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San Luis Acatlan Weather Records (MXN00012068)

Record envelope, standing records and threshold days for San Luis Acatlan (MXN00012068), Mexico, with 51 years of record.

Key Facts for San Luis Acatlan

  • San Luis Acatlan (MXN00012068) is a weather station in Mexico at 16.80 latitude and -98.70 longitude, 538 m (1,765 ft) above sea level.
  • The station reports from 1962 to 2012, 51 years of record.
  • 1,464 records set at San Luis Acatlan still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Luis Acatlan tied a daily record low maximum temperature of 26.7 C (80.1 F) on 28 November 2012.

About the Station

  • Location: Mexico, 16.80 latitude, -98.70 longitude.
  • Elevation: 538 m (1,765 ft).
  • Period of record: 1962 to 2012, 51 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 Luis Acatlan, with 2026 drawn through them The band shows the record high and record low for each calendar day at San Luis Acatlan. 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 San Luis Acatlan. 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 Luis Acatlan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan37.8 C (100.0 F)10.0 C (50.0 F)n/an/a
Feb38.3 C (100.9 F)5.6 C (42.1 F)n/an/a
Mar39.4 C (102.9 F)10.0 C (50.0 F)n/an/a
Apr38.9 C (102.0 F)10.0 C (50.0 F)n/an/a
May38.9 C (102.0 F)10.6 C (51.1 F)n/an/a
Jun38.9 C (102.0 F)10.0 C (50.0 F)n/an/a
Jul39.4 C (102.9 F)11.7 C (53.1 F)n/an/a
Aug40.0 C (104.0 F)11.7 C (53.1 F)n/an/a
Sep38.9 C (102.0 F)11.7 C (53.1 F)n/an/a
Oct38.9 C (102.0 F)12.8 C (55.0 F)n/an/a
Nov38.9 C (102.0 F)11.7 C (53.1 F)n/an/a
Dec38.9 C (102.0 F)10.6 C (51.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Luis Acatlan by the year they were set 1,464 records at San Luis Acatlan still stand. 1968 holds the most, with 161. 0501001502001962: 611963: 451964: 261965: 351966: 861967: 1251968: 1611969: 1091970: 181971: 541972: 141973: 161975: 641976: 681977: 41978: 61979: 261980: 201981: 211982: 91983: 321984: 131985: 11986: 51987: 161988: 311991: 111992: 81993: 141994: 61995: 91996: 121997: 111998: 11999: 102000: 112004: 32005: 12006: 22007: 52008: 272009: 1232010: 202011: 672012: 57196219671972197819831988199520002008
1,464 records at San Luis Acatlan still stand. 1968 holds the most, with 161.
Standing records at San Luis Acatlan by the year they were set
Year setStanding records
196261
196345
196426
196535
196686
1967125
1968161
1969109
197018
197154
197214
197316
197564
197668
19774
19786
197926
198020
198121
19829
198332
198413
19851
19865
198716
198831
199111
19928
199314
19946
19959
199612
199711
19981
199910
200011
20043
20051
20062
20075
200827
2009123
201020
201167
201257

All-Time Record Progression

1 new records
When San Luis Acatlan set new all-time records 1 all-time records were set at San Luis Acatlan between 8 October 1997 and 8 October 1997. Each dot is a new record. Record daily precipitation8 October 1997: Record daily precipitation 280.4 mm (11.0 in)
1 all-time records were set at San Luis Acatlan between 8 October 1997 and 8 October 1997. Each dot is a new record.
When San Luis Acatlan set new all-time records
DateKindDetail
1997-10-08Record daily precipitationRecord daily precipitation 280.4 mm (11.0 in)

