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Ciudad Santos Weather Records (MXN00024053)

Record envelope, standing records and threshold days for Ciudad Santos (MXN00024053), Mexico, with 51 years of record.

Key Facts for Ciudad Santos

  • Ciudad Santos (MXN00024053) is a weather station in Mexico at 21.50 latitude and -98.55 longitude, 94 m (308 ft) above sea level.
  • The station reports from 1961 to 2011, 51 years of record.
  • 1,464 records set at Ciudad Santos still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Ciudad Santos tied a daily record high minimum temperature of 22.8 C (73.0 F) on 30 October 2011.

About the Station

  • Location: Mexico, 21.50 latitude, -98.55 longitude.
  • Elevation: 94 m (308 ft).
  • Period of record: 1961 to 2011, 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 Ciudad Santos, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ciudad Santos. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Ciudad Santos. 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 Ciudad Santos, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan42.8 C (109.0 F)-2.2 C (28.0 F)n/an/a
Feb43.9 C (111.0 F)1.7 C (35.1 F)n/an/a
Mar47.8 C (118.0 F)2.8 C (37.0 F)n/an/a
Apr48.9 C (120.0 F)5.0 C (41.0 F)n/an/a
May47.8 C (118.0 F)10.6 C (51.1 F)n/an/a
Jun47.8 C (118.0 F)11.7 C (53.1 F)n/an/a
Jul45.0 C (113.0 F)10.6 C (51.1 F)n/an/a
Aug46.7 C (116.1 F)10.0 C (50.0 F)n/an/a
Sep43.9 C (111.0 F)8.9 C (48.0 F)n/an/a
Oct42.8 C (109.0 F)5.6 C (42.1 F)n/an/a
Nov40.6 C (105.1 F)2.8 C (37.0 F)n/an/a
Dec40.0 C (104.0 F)-4.4 C (24.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ciudad Santos by the year they were set 1,464 records at Ciudad Santos still stand. 1995 holds the most, with 237. 01002003001961: 181962: 211963: 241964: 191965: 221966: 351967: 101968: 191969: 251970: 271971: 601972: 111973: 291974: 241975: 111976: 321977: 141978: 181979: 231980: 191981: 241982: 191983: 151984: 211985: 131986: 71987: 231988: 141989: 321990: 131994: 861995: 2371996: 341997: 1011998: 601999: 202000: 302001: 802002: 102003: 62004: 142005: 42006: 212007: 62008: 152009: 222010: 182011: 581961196619711976198119861994199920042009
1,464 records at Ciudad Santos still stand. 1995 holds the most, with 237.
Standing records at Ciudad Santos by the year they were set
Year setStanding records
196118
196221
196324
196419
196522
196635
196710
196819
196925
197027
197160
197211
197329
197424
197511
197632
197714
197818
197923
198019
198124
198219
198315
198421
198513
19867
198723
198814
198932
199013
199486
1995237
199634
1997101
199860
199920
200030
200180
200210
20036
200414
20054
200621
20076
200815
200922
201018
201158

All-Time Record Progression

1 new records
When Ciudad Santos set new all-time records 1 all-time records were set at Ciudad Santos between 26 March 2011 and 26 March 2011. Each dot is a new record. Record high minimum temperature26 March 2011: Record high minimum temperature 30.0 C (86.0 F)
1 all-time records were set at Ciudad Santos between 26 March 2011 and 26 March 2011. Each dot is a new record.
When Ciudad Santos set new all-time records
DateKindDetail
2011-03-26Record high minimum temperatureRecord high minimum temperature 30.0 C (86.0 F)

