Daily records
Page built 2026-10-18
Data as of 2025-12-31
Search
Built 2026-10-18 (18 October 2026)

Santa Rita Tlahuapan Weather Records (MXN00021096)

Record envelope, standing records and threshold days for Santa Rita Tlahuapan (MXN00021096), Mexico, with 65 years of record.

Key Facts for Santa Rita Tlahuapan

  • Santa Rita Tlahuapan (MXN00021096) is a weather station in Mexico at 19.33 latitude and -98.57 longitude, 2,609 m (8,559 ft) above sea level.
  • The station reports from 1945 to 2009, 65 years of record.
  • 1,464 records set at Santa Rita Tlahuapan still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Santa Rita Tlahuapan set a daily record high maximum temperature of 25.0 C (77.0 F) on 9 December 2009.

About the Station

  • Location: Mexico, 19.33 latitude, -98.57 longitude.
  • Elevation: 2,609 m (8,559 ft).
  • Period of record: 1945 to 2009, 65 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 Santa Rita Tlahuapan, with 2026 drawn through them The band shows the record high and record low for each calendar day at Santa Rita Tlahuapan. 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 Santa Rita Tlahuapan. 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 Santa Rita Tlahuapan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan28.9 C (84.0 F)-6.7 C (19.9 F)n/an/a
Feb29.4 C (84.9 F)-7.8 C (18.0 F)n/an/a
Mar30.0 C (86.0 F)-6.1 C (21.0 F)n/an/a
Apr31.7 C (89.1 F)-2.2 C (28.0 F)n/an/a
May32.8 C (91.0 F)1.7 C (35.1 F)n/an/a
Jun30.0 C (86.0 F)0.0 C (32.0 F)n/an/a
Jul27.8 C (82.0 F)2.2 C (36.0 F)n/an/a
Aug27.2 C (81.0 F)0.0 C (32.0 F)n/an/a
Sep28.9 C (84.0 F)-1.1 C (30.0 F)n/an/a
Oct31.7 C (89.1 F)0.0 C (32.0 F)n/an/a
Nov26.7 C (80.1 F)-8.3 C (17.1 F)n/an/a
Dec30.0 C (86.0 F)-8.3 C (17.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Santa Rita Tlahuapan by the year they were set 1,464 records at Santa Rita Tlahuapan still stand. 1947 holds the most, with 121. 0501001501945: 121946: 211947: 1211948: 861949: 581950: 81962: 91963: 141964: 281965: 351966: 171967: 161968: 191969: 581970: 301971: 411972: 151973: 281974: 331975: 141976: 311977: 301978: 321979: 351980: 171982: 141983: 281984: 301985: 101986: 81987: 531988: 391989: 481990: 571991: 201992: 261995: 111996: 201997: 351998: 431999: 362000: 112001: 182002: 232003: 132004: 202005: 72006: 162007: 192008: 112009: 40194519621968197419801987199520012007
1,464 records at Santa Rita Tlahuapan still stand. 1947 holds the most, with 121.
Standing records at Santa Rita Tlahuapan by the year they were set
Year setStanding records
194512
194621
1947121
194886
194958
19508
19629
196314
196428
196535
196617
196716
196819
196958
197030
197141
197215
197328
197433
197514
197631
197730
197832
197935
198017
198214
198328
198430
198510
19868
198753
198839
198948
199057
199120
199226
199511
199620
199735
199843
199936
200011
200118
200223
200313
200420
20057
200616
200719
200811
200940

All-Time Record Progression

3 new records
When Santa Rita Tlahuapan set new all-time records 3 all-time records were set at Santa Rita Tlahuapan between 15 May 1991 and 14 May 2004. Each dot is a new record. Record high minimum temperatureRecord high maximum temperatureRecord daily precipitation15 May 1991: Record high minimum temperature 15.0 C (59.0 F)10 May 1998: Record high maximum temperature 32.8 C (91.0 F)14 May 2004: Record daily precipitation 122.4 mm (4.8 in)199520002005
3 all-time records were set at Santa Rita Tlahuapan between 15 May 1991 and 14 May 2004. Each dot is a new record.
When Santa Rita Tlahuapan set new all-time records
DateKindDetail
1991-05-15Record high minimum temperatureRecord high minimum temperature 15.0 C (59.0 F)
1998-05-10Record high maximum temperatureRecord high maximum temperature 32.8 C (91.0 F)
2004-05-14Record daily precipitationRecord daily precipitation 122.4 mm (4.8 in)

