Built 2026-10-19 (19 October 2026)

Guaymas 4-P-6 Weather Records (MXN00026292)

Record envelope, standing records and threshold days for Guaymas 4-P-6 (MXN00026292), Mexico, with 45 years of record.

Key Facts for Guaymas 4-P-6

  • Guaymas 4-P-6 (MXN00026292) is a weather station in Mexico at 27.55 latitude and -110.50 longitude, 13 m (42 ft) above sea level.
  • The station reports from 1967 to 2011, 45 years of record.
  • 1,464 records set at Guaymas 4-P-6 still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Guaymas 4-P-6 tied a daily record low maximum temperature of 20.6 C (69.1 F) on 20 December 2011.

About the Station

  • Location: Mexico, 27.55 latitude, -110.50 longitude.
  • Elevation: 13 m (42 ft).
  • Period of record: 1967 to 2011, 45 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 Guaymas 4-P-6, with 2026 drawn through them The band shows the record high and record low for each calendar day at Guaymas 4-P-6. 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 Guaymas 4-P-6. 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 Guaymas 4-P-6, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.7 C (98.1 F)-1.1 C (30.0 F)n/an/a
Feb38.9 C (102.0 F)-1.1 C (30.0 F)n/an/a
Mar41.7 C (107.1 F)2.8 C (37.0 F)n/an/a
Apr40.6 C (105.1 F)5.6 C (42.1 F)n/an/a
May44.4 C (111.9 F)7.8 C (46.0 F)n/an/a
Jun47.8 C (118.0 F)10.0 C (50.0 F)n/an/a
Jul45.6 C (114.1 F)13.9 C (57.0 F)n/an/a
Aug48.3 C (118.9 F)18.9 C (66.0 F)n/an/a
Sep45.0 C (113.0 F)7.8 C (46.0 F)n/an/a
Oct43.9 C (111.0 F)7.8 C (46.0 F)n/an/a
Nov38.9 C (102.0 F)3.9 C (39.0 F)n/an/a
Dec35.6 C (96.1 F)-2.2 C (28.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Guaymas 4-P-6 by the year they were set 1,464 records at Guaymas 4-P-6 still stand. 1969 holds the most, with 86. 02550751001967: 461968: 641969: 861970: 451971: 521972: 421973: 451974: 291975: 411976: 281977: 491978: 441979: 341980: 561981: 311982: 281983: 651984: 591985: 231986: 301987: 351988: 181989: 271990: 181991: 141992: 291993: 171994: 141995: 101996: 181997: 361998: 401999: 212000: 302001: 432002: 162003: 262004: 362005: 132006: 162007: 222008: 192009: 242010: 122011: 13196719721977198219871992199720022007
1,464 records at Guaymas 4-P-6 still stand. 1969 holds the most, with 86.
Standing records at Guaymas 4-P-6 by the year they were set
Year setStanding records
196746
196864
196986
197045
197152
197242
197345
197429
197541
197628
197749
197844
197934
198056
198131
198228
198365
198459
198523
198630
198735
198818
198927
199018
199114
199229
199317
199414
199510
199618
199736
199840
199921
200030
200143
200216
200326
200436
200513
200616
200722
200819
200924
201012
201113

All-Time Record Progression

6 new records
When Guaymas 4-P-6 set new all-time records 6 all-time records were set at Guaymas 4-P-6 between 19 June 1998 and 26 July 2011. Each dot is a new record. Record high maximum temperatureRecord daily precipitationRecord low minimum temperatureRecord high minimum temperature19 June 1998: Record high maximum temperature 47.2 C (117.0 F)21 June 1998: Record high maximum temperature 47.8 C (118.0 F)29 August 1998: Record high maximum temperature 48.3 C (118.9 F)29 September 2001: Record daily precipitation 183.9 mm (7.2 in)30 December 2003: Record low minimum temperature -2.2 C (28.0 F)26 July 2011: Record high minimum temperature 31.7 C (89.1 F)200020052010
6 all-time records were set at Guaymas 4-P-6 between 19 June 1998 and 26 July 2011. Each dot is a new record.
When Guaymas 4-P-6 set new all-time records
DateKindDetail
1998-06-19Record high maximum temperatureRecord high maximum temperature 47.2 C (117.0 F)
1998-06-21Record high maximum temperatureRecord high maximum temperature 47.8 C (118.0 F)
1998-08-29Record high maximum temperatureRecord high maximum temperature 48.3 C (118.9 F)
2001-09-29Record daily precipitationRecord daily precipitation 183.9 mm (7.2 in)
2003-12-30Record low minimum temperatureRecord low minimum temperature -2.2 C (28.0 F)
2011-07-26Record high minimum temperatureRecord high minimum temperature 31.7 C (89.1 F)