Wettest Day of Each Month

Jun: 362.0 mm (14.3 in)
Record daily precipitation for each month at Ciudad Santos The wettest day on record for each calendar month at Ciudad Santos. The most was 362.0 mm (14.3 in) on 21 June 1970. 0100200300400 Jan: 85.1 mm (3.4 in), 12 January 1990 Jan Feb: 87.9 mm (3.5 in), 19 February 1970 Feb Mar: 90.2 mm (3.6 in), 17 March 1980 Mar Apr: 112.0 mm (4.4 in), 18 April 1976 Apr May: 159.3 mm (6.3 in), 24 May 1971 May Jun: 362.0 mm (14.3 in), 21 June 1970 Jun Jul: 246.1 mm (9.7 in), 11 July 1976 Jul Aug: 212.1 mm (8.4 in), 29 August 1989 Aug Sep: 336.0 mm (13.2 in), 9 September 1975 Sep Oct: 190.5 mm (7.5 in), 4 October 2005 Oct Nov: 88.1 mm (3.5 in), 16 November 1985 Nov Dec: 112.0 mm (4.4 in), 4 December 1981 Dec
The wettest day on record for each calendar month at Ciudad Santos. The most was 362.0 mm (14.3 in) on 21 June 1970.
Record daily precipitation for each month at Ciudad Santos
MonthRecord daily precipitation (mm)Date
Jan85.1 mm (3.4 in)12 January 1990
Feb87.9 mm (3.5 in)19 February 1970
Mar90.2 mm (3.6 in)17 March 1980
Apr112.0 mm (4.4 in)18 April 1976
May159.3 mm (6.3 in)24 May 1971
Jun362.0 mm (14.3 in)21 June 1970
Jul246.1 mm (9.7 in)11 July 1976
Aug212.1 mm (8.4 in)29 August 1989
Sep336.0 mm (13.2 in)9 September 1975
Oct190.5 mm (7.5 in)4 October 2005
Nov88.1 mm (3.5 in)16 November 1985
Dec112.0 mm (4.4 in)4 December 1981

Period of Record Coverage

1961 to 2011
Days with data per year at Ciudad Santos 48 years of record at Ciudad Santos, 1961 to 2011. 8 years have data for under 90 percent of days and are left out of rankings: 1964, 1966, 1967, 1984, 1994, 1996, 2000, 2011. 1961: 359 of 365 days1962: 362 of 365 days1963: 363 of 365 days1964: 305 of 366 days1965: 357 of 365 days1966: 321 of 365 days1967: 202 of 365 days1968: 360 of 366 days1969: 344 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 363 of 365 days1974: 364 of 365 days1975: 359 of 365 days1976: 358 of 366 days1977: 361 of 365 days1978: 358 of 365 days1979: 358 of 365 days1980: 357 of 366 days1981: 362 of 365 days1982: 360 of 365 days1983: 363 of 365 days1984: 329 of 366 days1985: 337 of 365 days1986: 364 of 365 days1987: 365 of 365 days1988: 364 of 366 days1989: 363 of 365 days1990: 364 of 365 days1994: 147 of 365 days1995: 363 of 365 days1996: 293 of 366 days1997: 362 of 365 days1998: 360 of 365 days1999: 334 of 365 days2000: 209 of 366 days2001: 360 of 365 days2002: 362 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 303 of 365 days19701980199020002010
48 years of record at Ciudad Santos, 1961 to 2011. 8 years have data for under 90 percent of days and are left out of rankings: 1964, 1966, 1967, 1984, 1994, 1996, 2000, 2011.
Days with data per year at Ciudad Santos
YearDays with dataShare of yearComplete
196135998%Yes
196236299%Yes
196336399%Yes
196430583%No
196535798%Yes
196632188%No
196720255%No
196836098%Yes
196934494%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
197336399%Yes
1974364100%Yes
197535998%Yes
197635898%Yes
197736199%Yes
197835898%Yes
197935898%Yes
198035798%Yes
198136299%Yes
198236099%Yes
198336399%Yes
198432990%No
198533792%Yes
1986364100%Yes
1987365100%Yes
198836499%Yes
198936399%Yes
1990364100%Yes
199414740%No
199536399%Yes
199629380%No
199736299%Yes
199836099%Yes
199933492%Yes
200020957%No
200136099%Yes
200236299%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
201130383%No