Wettest Day of Each Month

Oct: 280.4 mm (11.0 in)
Record daily precipitation for each month at San Luis Acatlan The wettest day on record for each calendar month at San Luis Acatlan. The most was 280.4 mm (11.0 in) on 8 October 1997. 0100200300 Jan: 119.9 mm (4.7 in), 16 January 2004 Jan Feb: 67.1 mm (2.6 in), 25 February 1983 Feb Mar: 29.2 mm (1.1 in), 15 March 1983 Mar Apr: 40.4 mm (1.6 in), 3 April 1966 Apr May: 103.4 mm (4.1 in), 30 May 1978 May Jun: 209.8 mm (8.3 in), 26 June 1993 Jun Jul: 126.2 mm (5.0 in), 4 July 1988 Jul Aug: 159.8 mm (6.3 in), 13 August 1969 Aug Sep: 180.3 mm (7.1 in), 7 September 1998 Sep Oct: 280.4 mm (11.0 in), 8 October 1997 Oct Nov: 119.9 mm (4.7 in), 3 November 1998 Nov Dec: 80.3 mm (3.2 in), 16 December 1977 Dec
The wettest day on record for each calendar month at San Luis Acatlan. The most was 280.4 mm (11.0 in) on 8 October 1997.
Record daily precipitation for each month at San Luis Acatlan
MonthRecord daily precipitation (mm)Date
Jan119.9 mm (4.7 in)16 January 2004
Feb67.1 mm (2.6 in)25 February 1983
Mar29.2 mm (1.1 in)15 March 1983
Apr40.4 mm (1.6 in)3 April 1966
May103.4 mm (4.1 in)30 May 1978
Jun209.8 mm (8.3 in)26 June 1993
Jul126.2 mm (5.0 in)4 July 1988
Aug159.8 mm (6.3 in)13 August 1969
Sep180.3 mm (7.1 in)7 September 1998
Oct280.4 mm (11.0 in)8 October 1997
Nov119.9 mm (4.7 in)3 November 1998
Dec80.3 mm (3.2 in)16 December 1977

Period of Record Coverage

1962 to 2012
Days with data per year at San Luis Acatlan 49 years of record at San Luis Acatlan, 1962 to 2012. 17 years have data for under 90 percent of days and are left out of rankings: 1962, 1963, 1964, 1969, 1970, 1971, 1973, 1975 and others. 1962: 131 of 365 days1963: 183 of 365 days1964: 253 of 366 days1965: 334 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 327 of 365 days1970: 46 of 365 days1971: 305 of 365 days1972: 366 of 366 days1973: 181 of 365 days1975: 315 of 365 days1976: 271 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 303 of 366 days1985: 169 of 365 days1986: 122 of 365 days1987: 334 of 365 days1988: 336 of 366 days1989: 151 of 365 days1991: 334 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 237 of 365 days2002: 321 of 365 days2003: 334 of 365 days2004: 335 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 62 of 366 days2009: 202 of 365 days2010: 363 of 365 days2011: 365 of 365 days2012: 335 of 366 days1970198020002010
49 years of record at San Luis Acatlan, 1962 to 2012. 17 years have data for under 90 percent of days and are left out of rankings: 1962, 1963, 1964, 1969, 1970, 1971, 1973, 1975 and others.
Days with data per year at San Luis Acatlan
YearDays with dataShare of yearComplete
196213136%No
196318350%No
196425369%No
196533492%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
196932790%No
19704613%No
197130584%No
1972366100%Yes
197318150%No
197531586%No
197627174%No
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
198430383%No
198516946%No
198612233%No
198733492%Yes
198833692%Yes
198915141%No
199133492%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
200123765%No
200232188%No
200333492%Yes
200433592%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
20086217%No
200920255%No
201036399%Yes
2011365100%Yes
201233592%Yes

