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San Pedro Chenalho (Dge) Weather Records (MXN00007149)

Record envelope, standing records and threshold days for San Pedro Chenalho (Dge) (MXN00007149), Mexico, with 44 years of record.

Key Facts for San Pedro Chenalho (Dge)

  • San Pedro Chenalho (Dge) (MXN00007149) is a weather station in Mexico at 16.88 latitude and -92.62 longitude, 1,537 m (5,042 ft) above sea level.
  • The station reports from 1966 to 2009, 44 years of record.
  • 1,464 records set at San Pedro Chenalho (Dge) still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San Pedro Chenalho (Dge) tied a daily record low minimum temperature of 8.9 C (48.0 F) on 29 June 2009.

About the Station

  • Location: Mexico, 16.88 latitude, -92.62 longitude.
  • Elevation: 1,537 m (5,042 ft).
  • Period of record: 1966 to 2009, 44 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 Pedro Chenalho (Dge), with 2026 drawn through them The band shows the record high and record low for each calendar day at San Pedro Chenalho (Dge). 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 San Pedro Chenalho (Dge). 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 Pedro Chenalho (Dge), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan31.7 C (89.1 F)-3.3 C (26.1 F)n/an/a
Feb33.9 C (93.0 F)0.6 C (33.1 F)n/an/a
Mar36.1 C (97.0 F)1.1 C (34.0 F)n/an/a
Apr37.8 C (100.0 F)2.8 C (37.0 F)n/an/a
May37.8 C (100.0 F)5.0 C (41.0 F)n/an/a
Jun36.1 C (97.0 F)5.0 C (41.0 F)n/an/a
Jul30.0 C (86.0 F)7.8 C (46.0 F)n/an/a
Aug31.7 C (89.1 F)6.7 C (44.1 F)n/an/a
Sep32.8 C (91.0 F)5.6 C (42.1 F)n/an/a
Oct30.6 C (87.1 F)3.3 C (37.9 F)n/an/a
Nov30.6 C (87.1 F)1.1 C (34.0 F)n/an/a
Dec30.6 C (87.1 F)-3.3 C (26.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San Pedro Chenalho (Dge) by the year they were set 1,464 records at San Pedro Chenalho (Dge) still stand. 2008 holds the most, with 156. 0501001502001969: 141970: 421971: 381972: 271973: 511974: 391975: 161976: 261977: 241978: 391979: 391980: 711981: 471982: 241983: 181984: 331985: 131986: 231987: 261988: 181989: 241990: 151991: 111992: 81993: 131994: 401995: 711996: 791997: 191998: 641999: 252000: 172001: 212002: 152004: 82005: 622006: 42007: 1182008: 1562009: 661969197319771981198519891993199720012006
1,464 records at San Pedro Chenalho (Dge) still stand. 2008 holds the most, with 156.
Standing records at San Pedro Chenalho (Dge) by the year they were set
Year setStanding records
196914
197042
197138
197227
197351
197439
197516
197626
197724
197839
197939
198071
198147
198224
198318
198433
198513
198623
198726
198818
198924
199015
199111
19928
199313
199440
199571
199679
199719
199864
199925
200017
200121
200215
20048
200562
20064
2007118
2008156
200966

All-Time Record Progression

3 new records
When San Pedro Chenalho (Dge) set new all-time records 3 all-time records were set at San Pedro Chenalho (Dge) between 25 May 2005 and 27 October 2007. Each dot is a new record. Record high maximum temperatureRecord daily precipitation25 May 2005: Record high maximum temperature 37.8 C (100.0 F)11 October 2007: Record daily precipitation 108.2 mm (4.3 in)27 October 2007: Record daily precipitation 124.0 mm (4.9 in)2005
3 all-time records were set at San Pedro Chenalho (Dge) between 25 May 2005 and 27 October 2007. Each dot is a new record.
When San Pedro Chenalho (Dge) set new all-time records
DateKindDetail
2005-05-25Record high maximum temperatureRecord high maximum temperature 37.8 C (100.0 F)
2007-10-11Record daily precipitationRecord daily precipitation 108.2 mm (4.3 in)
2007-10-27Record daily precipitationRecord daily precipitation 124.0 mm (4.9 in)

