Daily records
Page built 2026-10-17
Data as of 2025-12-31
Search
Built 2026-10-17 (17 October 2026)

Colonia Santa Ursula Coapa Weather Records (MXN00009014)

Record envelope, standing records and threshold days for Colonia Santa Ursula Coapa (MXN00009014), Mexico, with 42 years of record.

Key Facts for Colonia Santa Ursula Coapa

  • Colonia Santa Ursula Coapa (MXN00009014) is a weather station in Mexico at 19.30 latitude and -99.13 longitude, 2,256 m (7,401 ft) above sea level.
  • The station reports from 1971 to 2012, 42 years of record.
  • 1,464 records set at Colonia Santa Ursula Coapa still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Colonia Santa Ursula Coapa tied a daily record high minimum temperature of 12.8 C (55.0 F) on 29 October 2012.

About the Station

  • Location: Mexico, 19.30 latitude, -99.13 longitude.
  • Elevation: 2,256 m (7,401 ft).
  • Period of record: 1971 to 2012, 42 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 Colonia Santa Ursula Coapa, with 2026 drawn through them The band shows the record high and record low for each calendar day at Colonia Santa Ursula Coapa. 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 Colonia Santa Ursula Coapa. 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 Colonia Santa Ursula Coapa, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.0 C (86.0 F)0.0 C (32.0 F)n/an/a
Feb32.8 C (91.0 F)-3.3 C (26.1 F)n/an/a
Mar35.0 C (95.0 F)0.0 C (32.0 F)n/an/a
Apr35.6 C (96.1 F)2.2 C (36.0 F)n/an/a
May35.0 C (95.0 F)4.4 C (39.9 F)n/an/a
Jun34.4 C (93.9 F)6.1 C (43.0 F)n/an/a
Jul31.7 C (89.1 F)2.2 C (36.0 F)n/an/a
Aug30.0 C (86.0 F)7.8 C (46.0 F)n/an/a
Sep30.0 C (86.0 F)3.9 C (39.0 F)n/an/a
Oct31.7 C (89.1 F)1.7 C (35.1 F)n/an/a
Nov31.7 C (89.1 F)0.0 C (32.0 F)n/an/a
Dec28.9 C (84.0 F)-1.1 C (30.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Colonia Santa Ursula Coapa by the year they were set 1,464 records at Colonia Santa Ursula Coapa still stand. 1998 holds the most, with 93. 02550751001971: 341972: 381973: 451974: 681975: 271976: 431977: 611978: 261979: 261980: 581981: 431982: 831983: 591984: 311985: 361986: 701987: 481988: 411989: 141990: 181991: 121992: 391993: 221994: 71995: 311996: 281997: 621998: 931999: 192000: 92001: 272002: 272003: 562004: 242005: 412006: 232007: 252008: 222011: 232012: 51971197519791983198719911995199920032007
1,464 records at Colonia Santa Ursula Coapa still stand. 1998 holds the most, with 93.
Standing records at Colonia Santa Ursula Coapa by the year they were set
Year setStanding records
197134
197238
197345
197468
197527
197643
197761
197826
197926
198058
198143
198283
198359
198431
198536
198670
198748
198841
198914
199018
199112
199239
199322
19947
199531
199628
199762
199893
199919
20009
200127
200227
200356
200424
200541
200623
200725
200822
201123
20125

