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San Pedro Nexapa Weather Records (MXN00015103)

Record envelope, standing records and threshold days for San Pedro Nexapa (MXN00015103), Mexico, with 52 years of record.

Key Facts for San Pedro Nexapa

  • San Pedro Nexapa (MXN00015103) is a weather station in Mexico at 19.08 latitude and -98.73 longitude, 2,620 m (8,595 ft) above sea level.
  • The station reports from 1961 to 2012, 52 years of record.
  • 1,464 records set at San Pedro Nexapa still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Pedro Nexapa tied a daily record high maximum temperature of 27.8 C (82.0 F) on 31 December 2012.

About the Station

  • Location: Mexico, 19.08 latitude, -98.73 longitude.
  • Elevation: 2,620 m (8,595 ft).
  • Period of record: 1961 to 2012, 52 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at San Pedro Nexapa, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Pedro Nexapa. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at San Pedro Nexapa. 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 Pedro Nexapa, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.6 C (87.1 F)-5.0 C (23.0 F)n/an/a
Feb32.8 C (91.0 F)-6.1 C (21.0 F)n/an/a
Mar33.9 C (93.0 F)-5.0 C (23.0 F)n/an/a
Apr35.0 C (95.0 F)-3.3 C (26.1 F)n/an/a
May36.7 C (98.1 F)1.1 C (34.0 F)n/an/a
Jun35.6 C (96.1 F)1.7 C (35.1 F)n/an/a
Jul35.6 C (96.1 F)3.3 C (37.9 F)n/an/a
Aug31.7 C (89.1 F)3.9 C (39.0 F)n/an/a
Sep30.6 C (87.1 F)0.0 C (32.0 F)n/an/a
Oct32.8 C (91.0 F)-0.6 C (30.9 F)n/an/a
Nov30.6 C (87.1 F)-2.8 C (27.0 F)n/an/a
Dec31.7 C (89.1 F)-7.8 C (18.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Pedro Nexapa by the year they were set 1,464 records at San Pedro Nexapa still stand. 2011 holds the most, with 155. 0501001502001967: 561968: 491969: 351970: 351971: 431972: 281973: 461974: 591975: 361976: 561977: 351978: 361979: 311980: 431981: 351982: 201983: 361984: 321985: 231986: 291987: 351988: 212001: 232003: 342004: 402005: 512006: 312007: 332008: 212009: 872010: 1032011: 1552012: 67196719711975197919831987200420082012
1,464 records at San Pedro Nexapa still stand. 2011 holds the most, with 155.
Standing records at San Pedro Nexapa by the year they were set
Year setStanding records
196756
196849
196935
197035
197143
197228
197346
197459
197536
197656
197735
197836
197931
198043
198135
198220
198336
198432
198523
198629
198735
198821
200123
200334
200440
200551
200631
200733
200821
200987
2010103
2011155
201267

All-Time Record Progression

1 new records
When San Pedro Nexapa set new all-time records 1 all-time records were set at San Pedro Nexapa between 10 May 2011 and 10 May 2011. Each dot is a new record. Record high maximum temperature10 May 2011: Record high maximum temperature 36.7 C (98.1 F)
1 all-time records were set at San Pedro Nexapa between 10 May 2011 and 10 May 2011. Each dot is a new record.
When San Pedro Nexapa set new all-time records
DateKindDetail
2011-05-10Record high maximum temperatureRecord high maximum temperature 36.7 C (98.1 F)

Wettest Day of Each Month

Jul: 141.5 mm (5.6 in)
Record daily precipitation for each month at San Pedro Nexapa The wettest day on record for each calendar month at San Pedro Nexapa. The most was 141.5 mm (5.6 in) on 16 July 1981. 050100150 Jan: 63.5 mm (2.5 in), 10 January 1967 Jan Feb: 99.8 mm (3.9 in), 4 February 2010 Feb Mar: 51.3 mm (2.0 in), 4 March 1988 Mar Apr: 57.2 mm (2.3 in), 3 April 1966 Apr May: 48.3 mm (1.9 in), 27 May 1984 May Jun: 86.4 mm (3.4 in), 22 June 1966 Jun Jul: 141.5 mm (5.6 in), 16 July 1981 Jul Aug: 61.2 mm (2.4 in), 2 August 1982 Aug Sep: 52.1 mm (2.1 in), 12 September 1968 Sep Oct: 46.0 mm (1.8 in), 28 October 1967 Oct Nov: 25.4 mm (1.0 in), 1 November 1976 Nov Dec: 17.8 mm (0.7 in), 3 December 1968 Dec
The wettest day on record for each calendar month at San Pedro Nexapa. The most was 141.5 mm (5.6 in) on 16 July 1981.
Record daily precipitation for each month at San Pedro Nexapa
MonthRecord daily precipitation (mm)Date
Jan63.5 mm (2.5 in)10 January 1967
Feb99.8 mm (3.9 in)4 February 2010
Mar51.3 mm (2.0 in)4 March 1988
Apr57.2 mm (2.3 in)3 April 1966
May48.3 mm (1.9 in)27 May 1984
Jun86.4 mm (3.4 in)22 June 1966
Jul141.5 mm (5.6 in)16 July 1981
Aug61.2 mm (2.4 in)2 August 1982
Sep52.1 mm (2.1 in)12 September 1968
Oct46.0 mm (1.8 in)28 October 1967
Nov25.4 mm (1.0 in)1 November 1976
Dec17.8 mm (0.7 in)3 December 1968