Wettest Day of Each Month

Oct: 124.0 mm (4.9 in)
Record daily precipitation for each month at San Pedro Chenalho (Dge) The wettest day on record for each calendar month at San Pedro Chenalho (Dge). The most was 124.0 mm (4.9 in) on 27 October 2007. 050100150 Jan: 64.8 mm (2.6 in), 1 January 2007 Jan Feb: 74.9 mm (2.9 in), 4 February 1990 Feb Mar: 42.9 mm (1.7 in), 13 March 1995 Mar Apr: 48.3 mm (1.9 in), 21 April 1982 Apr May: 71.4 mm (2.8 in), 25 May 1978 May Jun: 82.6 mm (3.3 in), 16 June 1987 Jun Jul: 99.6 mm (3.9 in), 12 July 1983 Jul Aug: 87.4 mm (3.4 in), 3 August 1970 Aug Sep: 99.6 mm (3.9 in), 19 September 1974 Sep Oct: 124.0 mm (4.9 in), 27 October 2007 Oct Nov: 90.4 mm (3.6 in), 9 November 1971 Nov Dec: 75.4 mm (3.0 in), 22 December 1967 Dec
The wettest day on record for each calendar month at San Pedro Chenalho (Dge). The most was 124.0 mm (4.9 in) on 27 October 2007.
Record daily precipitation for each month at San Pedro Chenalho (Dge)
MonthRecord daily precipitation (mm)Date
Jan64.8 mm (2.6 in)1 January 2007
Feb74.9 mm (2.9 in)4 February 1990
Mar42.9 mm (1.7 in)13 March 1995
Apr48.3 mm (1.9 in)21 April 1982
May71.4 mm (2.8 in)25 May 1978
Jun82.6 mm (3.3 in)16 June 1987
Jul99.6 mm (3.9 in)12 July 1983
Aug87.4 mm (3.4 in)3 August 1970
Sep99.6 mm (3.9 in)19 September 1974
Oct124.0 mm (4.9 in)27 October 2007
Nov90.4 mm (3.6 in)9 November 1971
Dec75.4 mm (3.0 in)22 December 1967

Period of Record Coverage

1969 to 2009
Days with data per year at San Pedro Chenalho (Dge) 40 years of record at San Pedro Chenalho (Dge), 1969 to 2009. 10 years have data for under 90 percent of days and are left out of rankings: 1969, 1997, 1998, 1999, 2000, 2004, 2005, 2006 and others. 1969: 91 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 364 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 363 of 365 days1978: 363 of 365 days1979: 363 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 365 of 366 days1985: 365 of 365 days1986: 361 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 335 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 335 of 366 days1997: 318 of 365 days1998: 291 of 365 days1999: 233 of 365 days2000: 272 of 366 days2001: 364 of 365 days2002: 360 of 365 days2004: 324 of 366 days2005: 263 of 365 days2006: 43 of 365 days2007: 258 of 365 days2008: 348 of 366 days2009: 180 of 365 days19701975198019851990199520002005
40 years of record at San Pedro Chenalho (Dge), 1969 to 2009. 10 years have data for under 90 percent of days and are left out of rankings: 1969, 1997, 1998, 1999, 2000, 2004, 2005, 2006 and others.
Days with data per year at San Pedro Chenalho (Dge)
YearDays with dataShare of yearComplete
19699125%No
1970365100%Yes
1971365100%Yes
1972365100%Yes
1973364100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
197736399%Yes
197836399%Yes
197936399%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984365100%Yes
1985365100%Yes
198636199%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
199333592%Yes
1994365100%Yes
1995365100%Yes
199633592%Yes
199731887%No
199829180%No
199923364%No
200027274%No
2001364100%Yes
200236099%Yes
200432489%No
200526372%No
20064312%No
200725871%No
200834895%Yes
200918049%No

