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Cidra 1 E Weather Records (RQC00662634)

Record envelope, standing records and threshold days for Cidra 1 E (RQC00662634), PR, Puerto Rico [United States], with 96 years of record.

Key Facts for Cidra 1 E

  • Cidra 1 E (RQC00662634) is a weather station in PR, Puerto Rico [United States] at 18.18 latitude and -66.15 longitude, 427 m (1,400 ft) above sea level.
  • The station reports from 1899 to 1994, 96 years of record.
  • 1,464 records set at Cidra 1 E still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Cidra 1 E set a daily record precipitation of 52.6 mm (2.1 in) on 30 April 1993.

About the Station

  • Location: PR, Puerto Rico [United States], 18.18 latitude, -66.15 longitude.
  • Elevation: 427 m (1,400 ft).
  • Period of record: 1899 to 1994, 96 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 Cidra 1 E, with 2026 drawn through them The band shows the record high and record low for each calendar day at Cidra 1 E. The lines show the 2026 daily maximum and minimum. 0 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 Cidra 1 E. 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 Cidra 1 E, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan32.2 C (90.0 F)7.2 C (45.0 F)n/an/a
Feb32.8 C (91.0 F)8.3 C (46.9 F)n/an/a
Mar32.2 C (90.0 F)7.2 C (45.0 F)n/an/a
Apr33.9 C (93.0 F)7.8 C (46.0 F)n/an/a
May34.4 C (93.9 F)7.2 C (45.0 F)n/an/a
Jun34.4 C (93.9 F)12.2 C (54.0 F)n/an/a
Jul34.4 C (93.9 F)11.7 C (53.1 F)n/an/a
Aug39.4 C (102.9 F)11.7 C (53.1 F)n/an/a
Sep36.7 C (98.1 F)10.6 C (51.1 F)n/an/a
Oct34.4 C (93.9 F)10.0 C (50.0 F)n/an/a
Nov35.0 C (95.0 F)10.0 C (50.0 F)n/an/a
Dec32.8 C (91.0 F)9.4 C (48.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Cidra 1 E by the year they were set 1,464 records at Cidra 1 E still stand. 1902 holds the most, with 170. 0501001502001899: 231900: 261901: 881902: 1701903: 721904: 651905: 971906: 551907: 291908: 171909: 171910: 381911: 231912: 191914: 291915: 171924: 91925: 51926: 141927: 11928: 381929: 341931: 711932: 371933: 131934: 21935: 81936: 231937: 41938: 61939: 11940: 31941: 61942: 21944: 121945: 11947: 71948: 351949: 831950: 471951: 211952: 141953: 81955: 151956: 201957: 41958: 171959: 61960: 181961: 81963: 11965: 381966: 131967: 81968: 51969: 21970: 31971: 51977: 21978: 21979: 7189919061914192919371945195319611970
1,464 records at Cidra 1 E still stand. 1902 holds the most, with 170.
Standing records at Cidra 1 E by the year they were set
Year setStanding records
189923
190026
190188
1902170
190372
190465
190597
190655
190729
190817
190917
191038
191123
191219
191429
191517
19249
19255
192614
19271
192838
192934
193171
193237
193313
19342
19358
193623
19374
19386
19391
19403
19416
19422
194412
19451
19477
194835
194983
195047
195121
195214
19538
195515
195620
19574
195817
19596
196018
19618
19631
196538
196613
19678
19685
19692
19703
19715
19772
19782
19797

All-Time Record Progression

3 new records
When Cidra 1 E set new all-time records 3 all-time records were set at Cidra 1 E between 6 September 1960 and 31 August 1979. Each dot is a new record. Record daily precipitation6 September 1960: Record daily precipitation 257.0 mm (10.1 in)27 August 1961: Record daily precipitation 312.2 mm (12.3 in)31 August 1979: Record daily precipitation 382.3 mm (15.1 in)19601965197019751980
3 all-time records were set at Cidra 1 E between 6 September 1960 and 31 August 1979. Each dot is a new record.
When Cidra 1 E set new all-time records
DateKindDetail
1960-09-06Record daily precipitationRecord daily precipitation 257.0 mm (10.1 in)
1961-08-27Record daily precipitationRecord daily precipitation 312.2 mm (12.3 in)
1979-08-31Record daily precipitationRecord daily precipitation 382.3 mm (15.1 in)

