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Built 2026-10-19 (19 October 2026)

San Juan Weather Records (PE000084721)

Record envelope, standing records and threshold days for San Juan (PE000084721), Peru, with 40 years of record.

Key Facts for San Juan

  • San Juan (PE000084721) is a weather station in Peru at -15.38 latitude and -75.17 longitude, 60 m (197 ft) above sea level.
  • The station reports from 1958 to 1997, 40 years of record.
  • 1,464 records set at San Juan still stand.
  • Records are tracked for tmin: an element needs 30 years of data to be eligible.
  • San Juan set a daily record low minimum temperature of 17.2 C (63.0 F) on 15 March 1997.

About the Station

  • Location: Peru, -15.38 latitude, -75.17 longitude.
  • Elevation: 60 m (197 ft).
  • Period of record: 1958 to 1997, 40 years.
  • Eligible elements: tmin.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at San Juan, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Juan. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 5101520253035 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at San Juan. 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 San Juan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.2 C (86.4 F)12.0 C (53.6 F)n/an/a
Feb30.8 C (87.4 F)15.0 C (59.0 F)n/an/a
Mar30.6 C (87.1 F)10.0 C (50.0 F)n/an/a
Apr29.1 C (84.4 F)10.8 C (51.4 F)n/an/a
May28.0 C (82.4 F)10.0 C (50.0 F)n/an/a
Jun25.5 C (77.9 F)9.0 C (48.2 F)n/an/a
Jul26.4 C (79.5 F)6.1 C (43.0 F)n/an/a
Aug22.8 C (73.0 F)8.9 C (48.0 F)n/an/a
Sep24.0 C (75.2 F)8.0 C (46.4 F)n/an/a
Oct24.0 C (75.2 F)8.9 C (48.0 F)n/an/a
Nov28.0 C (82.4 F)10.0 C (50.0 F)n/an/a
Dec30.0 C (86.0 F)10.5 C (50.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Juan by the year they were set 1,464 records at San Juan still stand. 1983 holds the most, with 302. 01002003004001958: 561959: 411960: 271961: 471962: 651963: 581964: 581965: 241966: 521967: 581968: 501969: 161973: 321974: 211975: 231976: 161977: 331978: 151979: 111980: 241981: 501982: 761983: 3021984: 271985: 141986: 221987: 511988: 231989: 251990: 61991: 121992: 111993: 181994: 111995: 301996: 521997: 71958196219661973197719811985198919931997
1,464 records at San Juan still stand. 1983 holds the most, with 302.
Standing records at San Juan by the year they were set
Year setStanding records
195856
195941
196027
196147
196265
196358
196458
196524
196652
196758
196850
196916
197332
197421
197523
197616
197733
197815
197911
198024
198150
198276
1983302
198427
198514
198622
198751
198823
198925
19906
199112
199211
199318
199411
199530
199652
19977

Wettest Day of Each Month

Jan: 300.0 mm (11.8 in)
Record daily precipitation for each month at San Juan The wettest day on record for each calendar month at San Juan. The most was 300.0 mm (11.8 in) on 5 January 1974. 0100200300 Jan: 300.0 mm (11.8 in), 5 January 1974 Jan Feb: 32.0 mm (1.3 in), 10 February 1996 Feb Mar: 1.0 mm (0.04 in), 4 March 1983 Mar Apr: 2.0 mm (0.08 in), 9 April 1981 Apr May: 51.1 mm (2.0 in), 2 May 1996 May Jun: 74.9 mm (2.9 in), 2 June 1983 Jun Jul: 15.0 mm (0.6 in), 6 July 1977 Jul Aug: 7.9 mm (0.31 in), 25 August 1977 Aug Sep: 2.0 mm (0.08 in), 25 September 1974 Sep Oct: 55.9 mm (2.2 in), 21 October 1995 Oct Nov: 4.8 mm (0.19 in), 25 November 1984 Nov Dec: 20.1 mm (0.8 in), 3 December 1979 Dec
The wettest day on record for each calendar month at San Juan. The most was 300.0 mm (11.8 in) on 5 January 1974.
Record daily precipitation for each month at San Juan
MonthRecord daily precipitation (mm)Date
Jan300.0 mm (11.8 in)5 January 1974
Feb32.0 mm (1.3 in)10 February 1996
Mar1.0 mm (0.04 in)4 March 1983
Apr2.0 mm (0.08 in)9 April 1981
May51.1 mm (2.0 in)2 May 1996
Jun74.9 mm (2.9 in)2 June 1983
Jul15.0 mm (0.6 in)6 July 1977
Aug7.9 mm (0.31 in)25 August 1977
Sep2.0 mm (0.08 in)25 September 1974
Oct55.9 mm (2.2 in)21 October 1995
Nov4.8 mm (0.19 in)25 November 1984
Dec20.1 mm (0.8 in)3 December 1979