Wettest Day of Each Month

Sep: 183.9 mm (7.2 in)
Record daily precipitation for each month at Guaymas 4-P-6 The wettest day on record for each calendar month at Guaymas 4-P-6. The most was 183.9 mm (7.2 in) on 29 September 2001. 050100150200 Jan: 40.9 mm (1.6 in), 17 January 1979 Jan Feb: 37.3 mm (1.5 in), 11 February 2005 Feb Mar: 29.0 mm (1.1 in), 3 March 1983 Mar Apr: 9.4 mm (0.37 in), 21 April 1981 Apr May: 6.4 mm (0.25 in), 17 May 1979 May Jun: 15.5 mm (0.6 in), 21 June 2001 Jun Jul: 80.8 mm (3.2 in), 18 July 1982 Jul Aug: 111.8 mm (4.4 in), 8 August 1972 Aug Sep: 183.9 mm (7.2 in), 29 September 2001 Sep Oct: 119.9 mm (4.7 in), 12 October 2009 Oct Nov: 61.5 mm (2.4 in), 7 November 1974 Nov Dec: 60.5 mm (2.4 in), 5 December 1994 Dec
The wettest day on record for each calendar month at Guaymas 4-P-6. The most was 183.9 mm (7.2 in) on 29 September 2001.
Record daily precipitation for each month at Guaymas 4-P-6
MonthRecord daily precipitation (mm)Date
Jan40.9 mm (1.6 in)17 January 1979
Feb37.3 mm (1.5 in)11 February 2005
Mar29.0 mm (1.1 in)3 March 1983
Apr9.4 mm (0.37 in)21 April 1981
May6.4 mm (0.25 in)17 May 1979
Jun15.5 mm (0.6 in)21 June 2001
Jul80.8 mm (3.2 in)18 July 1982
Aug111.8 mm (4.4 in)8 August 1972
Sep183.9 mm (7.2 in)29 September 2001
Oct119.9 mm (4.7 in)12 October 2009
Nov61.5 mm (2.4 in)7 November 1974
Dec60.5 mm (2.4 in)5 December 1994

Period of Record Coverage

1967 to 2011
Days with data per year at Guaymas 4-P-6 45 years of record at Guaymas 4-P-6, 1967 to 2011. 4 years have data for under 90 percent of days and are left out of rankings: 1967, 1975, 1976, 1978. 1967: 273 of 365 days1968: 365 of 366 days1969: 363 of 365 days1970: 332 of 365 days1971: 361 of 365 days1972: 365 of 366 days1973: 360 of 365 days1974: 362 of 365 days1975: 312 of 365 days1976: 312 of 366 days1977: 360 of 365 days1978: 328 of 365 days1979: 332 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 364 of 365 days1984: 332 of 366 days1985: 365 of 365 days1986: 365 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: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 334 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 333 of 366 days2009: 334 of 365 days2010: 365 of 365 days2011: 365 of 365 days19701980199020002010
45 years of record at Guaymas 4-P-6, 1967 to 2011. 4 years have data for under 90 percent of days and are left out of rankings: 1967, 1975, 1976, 1978.
Days with data per year at Guaymas 4-P-6
YearDays with dataShare of yearComplete
196727375%No
1968365100%Yes
196936399%Yes
197033291%Yes
197136199%Yes
1972365100%Yes
197336099%Yes
197436299%Yes
197531285%No
197631285%No
197736099%Yes
197832890%No
197933291%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
1983364100%Yes
198433291%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
199933492%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
200833391%Yes
200933492%Yes
2010365100%Yes
2011365100%Yes

