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Pericos Weather Records (MXN00025071)

Record envelope, standing records and threshold days for Pericos (MXN00025071), Mexico, with 49 years of record.

Key Facts for Pericos

  • Pericos (MXN00025071) is a weather station in Mexico at 25.08 latitude and -107.68 longitude, 51 m (167 ft) above sea level.
  • The station reports from 1961 to 2009, 49 years of record.
  • 1,464 records set at Pericos still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Pericos set a daily record low maximum temperature of 27.8 C (82.0 F) on 23 August 2009.

About the Station

  • Location: Mexico, 25.08 latitude, -107.68 longitude.
  • Elevation: 51 m (167 ft).
  • Period of record: 1961 to 2009, 49 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 Pericos, with 2026 drawn through them The band shows the record high and record low for each calendar day at Pericos. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 01020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Pericos. 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 Pericos, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan38.9 C (102.0 F)1.1 C (34.0 F)n/an/a
Feb37.2 C (99.0 F)2.2 C (36.0 F)n/an/a
Mar41.7 C (107.1 F)1.1 C (34.0 F)n/an/a
Apr41.7 C (107.1 F)5.0 C (41.0 F)n/an/a
May43.9 C (111.0 F)9.4 C (48.9 F)n/an/a
Jun44.4 C (111.9 F)10.6 C (51.1 F)n/an/a
Jul45.0 C (113.0 F)15.0 C (59.0 F)n/an/a
Aug41.1 C (106.0 F)15.0 C (59.0 F)n/an/a
Sep42.8 C (109.0 F)15.6 C (60.1 F)n/an/a
Oct40.6 C (105.1 F)10.0 C (50.0 F)n/an/a
Nov40.0 C (104.0 F)1.7 C (35.1 F)n/an/a
Dec36.7 C (98.1 F)1.1 C (34.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Pericos by the year they were set 1,464 records at Pericos still stand. 1965 holds the most, with 67. 0204060801961: 101962: 651963: 561964: 651965: 671966: 451967: 491968: 461969: 551971: 481972: 271973: 301974: 261975: 431976: 351977: 281978: 321979: 591980: 441981: 341982: 291983: 281984: 241985: 191986: 311987: 241988: 181989: 251990: 361991: 151992: 161993: 361994: 131995: 161996: 81997: 231998: 121999: 152000: 252001: 172002: 192003: 122004: 162005: 272006: 192007: 292008: 262009: 221961196619721977198219871992199720022007
1,464 records at Pericos still stand. 1965 holds the most, with 67.
Standing records at Pericos by the year they were set
Year setStanding records
196110
196265
196356
196465
196567
196645
196749
196846
196955
197148
197227
197330
197426
197543
197635
197728
197832
197959
198044
198134
198229
198328
198424
198519
198631
198724
198818
198925
199036
199115
199216
199336
199413
199516
19968
199723
199812
199915
200025
200117
200219
200312
200416
200527
200619
200729
200826
200922

Wettest Day of Each Month

Oct: 322.8 mm (12.7 in)
Record daily precipitation for each month at Pericos The wettest day on record for each calendar month at Pericos. The most was 322.8 mm (12.7 in) on 7 October 1981. 0100200300400 Jan: 74.2 mm (2.9 in), 24 January 1979 Jan Feb: 66.8 mm (2.6 in), 9 February 1968 Feb Mar: 16.5 mm (0.6 in), 3 March 1968 Mar Apr: 59.9 mm (2.4 in), 3 April 1997 Apr May: 14.0 mm (0.6 in), 30 May 1972 May Jun: 57.9 mm (2.3 in), 27 June 2000 Jun Jul: 130.8 mm (5.1 in), 25 July 1985 Jul Aug: 111.8 mm (4.4 in), 7 August 1984 Aug Sep: 224.8 mm (8.9 in), 2 September 1998 Sep Oct: 322.8 mm (12.7 in), 7 October 1981 Oct Nov: 64.3 mm (2.5 in), 25 November 1982 Nov Dec: 89.9 mm (3.5 in), 18 December 1987 Dec
The wettest day on record for each calendar month at Pericos. The most was 322.8 mm (12.7 in) on 7 October 1981.
Record daily precipitation for each month at Pericos
MonthRecord daily precipitation (mm)Date
Jan74.2 mm (2.9 in)24 January 1979
Feb66.8 mm (2.6 in)9 February 1968
Mar16.5 mm (0.6 in)3 March 1968
Apr59.9 mm (2.4 in)3 April 1997
May14.0 mm (0.6 in)30 May 1972
Jun57.9 mm (2.3 in)27 June 2000
Jul130.8 mm (5.1 in)25 July 1985
Aug111.8 mm (4.4 in)7 August 1984
Sep224.8 mm (8.9 in)2 September 1998
Oct322.8 mm (12.7 in)7 October 1981
Nov64.3 mm (2.5 in)25 November 1982
Dec89.9 mm (3.5 in)18 December 1987

