C (97.0 F)
198234.4 C (93.9 F)
198334.4 C (93.9 F)
198435.0 C (95.0 F)
198537.2 C (99.0 F)
198635.0 C (95.0 F)
198737.2 C (99.0 F)
198836.1 C (97.0 F)
198935.0 C (95.0 F)
199035.6 C (96.1 F)
199134.4 C (93.9 F)
199235.0 C (95.0 F)
199336.7 C (98.1 F)
199435.6 C (96.1 F)
199535.6 C (96.1 F)
199636.1 C (97.0 F)
199736.7 C (98.1 F)
199836.1 C (97.0 F)
199932.2 C (90.0 F)

Coldest night (TNn)

Coldest night (TNn) at Arecibo 3 ESE by year The coldest night of the year at Arecibo 3 ESE, 1931 to 1999. The record is 11.1 C (52.0 F) in 1984, marked on the chart; the median year is 15.6 C (60.1 F). 1012141618194019601980Record: 11.1 C (52.0 F) in 1984
The coldest night of the year at Arecibo 3 ESE, 1931 to 1999. The record is 11.1 C (52.0 F) in 1984, marked on the chart; the median year is 15.6 C (60.1 F).
Coldest night (TNn) at Arecibo 3 ESE by year
YearColdest night (TNn)
193117.8 C (64.0 F)
193316.1 C (61.0 F)
193415.6 C (60.1 F)
193515.6 C (60.1 F)
193715.6 C (60.1 F)
193915.0 C (59.0 F)
194015.0 C (59.0 F)
194115.6 C (60.1 F)
194215.0 C (59.0 F)
194315.6 C (60.1 F)
194415.0 C (59.0 F)
194515.6 C (60.1 F)
194615.6 C (60.1 F)
194715.6 C (60.1 F)
194816.1 C (61.0 F)
194915.6 C (60.1 F)
195015.6 C (60.1 F)
195115.0 C (59.0 F)
195215.6 C (60.1 F)
195314.4 C (57.9 F)
195413.3 C (55.9 F)
195515.6 C (60.1 F)
195615.6 C (60.1 F)
195716.7 C (62.1 F)
195815.6 C (60.1 F)
195915.6 C (60.1 F)
196016.7 C (62.1 F)
196116.1 C (61.0 F)
196216.1 C (61.0 F)
196316.7 C (62.1 F)
196413.9 C (57.0 F)
196516.1 C (61.0 F)
196616.1 C (61.0 F)
196716.7 C (62.1 F)
196814.4 C (57.9 F)
196915.6 C (60.1 F)
197015.6 C (60.1 F)
197116.7 C (62.1 F)
197216.1 C (61.0 F)
197314.4 C (57.9 F)
197414.4 C (57.9 F)
197515.0 C (59.0 F)
197616.1 C (61.0 F)
197716.1 C (61.0 F)
197816.1 C (61.0 F)
197915.6 C (60.1 F)
198016.1 C (61.0 F)
198116.7 C (62.1 F)
198216.1 C (61.0 F)
198312.2 C (54.0 F)
198411.1 C (52.0 F)
198513.9 C (57.0 F)
198611.7 C (53.1 F)
198715.0 C (59.0 F)
198815.0 C (59.0 F)
198915.6 C (60.1 F)
199014.4 C (57.9 F)
199113.3 C (55.9 F)
199211.7 C (53.1 F)
199313.9 C (57.0 F)
199414.4 C (57.9 F)
199512.8 C (55.0 F)
199615.0 C (59.0 F)
199713.3 C (55.9 F)
199813.9 C (57.0 F)
199916.7 C (62.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Arecibo 3 ESE by year The wettest day of the year at Arecibo 3 ESE, 1931 to 1999. The record is 228.6 mm (9.0 in) in 1975, marked on the chart; the median year is 78.9 mm (3.1 in). 0100200300194019601980Record: 228.6 mm (9.0 in) in 1975
The wettest day of the year at Arecibo 3 ESE, 1931 to 1999. The record is 228.6 mm (9.0 in) in 1975, marked on the chart; the median year is 78.9 mm (3.1 in).
Wettest day (Rx1day) at Arecibo 3 ESE by year
YearWettest day (Rx1day)
1931109.0 mm (4.3 in)