Latest Records

20
Latest records at Ciudad Santos
DateStationRecordValueBeat old record byOld record stoodSignificance
30 October 2011Ciudad Santos, MXdaily high min (Tie)22.8 C (73.0 F)tie38 years4 of 100 (Routine)
24 September 2011Ciudad Santos, MXdaily high max (Tie)37.8 C (100.0 F)tie37 years4 of 100 (Routine)
2 September 2011Ciudad Santos, MXdaily high max40.6 C (105.1 F)0.6 C (1.1 F)16 years10 of 100 (Routine)
2 September 2011Ciudad Santos, MXdaily high min (Tie)25.0 C (77.0 F)tie29 years3 of 100 (Routine)
29 August 2011Ciudad Santos, MXdaily high max (Tie)40.6 C (105.1 F)tie16 years2 of 100 (Routine)
10 August 2011Ciudad Santos, MXdaily high min (Tie)25.0 C (77.0 F)tie16 years2 of 100 (Routine)
9 August 2011Ciudad Santos, MXdaily high min (Tie)25.0 C (77.0 F)tie1 year1 of 100 (Routine)
19 July 2011Ciudad Santos, MXdaily low min (Tie)13.9 C (57.0 F)tie13 years2 of 100 (Routine)
18 July 2011Ciudad Santos, MXdaily low min (Tie)15.0 C (59.0 F)tie13 years2 of 100 (Routine)
17 July 2011Ciudad Santos, MXdaily low min (Tie)13.9 C (57.0 F)tie12 years2 of 100 (Routine)
2 July 2011Ciudad Santos, MXdaily low min (Tie)16.7 C (62.1 F)tie13 years2 of 100 (Routine)
30 June 2011Ciudad Santos, MXdaily low min (Tie)15.6 C (60.1 F)tie12 years2 of 100 (Routine)
29 June 2011Ciudad Santos, MXdaily rain80.3 mm (3.2 in)6.4 mm (0.25 in)40 years18 of 100 (Routine)
28 June 2011Ciudad Santos, MXdaily rain77.5 mm (3.1 in)27.7 mm (1.1 in)41 years24 of 100 (Routine)
25 June 2011Ciudad Santos, MXdaily high max (Tie)40.0 C (104.0 F)tie16 years2 of 100 (Routine)
21 May 2011Ciudad Santos, MXdaily high max45.6 C (114.1 F)3.9 C (7.0 F)12 years16 of 100 (Routine)
20 May 2011Ciudad Santos, MXdaily high max42.8 C (109.0 F)1.1 C (2.0 F)12 years10 of 100 (Routine)
19 May 2011Ciudad Santos, MXdaily high max43.9 C (111.0 F)1.1 C (2.0 F)16 years11 of 100 (Routine)
18 May 2011Ciudad Santos, MXdaily high min25.6 C (78.1 F)0.6 C (1.1 F)29 years14 of 100 (Routine)
18 May 2011Ciudad Santos, MXdaily high max42.8 C (109.0 F)1.1 C (2.0 F)16 years11 of 100 (Routine)