Period of Record Coverage

1961 to 2009
Days with data per year at Pericos 48 years of record at Pericos, 1961 to 2009. 11 years have data for under 90 percent of days and are left out of rankings: 1961, 1973, 1974, 1986, 1987, 1989, 1990, 1991 and others. 1961: 61 of 365 days1962: 364 of 365 days1963: 362 of 365 days1964: 366 of 366 days1965: 347 of 365 days1966: 365 of 365 days1967: 364 of 365 days1968: 365 of 366 days1969: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 120 of 365 days1974: 244 of 365 days1975: 365 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 354 of 365 days1979: 363 of 365 days1980: 365 of 366 days1981: 364 of 365 days1982: 347 of 365 days1983: 337 of 365 days1984: 337 of 366 days1985: 337 of 365 days1986: 305 of 365 days1987: 259 of 365 days1988: 335 of 366 days1989: 289 of 365 days1990: 315 of 365 days1991: 304 of 365 days1992: 305 of 366 days1993: 335 of 365 days1994: 304 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 362 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 364 of 365 days2004: 349 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 333 of 365 days2008: 361 of 366 days2009: 241 of 365 days198019902000
48 years of record at Pericos, 1961 to 2009. 11 years have data for under 90 percent of days and are left out of rankings: 1961, 1973, 1974, 1986, 1987, 1989, 1990, 1991 and others.
Days with data per year at Pericos
YearDays with dataShare of yearComplete
19616117%No
1962364100%Yes
196336299%Yes
1964366100%Yes
196534795%Yes
1966365100%Yes
1967364100%Yes
1968365100%Yes
1969365100%Yes
1971365100%Yes
1972366100%Yes
197312033%No
197424467%No
1975365100%Yes
1976365100%Yes
1977365100%Yes
197835497%Yes
197936399%Yes
1980365100%Yes
1981364100%Yes
198234795%Yes
198333792%Yes
198433792%Yes
198533792%Yes
198630584%No
198725971%No
198833592%Yes
198928979%No
199031586%No
199130483%No
199230583%No
199333592%Yes
199430483%No
1995365100%Yes
1996366100%Yes
1997365100%Yes
199836299%Yes
1999365100%Yes
2000365100%Yes
2001365100%Yes
2002365100%Yes
2003364100%Yes
200434995%Yes
2005365100%Yes
2006365100%Yes
200733391%Yes
200836199%Yes
200924166%No