Period of Record Coverage

1958 to 1997
Days with data per year at San Juan 37 years of record at San Juan, 1958 to 1997. 37 years have data for under 90 percent of days and are left out of rankings: 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965 and others. 1958: 219 of 365 days1959: 200 of 365 days1960: 218 of 366 days1961: 221 of 365 days1962: 250 of 365 days1963: 297 of 365 days1964: 274 of 366 days1965: 271 of 365 days1966: 223 of 365 days1967: 241 of 365 days1968: 226 of 366 days1969: 123 of 365 days1973: 62 of 365 days1974: 96 of 365 days1975: 156 of 365 days1976: 70 of 366 days1977: 314 of 365 days1978: 301 of 365 days1979: 307 of 365 days1980: 311 of 366 days1981: 265 of 365 days1982: 252 of 365 days1983: 256 of 365 days1984: 241 of 366 days1985: 189 of 365 days1986: 267 of 365 days1987: 285 of 365 days1988: 280 of 366 days1989: 257 of 365 days1990: 142 of 365 days1991: 192 of 365 days1992: 173 of 366 days1993: 219 of 365 days1994: 228 of 365 days1995: 309 of 365 days1996: 311 of 366 days1997: 88 of 365 days1960196519751980198519901995
37 years of record at San Juan, 1958 to 1997. 37 years have data for under 90 percent of days and are left out of rankings: 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965 and others.
Days with data per year at San Juan
YearDays with dataShare of yearComplete
195821960%No
195920055%No
196021860%No
196122161%No
196225068%No
196329781%No
196427475%No
196527174%No
196622361%No
196724166%No
196822662%No
196912334%No
19736217%No
19749626%No
197515643%No
19767019%No
197731486%No
197830182%No
197930784%No
198031185%No
198126573%No
198225269%No
198325670%No
198424166%No
198518952%No
198626773%No
198728578%No
198828077%No
198925770%No
199014239%No
199119253%No
199217347%No
199321960%No
199422862%No
199530985%No
199631185%No
19978824%No

Latest Records

20
Latest records at San Juan
DateStationRecordValueBeat old record byOld record stoodSignificance
15 March 1997San Juan, PEdaily low min17.2 C (63.0 F)0.2 C (0.4 F)3 years5 of 100 (Routine)
11 March 1997San Juan, PEdaily low min17.0 C (62.6 F)0.2 C (0.4 F)34 years15 of 100 (Routine)
4 March 1997San Juan, PEdaily low min17.0 C (62.6 F)0.2 C (0.4 F)35 years15 of 100 (Routine)
17 February 1997San Juan, PEdaily low min16.5 C (61.7 F)0.7 C (1.3 F)37 years19 of 100 (Routine)
16 February 1997San Juan, PEdaily low min (Tie)17.0 C (62.6 F)tie23 years2 of 100 (Routine)
12 February 1997San Juan, PEdaily low min16.5 C (61.7 F)0.5 C (0.9 F)1 year7 of 100 (Routine)
10 February 1997San Juan, PEdaily low min16.8 C (62.2 F)0.4 C (0.7 F)1 year6 of 100 (Routine)
2 November 1996San Juan, PEdaily low min13.8 C (56.8 F)0.1 C (0.2 F)36 years13 of 100 (Routine)
25 October 1996San Juan, PEdaily low min12.4 C (54.3 F)1.3 C (2.3 F)1 year13 of 100 (Routine)
15 September 1996San Juan, PEdaily low min12.1 C (53.8 F)0.7 C (1.3 F)35 years19 of 100 (Routine)
11 September 1996San Juan, PEdaily low min11.7 C (53.1 F)0.3 C (0.5 F)18 years10 of 100 (Routine)
10 September 1996San Juan, PEdaily low min10.9 C (51.6 F)0.2 C (0.4 F)38 years15 of 100 (Routine)
9 September 1996San Juan, PEdaily low min11.8 C (53.2 F)1.0 C (1.8 F)33 years21 of 100 (Routine)
8 September 1996San Juan, PEdaily low min11.9 C (53.4 F)0.1 C (0.2 F)18 years8 of 100 (Routine)
7 September 1996San Juan, PEdaily low min11.6 C (52.9 F)0.6 C (1.1 F)31 years17 of 100 (Routine)
3 September 1996San Juan, PEdaily low min11.2 C (52.2 F)0.5 C (0.9 F)8 years9 of 100 (Routine)
1 August 1996San Juan, PEdaily low min11.8 C (53.2 F)0.3 C (0.5 F)6 years6 of 100 (Routine)
29 July 1996San Juan, PEdaily low min11.4 C (52.5 F)0.6 C (1.1 F)11 years10 of 100 (Routine)
6 July 1996San Juan, PEdaily low min11.5 C (52.7 F)0.7 C (1.3 F)36 years18 of 100 (Routine)
3 July 1996San Juan, PEdaily low min11.8 C (53.2 F)0.4 C (0.7 F)38 years16 of 100 (Routine)