Latest Records

20
Latest records at San Pedro Chenalho (Dge)
DateStationRecordValueBeat old record byOld record stoodSignificance
29 June 2009San Pedro Chenalho (Dge), MXdaily low min (Tie)8.9 C (48.0 F)tie14 years2 of 100 (Routine)
28 June 2009San Pedro Chenalho (Dge), MXdaily low min7.8 C (46.0 F)1.6 C (2.9 F)34 years22 of 100 (Routine)
27 June 2009San Pedro Chenalho (Dge), MXdaily low min6.7 C (44.1 F)3.3 C (5.9 F)38 years31 of 100 (Routine)
26 June 2009San Pedro Chenalho (Dge), MXdaily low min (Tie)8.9 C (48.0 F)tie12 years1 of 100 (Routine)
25 June 2009San Pedro Chenalho (Dge), MXdaily low min7.8 C (46.0 F)1.1 C (2.0 F)14 years13 of 100 (Routine)
24 June 2009San Pedro Chenalho (Dge), MXdaily low min (Tie)10.0 C (50.0 F)tie36 years3 of 100 (Routine)
23 June 2009San Pedro Chenalho (Dge), MXdaily low max18.9 C (66.0 F)0.5 C (0.9 F)14 years9 of 100 (Routine)
22 June 2009San Pedro Chenalho (Dge), MXdaily low min7.8 C (46.0 F)2.2 C (4.0 F)38 years26 of 100 (Routine)
22 June 2009San Pedro Chenalho (Dge), MXdaily low max17.8 C (64.0 F)2.2 C (4.0 F)39 years23 of 100 (Routine)
21 June 2009San Pedro Chenalho (Dge), MXdaily low min6.7 C (44.1 F)3.3 C (5.9 F)0 years20 of 100 (Routine)
20 June 2009San Pedro Chenalho (Dge), MXmonthly low min5.0 C (41.0 F)0.6 C (1.1 F)0 years17 of 100 (Routine)
19 June 2009San Pedro Chenalho (Dge), MXdaily low min7.8 C (46.0 F)2.2 C (4.0 F)38 years26 of 100 (Routine)
19 June 2009San Pedro Chenalho (Dge), MXdaily low max20.0 C (68.0 F)0.6 C (1.1 F)16 years10 of 100 (Routine)
18 June 2009San Pedro Chenalho (Dge), MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)39 years20 of 100 (Routine)
17 June 2009San Pedro Chenalho (Dge), MXdaily low min6.7 C (44.1 F)3.3 C (5.9 F)18 years25 of 100 (Routine)
16 June 2009San Pedro Chenalho (Dge), MXmonthly low min (Tie)5.6 C (42.1 F)tie0 years3 of 100 (Routine)
15 June 2009San Pedro Chenalho (Dge), MXdaily low min7.8 C (46.0 F)2.2 C (4.0 F)39 years26 of 100 (Routine)
14 June 2009San Pedro Chenalho (Dge), MXmonthly low min (Tie)5.6 C (42.1 F)tie0 years3 of 100 (Routine)
13 June 2009San Pedro Chenalho (Dge), MXdaily low min6.7 C (44.1 F)3.3 C (5.9 F)16 years24 of 100 (Routine)
12 June 2009San Pedro Chenalho (Dge), MXdaily low min8.9 C (48.0 F)1.1 C (2.0 F)16 years13 of 100 (Routine)