Wettest Day of Each Month

May: 122.4 mm (4.8 in)
Record daily precipitation for each month at Santa Rita Tlahuapan The wettest day on record for each calendar month at Santa Rita Tlahuapan. The most was 122.4 mm (4.8 in) on 14 May 2004. 050100150 Jan: 63.8 mm (2.5 in), 11 January 1967 Jan Feb: 23.9 mm (0.9 in), 3 February 2007 Feb Mar: 40.9 mm (1.6 in), 16 March 1978 Mar Apr: 49.3 mm (1.9 in), 7 April 1997 Apr May: 122.4 mm (4.8 in), 14 May 2004 May Jun: 89.9 mm (3.5 in), 12 June 1977 Jun Jul: 52.8 mm (2.1 in), 30 July 1970 Jul Aug: 51.3 mm (2.0 in), 27 August 2005 Aug Sep: 79.8 mm (3.1 in), 7 September 2007 Sep Oct: 61.0 mm (2.4 in), 7 October 1976 Oct Nov: 34.3 mm (1.4 in), 15 November 1965 Nov Dec: 29.0 mm (1.1 in), 18 December 1947 Dec
The wettest day on record for each calendar month at Santa Rita Tlahuapan. The most was 122.4 mm (4.8 in) on 14 May 2004.
Record daily precipitation for each month at Santa Rita Tlahuapan
MonthRecord daily precipitation (mm)Date
Jan63.8 mm (2.5 in)11 January 1967
Feb23.9 mm (0.9 in)3 February 2007
Mar40.9 mm (1.6 in)16 March 1978
Apr49.3 mm (1.9 in)7 April 1997
May122.4 mm (4.8 in)14 May 2004
Jun89.9 mm (3.5 in)12 June 1977
Jul52.8 mm (2.1 in)30 July 1970
Aug51.3 mm (2.0 in)27 August 2005
Sep79.8 mm (3.1 in)7 September 2007
Oct61.0 mm (2.4 in)7 October 1976
Nov34.3 mm (1.4 in)15 November 1965
Dec29.0 mm (1.1 in)18 December 1947

Period of Record Coverage

1945 to 2009
Days with data per year at Santa Rita Tlahuapan 51 years of record at Santa Rita Tlahuapan, 1945 to 2009. 14 years have data for under 90 percent of days and are left out of rankings: 1950, 1962, 1966, 1983, 1985, 1986, 1988, 1990 and others. 1945: 364 of 365 days1946: 365 of 365 days1947: 364 of 365 days1948: 365 of 366 days1949: 334 of 365 days1950: 82 of 365 days1962: 184 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 273 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1982: 365 of 365 days1983: 181 of 365 days1984: 364 of 366 days1985: 210 of 365 days1986: 89 of 365 days1987: 364 of 365 days1988: 274 of 366 days1989: 332 of 365 days1990: 89 of 365 days1991: 360 of 365 days1992: 301 of 366 days1995: 31 of 365 days1996: 273 of 366 days1997: 335 of 365 days1998: 363 of 365 days1999: 299 of 365 days2000: 305 of 366 days2001: 268 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 364 of 365 days2006: 365 of 365 days2007: 360 of 365 days2008: 361 of 366 days2009: 358 of 365 days19501970198019902000
51 years of record at Santa Rita Tlahuapan, 1945 to 2009. 14 years have data for under 90 percent of days and are left out of rankings: 1950, 1962, 1966, 1983, 1985, 1986, 1988, 1990 and others.
Days with data per year at Santa Rita Tlahuapan
YearDays with dataShare of yearComplete
1945364100%Yes
1946365100%Yes
1947364100%Yes
1948365100%Yes
194933492%Yes
19508222%No
196218450%No
1963365100%Yes
1964366100%Yes
1965365100%Yes
196627375%No
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973364100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1982365100%Yes
198318150%No
198436499%Yes
198521058%No
19868924%No
1987364100%Yes
198827475%No
198933291%Yes
19908924%No
199136099%Yes
199230182%No
1995318%No
199627375%No
199733592%Yes
199836399%Yes
199929982%No
200030583%No
200126873%No
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005364100%Yes
2006365100%Yes
200736099%Yes
200836199%Yes
200935898%Yes