Wettest Day of Each Month

Aug: 382.3 mm (15.1 in)
Record daily precipitation for each month at Cidra 1 E The wettest day on record for each calendar month at Cidra 1 E. The most was 382.3 mm (15.1 in) on 31 August 1979. 0100200300400 Jan: 186.7 mm (7.4 in), 12 January 1905 Jan Feb: 101.6 mm (4.0 in), 5 February 1911 Feb Mar: 94.0 mm (3.7 in), 8 March 1905 Mar Apr: 151.6 mm (6.0 in), 13 April 1945 Apr May: 206.5 mm (8.1 in), 6 May 1928 May Jun: 165.4 mm (6.5 in), 16 June 1943 Jun Jul: 238.0 mm (9.4 in), 24 July 1926 Jul Aug: 382.3 mm (15.1 in), 31 August 1979 Aug Sep: 257.0 mm (10.1 in), 6 September 1960 Sep Oct: 281.2 mm (11.1 in), 7 October 1985 Oct Nov: 170.2 mm (6.7 in), 3 November 1984 Nov Dec: 109.2 mm (4.3 in), 19 December 1902 Dec
The wettest day on record for each calendar month at Cidra 1 E. The most was 382.3 mm (15.1 in) on 31 August 1979.
Record daily precipitation for each month at Cidra 1 E
MonthRecord daily precipitation (mm)Date
Jan186.7 mm (7.4 in)12 January 1905
Feb101.6 mm (4.0 in)5 February 1911
Mar94.0 mm (3.7 in)8 March 1905
Apr151.6 mm (6.0 in)13 April 1945
May206.5 mm (8.1 in)6 May 1928
Jun165.4 mm (6.5 in)16 June 1943
Jul238.0 mm (9.4 in)24 July 1926
Aug382.3 mm (15.1 in)31 August 1979
Sep257.0 mm (10.1 in)6 September 1960
Oct281.2 mm (11.1 in)7 October 1985
Nov170.2 mm (6.7 in)3 November 1984
Dec109.2 mm (4.3 in)19 December 1902