Period of Record Coverage

1967 to 2012
Days with data per year at San Pedro Nexapa 33 years of record at San Pedro Nexapa, 1967 to 2012. 3 years have data for under 90 percent of days and are left out of rankings: 1967, 2008, 2010. 1967: 297 of 365 days1968: 366 of 366 days1969: 335 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 364 of 365 days1975: 363 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 364 of 365 days1984: 364 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days2001: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 334 of 365 days2007: 365 of 365 days2008: 120 of 366 days2009: 332 of 365 days2010: 303 of 365 days2011: 364 of 365 days2012: 366 of 366 days197019751980198520052010
33 years of record at San Pedro Nexapa, 1967 to 2012. 3 years have data for under 90 percent of days and are left out of rankings: 1967, 2008, 2010.
Days with data per year at San Pedro Nexapa
YearDays with dataShare of yearComplete
196729781%No
1968366100%Yes
196933592%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974364100%Yes
197536399%Yes
1976365100%Yes
1977365100%Yes
1978364100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983364100%Yes
198436499%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
2001365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
200633492%Yes
2007365100%Yes
200812033%No
200933291%Yes
201030383%No
2011364100%Yes
2012366100%Yes

Latest Records

20
Latest records at San Pedro Nexapa
DateStationRecordValueBeat old record byOld record stoodSignificance
31 December 2012San Pedro Nexapa, MXdaily high max (Tie)27.8 C (82.0 F)tie4 years1 of 100 (Routine)
29 December 2012San Pedro Nexapa, MXdaily high max28.9 C (84.0 F)1.1 C (2.0 F)1 year7 of 100 (Routine)
24 December 2012San Pedro Nexapa, MXdaily high max (Tie)28.9 C (84.0 F)tie1 year1 of 100 (Routine)
23 December 2012San Pedro Nexapa, MXdaily high max (Tie)27.8 C (82.0 F)tie1 year1 of 100 (Routine)
17 December 2012San Pedro Nexapa, MXdaily high max30.6 C (87.1 F)1.7 C (3.1 F)4 years10 of 100 (Routine)
16 December 2012San Pedro Nexapa, MXdaily high max30.6 C (87.1 F)2.8 C (5.0 F)4 years14 of 100 (Routine)
15 December 2012San Pedro Nexapa, MXdaily high max (Tie)30.0 C (86.0 F)tie4 years1 of 100 (Routine)
14 December 2012San Pedro Nexapa, MXdaily high max30.0 C (86.0 F)1.1 C (2.0 F)1 year7 of 100 (Routine)
13 December 2012San Pedro Nexapa, MXdaily high max28.9 C (84.0 F)1.1 C (2.0 F)1 year7 of 100 (Routine)
13 December 2012San Pedro Nexapa, MXdaily high min (Tie)6.7 C (44.1 F)tie34 years3 of 100 (Routine)
12 December 2012San Pedro Nexapa, MXdaily high max27.8 C (82.0 F)1.1 C (2.0 F)4 years8 of 100 (Routine)
11 December 2012San Pedro Nexapa, MXdaily high min7.8 C (46.0 F)1.1 C (2.0 F)31 years17 of 100 (Routine)
11 December 2012San Pedro Nexapa, MXdaily high max (Tie)27.8 C (82.0 F)tie4 years1 of 100 (Routine)
10 December 2012San Pedro Nexapa, MXdaily high max30.0 C (86.0 F)2.2 C (4.0 F)4 years12 of 100 (Routine)
9 December 2012San Pedro Nexapa, MXdaily high max (Tie)28.9 C (84.0 F)tie4 years1 of 100 (Routine)
8 December 2012San Pedro Nexapa, MXdaily high max27.8 C (82.0 F)1.1 C (2.0 F)1 year7 of 100 (Routine)
7 December 2012San Pedro Nexapa, MXdaily high max (Tie)27.8 C (82.0 F)tie4 years1 of 100 (Routine)
2 December 2012San Pedro Nexapa, MXdaily high max (Tie)27.8 C (82.0 F)tie4 years1 of 100 (Routine)
30 November 2012San Pedro Nexapa, MXdaily high max (Tie)28.9 C (84.0 F)tie3 years1 of 100 (Routine)
29 November 2012San Pedro Nexapa, MXdaily high max28.9 C (84.0 F)1.1 C (2.0 F)4 years8 of 100 (Routine)