Latest Records

20
Latest records at Pericos
DateStationRecordValueBeat old record byOld record stoodSignificance
23 August 2009Pericos, MXdaily low max27.8 C (82.0 F)2.2 C (4.0 F)16 years18 of 100 (Routine)
23 August 2009Pericos, MXdaily rain50.8 mm (2.0 in)1.0 mm (0.04 in)20 years10 of 100 (Routine)
21 August 2009Pericos, MXdaily rain53.3 mm (2.1 in)12.4 mm (0.5 in)27 years19 of 100 (Routine)
6 August 2009Pericos, MXdaily high min28.3 C (82.9 F)1.6 C (2.9 F)47 years28 of 100 (Routine)
5 August 2009Pericos, MXdaily high max39.4 C (102.9 F)0.5 C (0.9 F)47 years20 of 100 (Routine)
14 July 2009Pericos, MXdaily low min21.1 C (70.0 F)0.6 C (1.1 F)40 years19 of 100 (Routine)
11 July 2009Pericos, MXdaily rain31.5 mm (1.2 in)9.7 mm (0.38 in)26 years16 of 100 (Routine)
6 July 2009Pericos, MXdaily low min (Tie)21.7 C (71.1 F)tie34 years3 of 100 (Routine)
30 June 2009Pericos, MXdaily low max33.3 C (91.9 F)1.7 C (3.1 F)24 years18 of 100 (Routine)
29 June 2009Pericos, MXdaily low max (Tie)33.9 C (93.0 F)tie32 years3 of 100 (Routine)
28 June 2009Pericos, MXdaily low max31.7 C (89.1 F)2.2 C (4.0 F)38 years24 of 100 (Routine)
27 June 2009Pericos, MXdaily low max31.1 C (88.0 F)2.8 C (5.0 F)47 years30 of 100 (Routine)
26 June 2009Pericos, MXdaily low max (Tie)35.0 C (95.0 F)tie47 years4 of 100 (Routine)
25 June 2009Pericos, MXdaily low max30.6 C (87.1 F)1.6 C (2.9 F)43 years23 of 100 (Routine)
24 June 2009Pericos, MXdaily low max31.7 C (89.1 F)1.6 C (2.9 F)42 years23 of 100 (Routine)
18 June 2009Pericos, MXdaily rain39.9 mm (1.6 in)2.1 mm (0.08 in)12 years8 of 100 (Routine)
13 June 2009Pericos, MXdaily high max41.7 C (107.1 F)1.7 C (3.1 F)31 years20 of 100 (Routine)
5 June 2009Pericos, MXdaily high max (Tie)40.6 C (105.1 F)tie44 years4 of 100 (Routine)
28 May 2009Pericos, MXdaily low min (Tie)15.0 C (59.0 F)tie47 years4 of 100 (Routine)
20 May 2009Pericos, MXdaily high min24.4 C (75.9 F)1.6 C (2.9 F)6 years10 of 100 (Routine)

Climate Trend

28 complete years, 1962 to 2008
Annual mean temperature at Pericos as warming stripes, 1962 to 2008 One stripe for each of 28 complete years at Pericos, 1962 to 2008. Blue stripes are years cooler than the station's own mean of 24.8 C (76.6 F); red stripes are warmer. The coolest year was 1975, at 24.0 C (75.1 F), and the warmest was 1996, at 25.8 C (78.5 F). The strongest colour marks a difference of 1.1 C (2.0 F). 1962: 25.3 C, +0.5 C from the station mean1963: 25.4 C, +0.6 C from the station mean1964: 24.7 C, -0.1 C from the station mean1966: 25.2 C, +0.4 C from the station mean1967: 25.0 C, +0.2 C from the station mean1968: 24.6 C, -0.2 C from the station mean1969: 24.7 C, -0.1 C from the station mean1971: 24.2 C, -0.6 C from the station mean1972: 24.9 C, +0.1 C from the station mean1975: 24.0 C, -0.8 C from the station mean1976: 24.4 C, -0.4 C from the station mean1977: 25.0 C, +0.2 C from the station mean1978: 25.0 C, +0.2 C from the station mean1979: 24.5 C, -0.3 C from the station mean1980: 25.2 C, +0.4 C from the station mean1981: 24.9 C, +0.1 C from the station mean1995: 24.6 C, -0.2 C from the station mean1996: 25.8 C, +1.0 C from the station mean1997: 24.4 C, -0.4 C from the station mean1998: 24.4 C, -0.4 C from the station mean1999: 24.6 C, -0.2 C from the station mean2000: 24.4 C, -0.4 C from the station mean2001: 24.5 C, -0.3 C from the station mean2002: 25.0 C, +0.2 C from the station mean2003: 25.1 C, +0.3 C from the station mean2005: 25.1 C, +0.3 C from the station mean2006: 25.1 C, +0.3 C from the station mean2008: 24.2 C, -0.6 C from the station mean1962196519701975198019851990199520002005
One stripe for each of 28 complete years at Pericos, 1962 to 2008. Blue stripes are years cooler than the station's own mean of 24.8 C (76.6 F); red stripes are warmer. The coolest year was 1975, at 24.0 C (75.1 F), and the warmest was 1996, at 25.8 C (78.5 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Pericos as warming stripes, 1962 to 2008
YearAnnual mean temperatureDifference from the station mean
196225.3 C+0.50 C
196325.4 C+0.57 C
196424.7 C-0.10 C
196625.2 C+0.38 C
196725.0 C+0.23 C
196824.6 C-0.20 C
196924.7 C-0.07 C
197124.2 C-0.56 C
197224.9 C+0.11 C
197524.0 C-0.82 C
197624.4 C-0.42 C
197725.0 C+0.23 C
197825.0 C+0.21 C
197924.5 C-0.30 C
198025.2 C+0.39 C
198124.9 C+0.11 C
199524.6 C-0.21 C
199625.8 C+1.02 C
199724.4 C-0.38 C
199824.4 C-0.36 C
199924.6 C-0.19 C
200024.4 C-0.38 C
200124.5 C-0.29 C
200225.0 C+0.24 C
200325.1 C+0.32 C
200525.1 C+0.33 C
200625.1 C+0.31 C
200824.2 C-0.58 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1961 to 2009
Yearly extremes at Pericos: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)196940.6 C (105.1 F)48
Coldest night (TNn)1.1 C (34.0 F)19733.9 C (39.0 F)48
Wettest day (Rx1day)322.8 mm (12.7 in)198179.8 mm (3.1 in)49
Wettest five days (Rx5day)448.5 mm (17.7 in)1981121.9 mm (4.8 in)49
Longest dry spell (CDD)188 days198097 days49