Period of Record Coverage

1899 to 1979
Days with data per year at Cidra 1 E 66 years of record at Cidra 1 E, 1899 to 1979. 38 years have data for under 90 percent of days and are left out of rankings: 1899, 1900, 1901, 1904, 1906, 1909, 1911, 1912 and others. 1899: 109 of 365 days1900: 212 of 365 days1901: 294 of 365 days1902: 364 of 365 days1903: 365 of 365 days1904: 225 of 366 days1905: 365 of 365 days1906: 206 of 365 days1907: 364 of 365 days1908: 360 of 366 days1909: 287 of 365 days1910: 348 of 365 days1911: 201 of 365 days1912: 156 of 366 days1914: 340 of 365 days1915: 148 of 365 days1923: 104 of 365 days1924: 92 of 366 days1925: 350 of 365 days1926: 227 of 365 days1927: 72 of 365 days1928: 334 of 366 days1929: 273 of 365 days1931: 356 of 365 days1932: 364 of 366 days1933: 334 of 365 days1934: 365 of 365 days1935: 334 of 365 days1936: 279 of 366 days1937: 365 of 365 days1938: 353 of 365 days1939: 270 of 365 days1940: 274 of 366 days1941: 118 of 365 days1942: 306 of 365 days1943: 300 of 365 days1944: 357 of 366 days1945: 105 of 365 days1947: 53 of 365 days1948: 300 of 366 days1949: 195 of 365 days1950: 365 of 365 days1951: 261 of 365 days1952: 329 of 366 days1953: 296 of 365 days1954: 277 of 365 days1955: 364 of 365 days1956: 359 of 366 days1957: 330 of 365 days1958: 318 of 365 days1959: 269 of 365 days1960: 333 of 366 days1961: 365 of 365 days1962: 335 of 365 days1963: 358 of 365 days1964: 30 of 366 days1965: 214 of 365 days1966: 364 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 120 of 365 days1970: 152 of 365 days1971: 122 of 365 days1977: 92 of 365 days1978: 148 of 365 days1979: 150 of 365 days190019101940195019601970
66 years of record at Cidra 1 E, 1899 to 1979. 38 years have data for under 90 percent of days and are left out of rankings: 1899, 1900, 1901, 1904, 1906, 1909, 1911, 1912 and others.
Days with data per year at Cidra 1 E
YearDays with dataShare of yearComplete
189910930%No
190021258%No
190129481%No
1902364100%Yes
1903365100%Yes
190422561%No
1905365100%Yes
190620656%No
1907364100%Yes
190836098%Yes
190928779%No
191034895%Yes
191120155%No
191215643%No
191434093%Yes
191514841%No
192310428%No
19249225%No
192535096%Yes
192622762%No
19277220%No
192833491%Yes
192927375%No
193135698%Yes
193236499%Yes
193333492%Yes
1934365100%Yes
193533492%Yes
193627976%No
1937365100%Yes
193835397%Yes
193927074%No
194027475%No
194111832%No
194230684%No
194330082%No
194435798%Yes
194510529%No
19475315%No
194830082%No
194919553%No
1950365100%Yes
195126172%No
195232990%No
195329681%No
195427776%No
1955364100%Yes
195635998%Yes
195733090%Yes
195831887%No
195926974%No
196033391%Yes
1961365100%Yes
196233592%Yes
196335898%Yes
1964308%No
196521459%No
1966364100%Yes
1967365100%Yes
1968366100%Yes
196912033%No
197015242%No
197112233%No
19779225%No
197814841%No
197915041%No

Latest Records

20
Latest records at Cidra 1 E
DateStationRecordValueBeat old record byOld record stoodSignificance
30 April 1993Cidra 1 E, PRdaily rain52.6 mm (2.1 in)1.8 mm (0.07 in)60 years28 of 100 (Routine)
24 May 1992Cidra 1 E, PRdaily rain69.9 mm (2.8 in)11.5 mm (0.5 in)81 years39 of 100 (Notable)
16 July 1991Cidra 1 E, PRdaily rain111.3 mm (4.4 in)42.0 mm (1.7 in)81 years58 of 100 (Notable)
25 May 1991Cidra 1 E, PRdaily rain45.7 mm (1.8 in)10.1 mm (0.4 in)44 years27 of 100 (Routine)
31 December 1990Cidra 1 E, PRdaily rain52.8 mm (2.1 in)8.3 mm (0.33 in)80 years40 of 100 (Notable)
21 October 1990Cidra 1 E, PRdaily rain78.7 mm (3.1 in)42.6 mm (1.7 in)61 years47 of 100 (Notable)
19 October 1990Cidra 1 E, PRdaily rain55.4 mm (2.2 in)24.9 mm (1.0 in)81 years44 of 100 (Notable)
16 October 1990Cidra 1 E, PRdaily rain29.7 mm (1.2 in)2.8 mm (0.11 in)13 years14 of 100 (Routine)
14 March 1990Cidra 1 E, PRdaily rain29.2 mm (1.1 in)13.2 mm (0.5 in)29 years30 of 100 (Routine)
24 September 1989Cidra 1 E, PRdaily rain51.3 mm (2.0 in)23.4 mm (0.9 in)60 years38 of 100 (Notable)
18 September 1989Cidra 1 E, PRdaily rain101.6 mm (4.0 in)44.4 mm (1.7 in)40 years43 of 100 (Notable)
19 August 1989Cidra 1 E, PRdaily rain23.9 mm (0.9 in)0.8 mm (0.03 in)30 years18 of 100 (Routine)
5 August 1989Cidra 1 E, PRdaily rain51.8 mm (2.0 in)11.2 mm (0.4 in)40 years25 of 100 (Routine)
22 February 1989Cidra 1 E, PRdaily rain33.5 mm (1.3 in)4.3 mm (0.17 in)75 years35 of 100 (Notable)
18 February 1989Cidra 1 E, PRdaily rain99.1 mm (3.9 in)82.3 mm (3.2 in)78 years72 of 100 (Major)
17 February 1989Cidra 1 E, PRdaily rain72.4 mm (2.9 in)45.7 mm (1.8 in)74 years71 of 100 (Major)
18 November 1988Cidra 1 E, PRdaily rain25.1 mm (1.0 in)1.0 mm (0.04 in)88 years35 of 100 (Notable)
17 November 1988Cidra 1 E, PRdaily rain (Tie)53.8 mm (2.1 in)tie3 years2 of 100 (Routine)
25 August 1988Cidra 1 E, PRdaily rain112.8 mm (4.4 in)63.3 mm (2.5 in)54 years52 of 100 (Notable)
2 July 1988Cidra 1 E, PRdaily rain43.7 mm (1.7 in)15.3 mm (0.6 in)62 years36 of 100 (Notable)