Latest Records

20
Latest records at San Luis Acatlan
DateStationRecordValueBeat old record byOld record stoodSignificance
28 November 2012San Luis Acatlan, MXdaily low max (Tie)26.7 C (80.1 F)tie29 years3 of 100 (Routine)
26 November 2012San Luis Acatlan, MXdaily low max (Tie)26.7 C (80.1 F)tie29 years3 of 100 (Routine)
24 November 2012San Luis Acatlan, MXdaily high min (Tie)22.8 C (73.0 F)tie26 years3 of 100 (Routine)
22 November 2012San Luis Acatlan, MXdaily high min22.8 C (73.0 F)1.1 C (2.0 F)50 years25 of 100 (Routine)
21 November 2012San Luis Acatlan, MXdaily high max (Tie)35.6 C (96.1 F)tie40 years4 of 100 (Routine)
19 November 2012San Luis Acatlan, MXdaily high max (Tie)35.6 C (96.1 F)tie25 years3 of 100 (Routine)
18 November 2012San Luis Acatlan, MXdaily high max35.6 C (96.1 F)0.6 C (1.1 F)50 years23 of 100 (Routine)
18 November 2012San Luis Acatlan, MXdaily high min (Tie)22.8 C (73.0 F)tie50 years5 of 100 (Routine)
17 November 2012San Luis Acatlan, MXdaily high max (Tie)35.0 C (95.0 F)tie45 years4 of 100 (Routine)
16 November 2012San Luis Acatlan, MXdaily high max35.6 C (96.1 F)0.6 C (1.1 F)45 years21 of 100 (Routine)
16 November 2012San Luis Acatlan, MXdaily high min22.8 C (73.0 F)1.1 C (2.0 F)14 years14 of 100 (Routine)
13 November 2012San Luis Acatlan, MXdaily high min22.8 C (73.0 F)1.1 C (2.0 F)26 years17 of 100 (Routine)
10 November 2012San Luis Acatlan, MXdaily high max (Tie)35.6 C (96.1 F)tie40 years4 of 100 (Routine)
9 November 2012San Luis Acatlan, MXdaily high max35.6 C (96.1 F)0.6 C (1.1 F)40 years20 of 100 (Routine)
9 November 2012San Luis Acatlan, MXdaily high min22.8 C (73.0 F)1.1 C (2.0 F)29 years18 of 100 (Routine)
5 November 2012San Luis Acatlan, MXdaily low max27.8 C (82.0 F)1.1 C (2.0 F)49 years24 of 100 (Routine)
5 November 2012San Luis Acatlan, MXdaily rain9.9 mm (0.39 in)1.0 mm (0.04 in)48 years19 of 100 (Routine)
4 November 2012San Luis Acatlan, MXdaily low max (Tie)30.0 C (86.0 F)tie47 years4 of 100 (Routine)
3 November 2012San Luis Acatlan, MXdaily high min22.8 C (73.0 F)0.6 C (1.1 F)26 years15 of 100 (Routine)
1 November 2012San Luis Acatlan, MXdaily low max (Tie)28.9 C (84.0 F)tie29 years3 of 100 (Routine)

Climate Trend

25 complete years, 1966 to 2011
Annual mean temperature at San Luis Acatlan as warming stripes, 1966 to 2011 One stripe for each of 25 complete years at San Luis Acatlan, 1966 to 2011. Blue stripes are years cooler than the station's own mean of 26.2 C (79.1 F); red stripes are warmer. The coolest year was 1968, at 24.1 C (75.5 F), and the warmest was 1993, at 27.4 C (81.3 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1966: 25.4 C, -0.8 C from the station mean1967: 25.0 C, -1.1 C from the station mean1968: 24.1 C, -2.0 C from the station mean1972: 26.1 C, -0.1 C from the station mean1977: 25.8 C, -0.3 C from the station mean1978: 25.7 C, -0.5 C from the station mean1979: 26.3 C, +0.1 C from the station mean1980: 26.4 C, +0.3 C from the station mean1981: 25.8 C, -0.3 C from the station mean1982: 26.6 C, +0.4 C from the station mean1983: 25.8 C, -0.3 C from the station mean1992: 25.9 C, -0.3 C from the station mean1993: 27.4 C, +1.2 C from the station mean1994: 27.0 C, +0.8 C from the station mean1995: 27.3 C, +1.2 C from the station mean1996: 27.1 C, +0.9 C from the station mean1997: 27.2 C, +1.1 C from the station mean1998: 26.8 C, +0.7 C from the station mean1999: 26.4 C, +0.2 C from the station mean2000: 26.3 C, +0.2 C from the station mean2005: 26.4 C, +0.3 C from the station mean2006: 26.3 C, +0.2 C from the station mean2007: 25.3 C, -0.8 C from the station mean2010: 26.6 C, +0.5 C from the station mean2011: 24.7 C, -1.4 C from the station mean1966197019751980198519901995200020052010
One stripe for each of 25 complete years at San Luis Acatlan, 1966 to 2011. Blue stripes are years cooler than the station's own mean of 26.2 C (79.1 F); red stripes are warmer. The coolest year was 1968, at 24.1 C (75.5 F), and the warmest was 1993, at 27.4 C (81.3 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at San Luis Acatlan as warming stripes, 1966 to 2011
YearAnnual mean temperatureDifference from the station mean
196625.4 C-0.79 C
196725.0 C-1.11 C
196824.1 C-2.01 C
197226.1 C-0.10 C
197725.8 C-0.34 C
197825.7 C-0.47 C
197926.3 C+0.11 C
198026.4 C+0.27 C
198125.8 C-0.32 C
198226.6 C+0.45 C
198325.8 C-0.32 C
199225.9 C-0.28 C
199327.4 C+1.23 C
199427.0 C+0.80 C
199527.3 C+1.17 C
199627.1 C+0.95 C
199727.2 C+1.07 C
199826.8 C+0.68 C
199926.4 C+0.22 C
200026.3 C+0.17 C
200526.4 C+0.26 C
200626.3 C+0.16 C
200725.3 C-0.83 C
201026.6 C+0.49 C
201124.7 C-1.42 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