Climate Trend

38 complete years, 1961 to 2010
Annual mean temperature at Ciudad Santos as warming stripes, 1961 to 2010 One stripe for each of 38 complete years at Ciudad Santos, 1961 to 2010. Blue stripes are years cooler than the station's own mean of 23.5 C (74.4 F); red stripes are warmer. The coolest year was 2001, at 21.1 C (70.0 F), and the warmest was 1995, at 29.5 C (85.0 F). The strongest colour marks a difference of 6.0 C (10.8 F). 1961: 22.5 C, -1.0 C from the station mean1962: 23.5 C, -0.1 C from the station mean1963: 22.7 C, -0.8 C from the station mean1965: 22.9 C, -0.6 C from the station mean1968: 22.7 C, -0.8 C from the station mean1969: 23.4 C, -0.1 C from the station mean1970: 24.8 C, +1.3 C from the station mean1971: 25.2 C, +1.6 C from the station mean1972: 25.5 C, +2.0 C from the station mean1973: 25.3 C, +1.8 C from the station mean1974: 24.2 C, +0.6 C from the station mean1975: 23.1 C, -0.4 C from the station mean1976: 22.0 C, -1.5 C from the station mean1977: 23.3 C, -0.3 C from the station mean1978: 23.3 C, -0.3 C from the station mean1979: 23.8 C, +0.3 C from the station mean1980: 23.6 C, 0.0 C from the station mean1981: 23.4 C, -0.1 C from the station mean1982: 24.2 C, +0.7 C from the station mean1983: 23.4 C, -0.1 C from the station mean1986: 23.2 C, -0.3 C from the station mean1987: 22.5 C, -1.0 C from the station mean1988: 22.8 C, -0.7 C from the station mean1989: 22.9 C, -0.6 C from the station mean1990: 23.1 C, -0.4 C from the station mean1995: 29.5 C, +5.9 C from the station mean1997: 22.0 C, -1.5 C from the station mean1998: 24.3 C, +0.8 C from the station mean2001: 21.1 C, -2.4 C from the station mean2002: 24.4 C, +0.9 C from the station mean2003: 24.5 C, +1.0 C from the station mean2004: 24.3 C, +0.7 C from the station mean2005: 22.8 C, -0.7 C from the station mean2006: 23.5 C, -0.1 C from the station mean2007: 21.6 C, -1.9 C from the station mean2008: 22.6 C, -0.9 C from the station mean2009: 24.1 C, +0.5 C from the station mean2010: 22.2 C, -1.3 C from the station mean19611965197019751980198519901995200020052010
One stripe for each of 38 complete years at Ciudad Santos, 1961 to 2010. Blue stripes are years cooler than the station's own mean of 23.5 C (74.4 F); red stripes are warmer. The coolest year was 2001, at 21.1 C (70.0 F), and the warmest was 1995, at 29.5 C (85.0 F). The strongest colour marks a difference of 6.0 C (10.8 F).
Annual mean temperature at Ciudad Santos as warming stripes, 1961 to 2010
YearAnnual mean temperatureDifference from the station mean
196122.5 C-1.05 C
196223.5 C-0.08 C
196322.7 C-0.85 C
196522.9 C-0.64 C
196822.7 C-0.80 C
196923.4 C-0.12 C
197024.8 C+1.27 C
197125.2 C+1.62 C
197225.5 C+1.96 C
197325.3 C+1.80 C
197424.2 C+0.64 C
197523.1 C-0.42 C
197622.0 C-1.51 C
197723.3 C-0.27 C
197823.3 C-0.26 C
197923.8 C+0.30 C
198023.6 C+0.04 C
198123.4 C-0.11 C
198224.2 C+0.70 C
198323.4 C-0.14 C
198623.2 C-0.33 C
198722.5 C-1.02 C
198822.8 C-0.71 C
198922.9 C-0.62 C
199023.1 C-0.44 C
199529.5 C+5.92 C
199722.0 C-1.55 C
199824.3 C+0.78 C
200121.1 C-2.45 C
200224.4 C+0.90 C
200324.5 C+0.97 C
200424.3 C+0.71 C
200522.8 C-0.70 C
200623.5 C-0.07 C
200721.6 C-1.95 C
200822.6 C-0.91 C
200924.1 C+0.52 C
201022.2 C-1.31 C

The fitted trend in annual mean temperature here over 1961 to 2010 is -0.1 C (-0.4 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.7 to 0.4) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ciudad Santos
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.1 C (-0.4 to 0.2) per decade-0.1 F (-0.7 to 0.4) per decade1961 to 201038Not clearly different from zero
Mean daily maximum-0.1 C (-0.7 to 0.4) per decade-0.2 F (-1.2 to 0.7) per decade1961 to 201038Not clearly different from zero
Mean daily minimum0.00 C (-0.20 to 0.20) per decade0.00 F (-0.37 to 0.36) per decade1961 to 201038Not 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