Wettest Day of Each Month

Jul: 93.0 mm (3.7 in)
Record daily precipitation for each month at Colonia Santa Ursula Coapa The wettest day on record for each calendar month at Colonia Santa Ursula Coapa. The most was 93.0 mm (3.7 in) on 7 July 1990. 0255075100 Jan: 22.9 mm (0.9 in), 17 January 1981 Jan Feb: 12.2 mm (0.5 in), 4 February 2007 Feb Mar: 34.8 mm (1.4 in), 16 March 1978 Mar Apr: 36.8 mm (1.4 in), 21 April 2001 Apr May: 47.8 mm (1.9 in), 18 May 2007 May Jun: 72.9 mm (2.9 in), 27 June 2002 Jun Jul: 93.0 mm (3.7 in), 7 July 1990 Jul Aug: 73.9 mm (2.9 in), 9 August 1978 Aug Sep: 79.2 mm (3.1 in), 26 September 1998 Sep Oct: 81.8 mm (3.2 in), 28 October 1977 Oct Nov: 31.8 mm (1.3 in), 4 November 1973 Nov Dec: 33.0 mm (1.3 in), 30 December 1995 Dec
The wettest day on record for each calendar month at Colonia Santa Ursula Coapa. The most was 93.0 mm (3.7 in) on 7 July 1990.
Record daily precipitation for each month at Colonia Santa Ursula Coapa
MonthRecord daily precipitation (mm)Date
Jan22.9 mm (0.9 in)17 January 1981
Feb12.2 mm (0.5 in)4 February 2007
Mar34.8 mm (1.4 in)16 March 1978
Apr36.8 mm (1.4 in)21 April 2001
May47.8 mm (1.9 in)18 May 2007
Jun72.9 mm (2.9 in)27 June 2002
Jul93.0 mm (3.7 in)7 July 1990
Aug73.9 mm (2.9 in)9 August 1978
Sep79.2 mm (3.1 in)26 September 1998
Oct81.8 mm (3.2 in)28 October 1977
Nov31.8 mm (1.3 in)4 November 1973
Dec33.0 mm (1.3 in)30 December 1995

Period of Record Coverage

1971 to 2012
Days with data per year at Colonia Santa Ursula Coapa 40 years of record at Colonia Santa Ursula Coapa, 1971 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1993, 1994, 2004, 2005, 2006. 1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 337 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 363 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 364 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 273 of 365 days1994: 122 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 364 of 365 days1999: 361 of 365 days2000: 366 of 366 days2001: 363 of 365 days2002: 364 of 365 days2003: 358 of 365 days2004: 212 of 366 days2005: 304 of 365 days2006: 208 of 365 days2007: 364 of 365 days2008: 365 of 366 days2011: 365 of 365 days2012: 365 of 366 days1975198019851990199520002005
40 years of record at Colonia Santa Ursula Coapa, 1971 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1993, 1994, 2004, 2005, 2006.
Days with data per year at Colonia Santa Ursula Coapa
YearDays with dataShare of yearComplete
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
197533792%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
198136399%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987364100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
199327375%No
199412233%No
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998364100%Yes
199936199%Yes
2000366100%Yes
200136399%Yes
2002364100%Yes
200335898%Yes
200421258%No
200530483%No
200620857%No
2007364100%Yes
2008365100%Yes
2011365100%Yes
2012365100%Yes