Latest Records

20
Latest records at Santa Rita Tlahuapan
DateStationRecordValueBeat old record byOld record stoodSignificance
9 December 2009Santa Rita Tlahuapan, MXdaily high max25.0 C (77.0 F)1.1 C (2.0 F)63 years28 of 100 (Routine)
8 December 2009Santa Rita Tlahuapan, MXdaily high max (Tie)23.9 C (75.0 F)tie62 years6 of 100 (Routine)
1 November 2009Santa Rita Tlahuapan, MXdaily rain10.9 mm (0.4 in)1.0 mm (0.04 in)46 years20 of 100 (Routine)
30 October 2009Santa Rita Tlahuapan, MXdaily rain27.9 mm (1.1 in)13.7 mm (0.5 in)31 years30 of 100 (Routine)
29 October 2009Santa Rita Tlahuapan, MXdaily high min10.0 C (50.0 F)1.1 C (2.0 F)62 years29 of 100 (Routine)
28 October 2009Santa Rita Tlahuapan, MXdaily high min10.6 C (51.1 F)0.6 C (1.1 F)11 years11 of 100 (Routine)
18 October 2009Santa Rita Tlahuapan, MXdaily low max15.0 C (59.0 F)1.7 C (3.1 F)7 years14 of 100 (Routine)
9 October 2009Santa Rita Tlahuapan, MXdaily high max25.6 C (78.1 F)0.6 C (1.1 F)62 years26 of 100 (Routine)
6 October 2009Santa Rita Tlahuapan, MXdaily high max (Tie)25.0 C (77.0 F)tie60 years6 of 100 (Routine)
5 October 2009Santa Rita Tlahuapan, MXdaily high max25.6 C (78.1 F)0.6 C (1.1 F)2 years8 of 100 (Routine)
4 October 2009Santa Rita Tlahuapan, MXdaily high max26.7 C (80.1 F)1.7 C (3.1 F)34 years22 of 100 (Routine)
2 October 2009Santa Rita Tlahuapan, MXdaily high max25.6 C (78.1 F)0.6 C (1.1 F)20 years14 of 100 (Routine)
1 October 2009Santa Rita Tlahuapan, MXdaily high max25.6 C (78.1 F)0.6 C (1.1 F)60 years26 of 100 (Routine)
27 September 2009Santa Rita Tlahuapan, MXdaily high min (Tie)11.7 C (53.1 F)tie11 years2 of 100 (Routine)
24 September 2009Santa Rita Tlahuapan, MXdaily high min (Tie)10.6 C (51.1 F)tie44 years4 of 100 (Routine)
21 September 2009Santa Rita Tlahuapan, MXdaily high max (Tie)25.0 C (77.0 F)tie2 years1 of 100 (Routine)
16 September 2009Santa Rita Tlahuapan, MXdaily high min (Tie)10.6 C (51.1 F)tie40 years4 of 100 (Routine)
15 September 2009Santa Rita Tlahuapan, MXdaily high min (Tie)10.6 C (51.1 F)tie38 years4 of 100 (Routine)
14 September 2009Santa Rita Tlahuapan, MXdaily rain54.9 mm (2.2 in)35.1 mm (1.4 in)11 years44 of 100 (Notable)
9 September 2009Santa Rita Tlahuapan, MXdaily high min (Tie)10.6 C (51.1 F)tie62 years6 of 100 (Routine)