1961 to 2011
Yearly extremes at Ciudad Santos: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)48.9 C (120.0 F)197140.6 C (105.1 F)48
Coldest night (TNn)-4.4 C (24.1 F)19893.9 C (39.0 F)48
Wettest day (Rx1day)362.0 mm (14.3 in)1970126.5 mm (5.0 in)48
Wettest five days (Rx5day)928.0 mm (36.5 in)1970289.6 mm (11.4 in)48
Longest dry spell (CDD)62 days201127 days48

Hottest day (TXx)

Hottest day (TXx) at Ciudad Santos by year The hottest day of the year at Ciudad Santos, 1961 to 2011. The record is 48.9 C (120.0 F) in 1971, marked on the chart; the median year is 40.6 C (105.1 F). 303540455019701980199020002010Record: 48.9 C (120.0 F) in 1971
The hottest day of the year at Ciudad Santos, 1961 to 2011. The record is 48.9 C (120.0 F) in 1971, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Ciudad Santos by year
YearHottest day (TXx)
196138.9 C (102.0 F)
196238.9 C (102.0 F)
196337.8 C (100.0 F)
196443.9 C (111.0 F)
196537.8 C (100.0 F)
196638.9 C (102.0 F)
196742.8 C (109.0 F)
196836.7 C (98.1 F)
196940.0 C (104.0 F)
197042.8 C (109.0 F)
197148.9 C (120.0 F)
197243.9 C (111.0 F)
197347.8 C (118.0 F)
197448.3 C (118.9 F)
197542.8 C (109.0 F)
197635.0 C (95.0 F)
197737.8 C (100.0 F)
197840.6 C (105.1 F)
197941.1 C (106.0 F)
198040.6 C (105.1 F)
198141.7 C (107.1 F)
198240.0 C (104.0 F)
198340.6 C (105.1 F)
198445.0 C (113.0 F)
198538.9 C (102.0 F)
198638.9 C (102.0 F)
198738.9 C (102.0 F)
198840.0 C (104.0 F)
198941.7 C (107.1 F)
199038.9 C (102.0 F)
199440.6 C (105.1 F)
199548.9 C (120.0 F)
199642.8 C (109.0 F)
199740.6 C (105.1 F)
199845.6 C (114.1 F)
199942.8 C (109.0 F)
200033.9 C (93.0 F)
200135.0 C (95.0 F)
200241.7 C (107.1 F)
200340.6 C (105.1 F)
200440.0 C (104.0 F)
200541.7 C (107.1 F)
200643.9 C (111.0 F)
200735.6 C (96.1 F)
200841.7 C (107.1 F)
200941.7 C (107.1 F)
201037.8 C (100.0 F)
201148.9 C (120.0 F)

Coldest night (TNn)