Climate Trend

27 complete years, 1968 to 2012
Annual mean temperature at San Pedro Nexapa as warming stripes, 1968 to 2012 One stripe for each of 27 complete years at San Pedro Nexapa, 1968 to 2012. Blue stripes are years cooler than the station's own mean of 13.9 C (57.1 F); red stripes are warmer. The coolest year was 1968, at 12.8 C (55.0 F), and the warmest was 2011, at 18.3 C (64.9 F). The strongest colour marks a difference of 4.4 C (7.9 F). 1968: 12.8 C, -1.2 C from the station mean1970: 13.5 C, -0.4 C from the station mean1971: 13.4 C, -0.6 C from the station mean1972: 13.4 C, -0.5 C from the station mean1973: 13.7 C, -0.2 C from the station mean1974: 13.2 C, -0.7 C from the station mean1975: 13.1 C, -0.8 C from the station mean1976: 13.0 C, -0.9 C from the station mean1977: 13.4 C, -0.6 C from the station mean1978: 13.4 C, -0.5 C from the station mean1979: 13.6 C, -0.4 C from the station mean1980: 13.8 C, -0.2 C from the station mean1981: 13.3 C, -0.6 C from the station mean1982: 14.0 C, 0.0 C from the station mean1983: 13.4 C, -0.5 C from the station mean1984: 13.3 C, -0.7 C from the station mean1985: 13.1 C, -0.8 C from the station mean1986: 13.3 C, -0.7 C from the station mean1987: 13.8 C, -0.1 C from the station mean1988: 13.8 C, -0.2 C from the station mean2001: 13.5 C, -0.4 C from the station mean2003: 14.5 C, +0.6 C from the station mean2004: 14.2 C, +0.2 C from the station mean2005: 15.0 C, +1.1 C from the station mean2007: 14.6 C, +0.7 C from the station mean2011: 18.3 C, +4.3 C from the station mean2012: 17.8 C, +3.9 C from the station mean196819751980198519901995200020052010
One stripe for each of 27 complete years at San Pedro Nexapa, 1968 to 2012. Blue stripes are years cooler than the station's own mean of 13.9 C (57.1 F); red stripes are warmer. The coolest year was 1968, at 12.8 C (55.0 F), and the warmest was 2011, at 18.3 C (64.9 F). The strongest colour marks a difference of 4.4 C (7.9 F).
Annual mean temperature at San Pedro Nexapa as warming stripes, 1968 to 2012
YearAnnual mean temperatureDifference from the station mean
196812.8 C-1.15 C
197013.5 C-0.40 C
197113.4 C-0.58 C
197213.4 C-0.50 C
197313.7 C-0.22 C
197413.2 C-0.72 C
197513.1 C-0.79 C
197613.0 C-0.93 C
197713.4 C-0.55 C
197813.4 C-0.49 C
197913.6 C-0.35 C
198013.8 C-0.18 C
198113.3 C-0.64 C
198214.0 C+0.03 C
198313.4 C-0.50 C
198413.3 C-0.68 C
198513.1 C-0.79 C
198613.3 C-0.67 C
198713.8 C-0.13 C
198813.8 C-0.15 C
200113.5 C-0.41 C
200314.5 C+0.56 C
200414.2 C+0.23 C
200515.0 C+1.09 C
200714.6 C+0.67 C
201118.3 C+4.35 C
201217.8 C+3.91 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

1961 to 2012
Yearly extremes at San Pedro Nexapa: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.7 C (98.1 F)201127.8 C (82.0 F)33
Coldest night (TNn)-7.8 C (18.0 F)1974-1.7 C (28.9 F)33
Wettest day (Rx1day)141.5 mm (5.6 in)198144.5 mm (1.8 in)39
Wettest five days (Rx5day)167.4 mm (6.6 in)201087.4 mm (3.4 in)39
Longest dry spell (CDD)93 days197552 days39

Hottest day (TXx)