193358.9 mm (2.3 in)
1934138.9 mm (5.5 in)
193575.4 mm (3.0 in)
193764.0 mm (2.5 in)
1939105.9 mm (4.2 in)
194090.7 mm (3.6 in)
194148.8 mm (1.9 in)
194296.5 mm (3.8 in)
194372.1 mm (2.8 in)
194471.9 mm (2.8 in)
194565.0 mm (2.6 in)
194679.0 mm (3.1 in)
194751.8 mm (2.0 in)
194884.8 mm (3.3 in)
194978.0 mm (3.1 in)
195086.9 mm (3.4 in)
195174.7 mm (2.9 in)
195265.0 mm (2.6 in)
195378.7 mm (3.1 in)
195476.2 mm (3.0 in)
195560.2 mm (2.4 in)
1956140.7 mm (5.5 in)
195798.3 mm (3.9 in)
195850.8 mm (2.0 in)
195963.5 mm (2.5 in)
196057.4 mm (2.3 in)
1961104.6 mm (4.1 in)
196256.1 mm (2.2 in)
1963153.7 mm (6.1 in)
196459.4 mm (2.3 in)
1965119.4 mm (4.7 in)
196695.3 mm (3.8 in)
196790.7 mm (3.6 in)
1968161.3 mm (6.4 in)
1969101.6 mm (4.0 in)
1970114.3 mm (4.5 in)
1971108.0 mm (4.3 in)
197250.8 mm (2.0 in)
1973125.7 mm (4.9 in)
1974108.0 mm (4.3 in)
1975228.6 mm (9.0 in)
197678.7 mm (3.1 in)
1977148.6 mm (5.9 in)
1978103.1 mm (4.1 in)
1979134.6 mm (5.3 in)
198078.7 mm (3.1 in)
1981133.4 mm (5.3 in)
198269.3 mm (2.7 in)
198398.0 mm (3.9 in)
198480.5 mm (3.2 in)
198599.3 mm (3.9 in)
198661.2 mm (2.4 in)
198750.8 mm (2.0 in)
198853.1 mm (2.1 in)
198950.3 mm (2.0 in)
199054.4 mm (2.1 in)
199168.1 mm (2.7 in)
199291.4 mm (3.6 in)
1993106.7 mm (4.2 in)
199441.1 mm (1.6 in)
1995123.2 mm (4.9 in)
199664.0 mm (2.5 in)
199774.2 mm (2.9 in)
1998127.0 mm (5.0 in)
199914.2 mm (0.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Arecibo 3 ESE by year The wettest five days of the year at Arecibo 3 ESE, 1931 to 1999. The record is 307.8 mm (12.1 in) in 1968, marked on the chart; the median year is 129.1 mm (5.1 in). 0100200300400194019601980Record: 307.8 mm (12.1 in) in 1968
The wettest five days of the year at Arecibo 3 ESE, 1931 to 1999. The record is 307.8 mm (12.1 in) in 1968, marked on the chart; the median year is 129.1 mm (5.1 in).
Wettest five days (Rx5day) at Arecibo 3 ESE by year
YearWettest five days (Rx5day)
1931118.9 mm (4.7 in)
1933159.7 mm (6.3 in)
1934236.0 mm (9.3 in)
1935105.7 mm (4.2 in)
1937122.2 mm (4.8 in)
1939169.4 mm (6.7 in)
1940180.0 mm (7.1 in)
194193.2 mm (3.7 in)
1942185.6 mm (7.3 in)
1943101.1 mm (4.0 in)
1944162.1 mm (6.4 in)
1945141.4 mm (5.6 in)
1946129.1 mm (5.1 in)
1947138.2 mm (5.4 in)
1948136.6 mm (5.4 in)
1949116.3 mm (4.6 in)
1950229.8 mm (9.0 in)
1951105.7 mm (4.2 in)
1952118.0 mm (4.6 in)
1953115.5 mm (4.5 in)
1954104.2 mm (4.1 in)
195578.5 mm (3.1 in)
1956277.9 mm (10.9 in)
1957110.0 mm (4.3 in)
1958101.9 mm (4.0 in)
195990.8 mm (3.6 in)
196089.0 mm (3.5 in)
1961178.6 mm (7.0 in)
1962122.9 mm (4.8 in)
1963287.6 mm (11.3 in)
1964107.5 mm (4.2 in)
1965233.7 mm (9.2 in)
1966123.1 mm (4.8 in)
1967139.0 mm (5.5 in)
1968307.8 mm (12.1 in)
1969139.6 mm (5.5 in)
1970268.5 mm (10.6 in)