Latest Records

20
Latest records at Colonia Santa Ursula Coapa
DateStationRecordValueBeat old record byOld record stoodSignificance
29 October 2012Colonia Santa Ursula Coapa, MXdaily high min (Tie)12.8 C (55.0 F)tie15 years2 of 100 (Routine)
26 October 2012Colonia Santa Ursula Coapa, MXdaily high min (Tie)12.8 C (55.0 F)tie36 years3 of 100 (Routine)
12 August 2012Colonia Santa Ursula Coapa, MXdaily low max17.8 C (64.0 F)1.6 C (2.9 F)5 years12 of 100 (Routine)
11 August 2012Colonia Santa Ursula Coapa, MXdaily low max (Tie)20.0 C (68.0 F)tie9 years1 of 100 (Routine)
10 August 2012Colonia Santa Ursula Coapa, MXdaily low max (Tie)17.8 C (64.0 F)tie7 years1 of 100 (Routine)
7 August 2012Colonia Santa Ursula Coapa, MXdaily high max28.9 C (84.0 F)0.6 C (1.1 F)30 years15 of 100 (Routine)
6 August 2012Colonia Santa Ursula Coapa, MXdaily high max (Tie)28.3 C (82.9 F)tie31 years3 of 100 (Routine)
16 July 2012Colonia Santa Ursula Coapa, MXdaily rain40.9 mm (1.6 in)9.1 mm (0.36 in)5 years15 of 100 (Routine)
31 May 2012Colonia Santa Ursula Coapa, MXdaily high max (Tie)31.7 C (89.1 F)tie32 years3 of 100 (Routine)
1 May 2012Colonia Santa Ursula Coapa, MXdaily high min (Tie)15.0 C (59.0 F)tie24 years2 of 100 (Routine)
18 April 2012Colonia Santa Ursula Coapa, MXdaily low max17.8 C (64.0 F)2.2 C (4.0 F)35 years20 of 100 (Routine)
2 April 2012Colonia Santa Ursula Coapa, MXdaily rain (Tie)1.3 mm (0.05 in)tie10 years1 of 100 (Routine)
15 March 2012Colonia Santa Ursula Coapa, MXdaily rain30.0 mm (1.2 in)27.2 mm (1.1 in)34 years53 of 100 (Notable)
9 March 2012Colonia Santa Ursula Coapa, MXdaily rain0.8 mm (0.03 in)0.8 mm (0.03 in)41 years17 of 100 (Routine)
29 February 2012Colonia Santa Ursula Coapa, MXdaily high min11.1 C (52.0 F)1.1 C (2.0 F)4 years9 of 100 (Routine)
18 February 2012Colonia Santa Ursula Coapa, MXdaily high min (Tie)10.0 C (50.0 F)tie29 years3 of 100 (Routine)
10 February 2012Colonia Santa Ursula Coapa, MXdaily low max (Tie)15.0 C (59.0 F)tie32 years3 of 100 (Routine)
9 February 2012Colonia Santa Ursula Coapa, MXdaily rain7.9 mm (0.31 in)5.6 mm (0.22 in)4 years20 of 100 (Routine)
8 February 2012Colonia Santa Ursula Coapa, MXdaily rain2.8 mm (0.11 in)2.8 mm (0.11 in)40 years20 of 100 (Routine)
7 February 2012Colonia Santa Ursula Coapa, MXdaily rain4.3 mm (0.17 in)2.0 mm (0.08 in)20 years17 of 100 (Routine)

Climate Trend

33 complete years, 1971 to 2012