Coldest night (TNn) at Ciudad Santos by year The coldest night of the year at Ciudad Santos, 1961 to 2011. The record is -4.4 C (24.1 F) in 1989, marked on the chart; the median year is 3.9 C (39.0 F). -5051019701980199020002010Record: -4.4 C (24.1 F) in 1989
The coldest night of the year at Ciudad Santos, 1961 to 2011. The record is -4.4 C (24.1 F) in 1989, marked on the chart; the median year is 3.9 C (39.0 F).
Coldest night (TNn) at Ciudad Santos by year
YearColdest night (TNn)
19615.6 C (42.1 F)
1962-2.2 C (28.0 F)
19630.6 C (33.1 F)
19642.2 C (36.0 F)
19653.9 C (39.0 F)
19665.6 C (42.1 F)
19672.8 C (37.0 F)
19682.8 C (37.0 F)
19693.9 C (39.0 F)
19702.8 C (37.0 F)
19712.8 C (37.0 F)
19725.0 C (41.0 F)
19731.7 C (35.1 F)
19742.8 C (37.0 F)
19752.8 C (37.0 F)
19761.7 C (35.1 F)
19772.8 C (37.0 F)
19785.6 C (42.1 F)
19792.8 C (37.0 F)
19803.9 C (39.0 F)
19815.6 C (42.1 F)
19822.8 C (37.0 F)
19830.6 C (33.1 F)
19843.9 C (39.0 F)
19851.7 C (35.1 F)
19862.8 C (37.0 F)
19873.9 C (39.0 F)
19881.7 C (35.1 F)
1989-4.4 C (24.1 F)
19902.8 C (37.0 F)
19945.0 C (41.0 F)
19956.7 C (44.1 F)
19968.9 C (48.0 F)
19975.0 C (41.0 F)
19988.9 C (48.0 F)
19997.8 C (46.0 F)
200010.0 C (50.0 F)
20016.7 C (44.1 F)
20028.9 C (48.0 F)
20032.8 C (37.0 F)
20041.7 C (35.1 F)
20055.6 C (42.1 F)
20065.0 C (41.0 F)
20073.9 C (39.0 F)
20085.0 C (41.0 F)
20093.9 C (39.0 F)
2010-1.1 C (30.0 F)
20118.9 C (48.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ciudad Santos by year The wettest day of the year at Ciudad Santos, 1961 to 2011. The record is 362.0 mm (14.3 in) in 1970, marked on the chart; the median year is 126.5 mm (5.0 in). 010020030040019701980199020002010Record: 362.0 mm (14.3 in) in 1970
The wettest day of the year at Ciudad Santos, 1961 to 2011. The record is 362.0 mm (14.3 in) in 1970, marked on the chart; the median year is 126.5 mm (5.0 in).
Wettest day (Rx1day) at Ciudad Santos by year
YearWettest day (Rx1day)
1961114.8 mm (4.5 in)
1962113.8 mm (4.5 in)
1963119.9 mm (4.7 in)
1964159.8 mm (6.3 in)
196574.9 mm (2.9 in)
1966144.8 mm (5.7 in)
1967176.3 mm (6.9 in)
1968150.4 mm (5.9 in)
1969119.9 mm (4.7 in)
1970362.0 mm (14.3 in)
1971159.3 mm (6.3 in)
1972121.2 mm (4.8 in)
1973165.1 mm (6.5 in)
1974203.2 mm (8.0 in)
1975336.0 mm (13.2 in)
1976246.1 mm (9.7 in)
1977126.0 mm (5.0 in)
1978248.2 mm (9.8 in)
1979163.1 mm (6.4 in)
1980127.0 mm (5.0 in)
1981222.0 mm (8.7 in)
1982122.2 mm (4.8 in)
1983145.0 mm (5.7 in)
1984161.0 mm (6.3 in)
1985161.3 mm (6.4 in)
1986118.1 mm (4.6 in)
198771.1 mm (2.8 in)
198899.1 mm (3.9 in)
1989212.1 mm (8.4 in)
199089.2 mm (3.5 in)
199477.0 mm (3.0 in)
1995169.9 mm (6.7 in)
199698.3 mm (3.9 in)
199753.1 mm (2.1 in)
199898.3 mm (3.9 in)
1999114.0 mm (4.5 in)
200091.9 mm (3.6 in)
200130.0 mm (1.2 in)
200270.1 mm (2.8 in)
2003113.8 mm (4.5 in)
2004117.3 mm (4.6 in)
2005190.5 mm (7.5 in)
200693.5 mm (3.7 in)
2007210.3 mm (8.3 in)
2008201.2 mm (7.9 in)
2009171.2 mm (6.7 in)
2010210.1 mm (8.3 in)
201185.6 mm (3.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ciudad Santos by year The wettest five days of the year at Ciudad Santos, 1961 to 2011. The record is 928.0 mm (36.5 in) in 1970, marked on the chart; the median year is 289.6 mm (11.4 in). 02505007501,00019701980199020002010Record: 928.0 mm (36.5 in) in 1970