Climate Trend

28 complete years, 1970 to 2008
Annual mean temperature at San Pedro Chenalho (Dge) as warming stripes, 1970 to 2008 One stripe for each of 28 complete years at San Pedro Chenalho (Dge), 1970 to 2008. Blue stripes are years cooler than the station's own mean of 17.2 C (62.9 F); red stripes are warmer. The coolest year was 1995, at 14.6 C (58.3 F), and the warmest was 2008, at 18.7 C (65.7 F). The strongest colour marks a difference of 2.6 C (4.7 F). 1970: 17.7 C, +0.5 C from the station mean1971: 17.4 C, +0.2 C from the station mean1972: 18.1 C, +0.9 C from the station mean1973: 17.6 C, +0.4 C from the station mean1974: 16.8 C, -0.4 C from the station mean1975: 17.4 C, +0.2 C from the station mean1976: 17.1 C, -0.1 C from the station mean1977: 17.6 C, +0.4 C from the station mean1978: 18.0 C, +0.8 C from the station mean1979: 17.8 C, +0.7 C from the station mean1980: 18.2 C, +1.0 C from the station mean1981: 18.0 C, +0.9 C from the station mean1982: 17.5 C, +0.3 C from the station mean1983: 17.6 C, +0.5 C from the station mean1984: 16.9 C, -0.3 C from the station mean1985: 16.7 C, -0.5 C from the station mean1986: 16.6 C, -0.6 C from the station mean1987: 17.2 C, 0.0 C from the station mean1988: 17.0 C, -0.1 C from the station mean1989: 16.4 C, -0.8 C from the station mean1990: 16.6 C, -0.5 C from the station mean1991: 17.0 C, -0.2 C from the station mean1994: 15.0 C, -2.1 C from the station mean1995: 14.6 C, -2.5 C from the station mean2001: 17.1 C, 0.0 C from the station mean2002: 17.3 C, +0.1 C from the station mean2004: 16.8 C, -0.3 C from the station mean2008: 18.7 C, +1.5 C from the station mean19701975198019851990199520002005
One stripe for each of 28 complete years at San Pedro Chenalho (Dge), 1970 to 2008. Blue stripes are years cooler than the station's own mean of 17.2 C (62.9 F); red stripes are warmer. The coolest year was 1995, at 14.6 C (58.3 F), and the warmest was 2008, at 18.7 C (65.7 F). The strongest colour marks a difference of 2.6 C (4.7 F).
Annual mean temperature at San Pedro Chenalho (Dge) as warming stripes, 1970 to 2008
YearAnnual mean temperatureDifference from the station mean
197017.7 C+0.52 C
197117.4 C+0.19 C
197218.1 C+0.88 C
197317.6 C+0.38 C
197416.8 C-0.38 C
197517.4 C+0.21 C
197617.1 C-0.09 C
197717.6 C+0.38 C
197818.0 C+0.84 C
197917.8 C+0.66 C
198018.2 C+1.04 C
198118.0 C+0.85 C
198217.5 C+0.31 C
198317.6 C+0.46 C
198416.9 C-0.27 C
198516.7 C-0.47 C
198616.6 C-0.57 C
198717.2 C+0.00 C
198817.0 C-0.13 C
198916.4 C-0.76 C
199016.6 C-0.53 C
199117.0 C-0.18 C
199415.0 C-2.13 C
199514.6 C-2.54 C
200117.1 C-0.04 C
200217.3 C+0.09 C
200416.8 C-0.35 C
200818.7 C+1.54 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

1966 to 2009
Yearly extremes at San Pedro Chenalho (Dge): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)200531.7 C (89.1 F)40
Coldest night (TNn)-3.3 C (26.1 F)19732.5 C (36.5 F)40
Wettest day (Rx1day)124.0 mm (4.9 in)200759.9 mm (2.4 in)43
Wettest five days (Rx5day)257.5 mm (10.1 in)1983142.2 mm (5.6 in)43
Longest dry spell (CDD)116 days199822 days43

Hottest day (TXx)