Annual mean temperature at Colonia Santa Ursula Coapa as warming stripes, 1971 to 2012 One stripe for each of 33 complete years at Colonia Santa Ursula Coapa, 1971 to 2012. Blue stripes are years cooler than the station's own mean of 17.0 C (62.6 F); red stripes are warmer. The coolest year was 1974, at 14.8 C (58.6 F), and the warmest was 1998, at 19.2 C (66.5 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1971: 15.9 C, -1.1 C from the station mean1972: 15.9 C, -1.1 C from the station mean1973: 15.7 C, -1.2 C from the station mean1974: 14.8 C, -2.2 C from the station mean1976: 15.9 C, -1.1 C from the station mean1977: 16.3 C, -0.7 C from the station mean1978: 16.6 C, -0.4 C from the station mean1979: 16.6 C, -0.4 C from the station mean1980: 17.4 C, +0.4 C from the station mean1981: 17.4 C, +0.4 C from the station mean1982: 18.4 C, +1.4 C from the station mean1983: 17.4 C, +0.4 C from the station mean1984: 17.1 C, +0.1 C from the station mean1985: 17.3 C, +0.3 C from the station mean1986: 17.5 C, +0.5 C from the station mean1987: 17.5 C, +0.6 C from the station mean1988: 16.7 C, -0.3 C from the station mean1989: 16.6 C, -0.4 C from the station mean1990: 17.0 C, +0.1 C from the station mean1991: 16.8 C, -0.2 C from the station mean1992: 16.9 C, -0.1 C from the station mean1995: 17.4 C, +0.4 C from the station mean1996: 16.6 C, -0.4 C from the station mean1997: 18.1 C, +1.1 C from the station mean1998: 19.2 C, +2.2 C from the station mean2000: 17.6 C, +0.6 C from the station mean2001: 17.2 C, +0.2 C from the station mean2002: 17.1 C, +0.2 C from the station mean2003: 17.3 C, +0.3 C from the station mean2007: 16.8 C, -0.2 C from the station mean2008: 16.7 C, -0.3 C from the station mean2011: 17.9 C, +0.9 C from the station mean2012: 17.2 C, +0.2 C from the station mean197119751980198519901995200020052010
One stripe for each of 33 complete years at Colonia Santa Ursula Coapa, 1971 to 2012. Blue stripes are years cooler than the station's own mean of 17.0 C (62.6 F); red stripes are warmer. The coolest year was 1974, at 14.8 C (58.6 F), and the warmest was 1998, at 19.2 C (66.5 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Colonia Santa Ursula Coapa as warming stripes, 1971 to 2012
YearAnnual mean temperatureDifference from the station mean
197115.9 C-1.12 C
197215.9 C-1.07 C
197315.7 C-1.25 C
197414.8 C-2.19 C
197615.9 C-1.11 C
197716.3 C-0.71 C
197816.6 C-0.41 C
197916.6 C-0.39 C
198017.4 C+0.37 C
198117.4 C+0.38 C
198218.4 C+1.40 C
198317.4 C+0.39 C
198417.1 C+0.07 C
198517.3 C+0.34 C
198617.5 C+0.49 C
198717.5 C+0.55 C
198816.7 C-0.29 C
198916.6 C-0.40 C
199017.0 C+0.05 C
199116.8 C-0.20 C
199216.9 C-0.12 C
199517.4 C+0.41 C
199616.6 C-0.37 C
199718.1 C+1.11 C
199819.2 C+2.19 C
200017.6 C+0.61 C
200117.2 C+0.23 C
200217.1 C+0.15 C
200317.3 C+0.31 C
200716.8 C-0.21 C
200816.7 C-0.33 C
201117.9 C+0.89 C
201217.2 C+0.19 C