Hottest day (TXx)

Hottest day (TXx) at Pericos by year The hottest day of the year at Pericos, 1961 to 2009. The record is 45.0 C (113.0 F) in 1969, marked on the chart; the median year is 40.6 C (105.1 F). 3537.54042.5451970198019902000Record: 45.0 C (113.0 F) in 1969
The hottest day of the year at Pericos, 1961 to 2009. The record is 45.0 C (113.0 F) in 1969, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Pericos by year
YearHottest day (TXx)
196135.0 C (95.0 F)
196243.9 C (111.0 F)
196343.9 C (111.0 F)
196441.1 C (106.0 F)
196543.3 C (109.9 F)
196641.1 C (106.0 F)
196742.8 C (109.0 F)
196839.4 C (102.9 F)
196945.0 C (113.0 F)
1970n/a
197141.7 C (107.1 F)
197240.6 C (105.1 F)
197335.6 C (96.1 F)
197440.0 C (104.0 F)
197540.0 C (104.0 F)
197641.1 C (106.0 F)
197740.0 C (104.0 F)
197841.7 C (107.1 F)
197944.4 C (111.9 F)
198043.3 C (109.9 F)
198141.1 C (106.0 F)
198242.8 C (109.0 F)
198341.1 C (106.0 F)
198441.7 C (107.1 F)
198540.6 C (105.1 F)
198640.0 C (104.0 F)
198740.6 C (105.1 F)
198840.0 C (104.0 F)
198940.6 C (105.1 F)
199040.6 C (105.1 F)
199138.9 C (102.0 F)
199240.6 C (105.1 F)
199340.6 C (105.1 F)
199440.6 C (105.1 F)
199539.4 C (102.9 F)
199640.0 C (104.0 F)
199739.4 C (102.9 F)
199841.7 C (107.1 F)
199942.2 C (108.0 F)
200040.0 C (104.0 F)
200139.4 C (102.9 F)
200240.6 C (105.1 F)
200339.4 C (102.9 F)
200439.4 C (102.9 F)
200540.0 C (104.0 F)
200641.1 C (106.0 F)
200740.6 C (105.1 F)
200840.0 C (104.0 F)
200941.7 C (107.1 F)

Coldest night (TNn)