Climate Trend

34 complete years, 1945 to 2009
Annual mean temperature at Santa Rita Tlahuapan as warming stripes, 1945 to 2009 One stripe for each of 34 complete years at Santa Rita Tlahuapan, 1945 to 2009. Blue stripes are years cooler than the station's own mean of 14.0 C (57.2 F); red stripes are warmer. The coolest year was 1976, at 13.1 C (55.5 F), and the warmest was 1948, at 15.3 C (59.6 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1945: 13.9 C, -0.1 C from the station mean1946: 13.9 C, 0.0 C from the station mean1947: 14.1 C, +0.2 C from the station mean1948: 15.3 C, +1.4 C from the station mean1963: 13.9 C, -0.1 C from the station mean1964: 13.7 C, -0.3 C from the station mean1965: 13.4 C, -0.6 C from the station mean1967: 13.4 C, -0.5 C from the station mean1968: 13.6 C, -0.4 C from the station mean1969: 14.5 C, +0.5 C from the station mean1970: 13.8 C, -0.2 C from the station mean1971: 13.4 C, -0.6 C from the station mean1972: 13.7 C, -0.3 C from the station mean1973: 13.7 C, -0.2 C from the station mean1974: 13.3 C, -0.7 C from the station mean1975: 13.7 C, -0.3 C from the station mean1976: 13.1 C, -0.9 C from the station mean1977: 13.7 C, -0.3 C from the station mean1978: 13.9 C, 0.0 C from the station mean1979: 13.6 C, -0.4 C from the station mean1980: 13.7 C, -0.2 C from the station mean1982: 14.2 C, +0.2 C from the station mean1984: 14.1 C, +0.1 C from the station mean1987: 14.3 C, +0.3 C from the station mean1991: 14.2 C, +0.2 C from the station mean1998: 14.6 C, +0.6 C from the station mean2002: 14.1 C, +0.1 C from the station mean2003: 14.5 C, +0.6 C from the station mean2004: 13.9 C, -0.1 C from the station mean2005: 14.0 C, 0.0 C from the station mean2006: 14.3 C, +0.3 C from the station mean2007: 14.7 C, +0.7 C from the station mean2008: 14.3 C, +0.4 C from the station mean2009: 15.0 C, +1.0 C from the station mean1945195019601970198019902000
One stripe for each of 34 complete years at Santa Rita Tlahuapan, 1945 to 2009. Blue stripes are years cooler than the station's own mean of 14.0 C (57.2 F); red stripes are warmer. The coolest year was 1976, at 13.1 C (55.5 F), and the warmest was 1948, at 15.3 C (59.6 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Santa Rita Tlahuapan as warming stripes, 1945 to 2009
YearAnnual mean temperatureDifference from the station mean
194513.9 C-0.13 C
194613.9 C-0.04 C
194714.1 C+0.15 C
194815.3 C+1.36 C
196313.9 C-0.11 C
196413.7 C-0.27 C
196513.4 C-0.61 C
196713.4 C-0.54 C
196813.6 C-0.41 C
196914.5 C+0.50 C
197013.8 C-0.23 C
197113.4 C-0.61 C
197213.7 C-0.26 C
197313.7 C-0.25 C
197413.3 C-0.70 C
197513.7 C-0.31 C
197613.1 C-0.90 C
197713.7 C-0.32 C
197813.9 C-0.04 C
197913.6 C-0.36 C
198013.7 C-0.25 C
198214.2 C+0.17 C
198414.1 C+0.07 C
198714.3 C+0.30 C
199114.2 C+0.23 C
199814.6 C+0.63 C
200214.1 C+0.10 C
200314.5 C+0.55 C
200413.9 C-0.08 C
200514.0 C-0.01 C
200614.3 C+0.30 C
200714.7 C+0.70 C
200814.3 C+0.36 C
200915.0 C+0.99 C