The annual mean temperature here has risen by 0.4 C (0.1 to 0.6) per decade over 1971 to 2012. In Fahrenheit: 0.6 F (0.2 to 1.0) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Colonia Santa Ursula Coapa
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.4 C (0.1 to 0.6) per decade0.6 F (0.2 to 1.0) per decade1971 to 201233Rise
Mean daily maximum0.1 C (-0.3 to 0.5) per decade0.3 F (-0.5 to 1.0) per decade1971 to 201233Not clearly different from zero
Mean daily minimum0.6 C (0.3 to 0.8) per decade1.0 F (0.6 to 1.4) per decade1971 to 201233Rise

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

1971 to 2012
Yearly extremes at Colonia Santa Ursula Coapa: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.6 C (96.1 F)198832.2 C (90.0 F)40
Coldest night (TNn)-3.3 C (26.1 F)19760.6 C (33.1 F)40
Wettest day (Rx1day)93.0 mm (3.7 in)199048.3 mm (1.9 in)40
Wettest five days (Rx5day)150.7 mm (5.9 in)200292.6 mm (3.6 in)40
Longest dry spell (CDD)132 days199862 days40

Hottest day (TXx)

Hottest day (TXx) at Colonia Santa Ursula Coapa by year The hottest day of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 35.6 C (96.1 F) in 1988, marked on the chart; the median year is 32.2 C (90.0 F). 2628303234361980199020002010Record: 35.6 C (96.1 F) in 1988
The hottest day of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 35.6 C (96.1 F) in 1988, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Colonia Santa Ursula Coapa by year
YearHottest day (TXx)
197130.0 C (86.0 F)
197228.9 C (84.0 F)
197330.6 C (87.1 F)
197430.0 C (86.0 F)
197531.7 C (89.1 F)
197629.4 C (84.9 F)
197731.7 C (89.1 F)
197832.2 C (90.0 F)
197930.6 C (87.1 F)
198035.0 C (95.0 F)
198133.9 C (93.0 F)
198235.0 C (95.0 F)
198334.4 C (93.9 F)
198433.9 C (93.0 F)
198532.8 C (91.0 F)
198633.9 C (93.0 F)
198733.9 C (93.0 F)
198835.6 C (96.1 F)
198932.8 C (91.0 F)
199032.2 C (90.0 F)
199132.8 C (91.0 F)
199231.7 C (89.1 F)
199332.2 C (90.0 F)
199427.8 C (82.0 F)
199533.9 C (93.0 F)
199632.8 C (91.0 F)
199731.1 C (88.0 F)
199835.0 C (95.0 F)
199933.9 C (93.0 F)
200031.7 C (89.1 F)
200132.2 C (90.0 F)
200232.2 C (90.0 F)
200333.9 C (93.0 F)
200430.6 C (87.1 F)
200533.3 C (91.9 F)
200627.8 C (82.0 F)
200731.1 C (88.0 F)
200832.8 C (91.0 F)
201133.9 C (93.0 F)
201231.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at Colonia Santa Ursula Coapa by year The coldest night of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is -3.3 C (26.1 F) in 1976, marked on the chart; the median year is 0.6 C (33.1 F). -505101980199020002010Record: -3.3 C (26.1 F) in 1976
The coldest night of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is -3.3 C (26.1 F) in 1976, marked on the chart; the median year is 0.6 C (33.1 F).
Coldest night (TNn) at Colonia Santa Ursula Coapa by year
YearColdest night (TNn)
19711.7 C (35.1 F)
1972-1.1 C (30.0 F)
19730.0 C (32.0 F)
19740.0 C (32.0 F)
19750.0 C (32.0 F)
1976-3.3 C (26.1 F)
19770.6 C (33.1 F)
19780.0 C (32.0 F)
19790.6 C (33.1 F)
19800.0 C (32.0 F)
19810.0 C (32.0 F)
19820.0 C (32.0 F)
19830.0 C (32.0 F)
19840.6 C (33.1 F)
19850.6 C (33.1 F)
19860.0 C (32.0 F)
19870.0 C (32.0 F)
19880.0 C (32.0 F)
19890.0 C (32.0 F)
19900.0 C (32.0 F)
19912.8 C (37.0 F)
19920.0 C (32.0 F)
19935.6 C (42.1 F)
19947.8 C (46.0 F)
19951.7 C (35.1 F)
19960.6 C (33.1 F)
19972.8 C (37.0 F)
19981.7 C (35.1 F)
19991.7 C (35.1 F)
20002.8 C (37.0 F)
20012.8 C (37.0 F)
20021.7 C (35.1 F)
20032.8 C (37.0 F)
20040.0 C (32.0 F)
20052.8 C (37.0 F)
20061.7 C (35.1 F)
20072.8 C (37.0 F)
20080.0 C (32.0 F)
20112.2 C (36.0 F)
20120.0 C (32.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Colonia Santa Ursula Coapa by year The wettest day of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 93.0 mm (3.7 in) in 1990, marked on the chart; the median year is 48.3 mm (1.9 in). 204060801001980199020002010Record: 93.0 mm (3.7 in) in 1990
The wettest day of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 93.0 mm (3.7 in) in 1990, marked on the chart; the median year is 48.3 mm (1.9 in).
Wettest day (Rx1day) at Colonia Santa Ursula Coapa by year
YearWettest day (Rx1day)
197137.8 mm (1.5 in)
197237.3 mm (1.5 in)
197335.3 mm (1.4 in)