Latest Records

20
Latest records at Guaymas 4-P-6
DateStationRecordValueBeat old record byOld record stoodSignificance
20 December 2011Guaymas 4-P-6, MXdaily low max (Tie)20.6 C (69.1 F)tie42 years4 of 100 (Routine)
14 December 2011Guaymas 4-P-6, MXdaily high min (Tie)12.8 C (55.0 F)tie28 years3 of 100 (Routine)
13 December 2011Guaymas 4-P-6, MXdaily high min15.0 C (59.0 F)2.2 C (4.0 F)29 years20 of 100 (Routine)
12 December 2011Guaymas 4-P-6, MXdaily low max (Tie)20.0 C (68.0 F)tie25 years2 of 100 (Routine)
5 December 2011Guaymas 4-P-6, MXdaily low min (Tie)3.9 C (39.0 F)tie32 years3 of 100 (Routine)
4 December 2011Guaymas 4-P-6, MXdaily low max17.8 C (64.0 F)2.2 C (4.0 F)14 years14 of 100 (Routine)
2 December 2011Guaymas 4-P-6, MXdaily low max (Tie)20.6 C (69.1 F)tie28 years3 of 100 (Routine)
24 November 2011Guaymas 4-P-6, MXdaily rain27.4 mm (1.1 in)6.1 mm (0.24 in)28 years17 of 100 (Routine)
13 November 2011Guaymas 4-P-6, MXdaily rain35.3 mm (1.4 in)21.3 mm (0.8 in)20 years28 of 100 (Routine)
13 November 2011Guaymas 4-P-6, MXdaily low max (Tie)23.9 C (75.0 F)tie17 years2 of 100 (Routine)
9 November 2011Guaymas 4-P-6, MXdaily low max (Tie)25.6 C (78.1 F)tie36 years3 of 100 (Routine)
5 November 2011Guaymas 4-P-6, MXdaily low max26.7 C (80.1 F)0.5 C (0.9 F)10 years8 of 100 (Routine)
21 October 2011Guaymas 4-P-6, MXdaily high min23.9 C (75.0 F)2.2 C (4.0 F)14 years13 of 100 (Routine)
15 October 2011Guaymas 4-P-6, MXdaily high max (Tie)40.0 C (104.0 F)tie16 years2 of 100 (Routine)
8 October 2011Guaymas 4-P-6, MXdaily low min13.9 C (57.0 F)2.8 C (5.0 F)12 years14 of 100 (Routine)
3 October 2011Guaymas 4-P-6, MXdaily high max (Tie)40.6 C (105.1 F)tie30 years3 of 100 (Routine)
2 October 2011Guaymas 4-P-6, MXdaily high max (Tie)40.0 C (104.0 F)tie22 years2 of 100 (Routine)
19 September 2011Guaymas 4-P-6, MXdaily high max (Tie)41.7 C (107.1 F)tie13 years2 of 100 (Routine)
17 September 2011Guaymas 4-P-6, MXdaily high min (Tie)25.6 C (78.1 F)tie13 years2 of 100 (Routine)
13 September 2011Guaymas 4-P-6, MXdaily high min (Tie)25.6 C (78.1 F)tie44 years4 of 100 (Routine)