Extremes by Year

1958 to 1997
Yearly extremes at San Juan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)30.8 C (87.4 F)198328.9 C (84.0 F)37
Coldest night (TNn)6.1 C (43.0 F)196111.0 C (51.8 F)37
Wettest day (Rx1day)300.0 mm (11.8 in)19741.0 mm (0.04 in)25
Wettest five days (Rx5day)300.0 mm (11.8 in)19741.5 mm (0.06 in)24
Longest dry spell (CDD)161 days199565 days25

Hottest day (TXx)

Hottest day (TXx) at San Juan by year The hottest day of the year at San Juan, 1958 to 1997. The record is 30.8 C (87.4 F) in 1983, marked on the chart; the median year is 28.9 C (84.0 F). 27282930311960197019801990Record: 30.8 C (87.4 F) in 1983
The hottest day of the year at San Juan, 1958 to 1997. The record is 30.8 C (87.4 F) in 1983, marked on the chart; the median year is 28.9 C (84.0 F).
Hottest day (TXx) at San Juan by year
YearHottest day (TXx)
195828.9 C (84.0 F)
195928.9 C (84.0 F)
196028.9 C (84.0 F)
196128.9 C (84.0 F)
196227.8 C (82.0 F)
196328.9 C (84.0 F)
196427.8 C (82.0 F)
196527.8 C (82.0 F)
196628.9 C (84.0 F)
196730.0 C (86.0 F)
196827.8 C (82.0 F)
196927.8 C (82.0 F)
197329.0 C (84.2 F)
197428.0 C (82.4 F)
197528.0 C (82.4 F)
197629.0 C (84.2 F)
197730.0 C (86.0 F)
197829.0 C (84.2 F)
197929.0 C (84.2 F)
198030.0 C (86.0 F)
198128.0 C (82.4 F)
198230.0 C (86.0 F)
198330.8 C (87.4 F)
198429.0 C (84.2 F)
198529.2 C (84.6 F)
198629.4 C (84.9 F)
198730.2 C (86.4 F)
198830.4 C (86.7 F)
198930.4 C (86.7 F)
199028.5 C (83.3 F)
199129.0 C (84.2 F)
199229.4 C (84.9 F)
199329.0 C (84.2 F)
199428.3 C (82.9 F)
199528.6 C (83.5 F)
199628.4 C (83.1 F)
199728.8 C (83.8 F)

Coldest night (TNn)