The wettest five days of the year at Ciudad Santos, 1961 to 2011. The record is 928.0 mm (36.5 in) in 1970, marked on the chart; the median year is 289.6 mm (11.4 in).
Wettest five days (Rx5day) at Ciudad Santos by year
YearWettest five days (Rx5day)
1961289.5 mm (11.4 in)
1962163.3 mm (6.4 in)
1963369.3 mm (14.5 in)
1964225.5 mm (8.9 in)
1965161.8 mm (6.4 in)
1966317.3 mm (12.5 in)
1967497.1 mm (19.6 in)
1968191.8 mm (7.6 in)
1969304.2 mm (12.0 in)
1970928.0 mm (36.5 in)
1971191.0 mm (7.5 in)
1972299.6 mm (11.8 in)
1973356.7 mm (14.0 in)
1974593.7 mm (23.4 in)
1975736.4 mm (29.0 in)
1976651.6 mm (25.7 in)
1977222.2 mm (8.7 in)
1978593.4 mm (23.4 in)
1979298.5 mm (11.8 in)
1980387.6 mm (15.3 in)
1981567.5 mm (22.3 in)
1982277.4 mm (10.9 in)
1983266.4 mm (10.5 in)
1984563.4 mm (22.2 in)
1985323.9 mm (12.8 in)
1986300.7 mm (11.8 in)
1987289.6 mm (11.4 in)
1988201.5 mm (7.9 in)
1989251.5 mm (9.9 in)
1990168.7 mm (6.6 in)
1994142.6 mm (5.6 in)
1995253.0 mm (10.0 in)
1996273.6 mm (10.8 in)
1997111.3 mm (4.4 in)
1998347.5 mm (13.7 in)
1999311.1 mm (12.2 in)
2000153.3 mm (6.0 in)
200197.4 mm (3.8 in)
2002199.4 mm (7.9 in)
2003193.1 mm (7.6 in)
2004185.9 mm (7.3 in)
2005306.6 mm (12.1 in)
2006184.4 mm (7.3 in)
2007492.5 mm (19.4 in)
2008721.7 mm (28.4 in)
2009232.2 mm (9.1 in)
2010555.3 mm (21.9 in)
2011258.7 mm (10.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ciudad Santos by year The longest dry spell of the year at Ciudad Santos, 1961 to 2011. The record is 62 days in 2011, marked on the chart; the median year is 27 days. 02040608019701980199020002010Record: 62 days in 2011
The longest dry spell of the year at Ciudad Santos, 1961 to 2011. The record is 62 days in 2011, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Ciudad Santos by year
YearLongest dry spell (CDD)
196127 days
196232 days
196343 days
196442 days
196549 days
196624 days
196721 days
196818 days
196940 days
197051 days
197134 days
197214 days
197327 days
197424 days
197524 days
197620 days
197725 days
197823 days
197933 days
198024 days
198130 days
198231 days
198313 days
198425 days
198520 days
198619 days
198720 days
198817 days
198917 days
199018 days
199417 days
199520 days
199634 days
199724 days
199827 days
199947 days
200034 days
200137 days
200231 days
200326 days
200421 days
200528 days
200628 days
200714 days
200840 days
200929 days
201029 days
201162 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

41 years, 1961 to 2010

A day with at least 138.9 mm (5.5 in) of rain is expected about once in 2 years. A day with at least 374.3 mm (14.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Ciudad Santos: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years138.9 mm (5.5 in)
5 years199.9 mm (7.9 in)
10 years241.1 mm (9.5 in)
25 years294.1 mm (11.6 in)
50 years334.1 mm (13.2 in)Longer than the 41 years of record
100 years374.3 mm (14.7 in)Longer than the 41 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, 41 years of values from 1961 to 2010.

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: 362.0 mm (14.3 in) in 1970; 336.0 mm (13.2 in) in 1975; 248.2 mm (9.8 in) in 1978.

Download the Data

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