Climate Trend

35 complete years, 1968 to 2011
Annual mean temperature at Guaymas 4-P-6 as warming stripes, 1968 to 2011 One stripe for each of 35 complete years at Guaymas 4-P-6, 1968 to 2011. Blue stripes are years cooler than the station's own mean of 23.8 C (74.8 F); red stripes are warmer. The coolest year was 1971, at 22.7 C (72.8 F), and the warmest was 1980, at 24.6 C (76.4 F). The strongest colour marks a difference of 1.1 C (2.0 F). 1968: 23.5 C, -0.3 C from the station mean1969: 23.3 C, -0.5 C from the station mean1971: 22.7 C, -1.1 C from the station mean1972: 23.8 C, 0.0 C from the station mean1973: 23.0 C, -0.7 C from the station mean1974: 23.4 C, -0.4 C from the station mean1977: 24.5 C, +0.7 C from the station mean1980: 24.6 C, +0.9 C from the station mean1981: 24.4 C, +0.6 C from the station mean1982: 23.8 C, +0.1 C from the station mean1983: 23.0 C, -0.8 C from the station mean1985: 23.0 C, -0.7 C from the station mean1986: 24.3 C, +0.6 C from the station mean1987: 23.7 C, -0.1 C from the station mean1988: 23.6 C, -0.1 C from the station mean1989: 23.7 C, -0.1 C from the station mean1990: 23.3 C, -0.4 C from the station mean1991: 23.3 C, -0.5 C from the station mean1992: 23.8 C, 0.0 C from the station mean1993: 23.6 C, -0.1 C from the station mean1994: 23.7 C, -0.1 C from the station mean1995: 23.6 C, -0.1 C from the station mean1996: 24.0 C, +0.2 C from the station mean1997: 23.8 C, 0.0 C from the station mean1998: 23.9 C, +0.2 C from the station mean2000: 24.4 C, +0.7 C from the station mean2001: 24.3 C, +0.6 C from the station mean2002: 24.1 C, +0.4 C from the station mean2003: 24.4 C, +0.7 C from the station mean2004: 24.1 C, +0.3 C from the station mean2005: 24.3 C, +0.5 C from the station mean2006: 24.2 C, +0.4 C from the station mean2007: 23.8 C, 0.0 C from the station mean2010: 23.4 C, -0.3 C from the station mean2011: 23.3 C, -0.5 C from the station mean196819751980198519901995200020052010
One stripe for each of 35 complete years at Guaymas 4-P-6, 1968 to 2011. Blue stripes are years cooler than the station's own mean of 23.8 C (74.8 F); red stripes are warmer. The coolest year was 1971, at 22.7 C (72.8 F), and the warmest was 1980, at 24.6 C (76.4 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Guaymas 4-P-6 as warming stripes, 1968 to 2011
YearAnnual mean temperatureDifference from the station mean
196823.5 C-0.30 C
196923.3 C-0.49 C
197122.7 C-1.09 C
197223.8 C+0.02 C
197323.0 C-0.72 C
197423.4 C-0.36 C
197724.5 C+0.75 C
198024.6 C+0.89 C
198124.4 C+0.61 C
198223.8 C+0.06 C
198323.0 C-0.78 C
198523.0 C-0.73 C
198624.3 C+0.57 C
198723.7 C-0.05 C
198823.6 C-0.14 C
198923.7 C-0.08 C
199023.3 C-0.43 C
199123.3 C-0.46 C
199223.8 C+0.01 C
199323.6 C-0.14 C
199423.7 C-0.10 C
199523.6 C-0.13 C
199624.0 C+0.21 C
199723.8 C0.00 C
199823.9 C+0.19 C
200024.4 C+0.66 C
200124.3 C+0.58 C
200224.1 C+0.36 C
200324.4 C+0.67 C
200424.1 C+0.30 C
200524.3 C+0.52 C
200624.2 C+0.43 C
200723.8 C0.00 C
201023.4 C-0.33 C
201123.3 C-0.47 C

The fitted trend in annual mean temperature here over 1968 to 2011 is 0.13 C (0.00 to 0.26) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.23 F (-0.01 to 0.47) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Guaymas 4-P-6
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.13 C (0.00 to 0.26) per decade0.23 F (-0.01 to 0.47) per decade1968 to 201135Not clearly different from zero
Mean daily maximum0.3 C (0.1 to 0.5) per decade0.5 F (0.1 to 0.9) per decade1968 to 201135Rise
Mean daily minimum-0.02 C (-0.19 to 0.14) per decade-0.04 F (-0.33 to 0.26) per decade1968 to 201135Not 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

1967 to 2011
Yearly extremes at Guaymas 4-P-6: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)48.3 C (118.9 F)199842.8 C (109.0 F)45
Coldest night (TNn)-2.2 C (28.0 F)20032.8 C (37.0 F)45
Wettest day (Rx1day)183.9 mm (7.2 in)200156.9 mm (2.2 in)45
Wettest five days (Rx5day)271.5 mm (10.7 in)200162.2 mm (2.4 in)45
Longest dry spell (CDD)194 days1994140 days45

Hottest day (TXx)