The fitted trend in annual mean temperature here over 1945 to 2009 is 0.08 C (-0.01 to 0.17) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.15 F (-0.01 to 0.31) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Santa Rita Tlahuapan
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.08 C (-0.01 to 0.17) per decade0.15 F (-0.01 to 0.31) per decade1945 to 200934Not clearly different from zero
Mean daily maximum0.08 C (-0.04 to 0.20) per decade0.1 F (-0.1 to 0.4) per decade1945 to 200934Not clearly different from zero
Mean daily minimum0.09 C (-0.03 to 0.20) per decade0.2 F (-0.1 to 0.4) per decade1945 to 200934Not 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

1945 to 2009
Yearly extremes at Santa Rita Tlahuapan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)32.8 C (91.0 F)199828.9 C (84.0 F)51
Coldest night (TNn)-8.3 C (17.1 F)1947-1.1 C (30.0 F)51
Wettest day (Rx1day)122.4 mm (4.8 in)200443.4 mm (1.7 in)51
Wettest five days (Rx5day)188.2 mm (7.4 in)197783.9 mm (3.3 in)51
Longest dry spell (CDD)110 days199657 days51

Hottest day (TXx)

Hottest day (TXx) at Santa Rita Tlahuapan by year The hottest day of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 32.8 C (91.0 F) in 1998, marked on the chart; the median year is 28.9 C (84.0 F). 22.52527.53032.535196019802000Record: 32.8 C (91.0 F) in 1998
The hottest day of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 32.8 C (91.0 F) in 1998, marked on the chart; the median year is 28.9 C (84.0 F).
Hottest day (TXx) at Santa Rita Tlahuapan by year
YearHottest day (TXx)
194528.9 C (84.0 F)
194627.8 C (82.0 F)
194730.6 C (87.1 F)
194830.0 C (86.0 F)
194928.9 C (84.0 F)
195028.9 C (84.0 F)
196225.0 C (77.0 F)
196330.0 C (86.0 F)
196428.9 C (84.0 F)
196527.8 C (82.0 F)
196628.9 C (84.0 F)
196728.9 C (84.0 F)
196828.3 C (82.9 F)
196930.0 C (86.0 F)
197031.7 C (89.1 F)
197128.3 C (82.9 F)
197228.3 C (82.9 F)
197330.0 C (86.0 F)
197429.4 C (84.9 F)
197530.0 C (86.0 F)
197628.3 C (82.9 F)
197730.0 C (86.0 F)
197830.0 C (86.0 F)
197928.3 C (82.9 F)
198028.3 C (82.9 F)
198228.3 C (82.9 F)
198331.1 C (88.0 F)
198430.6 C (87.1 F)
198528.3 C (82.9 F)
198627.8 C (82.0 F)
198728.3 C (82.9 F)
198829.4 C (84.9 F)
198929.4 C (84.9 F)
199022.8 C (73.0 F)
199130.0 C (86.0 F)
199228.9 C (84.0 F)
199525.0 C (77.0 F)
199627.8 C (82.0 F)
199727.8 C (82.0 F)
199832.8 C (91.0 F)
199926.7 C (80.1 F)
200027.8 C (82.0 F)
200130.0 C (86.0 F)
200230.0 C (86.0 F)
200330.0 C (86.0 F)
200427.8 C (82.0 F)
200528.9 C (84.0 F)
200631.7 C (89.1 F)
200728.9 C (84.0 F)
200830.0 C (86.0 F)
200931.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at Santa Rita Tlahuapan by year The coldest night of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is -8.3 C (17.1 F) in 1947, marked on the chart; the median year is -1.1 C (30.0 F). -10-505196019802000Record: -8.3 C (17.1 F) in 1947
The coldest night of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is -8.3 C (17.1 F) in 1947, marked on the chart; the median year is -1.1 C (30.0 F).
Coldest night (TNn) at Santa Rita Tlahuapan by year
YearColdest night (TNn)
19450.6 C (33.1 F)