1971132.1 mm (5.2 in)
197296.5 mm (3.8 in)
1973128.2 mm (5.0 in)
1974184.8 mm (7.3 in)
1975240.3 mm (9.5 in)
1976102.6 mm (4.0 in)
1977245.1 mm (9.6 in)
1978133.4 mm (5.3 in)
1979225.5 mm (8.9 in)
198093.8 mm (3.7 in)
1981230.4 mm (9.1 in)
1982143.3 mm (5.6 in)
198364.0 mm (2.5 in)
198444.8 mm (1.8 in)
198553.1 mm (2.1 in)
198688.4 mm (3.5 in)
198756.1 mm (2.2 in)
1988144.8 mm (5.7 in)
198964.5 mm (2.5 in)
1990142.8 mm (5.6 in)
1991109.7 mm (4.3 in)
1992129.0 mm (5.1 in)
1993165.1 mm (6.5 in)
199492.0 mm (3.6 in)
1995200.1 mm (7.9 in)
199686.0 mm (3.4 in)
1997152.4 mm (6.0 in)
1998246.2 mm (9.7 in)
199934.8 mm (1.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Arecibo 3 ESE by year The longest dry spell of the year at Arecibo 3 ESE, 1931 to 1999. The record is 40 days in 1951, marked on the chart; the median year is 19 days. 010203040194019601980Record: 40 days in 1951
The longest dry spell of the year at Arecibo 3 ESE, 1931 to 1999. The record is 40 days in 1951, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Arecibo 3 ESE by year
YearLongest dry spell (CDD)
193123 days
193319 days
193413 days
193527 days
193722 days
193911 days
194015 days
194122 days
194220 days
194315 days
194417 days
194527 days
194619 days
194739 days
194822 days
194932 days
195027 days
195140 days
195222 days
195313 days
195413 days
195516 days
195616 days
195714 days
195827 days
195923 days
196015 days
196116 days
196211 days
196321 days
196417 days
196527 days
196614 days
196716 days
196813 days
196916 days
197019 days
197114 days
197215 days
197335 days
197419 days
197520 days
197623 days
197721 days
197817 days
197921 days
198019 days
198122 days
198233 days
198330 days
198430 days
198520 days
198613 days
19875 days
198821 days
198932 days
199013 days
199119 days
199223 days
199319 days
199421 days
199519 days
19969 days
199723 days
199813 days
19997 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

52 years, 1933 to 1998

A day with at least 83.6 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 215.2 mm (8.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Arecibo 3 ESE: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years83.6 mm (3.3 in)
5 years114.9 mm (4.5 in)
10 years137.1 mm (5.4 in)
25 years167.0 mm (6.6 in)
50 years190.6 mm (7.5 in)
100 years215.2 mm (8.5 in)Longer than the 52 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, 52 years of values from 1933 to 1998.

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: 228.6 mm (9.0 in) in 1975; 161.3 mm (6.4 in) in 1968; 153.7 mm (6.1 in) in 1963.

Download the Data

  • Data for Arecibo 3 ESE standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Arecibo 3 ESE 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 (2025-12-31).