Hottest day (TXx) at Guaymas 4-P-6 by year The hottest day of the year at Guaymas 4-P-6, 1967 to 2011. The record is 48.3 C (118.9 F) in 1998, marked on the chart; the median year is 42.8 C (109.0 F). 40424446485019701980199020002010Record: 48.3 C (118.9 F) in 1998
The hottest day of the year at Guaymas 4-P-6, 1967 to 2011. The record is 48.3 C (118.9 F) in 1998, marked on the chart; the median year is 42.8 C (109.0 F).
Hottest day (TXx) at Guaymas 4-P-6 by year
YearHottest day (TXx)
196742.2 C (108.0 F)
196840.6 C (105.1 F)
196941.7 C (107.1 F)
197041.7 C (107.1 F)
197140.6 C (105.1 F)
197242.8 C (109.0 F)
197342.8 C (109.0 F)
197442.8 C (109.0 F)
197542.8 C (109.0 F)
197645.6 C (114.1 F)
197742.8 C (109.0 F)
197845.0 C (113.0 F)
197945.0 C (113.0 F)
198045.6 C (114.1 F)
198145.6 C (114.1 F)
198243.9 C (111.0 F)
198342.8 C (109.0 F)
198442.2 C (108.0 F)
198542.8 C (109.0 F)
198641.7 C (107.1 F)
198742.2 C (108.0 F)
198842.8 C (109.0 F)
198941.7 C (107.1 F)
199042.8 C (109.0 F)
199141.7 C (107.1 F)
199242.8 C (109.0 F)
199342.8 C (109.0 F)
199443.9 C (111.0 F)
199542.8 C (109.0 F)
199643.3 C (109.9 F)
199745.0 C (113.0 F)
199848.3 C (118.9 F)
199945.0 C (113.0 F)
200045.0 C (113.0 F)
200145.0 C (113.0 F)
200243.9 C (111.0 F)
200343.3 C (109.9 F)
200445.0 C (113.0 F)
200542.2 C (108.0 F)
200642.8 C (109.0 F)
200743.9 C (111.0 F)
200843.9 C (111.0 F)
200941.7 C (107.1 F)
201042.8 C (109.0 F)
201141.7 C (107.1 F)

Coldest night (TNn)