Climate Trend

19 complete years, 1902 to 1968
Annual mean temperature at Cidra 1 E as warming stripes, 1902 to 1968 One stripe for each of 19 complete years at Cidra 1 E, 1902 to 1968. Blue stripes are years cooler than the station's own mean of 22.8 C (73.0 F); red stripes are warmer. The coolest year was 1903, at 21.7 C (71.1 F), and the warmest was 1902, at 24.4 C (75.8 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1902: 24.4 C, +1.6 C from the station mean1903: 21.7 C, -1.0 C from the station mean1905: 23.0 C, +0.3 C from the station mean1907: 23.0 C, +0.2 C from the station mean1908: 23.3 C, +0.5 C from the station mean1925: 23.4 C, +0.6 C from the station mean1931: 23.2 C, +0.5 C from the station mean1932: 23.1 C, +0.3 C from the station mean1934: 22.1 C, -0.7 C from the station mean1937: 22.1 C, -0.6 C from the station mean1944: 22.9 C, +0.1 C from the station mean1950: 21.9 C, -0.9 C from the station mean1955: 21.9 C, -0.9 C from the station mean1956: 22.1 C, -0.6 C from the station mean1961: 22.8 C, +0.1 C from the station mean1963: 23.0 C, +0.2 C from the station mean1966: 22.7 C, -0.1 C from the station mean1967: 22.9 C, +0.1 C from the station mean1968: 23.0 C, +0.3 C from the station mean1902191019201930194019501960
One stripe for each of 19 complete years at Cidra 1 E, 1902 to 1968. Blue stripes are years cooler than the station's own mean of 22.8 C (73.0 F); red stripes are warmer. The coolest year was 1903, at 21.7 C (71.1 F), and the warmest was 1902, at 24.4 C (75.8 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Cidra 1 E as warming stripes, 1902 to 1968
YearAnnual mean temperatureDifference from the station mean
190224.4 C+1.59 C
190321.7 C-1.04 C
190523.0 C+0.27 C
190723.0 C+0.19 C
190823.3 C+0.53 C
192523.4 C+0.63 C
193123.2 C+0.48 C
193223.1 C+0.33 C
193422.1 C-0.71 C
193722.1 C-0.63 C
194422.9 C+0.13 C
195021.9 C-0.88 C
195521.9 C-0.87 C
195622.1 C-0.62 C
196122.8 C+0.07 C
196323.0 C+0.19 C
196622.7 C-0.06 C
196722.9 C+0.10 C
196823.0 C+0.25 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1899 to 1994
Yearly extremes at Cidra 1 E: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.4 C (102.9 F)190532.2 C (90.0 F)66
Coldest night (TNn)7.2 C (45.0 F)190411.7 C (53.1 F)65
Wettest day (Rx1day)382.3 mm (15.1 in)197993.2 mm (3.7 in)87
Wettest five days (Rx5day)732.5 mm (28.8 in)1970162.9 mm (6.4 in)87
Longest dry spell (CDD)187 days194515 days87