1946-7.2 C (19.0 F)
1947-8.3 C (17.1 F)
19480.0 C (32.0 F)
19492.2 C (36.0 F)
19501.7 C (35.1 F)
1962-2.2 C (28.0 F)
1963-3.3 C (26.1 F)
1964-1.1 C (30.0 F)
1965-2.2 C (28.0 F)
1966-2.2 C (28.0 F)
1967-2.2 C (28.0 F)
1968-5.0 C (23.0 F)
19690.0 C (32.0 F)
1970-1.1 C (30.0 F)
1971-2.2 C (28.0 F)
19720.6 C (33.1 F)
1973-2.8 C (27.0 F)
1974-1.7 C (28.9 F)
1975-2.2 C (28.0 F)
1976-5.0 C (23.0 F)
1977-2.8 C (27.0 F)
1978-1.1 C (30.0 F)
1979-1.1 C (30.0 F)
1980-3.3 C (26.1 F)
1982-1.7 C (28.9 F)
1983-4.4 C (24.1 F)
1984-3.3 C (26.1 F)
1985-1.1 C (30.0 F)
1986-2.2 C (28.0 F)
1987-2.2 C (28.0 F)
1988-2.2 C (28.0 F)
19890.0 C (32.0 F)
19902.8 C (37.0 F)
19910.6 C (33.1 F)
19920.0 C (32.0 F)
19953.9 C (39.0 F)
19960.6 C (33.1 F)
1997-2.2 C (28.0 F)
1998-2.2 C (28.0 F)
19990.0 C (32.0 F)
20000.6 C (33.1 F)
20010.0 C (32.0 F)
2002-1.1 C (30.0 F)
20030.6 C (33.1 F)
20040.0 C (32.0 F)
20050.0 C (32.0 F)
20060.0 C (32.0 F)
20070.6 C (33.1 F)
2008-2.2 C (28.0 F)
2009-1.1 C (30.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Santa Rita Tlahuapan by year The wettest day of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 122.4 mm (4.8 in) in 2004, marked on the chart; the median year is 43.4 mm (1.7 in). 050100150196019802000Record: 122.4 mm (4.8 in) in 2004
The wettest day of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 122.4 mm (4.8 in) in 2004, marked on the chart; the median year is 43.4 mm (1.7 in).
Wettest day (Rx1day) at Santa Rita Tlahuapan by year
YearWettest day (Rx1day)
194537.8 mm (1.5 in)
194631.8 mm (1.3 in)
194775.9 mm (3.0 in)
194841.9 mm (1.6 in)
194930.0 mm (1.2 in)
195015.7 mm (0.6 in)
196229.5 mm (1.2 in)
196334.8 mm (1.4 in)
196455.9 mm (2.2 in)
196543.4 mm (1.7 in)
196667.8 mm (2.7 in)
196771.9 mm (2.8 in)
196831.0 mm (1.2 in)
196954.4 mm (2.1 in)
197052.8 mm (2.1 in)
197142.9 mm (1.7 in)
197256.9 mm (2.2 in)
197334.3 mm (1.4 in)
197448.8 mm (1.9 in)
197546.2 mm (1.8 in)
197661.0 mm (2.4 in)
197789.9 mm (3.5 in)
197845.2 mm (1.8 in)
197940.9 mm (1.6 in)
198045.5 mm (1.8 in)
198239.6 mm (1.6 in)
198324.1 mm (0.9 in)
198427.7 mm (1.1 in)
198531.0 mm (1.2 in)
198631.5 mm (1.2 in)
198742.4 mm (1.7 in)
198843.2 mm (1.7 in)
198942.9 mm (1.7 in)
19904.8 mm (0.19 in)
199119.8 mm (0.8 in)
199247.0 mm (1.9 in)
199522.4 mm (0.9 in)
199641.9 mm (1.6 in)
199749.3 mm (1.9 in)
199855.9 mm (2.2 in)
199943.9 mm (1.7 in)
200065.8 mm (2.6 in)
200151.8 mm (2.0 in)
200247.0 mm (1.9 in)
200356.9 mm (2.2 in)
2004122.4 mm (4.8 in)
200551.3 mm (2.0 in)
200635.8 mm (1.4 in)
200779.8 mm (3.1 in)
200838.4 mm (1.5 in)
200954.9 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Santa Rita Tlahuapan by year The wettest five days of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 188.2 mm (7.4 in) in 1977, marked on the chart; the median year is 83.9 mm (3.3 in). 050100150200196019802000Record: 188.2 mm (7.4 in) in 1977
The wettest five days of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 188.2 mm (7.4 in) in 1977, marked on the chart; the median year is 83.9 mm (3.3 in).
Wettest five days (Rx5day) at Santa Rita Tlahuapan by year