1962 to 2012
Yearly extremes at San Luis Acatlan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)196236.7 C (98.1 F)49
Coldest night (TNn)5.6 C (42.1 F)197613.9 C (57.0 F)49
Wettest day (Rx1day)280.4 mm (11.0 in)199798.8 mm (3.9 in)50
Wettest five days (Rx5day)680.7 mm (26.8 in)1998199.9 mm (7.9 in)50
Longest dry spell (CDD)179 days2008122 days50

Hottest day (TXx)

Hottest day (TXx) at San Luis Acatlan by year The hottest day of the year at San Luis Acatlan, 1962 to 2012. The record is 40.0 C (104.0 F) in 1962, marked on the chart; the median year is 36.7 C (98.1 F). 3032.53537.54019701980199020002010Record: 40.0 C (104.0 F) in 1962
The hottest day of the year at San Luis Acatlan, 1962 to 2012. The record is 40.0 C (104.0 F) in 1962, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at San Luis Acatlan by year
YearHottest day (TXx)
196240.0 C (104.0 F)
196335.6 C (96.1 F)
196436.7 C (98.1 F)
196537.8 C (100.0 F)
196639.4 C (102.9 F)
196737.8 C (100.0 F)
196838.9 C (102.0 F)
196938.9 C (102.0 F)
197038.9 C (102.0 F)
197139.4 C (102.9 F)
197237.2 C (99.0 F)
197336.7 C (98.1 F)
197537.8 C (100.0 F)
197638.9 C (102.0 F)
197737.8 C (100.0 F)
197836.7 C (98.1 F)
197936.7 C (98.1 F)
198037.8 C (100.0 F)
198138.9 C (102.0 F)
198236.7 C (98.1 F)
198337.8 C (100.0 F)
198435.6 C (96.1 F)
198537.8 C (100.0 F)
198635.0 C (95.0 F)
198737.8 C (100.0 F)
198836.7 C (98.1 F)
198936.7 C (98.1 F)
1990n/a
199136.1 C (97.0 F)
199236.1 C (97.0 F)
199336.7 C (98.1 F)
199438.9 C (102.0 F)
199536.1 C (97.0 F)
199635.6 C (96.1 F)
199736.1 C (97.0 F)
199835.6 C (96.1 F)
199934.4 C (93.9 F)
200035.6 C (96.1 F)
200134.4 C (93.9 F)
200235.6 C (96.1 F)
200335.0 C (95.0 F)
200435.0 C (95.0 F)
200536.7 C (98.1 F)
200636.7 C (98.1 F)
200735.6 C (96.1 F)
200830.0 C (86.0 F)
200933.9 C (93.0 F)
201037.8 C (100.0 F)
201137.8 C (100.0 F)
201237.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at San Luis Acatlan by year The coldest night of the year at San Luis Acatlan, 1962 to 2012. The record is 5.6 C (42.1 F) in 1976, marked on the chart; the median year is 13.9 C (57.0 F). 510152019701980199020002010Record: 5.6 C (42.1 F) in 1976
The coldest night of the year at San Luis Acatlan, 1962 to 2012. The record is 5.6 C (42.1 F) in 1976, marked on the chart; the median year is 13.9 C (57.0 F).
Coldest night (TNn) at San Luis Acatlan by year
YearColdest night (TNn)
196219.4 C (66.9 F)
196315.0 C (59.0 F)
196412.8 C (55.0 F)
196510.0 C (50.0 F)
196611.7 C (53.1 F)
196710.6 C (51.1 F)
196810.0 C (50.0 F)
196911.7 C (53.1 F)
197010.6 C (51.1 F)
197110.6 C (51.1 F)
197210.6 C (51.1 F)
197311.1 C (52.0 F)
197510.6 C (51.1 F)
19765.6 C (42.1 F)
197712.8 C (55.0 F)
197812.8 C (55.0 F)
197912.8 C (55.0 F)
198012.2 C (54.0 F)
198110.6 C (51.1 F)
198213.9 C (57.0 F)
198312.2 C (54.0 F)
198413.9 C (57.0 F)
198513.9 C (57.0 F)
198615.0 C (59.0 F)
198715.6 C (60.1 F)