Hottest day (TXx)

Hottest day (TXx) at Cidra 1 E by year The hottest day of the year at Cidra 1 E, 1899 to 1994. The record is 39.4 C (102.9 F) in 1905, marked on the chart; the median year is 32.2 C (90.0 F). 2530354019001920194019601980Record: 39.4 C (102.9 F) in 1905
The hottest day of the year at Cidra 1 E, 1899 to 1994. The record is 39.4 C (102.9 F) in 1905, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Cidra 1 E by year
YearHottest day (TXx)
189931.1 C (88.0 F)
190032.8 C (91.0 F)
190133.9 C (93.0 F)
190235.0 C (95.0 F)
190332.2 C (90.0 F)
190432.8 C (91.0 F)
190539.4 C (102.9 F)
190635.0 C (95.0 F)
190732.8 C (91.0 F)
190832.8 C (91.0 F)
190932.2 C (90.0 F)
191032.2 C (90.0 F)
191131.7 C (89.1 F)
191231.7 C (89.1 F)
191433.9 C (93.0 F)
191532.2 C (90.0 F)
192331.1 C (88.0 F)
192432.2 C (90.0 F)
192532.2 C (90.0 F)
192633.9 C (93.0 F)
192730.0 C (86.0 F)
192832.8 C (91.0 F)
192933.9 C (93.0 F)
193134.4 C (93.9 F)
193235.6 C (96.1 F)
193333.9 C (93.0 F)
193430.6 C (87.1 F)
193532.2 C (90.0 F)
193630.0 C (86.0 F)
193731.1 C (88.0 F)
193832.2 C (90.0 F)
193934.4 C (93.9 F)
194030.0 C (86.0 F)
194130.0 C (86.0 F)
194231.7 C (89.1 F)
194332.2 C (90.0 F)
194431.7 C (89.1 F)
194531.7 C (89.1 F)
1946n/a
194731.7 C (89.1 F)
194835.0 C (95.0 F)
194933.9 C (93.0 F)
195030.6 C (87.1 F)
195130.0 C (86.0 F)
195232.2 C (90.0 F)
195332.2 C (90.0 F)
195430.0 C (86.0 F)
195531.1 C (88.0 F)
195630.6 C (87.1 F)
195731.7 C (89.1 F)
195831.7 C (89.1 F)
195931.1 C (88.0 F)
196033.9 C (93.0 F)
196131.1 C (88.0 F)
196231.1 C (88.0 F)
196331.7 C (89.1 F)
196427.8 C (82.0 F)
196529.4 C (84.9 F)
196632.2 C (90.0 F)
196733.9 C (93.0 F)
196832.8 C (91.0 F)
196932.8 C (91.0 F)
197030.6 C (87.1 F)
197129.4 C (84.9 F)
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
197730.6 C (87.1 F)
197830.6 C (87.1 F)
197929.4 C (84.9 F)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a

Coldest night (TNn)