197453.3 mm (2.1 in)
197534.3 mm (1.4 in)
197643.9 mm (1.7 in)
197781.8 mm (3.2 in)
197873.9 mm (2.9 in)
197940.4 mm (1.6 in)
198042.9 mm (1.7 in)
198157.9 mm (2.3 in)
198236.8 mm (1.4 in)
198358.9 mm (2.3 in)
198449.3 mm (1.9 in)
198555.9 mm (2.2 in)
198641.4 mm (1.6 in)
198733.8 mm (1.3 in)
198864.8 mm (2.6 in)
198956.4 mm (2.2 in)
199093.0 mm (3.7 in)
199156.9 mm (2.2 in)
199239.1 mm (1.5 in)
199353.3 mm (2.1 in)
199442.2 mm (1.7 in)
199568.1 mm (2.7 in)
199647.2 mm (1.9 in)
199738.4 mm (1.5 in)
199879.2 mm (3.1 in)
199928.4 mm (1.1 in)
200056.9 mm (2.2 in)
200151.8 mm (2.0 in)
200272.9 mm (2.9 in)
200339.9 mm (1.6 in)
200429.0 mm (1.1 in)
200535.8 mm (1.4 in)
200657.9 mm (2.3 in)
200747.8 mm (1.9 in)
200837.8 mm (1.5 in)
201153.8 mm (2.1 in)
201248.8 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Colonia Santa Ursula Coapa by year The wettest five days of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 150.7 mm (5.9 in) in 2002, marked on the chart; the median year is 92.6 mm (3.6 in). 50751001251501751980199020002010Record: 150.7 mm (5.9 in) in 2002
The wettest five days of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 150.7 mm (5.9 in) in 2002, marked on the chart; the median year is 92.6 mm (3.6 in).
Wettest five days (Rx5day) at Colonia Santa Ursula Coapa by year
YearWettest five days (Rx5day)
197165.5 mm (2.6 in)
197290.4 mm (3.6 in)
197386.4 mm (3.4 in)
1974137.4 mm (5.4 in)
197565.3 mm (2.6 in)
197698.8 mm (3.9 in)
1977102.3 mm (4.0 in)
197890.4 mm (3.6 in)
197979.2 mm (3.1 in)
198086.4 mm (3.4 in)
1981110.0 mm (4.3 in)
198259.7 mm (2.4 in)
198394.5 mm (3.7 in)
1984139.0 mm (5.5 in)
1985101.3 mm (4.0 in)
198673.7 mm (2.9 in)
198777.5 mm (3.1 in)
1988137.3 mm (5.4 in)
198984.8 mm (3.3 in)
1990122.0 mm (4.8 in)
199197.5 mm (3.8 in)
199292.0 mm (3.6 in)
199393.1 mm (3.7 in)
199499.3 mm (3.9 in)
1995119.2 mm (4.7 in)
199694.9 mm (3.7 in)
199761.8 mm (2.4 in)
1998150.6 mm (5.9 in)
199952.0 mm (2.0 in)
200086.4 mm (3.4 in)
200175.7 mm (3.0 in)
2002150.7 mm (5.9 in)
200385.8 mm (3.4 in)
200454.7 mm (2.2 in)
200596.0 mm (3.8 in)
200689.6 mm (3.5 in)
2007126.9 mm (5.0 in)
200863.3 mm (2.5 in)
2011109.6 mm (4.3 in)
2012104.2 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Colonia Santa Ursula Coapa by year The longest dry spell of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 132 days in 1998, marked on the chart; the median year is 62 days. 0501001501980199020002010Record: 132 days in 1998
The longest dry spell of the year at Colonia Santa Ursula Coapa, 1971 to 2012. The record is 132 days in 1998, marked on the chart; the median year is 62 days.
Longest dry spell (CDD) at Colonia Santa Ursula Coapa by year
YearLongest dry spell (CDD)
197176 days
197233 days
197357 days
197442 days
197565 days
197643 days
197783 days
197843 days
197973 days
198036 days
198136 days
198280 days
198359 days
198445 days
198549 days
198699 days
198763 days
198840 days
198946 days
199065 days
199161 days
199231 days
199362 days
199455 days
199538 days
1996105 days
199769 days
1998132 days
199973 days
200059 days
200169 days
200245 days
200395 days
200467 days
200580 days
200628 days
200769 days
2008104 days
2011105 days
201256 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

36 years, 1971 to 2012

A day with at least 48.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 104.0 mm (4.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Colonia Santa Ursula Coapa: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years48.4 mm (1.9 in)
5 years62.2 mm (2.4 in)
10 years71.8 mm (2.8 in)
25 years84.4 mm (3.3 in)
50 years94.1 mm (3.7 in)Longer than the 36 years of record
100 years104.0 mm (4.1 in)Longer than the 36 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, 36 years of values from 1971 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: 93.0 mm (3.7 in) in 1990; 81.8 mm (3.2 in) in 1977; 79.2 mm (3.1 in) in 1998.

Download the Data

  • Data for Colonia Santa Ursula Coapa standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Colonia Santa Ursula Coapa 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

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