198813.3 C (55.9 F)
198913.9 C (57.0 F)
1990n/a
199111.7 C (53.1 F)
199210.0 C (50.0 F)
199315.0 C (59.0 F)
199417.2 C (63.0 F)
199518.3 C (64.9 F)
199617.8 C (64.0 F)
199718.9 C (66.0 F)
199817.8 C (64.0 F)
199918.9 C (66.0 F)
200018.9 C (66.0 F)
200116.7 C (62.1 F)
200216.7 C (62.1 F)
200318.9 C (66.0 F)
200417.8 C (64.0 F)
200517.8 C (64.0 F)
200616.7 C (62.1 F)
200715.6 C (60.1 F)
200810.6 C (51.1 F)
200915.6 C (60.1 F)
201015.6 C (60.1 F)
201116.7 C (62.1 F)
201218.9 C (66.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Luis Acatlan by year The wettest day of the year at San Luis Acatlan, 1962 to 2012. The record is 280.4 mm (11.0 in) in 1997, marked on the chart; the median year is 98.8 mm (3.9 in). 010020030019701980199020002010Record: 280.4 mm (11.0 in) in 1997
The wettest day of the year at San Luis Acatlan, 1962 to 2012. The record is 280.4 mm (11.0 in) in 1997, marked on the chart; the median year is 98.8 mm (3.9 in).
Wettest day (Rx1day) at San Luis Acatlan by year
YearWettest day (Rx1day)
1962105.9 mm (4.2 in)
196347.8 mm (1.9 in)
196489.9 mm (3.5 in)
196589.9 mm (3.5 in)
196640.4 mm (1.6 in)
1967115.1 mm (4.5 in)
196867.1 mm (2.6 in)
1969159.8 mm (6.3 in)
197034.8 mm (1.4 in)
197151.8 mm (2.0 in)
197287.4 mm (3.4 in)
1973179.8 mm (7.1 in)
197580.3 mm (3.2 in)
1976109.0 mm (4.3 in)
1977104.4 mm (4.1 in)
1978118.4 mm (4.7 in)
197984.8 mm (3.3 in)
1980102.6 mm (4.0 in)
1981157.0 mm (6.2 in)
198289.2 mm (3.5 in)
1983111.8 mm (4.4 in)
198460.2 mm (2.4 in)
198532.0 mm (1.3 in)
198657.7 mm (2.3 in)
198792.7 mm (3.6 in)
1988126.2 mm (5.0 in)
198975.4 mm (3.0 in)
199049.8 mm (2.0 in)
1991131.8 mm (5.2 in)
1992119.9 mm (4.7 in)
1993209.8 mm (8.3 in)
1994108.5 mm (4.3 in)
199595.0 mm (3.7 in)
1996119.9 mm (4.7 in)
1997280.4 mm (11.0 in)
1998279.9 mm (11.0 in)
1999126.5 mm (5.0 in)
2000126.0 mm (5.0 in)
200180.8 mm (3.2 in)
2002120.7 mm (4.8 in)
2003135.9 mm (5.4 in)
2004119.9 mm (4.7 in)
2005120.4 mm (4.7 in)
200680.8 mm (3.2 in)
200780.3 mm (3.2 in)
200889.9 mm (3.5 in)
2009110.0 mm (4.3 in)
201060.2 mm (2.4 in)
201179.8 mm (3.1 in)
201220.6 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Luis Acatlan by year The wettest five days of the year at San Luis Acatlan, 1962 to 2012. The record is 680.7 mm (26.8 in) in 1998, marked on the chart; the median year is 199.9 mm (7.9 in). 020040060080019701980199020002010Record: 680.7 mm (26.8 in) in 1998
The wettest five days of the year at San Luis Acatlan, 1962 to 2012. The record is 680.7 mm (26.8 in) in 1998, marked on the chart; the median year is 199.9 mm (7.9 in).
Wettest five days (Rx5day) at San Luis Acatlan by year
YearWettest five days (Rx5day)
1962141.5 mm (5.6 in)
196391.5 mm (3.6 in)
1964339.3 mm (13.4 in)
1965200.3 mm (7.9 in)
196681.1 mm (3.2 in)
1967287.7 mm (11.3 in)
1968187.2 mm (7.4 in)
1969314.0 mm (12.4 in)
197090.4 mm (3.6 in)
197194.0 mm (3.7 in)