Coldest night (TNn) at Cidra 1 E by year The coldest night of the year at Cidra 1 E, 1899 to 1994. The record is 7.2 C (45.0 F) in 1904, marked on the chart; the median year is 11.7 C (53.1 F). 57.51012.51517.519001920194019601980Record: 7.2 C (45.0 F) in 1904
The coldest night of the year at Cidra 1 E, 1899 to 1994. The record is 7.2 C (45.0 F) in 1904, marked on the chart; the median year is 11.7 C (53.1 F).
Coldest night (TNn) at Cidra 1 E by year
YearColdest night (TNn)
189916.7 C (62.1 F)
190013.3 C (55.9 F)
190111.1 C (52.0 F)
190212.2 C (54.0 F)
190310.0 C (50.0 F)
19047.2 C (45.0 F)
190510.0 C (50.0 F)
190611.1 C (52.0 F)
19078.9 C (48.0 F)
190811.7 C (53.1 F)
19099.4 C (48.9 F)
19107.2 C (45.0 F)
19117.2 C (45.0 F)
19128.9 C (48.0 F)
191410.0 C (50.0 F)
191510.6 C (51.1 F)
1923n/a
192412.8 C (55.0 F)
192512.2 C (54.0 F)
192611.1 C (52.0 F)
192712.8 C (55.0 F)
192813.3 C (55.9 F)
192913.3 C (55.9 F)
193110.0 C (50.0 F)
193210.0 C (50.0 F)
193313.3 C (55.9 F)
193410.0 C (50.0 F)
193510.6 C (51.1 F)
193611.1 C (52.0 F)
193710.6 C (51.1 F)
193811.1 C (52.0 F)
193911.1 C (52.0 F)
194010.0 C (50.0 F)
194113.3 C (55.9 F)
194210.0 C (50.0 F)
194312.8 C (55.0 F)
194410.0 C (50.0 F)
194511.7 C (53.1 F)
1946n/a
194711.7 C (53.1 F)
19489.4 C (48.9 F)
19497.8 C (46.0 F)
195014.4 C (57.9 F)
195112.2 C (54.0 F)
195213.9 C (57.0 F)
19538.3 C (46.9 F)
195412.8 C (55.0 F)
195511.1 C (52.0 F)
19568.9 C (48.0 F)
195711.7 C (53.1 F)
195813.9 C (57.0 F)
195915.0 C (59.0 F)
19609.4 C (48.9 F)
196114.4 C (57.9 F)
196211.1 C (52.0 F)
196313.3 C (55.9 F)
196415.0 C (59.0 F)
196513.9 C (57.0 F)
196614.4 C (57.9 F)
196712.8 C (55.0 F)
19689.4 C (48.9 F)
196912.2 C (54.0 F)
197012.2 C (54.0 F)
197114.4 C (57.9 F)
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
197715.6 C (60.1 F)
197812.8 C (55.0 F)
197912.2 C (54.0 F)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Cidra 1 E by year The wettest day of the year at Cidra 1 E, 1899 to 1994. The record is 382.3 mm (15.1 in) in 1979, marked on the chart; the median year is 93.2 mm (3.7 in). 010020030040019001920194019601980Record: 382.3 mm (15.1 in) in 1979
The wettest day of the year at Cidra 1 E, 1899 to 1994. The record is 382.3 mm (15.1 in) in 1979, marked on the chart; the median year is 93.2 mm (3.7 in).
Wettest day (Rx1day) at Cidra 1 E by year
YearWettest day (Rx1day)
189968.3 mm (2.7 in)
1900109.7 mm (4.3 in)
190177.5 mm (3.1 in)
1902124.7 mm (4.9 in)
1903114.3 mm (4.5 in)
1904142.2 mm (5.6 in)
1905186.7 mm (7.4 in)
190652.1 mm (2.1 in)
190761.0 mm (2.4 in)
190859.7 mm (2.4 in)
1909158.8 mm (6.3 in)
1910210.8 mm (8.3 in)
1911101.6 mm (4.0 in)
191230.2 mm (1.2 in)
1914155.4 mm (6.1 in)
191561.0 mm (2.4 in)
192369.9 mm (2.8 in)
192463.5 mm (2.5 in)
192535.6 mm (1.4 in)
1926238.0 mm (9.4 in)
192776.2 mm (3.0 in)
1928254.0 mm (10.0 in)
192994.0 mm (3.7 in)
193198.6 mm (3.9 in)
1932127.0 mm (5.0 in)
193368.6 mm (2.7 in)
193474.9 mm (2.9 in)
193575.2 mm (3.0 in)
193695.3 mm (3.8 in)
1937141.0 mm (5.6 in)
1938149.4 mm (5.9 in)