Hottest day (TXx) at San Pedro Chenalho (Dge) by year The hottest day of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 37.8 C (100.0 F) in 2005, marked on the chart; the median year is 31.7 C (89.1 F). 253035401970198019902000Record: 37.8 C (100.0 F) in 2005
The hottest day of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 37.8 C (100.0 F) in 2005, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at San Pedro Chenalho (Dge) by year
YearHottest day (TXx)
1966n/a
1967n/a
1968n/a
196928.9 C (84.0 F)
197033.3 C (91.9 F)
197133.3 C (91.9 F)
197232.2 C (90.0 F)
197337.2 C (99.0 F)
197435.0 C (95.0 F)
197531.1 C (88.0 F)
197630.0 C (86.0 F)
197733.3 C (91.9 F)
197833.3 C (91.9 F)
197931.7 C (89.1 F)
198032.2 C (90.0 F)
198130.0 C (86.0 F)
198230.0 C (86.0 F)
198332.2 C (90.0 F)
198431.1 C (88.0 F)
198530.0 C (86.0 F)
198631.1 C (88.0 F)
198731.7 C (89.1 F)
198832.8 C (91.0 F)
198930.0 C (86.0 F)
199030.0 C (86.0 F)
199135.0 C (95.0 F)
199229.4 C (84.9 F)
199328.9 C (84.0 F)
199430.0 C (86.0 F)
199528.3 C (82.9 F)
199627.8 C (82.0 F)
199729.4 C (84.9 F)
199835.6 C (96.1 F)
199931.7 C (89.1 F)
200032.8 C (91.0 F)
200132.2 C (90.0 F)
200235.0 C (95.0 F)
200430.0 C (86.0 F)
200537.8 C (100.0 F)
200625.6 C (78.1 F)
200737.8 C (100.0 F)
200835.0 C (95.0 F)
200931.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at San Pedro Chenalho (Dge) by year The coldest night of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is -3.3 C (26.1 F) in 1973, marked on the chart; the median year is 2.5 C (36.5 F). -505101970198019902000Record: -3.3 C (26.1 F) in 1973
The coldest night of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is -3.3 C (26.1 F) in 1973, marked on the chart; the median year is 2.5 C (36.5 F).
Coldest night (TNn) at San Pedro Chenalho (Dge) by year
YearColdest night (TNn)
1966n/a
1967n/a
1968n/a
19693.3 C (37.9 F)
19703.3 C (37.9 F)
19710.6 C (33.1 F)
19720.0 C (32.0 F)
1973-3.3 C (26.1 F)
19741.1 C (34.0 F)
19753.3 C (37.9 F)
19760.6 C (33.1 F)
1977-2.2 C (28.0 F)
19783.3 C (37.9 F)
19793.3 C (37.9 F)
19800.0 C (32.0 F)
19812.8 C (37.0 F)
19822.8 C (37.0 F)
19832.2 C (36.0 F)
19840.6 C (33.1 F)
19851.1 C (34.0 F)
19861.1 C (34.0 F)
1987-3.3 C (26.1 F)
19882.8 C (37.0 F)
19890.6 C (33.1 F)
19905.0 C (41.0 F)
19911.1 C (34.0 F)
19922.2 C (36.0 F)
19933.9 C (39.0 F)
19942.8 C (37.0 F)
19955.0 C (41.0 F)
19960.0 C (32.0 F)
19973.3 C (37.9 F)
19980.0 C (32.0 F)
19990.6 C (33.1 F)
20005.0 C (41.0 F)
20012.8 C (37.0 F)
20021.7 C (35.1 F)
20040.0 C (32.0 F)
20055.0 C (41.0 F)
20063.3 C (37.9 F)
20077.8 C (46.0 F)
20085.0 C (41.0 F)
20095.0 C (41.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San Pedro Chenalho (Dge) by year The wettest day of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 124.0 mm (4.9 in) in 2007, marked on the chart; the median year is 59.9 mm (2.4 in). 0501001501970198019902000Record: 124.0 mm (4.9 in) in 2007
The wettest day of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 124.0 mm (4.9 in) in 2007, marked on the chart; the median year is 59.9 mm (2.4 in).
Wettest day (Rx1day) at San Pedro Chenalho (Dge) by year
YearWettest day (Rx1day)
19668.9 mm (0.35 in)
196786.9 mm (3.4 in)
196847.5 mm (1.9 in)
196958.4 mm (2.3 in)
197087.4 mm (3.4 in)
197190.4 mm (3.6 in)
197255.4 mm (2.2 in)
197369.3 mm (2.7 in)
197499.6 mm (3.9 in)
197581.5 mm (3.2 in)
197642.4 mm (1.7 in)
197762.5 mm (2.5 in)
197891.2 mm (3.6 in)
197959.9 mm (2.4 in)
198068.6 mm (2.7 in)
198148.3 mm (1.9 in)
198249.3 mm (1.9 in)
198399.6 mm (3.9 in)
198470.1 mm (2.8 in)
198550.8 mm (2.0 in)
198664.8 mm (2.6 in)
198782.6 mm (3.3 in)
198862.0 mm (2.4 in)
198968.6 mm (2.7 in)
199095.3 mm (3.8 in)
199158.7 mm (2.3 in)
199258.4 mm (2.3 in)
199356.6 mm (2.2 in)
199446.0 mm (1.8 in)