1972227.2 mm (8.9 in)
1973339.4 mm (13.4 in)
1975151.9 mm (6.0 in)
1976316.5 mm (12.5 in)
1977145.1 mm (5.7 in)
1978259.9 mm (10.2 in)
1979202.7 mm (8.0 in)
1980248.9 mm (9.8 in)
1981327.2 mm (12.9 in)
1982198.6 mm (7.8 in)
1983145.8 mm (5.7 in)
1984146.1 mm (5.8 in)
198532.0 mm (1.3 in)
1986131.5 mm (5.2 in)
1987160.3 mm (6.3 in)
1988242.2 mm (9.5 in)
1989126.2 mm (5.0 in)
199097.2 mm (3.8 in)
1991199.4 mm (7.9 in)
1992324.9 mm (12.8 in)
1993444.1 mm (17.5 in)
1994196.1 mm (7.7 in)
1995250.2 mm (9.9 in)
1996485.2 mm (19.1 in)
1997605.5 mm (23.8 in)
1998680.7 mm (26.8 in)
1999280.5 mm (11.0 in)
2000342.2 mm (13.5 in)
2001181.4 mm (7.1 in)
2002196.6 mm (7.7 in)
2003514.0 mm (20.2 in)
2004183.3 mm (7.2 in)
2005382.1 mm (15.0 in)
2006220.3 mm (8.7 in)
2007124.2 mm (4.9 in)
2008219.2 mm (8.6 in)
2009185.0 mm (7.3 in)
2010161.3 mm (6.4 in)
2011259.9 mm (10.2 in)
201287.4 mm (3.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Luis Acatlan by year The longest dry spell of the year at San Luis Acatlan, 1962 to 2012. The record is 179 days in 2008, marked on the chart; the median year is 122 days. 05010015020019701980199020002010Record: 179 days in 2008
The longest dry spell of the year at San Luis Acatlan, 1962 to 2012. The record is 179 days in 2008, marked on the chart; the median year is 122 days.
Longest dry spell (CDD) at San Luis Acatlan by year
YearLongest dry spell (CDD)
196213 days
196331 days
196460 days
1965121 days
196664 days
1967123 days
1968128 days
196991 days
1970151 days
1971141 days
1972108 days
197394 days
1975161 days
1976121 days
1977122 days
1978106 days
1979135 days
1980122 days
198174 days
198281 days
198368 days
198487 days
1985115 days
198642 days
1987121 days
1988159 days
1989161 days
1990123 days
1991126 days
199299 days
1993126 days
1994148 days
1995118 days
1996130 days
199778 days
1998125 days
1999153 days
2000140 days
200184 days
2002110 days
2003135 days
2004117 days
2005137 days
2006134 days
2007122 days
2008179 days
200983 days
201098 days
2011134 days
2012134 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

40 years, 1965 to 2012

A day with at least 98.6 mm (3.9 in) of rain is expected about once in 2 years. A day with at least 279.3 mm (11.0 in) of rain is expected about once in 100 years.

Rainfall return levels at San Luis Acatlan: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years98.6 mm (3.9 in)
5 years143.0 mm (5.6 in)
10 years173.9 mm (6.8 in)
25 years214.9 mm (8.5 in)
50 years246.6 mm (9.7 in)Longer than the 40 years of record
100 years279.3 mm (11.0 in)Longer than the 40 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, 40 years of values from 1965 to 2012.

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: 280.4 mm (11.0 in) in 1997; 279.9 mm (11.0 in) in 1998; 209.8 mm (8.3 in) in 1993.

Download the Data

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