Coldest night (TNn) at San Juan by year The coldest night of the year at San Juan, 1958 to 1997. The record is 6.1 C (43.0 F) in 1961, marked on the chart; the median year is 11.0 C (51.8 F). 51015201960197019801990Record: 6.1 C (43.0 F) in 1961
The coldest night of the year at San Juan, 1958 to 1997. The record is 6.1 C (43.0 F) in 1961, marked on the chart; the median year is 11.0 C (51.8 F).
Coldest night (TNn) at San Juan by year
YearColdest night (TNn)
19588.9 C (48.0 F)
195911.1 C (52.0 F)
196011.1 C (52.0 F)
19616.1 C (43.0 F)
19628.9 C (48.0 F)
196311.1 C (52.0 F)
196410.0 C (50.0 F)
196511.1 C (52.0 F)
196610.0 C (50.0 F)
196711.1 C (52.0 F)
196810.0 C (50.0 F)
196911.1 C (52.0 F)
19738.0 C (46.4 F)
197411.0 C (51.8 F)
19759.0 C (48.2 F)
197612.0 C (53.6 F)
197710.0 C (50.0 F)
197810.0 C (50.0 F)
197912.0 C (53.6 F)
198011.0 C (51.8 F)
19819.0 C (48.2 F)
19828.0 C (46.4 F)
198311.8 C (53.2 F)
198410.5 C (50.9 F)
198510.8 C (51.4 F)
198611.5 C (52.7 F)
198712.0 C (53.6 F)
198811.6 C (52.9 F)
198910.8 C (51.4 F)
19909.6 C (49.3 F)
199111.4 C (52.5 F)
199211.8 C (53.2 F)
199311.4 C (52.5 F)
199410.8 C (51.4 F)
199511.0 C (51.8 F)
199610.8 C (51.4 F)
199716.4 C (61.5 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Juan by year The wettest day of the year at San Juan, 1958 to 1997. The record is 300.0 mm (11.8 in) in 1974, marked on the chart; the median year is 1.0 mm (0.04 in). 01002003001960197019801990Record: 300.0 mm (11.8 in) in 1974
The wettest day of the year at San Juan, 1958 to 1997. The record is 300.0 mm (11.8 in) in 1974, marked on the chart; the median year is 1.0 mm (0.04 in).
Wettest day (Rx1day) at San Juan by year
YearWettest day (Rx1day)
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
19733.0 mm (0.12 in)
1974300.0 mm (11.8 in)
19750.0 mm (0.00 in)
19760.5 mm (0.02 in)
197715.0 mm (0.6 in)
19780.0 mm (0.00 in)
197920.1 mm (0.8 in)
19800.0 mm (0.00 in)
19812.0 mm (0.08 in)
19820.5 mm (0.02 in)
198374.9 mm (2.9 in)
19844.8 mm (0.19 in)
19850.0 mm (0.00 in)
19860.5 mm (0.02 in)
19871.0 mm (0.04 in)
19880.3 mm (0.01 in)
19890.0 mm (0.00 in)
19900.0 mm (0.00 in)
19910.5 mm (0.02 in)
19920.0 mm (0.00 in)
199320.1 mm (0.8 in)
199411.9 mm (0.5 in)
199555.9 mm (2.2 in)
199655.9 mm (2.2 in)
199751.1 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Juan by year The wettest five days of the year at San Juan, 1958 to 1997. The record is 300.0 mm (11.8 in) in 1974, marked on the chart; the median year is 1.5 mm (0.06 in). 01002003001960197019801990Record: 300.0 mm (11.8 in) in 1974
The wettest five days of the year at San Juan, 1958 to 1997. The record is 300.0 mm (11.8 in) in 1974, marked on the chart; the median year is 1.5 mm (0.06 in).
Wettest five days (Rx5day) at San Juan by year
YearWettest five days (Rx5day)
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
19737.0 mm (0.28 in)
1974300.0 mm (11.8 in)
1975n/a
19760.3 mm (0.01 in)
197717.0 mm (0.7 in)
19780.0 mm (0.00 in)
197920.1 mm (0.8 in)
19800.0 mm (0.00 in)
19812.0 mm (0.08 in)
19820.5 mm (0.02 in)
198374.9 mm (2.9 in)
19844.8 mm (0.19 in)
19850.0 mm (0.00 in)
19860.8 mm (0.03 in)
19871.0 mm (0.04 in)
19880.6 mm (0.02 in)
19890.0 mm (0.00 in)
19900.0 mm (0.00 in)
19910.5 mm (0.02 in)
19920.0 mm (0.00 in)
199320.1 mm (0.8 in)
199411.9 mm (0.5 in)
199555.9 mm (2.2 in)
199655.9 mm (2.2 in)
199751.1 mm (2.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Juan by year The longest dry spell of the year at San Juan, 1958 to 1997. The record is 161 days in 1995, marked on the chart; the median year is 65 days. 0501001502001960197019801990Record: 161 days in 1995
The longest dry spell of the year at San Juan, 1958 to 1997. The record is 161 days in 1995, marked on the chart; the median year is 65 days.
Longest dry spell (CDD) at San Juan by year
YearLongest dry spell (CDD)
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
197365 days
197429 days
19754 days
197636 days
197776 days
197879 days
197985 days
198095 days
198166 days
198230 days
198325 days
198425 days
19859 days
198641 days
198784 days
198869 days
198974 days
199011 days
199144 days
199244 days
199333 days
1994124 days
1995161 days
1996101 days
199765 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.

Download the Data

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