193973.4 mm (2.9 in)
194067.3 mm (2.6 in)
194193.2 mm (3.7 in)
1942109.7 mm (4.3 in)
1943233.7 mm (9.2 in)
1944112.3 mm (4.4 in)
1945151.6 mm (6.0 in)
194640.6 mm (1.6 in)
194747.8 mm (1.9 in)
194895.3 mm (3.8 in)
1949125.5 mm (4.9 in)
195063.2 mm (2.5 in)
195186.4 mm (3.4 in)
195258.9 mm (2.3 in)
195359.7 mm (2.4 in)
1954103.4 mm (4.1 in)
195552.1 mm (2.1 in)
1956143.5 mm (5.6 in)
195761.0 mm (2.4 in)
1958143.3 mm (5.6 in)
1959195.1 mm (7.7 in)
1960257.0 mm (10.1 in)
1961312.2 mm (12.3 in)
196285.1 mm (3.4 in)
196354.9 mm (2.2 in)
196424.1 mm (0.9 in)
1965121.4 mm (4.8 in)
196698.6 mm (3.9 in)
196744.5 mm (1.8 in)
1968116.8 mm (4.6 in)
1969159.0 mm (6.3 in)
1970250.7 mm (9.9 in)
197181.8 mm (3.2 in)
197255.9 mm (2.2 in)
197386.1 mm (3.4 in)
1974142.2 mm (5.6 in)
197580.0 mm (3.1 in)
197658.7 mm (2.3 in)
197761.0 mm (2.4 in)
197871.6 mm (2.8 in)
1979382.3 mm (15.1 in)
198050.8 mm (2.0 in)
1981128.0 mm (5.0 in)
198276.7 mm (3.0 in)
198376.7 mm (3.0 in)
1984170.2 mm (6.7 in)
1985281.2 mm (11.1 in)
1986118.4 mm (4.7 in)
198785.3 mm (3.4 in)
1988112.8 mm (4.4 in)
1989101.6 mm (4.0 in)
199078.7 mm (3.1 in)
1991111.3 mm (4.4 in)
199269.9 mm (2.8 in)
199355.9 mm (2.2 in)
199422.1 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Cidra 1 E by year The wettest five days of the year at Cidra 1 E, 1899 to 1994. The record is 732.5 mm (28.8 in) in 1970, marked on the chart; the median year is 162.9 mm (6.4 in). 020040060080019001920194019601980Record: 732.5 mm (28.8 in) in 1970
The wettest five days of the year at Cidra 1 E, 1899 to 1994. The record is 732.5 mm (28.8 in) in 1970, marked on the chart; the median year is 162.9 mm (6.4 in).
Wettest five days (Rx5day) at Cidra 1 E by year
YearWettest five days (Rx5day)
1899152.4 mm (6.0 in)
1900203.0 mm (8.0 in)
1901149.9 mm (5.9 in)
1902314.9 mm (12.4 in)
1903233.9 mm (9.2 in)
1904275.0 mm (10.8 in)
1905186.7 mm (7.4 in)
1906132.1 mm (5.2 in)
1907127.0 mm (5.0 in)
1908116.6 mm (4.6 in)
1909279.7 mm (11.0 in)
1910273.5 mm (10.8 in)
1911282.8 mm (11.1 in)
191258.7 mm (2.3 in)
1914206.7 mm (8.1 in)
1915194.9 mm (7.7 in)
1923114.4 mm (4.5 in)
1924149.9 mm (5.9 in)
192581.2 mm (3.2 in)
1926275.8 mm (10.9 in)
1927131.1 mm (5.2 in)
1928367.5 mm (14.5 in)
1929149.1 mm (5.9 in)
1931156.3 mm (6.2 in)
1932179.6 mm (7.1 in)
1933222.7 mm (8.8 in)
1934167.6 mm (6.6 in)
1935120.4 mm (4.7 in)
1936232.4 mm (9.1 in)
1937240.1 mm (9.5 in)
1938292.9 mm (11.5 in)
1939115.9 mm (4.6 in)
1940144.8 mm (5.7 in)
1941111.3 mm (4.4 in)
1942162.6 mm (6.4 in)
1943373.2 mm (14.7 in)
1944228.9 mm (9.0 in)
1945240.3 mm (9.5 in)
194644.1 mm (1.7 in)
1947116.7 mm (4.6 in)
1948159.2 mm (6.3 in)
1949162.9 mm (6.4 in)
1950105.7 mm (4.2 in)
1951113.2 mm (4.5 in)
1952161.8 mm (6.4 in)
195383.8 mm (3.3 in)
1954165.9 mm (6.5 in)
1955107.2 mm (4.2 in)
1956208.2 mm (8.2 in)
195786.1 mm (3.4 in)
1958192.5 mm (7.6 in)
1959290.1 mm (11.4 in)
1960309.7 mm (12.2 in)
1961330.2 mm (13.0 in)
1962160.8 mm (6.3 in)
1963105.7 mm (4.2 in)
196425.4 mm (1.0 in)