Hottest day (TXx) at San Pedro Nexapa by year The hottest day of the year at San Pedro Nexapa, 1961 to 2012. The record is 36.7 C (98.1 F) in 2011, marked on the chart; the median year is 27.8 C (82.0 F). 2530354019701980199020002010Record: 36.7 C (98.1 F) in 2011
The hottest day of the year at San Pedro Nexapa, 1961 to 2012. The record is 36.7 C (98.1 F) in 2011, marked on the chart; the median year is 27.8 C (82.0 F).
Hottest day (TXx) at San Pedro Nexapa by year
YearHottest day (TXx)
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
196727.2 C (81.0 F)
196828.9 C (84.0 F)
196927.2 C (81.0 F)
197027.2 C (81.0 F)
197126.7 C (80.1 F)
197225.6 C (78.1 F)
197327.2 C (81.0 F)
197428.3 C (82.9 F)
197528.9 C (84.0 F)
197626.7 C (80.1 F)
197727.8 C (82.0 F)
197828.9 C (84.0 F)
197927.8 C (82.0 F)
198027.8 C (82.0 F)
198126.7 C (80.1 F)
198227.8 C (82.0 F)
198328.9 C (84.0 F)
198430.0 C (86.0 F)
198527.8 C (82.0 F)
198630.0 C (86.0 F)
198726.7 C (80.1 F)
198827.8 C (82.0 F)
200127.8 C (82.0 F)
200328.9 C (84.0 F)
200426.7 C (80.1 F)
200528.9 C (84.0 F)
200628.9 C (84.0 F)
200727.8 C (82.0 F)
200830.0 C (86.0 F)
200935.6 C (96.1 F)
201035.6 C (96.1 F)
201136.7 C (98.1 F)
201235.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at San Pedro Nexapa by year The coldest night of the year at San Pedro Nexapa, 1961 to 2012. The record is -7.8 C (18.0 F) in 1974, marked on the chart; the median year is -1.7 C (28.9 F). -10-7.5-5-2.502.519701980199020002010Record: -7.8 C (18.0 F) in 1974
The coldest night of the year at San Pedro Nexapa, 1961 to 2012. The record is -7.8 C (18.0 F) in 1974, marked on the chart; the median year is -1.7 C (28.9 F).
Coldest night (TNn) at San Pedro Nexapa by year
YearColdest night (TNn)
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967-5.0 C (23.0 F)
1968-2.8 C (27.0 F)
1969-2.8 C (27.0 F)
1970-2.2 C (28.0 F)
1971-1.1 C (30.0 F)
1972-6.1 C (21.0 F)
1973-3.3 C (26.1 F)
1974-7.8 C (18.0 F)
19750.0 C (32.0 F)
1976-3.3 C (26.1 F)
1977-2.8 C (27.0 F)
1978-2.8 C (27.0 F)
19790.0 C (32.0 F)
1980-2.2 C (28.0 F)
1981-2.2 C (28.0 F)
19820.0 C (32.0 F)
1983-1.7 C (28.9 F)
1984-1.1 C (30.0 F)
1985-1.1 C (30.0 F)
1986-5.0 C (23.0 F)
1987-3.3 C (26.1 F)
1988-5.0 C (23.0 F)
20010.0 C (32.0 F)
2003-1.1 C (30.0 F)
20040.0 C (32.0 F)
2005-2.2 C (28.0 F)
20060.0 C (32.0 F)
20070.6 C (33.1 F)
20080.0 C (32.0 F)
20090.6 C (33.1 F)
20100.6 C (33.1 F)
20110.6 C (33.1 F)
20121.7 C (35.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Pedro Nexapa by year The wettest day of the year at San Pedro Nexapa, 1961 to 2012. The record is 141.5 mm (5.6 in) in 1981, marked on the chart; the median year is 44.5 mm (1.8 in). 05010015019701980199020002010Record: 141.5 mm (5.6 in) in 1981
The wettest day of the year at San Pedro Nexapa, 1961 to 2012. The record is 141.5 mm (5.6 in) in 1981, marked on the chart; the median year is 44.5 mm (1.8 in).
Wettest day (Rx1day) at San Pedro Nexapa by year
YearWettest day (Rx1day)
196161.0 mm (2.4 in)
196247.8 mm (1.9 in)
196347.0 mm (1.9 in)
196434.3 mm (1.4 in)
196553.3 mm (2.1 in)
196686.4 mm (3.4 in)
196763.5 mm (2.5 in)
196852.1 mm (2.1 in)
196940.6 mm (1.6 in)
197040.9 mm (1.6 in)
197142.9 mm (1.7 in)
197243.4 mm (1.7 in)
197344.7 mm (1.8 in)
197440.6 mm (1.6 in)
197542.2 mm (1.7 in)
197629.5 mm (1.2 in)
197741.4 mm (1.6 in)
197841.9 mm (1.6 in)
197942.7 mm (1.7 in)
198055.9 mm (2.2 in)
1981141.5 mm (5.6 in)
198261.2 mm (2.4 in)
198361.5 mm (2.4 in)
198448.3 mm (1.9 in)