Coldest night (TNn) at Pericos by year The coldest night of the year at Pericos, 1961 to 2009. The record is 1.1 C (34.0 F) in 1973, marked on the chart; the median year is 3.9 C (39.0 F). 024681970198019902000Record: 1.1 C (34.0 F) in 1973
The coldest night of the year at Pericos, 1961 to 2009. The record is 1.1 C (34.0 F) in 1973, marked on the chart; the median year is 3.9 C (39.0 F).
Coldest night (TNn) at Pericos by year
YearColdest night (TNn)
19616.7 C (44.1 F)
19625.0 C (41.0 F)
19632.8 C (37.0 F)
19643.3 C (37.9 F)
19652.2 C (36.0 F)
19662.2 C (36.0 F)
19672.2 C (36.0 F)
19685.0 C (41.0 F)
19692.2 C (36.0 F)
1970n/a
19712.2 C (36.0 F)
19725.0 C (41.0 F)
19731.1 C (34.0 F)
19743.9 C (39.0 F)
19752.2 C (36.0 F)
19764.4 C (39.9 F)
19773.3 C (37.9 F)
19783.9 C (39.0 F)
19791.7 C (35.1 F)
19805.0 C (41.0 F)
19816.7 C (44.1 F)
19823.9 C (39.0 F)
19835.0 C (41.0 F)
19841.1 C (34.0 F)
19855.0 C (41.0 F)
19866.7 C (44.1 F)
19876.7 C (44.1 F)
19885.0 C (41.0 F)
19893.9 C (39.0 F)
19905.0 C (41.0 F)
19917.8 C (46.0 F)
19927.8 C (46.0 F)
19935.6 C (42.1 F)
19944.4 C (39.9 F)
19955.6 C (42.1 F)
19967.8 C (46.0 F)
19972.2 C (36.0 F)
19981.7 C (35.1 F)
19992.8 C (37.0 F)
20003.3 C (37.9 F)
20013.9 C (39.0 F)
20023.9 C (39.0 F)
20033.9 C (39.0 F)
20044.4 C (39.9 F)
20057.2 C (45.0 F)
20061.1 C (34.0 F)
20072.2 C (36.0 F)
20081.1 C (34.0 F)
20094.4 C (39.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Pericos by year The wettest day of the year at Pericos, 1961 to 2009. The record is 322.8 mm (12.7 in) in 1981, marked on the chart; the median year is 79.8 mm (3.1 in). 01002003004001970198019902000Record: 322.8 mm (12.7 in) in 1981
The wettest day of the year at Pericos, 1961 to 2009. The record is 322.8 mm (12.7 in) in 1981, marked on the chart; the median year is 79.8 mm (3.1 in).
Wettest day (Rx1day) at Pericos by year
YearWettest day (Rx1day)
19615.8 mm (0.23 in)
196258.9 mm (2.3 in)
1963110.0 mm (4.3 in)
196440.9 mm (1.6 in)
196553.8 mm (2.1 in)
196679.0 mm (3.1 in)
196738.4 mm (1.5 in)
196866.8 mm (2.6 in)
196962.2 mm (2.4 in)
197084.3 mm (3.3 in)
1971106.2 mm (4.2 in)
197268.3 mm (2.7 in)
197384.3 mm (3.3 in)
197471.4 mm (2.8 in)
197592.2 mm (3.6 in)
1976121.9 mm (4.8 in)
197757.4 mm (2.3 in)
1978111.0 mm (4.4 in)
197974.2 mm (2.9 in)
1980102.4 mm (4.0 in)
1981322.8 mm (12.7 in)
1982167.9 mm (6.6 in)
198338.9 mm (1.5 in)
1984111.8 mm (4.4 in)
1985130.8 mm (5.1 in)
198673.9 mm (2.9 in)
198789.9 mm (3.5 in)
198863.5 mm (2.5 in)
198989.9 mm (3.5 in)
199079.8 mm (3.1 in)
199179.8 mm (3.1 in)
199257.9 mm (2.3 in)
1993116.8 mm (4.6 in)
199471.9 mm (2.8 in)
199574.9 mm (2.9 in)
199690.4 mm (3.6 in)
199759.9 mm (2.4 in)
1998224.8 mm (8.9 in)
199971.4 mm (2.8 in)
200071.9 mm (2.8 in)
200143.9 mm (1.7 in)
200289.9 mm (3.5 in)
2003128.8 mm (5.1 in)
200480.8 mm (3.2 in)
200553.8 mm (2.1 in)
2006199.9 mm (7.9 in)
2007128.8 mm (5.1 in)
200881.8 mm (3.2 in)
200971.4 mm (2.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Pericos by year The wettest five days of the year at Pericos, 1961 to 2009. The record is 448.5 mm (17.7 in) in 1981, marked on the chart; the median year is 121.9 mm (4.8 in). 02004006001970198019902000Record: 448.5 mm (17.7 in) in 1981