1965180.4 mm (7.1 in)
1966218.7 mm (8.6 in)
196783.2 mm (3.3 in)
1968181.9 mm (7.2 in)
1969176.7 mm (7.0 in)
1970732.5 mm (28.8 in)
1971146.9 mm (5.8 in)
197286.9 mm (3.4 in)
1973124.8 mm (4.9 in)
1974207.4 mm (8.2 in)
1975145.2 mm (5.7 in)
1976101.3 mm (4.0 in)
1977180.3 mm (7.1 in)
1978167.4 mm (6.6 in)
1979510.3 mm (20.1 in)
198088.6 mm (3.5 in)
1981163.4 mm (6.4 in)
1982119.7 mm (4.7 in)
1983100.6 mm (4.0 in)
1984350.8 mm (13.8 in)
1985392.7 mm (15.5 in)
1986275.1 mm (10.8 in)
1987236.3 mm (9.3 in)
1988192.3 mm (7.6 in)
1989213.2 mm (8.4 in)
1990149.6 mm (5.9 in)
1991120.6 mm (4.7 in)
1992142.3 mm (5.6 in)
1993158.1 mm (6.2 in)
199441.9 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Cidra 1 E by year The longest dry spell of the year at Cidra 1 E, 1899 to 1994. The record is 187 days in 1945, marked on the chart; the median year is 15 days. 05010015020019001920194019601980Record: 187 days in 1945
The longest dry spell of the year at Cidra 1 E, 1899 to 1994. The record is 187 days in 1945, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Cidra 1 E by year
YearLongest dry spell (CDD)
189927 days
19009 days
190113 days
190232 days
190313 days
190420 days
190533 days
190636 days
190718 days
190821 days
190916 days
191027 days
191119 days
191217 days
191419 days
191515 days
192311 days
192418 days
192520 days
192613 days
192736 days
192815 days
192920 days
193113 days
193212 days
193313 days
193413 days
193521 days
193619 days
193722 days
193812 days
193912 days
194017 days
19419 days
194225 days
194310 days
194424 days
1945187 days
19463 days
19479 days
194810 days
194918 days
19507 days
195129 days
195212 days
195312 days
195413 days
195522 days
195615 days
195722 days
195823 days
195925 days
196014 days
196114 days
196218 days
196313 days
19649 days
196510 days
196619 days
196715 days
196811 days
196917 days
197015 days
197114 days
197211 days
197320 days
197410 days
197512 days
197615 days
197713 days
197812 days
197925 days
198020 days
198115 days
198213 days
198312 days
198417 days
198514 days
198614 days
198714 days
198817 days
198919 days
199011 days
199114 days
199213 days
199314 days
199417 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

60 years, 1901 to 1992

A day with at least 96.7 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 432.0 mm (17.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Cidra 1 E: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years96.7 mm (3.8 in)
5 years151.4 mm (6.0 in)
10 years198.6 mm (7.8 in)
25 years274.6 mm (10.8 in)
50 years345.8 mm (13.6 in)
100 years432.0 mm (17.0 in)Longer than the 60 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, 60 years of values from 1901 to 1992.

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: 382.3 mm (15.1 in) in 1979; 312.2 mm (12.3 in) in 1961; 281.2 mm (11.1 in) in 1985.

Download the Data

  • Data for Cidra 1 E standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Cidra 1 E 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 (2025-12-31).