198544.5 mm (1.8 in)
198630.0 mm (1.2 in)
198738.4 mm (1.5 in)
198851.3 mm (2.0 in)
200135.3 mm (1.4 in)
200327.9 mm (1.1 in)
200452.1 mm (2.1 in)
200533.0 mm (1.3 in)
200647.8 mm (1.9 in)
200753.8 mm (2.1 in)
200820.8 mm (0.8 in)
200945.0 mm (1.8 in)
201099.8 mm (3.9 in)
201137.8 mm (1.5 in)
201225.4 mm (1.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Pedro Nexapa by year The wettest five days of the year at San Pedro Nexapa, 1961 to 2012. The record is 167.4 mm (6.6 in) in 2010, marked on the chart; the median year is 87.4 mm (3.4 in). 05010015020019701980199020002010Record: 167.4 mm (6.6 in) in 2010
The wettest five days of the year at San Pedro Nexapa, 1961 to 2012. The record is 167.4 mm (6.6 in) in 2010, marked on the chart; the median year is 87.4 mm (3.4 in).
Wettest five days (Rx5day) at San Pedro Nexapa by year
YearWettest five days (Rx5day)
1961102.4 mm (4.0 in)
1962102.2 mm (4.0 in)
196389.4 mm (3.5 in)
1964108.0 mm (4.3 in)
196578.9 mm (3.1 in)
1966116.3 mm (4.6 in)
196792.0 mm (3.6 in)
1968119.8 mm (4.7 in)
196981.9 mm (3.2 in)
197092.5 mm (3.6 in)
197174.1 mm (2.9 in)
1972111.2 mm (4.4 in)
197374.7 mm (2.9 in)
197480.5 mm (3.2 in)
197589.3 mm (3.5 in)
197666.4 mm (2.6 in)
197781.3 mm (3.2 in)
197871.1 mm (2.8 in)
197975.2 mm (3.0 in)
1980139.3 mm (5.5 in)
1981163.2 mm (6.4 in)
198269.2 mm (2.7 in)
1983113.9 mm (4.5 in)
1984125.0 mm (4.9 in)
198591.6 mm (3.6 in)
198675.9 mm (3.0 in)
198797.1 mm (3.8 in)
198887.4 mm (3.4 in)
200153.6 mm (2.1 in)
200362.0 mm (2.4 in)
200477.3 mm (3.0 in)
200579.4 mm (3.1 in)
200679.3 mm (3.1 in)
2007104.1 mm (4.1 in)
200827.7 mm (1.1 in)
200996.6 mm (3.8 in)
2010167.4 mm (6.6 in)
201160.3 mm (2.4 in)
201253.7 mm (2.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Pedro Nexapa by year The longest dry spell of the year at San Pedro Nexapa, 1961 to 2012. The record is 93 days in 1975, marked on the chart; the median year is 52 days. 025507510019701980199020002010Record: 93 days in 1975
The longest dry spell of the year at San Pedro Nexapa, 1961 to 2012. The record is 93 days in 1975, marked on the chart; the median year is 52 days.
Longest dry spell (CDD) at San Pedro Nexapa by year
YearLongest dry spell (CDD)
196190 days
196288 days
196378 days
196453 days
196553 days
196626 days
196726 days
196829 days
196937 days
197080 days
197152 days
197270 days
197357 days
197448 days
197593 days
197675 days
197734 days
197843 days
197941 days
198039 days
198133 days
198271 days
198371 days
198436 days
198538 days
198652 days
198743 days
198880 days
200161 days
200388 days
200457 days
200556 days
200683 days
200731 days
200872 days
200935 days
201037 days
20111 day
201213 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

35 years, 1961 to 2009

A day with at least 44.3 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 122.3 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at San Pedro Nexapa: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years44.3 mm (1.7 in)
5 years57.6 mm (2.3 in)
10 years68.8 mm (2.7 in)
25 years86.6 mm (3.4 in)
50 years102.9 mm (4.1 in)Longer than the 35 years of record
100 years122.3 mm (4.8 in)Longer than the 35 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, 35 years of values from 1961 to 2009.

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: 141.5 mm (5.6 in) in 1981; 86.4 mm (3.4 in) in 1966; 63.5 mm (2.5 in) in 1967.

Download the Data

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