199567.8 mm (2.7 in)
199647.8 mm (1.9 in)
199754.9 mm (2.2 in)
199841.9 mm (1.6 in)
199962.0 mm (2.4 in)
200068.3 mm (2.7 in)
200164.8 mm (2.6 in)
200241.9 mm (1.6 in)
200427.9 mm (1.1 in)
200546.0 mm (1.8 in)
200611.4 mm (0.4 in)
2007124.0 mm (4.9 in)
200858.2 mm (2.3 in)
200923.1 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San Pedro Chenalho (Dge) by year The wettest five days of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 257.5 mm (10.1 in) in 1983, marked on the chart; the median year is 142.2 mm (5.6 in). 01002003001970198019902000Record: 257.5 mm (10.1 in) in 1983
The wettest five days of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 257.5 mm (10.1 in) in 1983, marked on the chart; the median year is 142.2 mm (5.6 in).
Wettest five days (Rx5day) at San Pedro Chenalho (Dge) by year
YearWettest five days (Rx5day)
19668.9 mm (0.35 in)
1967153.0 mm (6.0 in)
196866.3 mm (2.6 in)
1969107.7 mm (4.2 in)
1970163.5 mm (6.4 in)
1971161.1 mm (6.3 in)
1972121.3 mm (4.8 in)
1973248.2 mm (9.8 in)
1974160.1 mm (6.3 in)
1975170.4 mm (6.7 in)
1976116.2 mm (4.6 in)
1977149.9 mm (5.9 in)
1978153.7 mm (6.1 in)
1979125.8 mm (5.0 in)
1980187.0 mm (7.4 in)
1981122.8 mm (4.8 in)
1982142.2 mm (5.6 in)
1983257.5 mm (10.1 in)
1984226.8 mm (8.9 in)
1985165.3 mm (6.5 in)
1986116.9 mm (4.6 in)
1987124.7 mm (4.9 in)
1988172.8 mm (6.8 in)
1989117.6 mm (4.6 in)
1990125.8 mm (5.0 in)
1991107.7 mm (4.2 in)
1992174.5 mm (6.9 in)
1993160.8 mm (6.3 in)
1994139.5 mm (5.5 in)
1995173.3 mm (6.8 in)
1996144.5 mm (5.7 in)
199773.5 mm (2.9 in)
1998120.2 mm (4.7 in)
1999167.8 mm (6.6 in)
2000130.2 mm (5.1 in)
2001141.2 mm (5.6 in)
2002108.5 mm (4.3 in)
200470.1 mm (2.8 in)
2005159.5 mm (6.3 in)
200621.3 mm (0.8 in)
2007202.6 mm (8.0 in)
2008176.8 mm (7.0 in)
200939.2 mm (1.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San Pedro Chenalho (Dge) by year The longest dry spell of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 116 days in 1998, marked on the chart; the median year is 22 days. 0501001501970198019902000Record: 116 days in 1998
The longest dry spell of the year at San Pedro Chenalho (Dge), 1966 to 2009. The record is 116 days in 1998, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at San Pedro Chenalho (Dge) by year
YearLongest dry spell (CDD)
19664 days
196720 days
196811 days
196917 days
197031 days
197132 days
197219 days
197318 days
197415 days
197516 days
197629 days
197724 days
197816 days
197917 days
198015 days
198116 days
198217 days
198331 days
198415 days
198524 days
198624 days
198723 days
198831 days
198916 days
199022 days
199128 days
199226 days
199321 days
199414 days
199519 days
199618 days
199762 days
1998116 days
199941 days
200055 days
200142 days
200229 days
200420 days
200550 days
200624 days
200739 days
200827 days
200918 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

33 years, 1967 to 2008

A day with at least 63.3 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 114.0 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at San Pedro Chenalho (Dge): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years63.3 mm (2.5 in)
5 years79.4 mm (3.1 in)
10 years89.0 mm (3.5 in)
25 years99.9 mm (3.9 in)
50 years107.3 mm (4.2 in)Longer than the 33 years of record
100 years114.0 mm (4.5 in)Longer than the 33 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, 33 years of values from 1967 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: 99.6 mm (3.9 in) in 1974; 99.6 mm (3.9 in) in 1983; 95.3 mm (3.8 in) in 1990.

Download the Data

  • Data for San Pedro Chenalho (Dge) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for San Pedro Chenalho (Dge) 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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