The wettest five days of the year at Pericos, 1961 to 2009. The record is 448.5 mm (17.7 in) in 1981, marked on the chart; the median year is 121.9 mm (4.8 in).
Wettest five days (Rx5day) at Pericos by year
YearWettest five days (Rx5day)
196111.4 mm (0.4 in)
196268.6 mm (2.7 in)
1963177.6 mm (7.0 in)
196465.8 mm (2.6 in)
196569.8 mm (2.7 in)
196687.4 mm (3.4 in)
196772.7 mm (2.9 in)
196896.2 mm (3.8 in)
196995.2 mm (3.7 in)
197084.3 mm (3.3 in)
1971112.6 mm (4.4 in)
1972112.6 mm (4.4 in)
197384.3 mm (3.3 in)
1974151.4 mm (6.0 in)
1975166.0 mm (6.5 in)
1976121.9 mm (4.8 in)
197796.8 mm (3.8 in)
1978111.0 mm (4.4 in)
1979122.8 mm (4.8 in)
1980125.0 mm (4.9 in)
1981448.5 mm (17.7 in)
1982285.3 mm (11.2 in)
198389.8 mm (3.5 in)
1984174.3 mm (6.9 in)
1985151.4 mm (6.0 in)
1986145.8 mm (5.7 in)
1987162.2 mm (6.4 in)
1988108.4 mm (4.3 in)
1989166.9 mm (6.6 in)
1990121.6 mm (4.8 in)
1991165.9 mm (6.5 in)
1992125.5 mm (4.9 in)
1993121.4 mm (4.8 in)
1994155.5 mm (6.1 in)
1995144.2 mm (5.7 in)
1996105.9 mm (4.2 in)
199790.2 mm (3.6 in)
1998273.1 mm (10.8 in)
199991.0 mm (3.6 in)
2000128.1 mm (5.0 in)
200186.8 mm (3.4 in)
2002157.7 mm (6.2 in)
2003131.6 mm (5.2 in)
2004171.0 mm (6.7 in)
200567.3 mm (2.6 in)
2006223.8 mm (8.8 in)
2007128.8 mm (5.1 in)
2008151.7 mm (6.0 in)
2009116.5 mm (4.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Pericos by year The longest dry spell of the year at Pericos, 1961 to 2009. The record is 188 days in 1980, marked on the chart; the median year is 97 days. 0501001502001970198019902000Record: 188 days in 1980
The longest dry spell of the year at Pericos, 1961 to 2009. The record is 188 days in 1980, marked on the chart; the median year is 97 days.
Longest dry spell (CDD) at Pericos by year
YearLongest dry spell (CDD)
196129 days
1962146 days
196387 days
196497 days
196584 days
196682 days
1967161 days
196865 days
1969141 days
1970172 days
1971115 days
197290 days
1973120 days
1974148 days
1975150 days
1976164 days
197790 days
197883 days
1979103 days
1980188 days
198184 days
1982129 days
198335 days
198468 days
198583 days
198684 days
198758 days
1988121 days
198939 days
199075 days
199192 days
1992152 days
199360 days
199494 days
1995138 days
1996180 days
199761 days
199895 days
1999170 days
200099 days
2001106 days
2002147 days
2003130 days
200447 days
2005125 days
200693 days
200759 days
2008184 days
2009159 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

38 years, 1962 to 2008

A day with at least 80.7 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 330.8 mm (13.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Pericos: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years80.7 mm (3.2 in)
5 years122.7 mm (4.8 in)
10 years158.4 mm (6.2 in)
25 years215.2 mm (8.5 in)
50 years267.8 mm (10.5 in)Longer than the 38 years of record
100 years330.8 mm (13.0 in)Longer than the 38 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, 38 years of values from 1962 to 2008.

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: 322.8 mm (12.7 in) in 1981; 224.8 mm (8.9 in) in 1998; 199.9 mm (7.9 in) in 2006.

Download the Data

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