YearWettest five days (Rx5day)
194583.9 mm (3.3 in)
194676.3 mm (3.0 in)
1947160.1 mm (6.3 in)
194895.2 mm (3.7 in)
194969.3 mm (2.7 in)
195023.6 mm (0.9 in)
196252.7 mm (2.1 in)
196363.8 mm (2.5 in)
1964160.6 mm (6.3 in)
196574.4 mm (2.9 in)
196689.4 mm (3.5 in)
196796.0 mm (3.8 in)
196870.6 mm (2.8 in)
196996.1 mm (3.8 in)
197077.6 mm (3.1 in)
197196.8 mm (3.8 in)
197286.7 mm (3.4 in)
197360.4 mm (2.4 in)
1974127.0 mm (5.0 in)
1975109.2 mm (4.3 in)
1976115.2 mm (4.5 in)
1977188.2 mm (7.4 in)
1978111.3 mm (4.4 in)
197972.9 mm (2.9 in)
198062.8 mm (2.5 in)
198259.4 mm (2.3 in)
198339.7 mm (1.6 in)
198451.4 mm (2.0 in)
198556.0 mm (2.2 in)
198635.9 mm (1.4 in)
198762.0 mm (2.4 in)
198869.6 mm (2.7 in)
198959.7 mm (2.4 in)
19909.4 mm (0.37 in)
199176.3 mm (3.0 in)
199289.2 mm (3.5 in)
199540.2 mm (1.6 in)
199673.2 mm (2.9 in)
199795.6 mm (3.8 in)
1998112.6 mm (4.4 in)
1999107.5 mm (4.2 in)
200081.6 mm (3.2 in)
2001114.3 mm (4.5 in)
200270.7 mm (2.8 in)
200388.7 mm (3.5 in)
2004142.2 mm (5.6 in)
200598.8 mm (3.9 in)
200697.0 mm (3.8 in)
2007141.5 mm (5.6 in)
200894.3 mm (3.7 in)
2009147.3 mm (5.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Santa Rita Tlahuapan by year The longest dry spell of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 110 days in 1996, marked on the chart; the median year is 57 days. 0255075100125196019802000Record: 110 days in 1996
The longest dry spell of the year at Santa Rita Tlahuapan, 1945 to 2009. The record is 110 days in 1996, marked on the chart; the median year is 57 days.
Longest dry spell (CDD) at Santa Rita Tlahuapan by year
YearLongest dry spell (CDD)
194546 days
194650 days
194740 days
194864 days
194962 days
195059 days
196220 days
196365 days
196479 days
196534 days
196652 days
196782 days
196842 days
196971 days
197056 days
197180 days
197261 days
197357 days
197434 days
197556 days
197657 days
197763 days
197843 days
197941 days
198068 days
198256 days
198357 days
198466 days
198527 days
198646 days
198762 days
198874 days
198964 days
199027 days
199162 days
199224 days
199524 days
1996110 days
199737 days
199894 days
199941 days
200048 days
200146 days
200268 days
200398 days
200458 days
200554 days
200657 days
200770 days
200888 days
200934 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

37 years, 1945 to 2009

A day with at least 45.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 119.1 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Santa Rita Tlahuapan: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years45.3 mm (1.8 in)
5 years61.0 mm (2.4 in)
10 years72.9 mm (2.9 in)
25 years89.7 mm (3.5 in)
50 years103.7 mm (4.1 in)Longer than the 37 years of record
100 years119.1 mm (4.7 in)Longer than the 37 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, 37 years of values from 1945 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: 122.4 mm (4.8 in) in 2004; 89.9 mm (3.5 in) in 1977; 79.8 mm (3.1 in) in 2007.

Download the Data

  • Data for Santa Rita Tlahuapan standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Santa Rita Tlahuapan 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).