Coldest night (TNn) at Guaymas 4-P-6 by year The coldest night of the year at Guaymas 4-P-6, 1967 to 2011. The record is -2.2 C (28.0 F) in 2003, marked on the chart; the median year is 2.8 C (37.0 F). -4-2024619701980199020002010Record: -2.2 C (28.0 F) in 2003
The coldest night of the year at Guaymas 4-P-6, 1967 to 2011. The record is -2.2 C (28.0 F) in 2003, marked on the chart; the median year is 2.8 C (37.0 F).
Coldest night (TNn) at Guaymas 4-P-6 by year
YearColdest night (TNn)
19673.9 C (39.0 F)
19681.7 C (35.1 F)
19692.8 C (37.0 F)
19705.0 C (41.0 F)
1971-1.1 C (30.0 F)
19723.9 C (39.0 F)
19733.3 C (37.9 F)
19743.9 C (39.0 F)
19752.8 C (37.0 F)
19762.8 C (37.0 F)
19773.9 C (39.0 F)
19780.0 C (32.0 F)
19793.9 C (39.0 F)
19805.0 C (41.0 F)
19811.7 C (35.1 F)
19822.8 C (37.0 F)
19832.2 C (36.0 F)
19843.9 C (39.0 F)
19850.6 C (33.1 F)
19861.7 C (35.1 F)
19870.0 C (32.0 F)
19880.0 C (32.0 F)
19890.0 C (32.0 F)
19900.6 C (33.1 F)
19913.9 C (39.0 F)
19923.9 C (39.0 F)
19935.0 C (41.0 F)
19945.0 C (41.0 F)
19953.9 C (39.0 F)
19963.9 C (39.0 F)
19972.8 C (37.0 F)
19982.2 C (36.0 F)
19992.8 C (37.0 F)
20001.1 C (34.0 F)
20012.8 C (37.0 F)
20022.8 C (37.0 F)
2003-2.2 C (28.0 F)
20042.8 C (37.0 F)
20055.0 C (41.0 F)
20063.9 C (39.0 F)
20071.7 C (35.1 F)
20083.9 C (39.0 F)
20095.0 C (41.0 F)
20105.0 C (41.0 F)
2011-1.1 C (30.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Guaymas 4-P-6 by year The wettest day of the year at Guaymas 4-P-6, 1967 to 2011. The record is 183.9 mm (7.2 in) in 2001, marked on the chart; the median year is 56.9 mm (2.2 in). 05010015020019701980199020002010Record: 183.9 mm (7.2 in) in 2001
The wettest day of the year at Guaymas 4-P-6, 1967 to 2011. The record is 183.9 mm (7.2 in) in 2001, marked on the chart; the median year is 56.9 mm (2.2 in).
Wettest day (Rx1day) at Guaymas 4-P-6 by year
YearWettest day (Rx1day)
196775.4 mm (3.0 in)
196898.3 mm (3.9 in)
196943.9 mm (1.7 in)
197042.9 mm (1.7 in)
197169.9 mm (2.8 in)
1972111.8 mm (4.4 in)
197343.9 mm (1.7 in)
197461.5 mm (2.4 in)
197579.8 mm (3.1 in)
197658.9 mm (2.3 in)
197759.9 mm (2.4 in)
197845.5 mm (1.8 in)
197940.9 mm (1.6 in)
198040.9 mm (1.6 in)
198155.9 mm (2.2 in)
198280.8 mm (3.2 in)
198356.9 mm (2.2 in)
198462.0 mm (2.4 in)
198525.9 mm (1.0 in)
198640.1 mm (1.6 in)
198724.9 mm (1.0 in)
198843.9 mm (1.7 in)
198966.8 mm (2.6 in)
199053.8 mm (2.1 in)
199197.8 mm (3.9 in)
199233.8 mm (1.3 in)
199375.9 mm (3.0 in)
199460.5 mm (2.4 in)
199572.9 mm (2.9 in)
199641.4 mm (1.6 in)
199749.8 mm (2.0 in)
199866.3 mm (2.6 in)
199932.3 mm (1.3 in)
200036.6 mm (1.4 in)
2001183.9 mm (7.2 in)
200244.5 mm (1.8 in)
200340.4 mm (1.6 in)
2004105.9 mm (4.2 in)
200537.3 mm (1.5 in)
200647.0 mm (1.9 in)
200779.0 mm (3.1 in)
200856.9 mm (2.2 in)
2009119.9 mm (4.7 in)
201031.0 mm (1.2 in)
201195.8 mm (3.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Guaymas 4-P-6 by year The wettest five days of the year at Guaymas 4-P-6, 1967 to 2011. The record is 271.5 mm (10.7 in) in 2001, marked on the chart; the median year is 62.2 mm (2.4 in). 010020030019701980199020002010Record: 271.5 mm (10.7 in) in 2001
The wettest five days of the year at Guaymas 4-P-6, 1967 to 2011. The record is 271.5 mm (10.7 in) in 2001, marked on the chart; the median year is 62.2 mm (2.4 in).
Wettest five days (Rx5day) at Guaymas 4-P-6 by year
YearWettest five days (Rx5day)
1967110.5 mm (4.4 in)
196898.3 mm (3.9 in)
196943.9 mm (1.7 in)
197046.0 mm (1.8 in)
197175.3 mm (3.0 in)
1972210.2 mm (8.3 in)
197343.9 mm (1.7 in)
197465.0 mm (2.6 in)
197592.2 mm (3.6 in)
197658.9 mm (2.3 in)
197762.2 mm (2.4 in)
197848.3 mm (1.9 in)
197955.9 mm (2.2 in)
198068.8 mm (2.7 in)
198164.3 mm (2.5 in)
198280.8 mm (3.2 in)
198357.4 mm (2.3 in)
1984108.5 mm (4.3 in)
198539.4 mm (1.6 in)
198651.6 mm (2.0 in)
198726.7 mm (1.1 in)
198853.6 mm (2.1 in)
198966.8 mm (2.6 in)
1990105.4 mm (4.1 in)
1991136.9 mm (5.4 in)
199250.1 mm (2.0 in)
1993100.0 mm (3.9 in)
199460.8 mm (2.4 in)
199594.0 mm (3.7 in)
199641.4 mm (1.6 in)
199749.8 mm (2.0 in)
199868.9 mm (2.7 in)
199940.9 mm (1.6 in)
200037.6 mm (1.5 in)
2001271.5 mm (10.7 in)
200250.3 mm (2.0 in)
200341.4 mm (1.6 in)
2004140.7 mm (5.5 in)
200546.8 mm (1.8 in)
200647.0 mm (1.9 in)
200797.5 mm (3.8 in)
200883.3 mm (3.3 in)
2009142.0 mm (5.6 in)
201058.7 mm (2.3 in)
2011132.7 mm (5.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Guaymas 4-P-6 by year The longest dry spell of the year at Guaymas 4-P-6, 1967 to 2011. The record is 194 days in 1994, marked on the chart; the median year is 140 days. 05010015020019701980199020002010Record: 194 days in 1994
The longest dry spell of the year at Guaymas 4-P-6, 1967 to 2011. The record is 194 days in 1994, marked on the chart; the median year is 140 days.
Longest dry spell (CDD) at Guaymas 4-P-6 by year
YearLongest dry spell (CDD)
196762 days
1968125 days
1969150 days
1970104 days
1971172 days
1972147 days
1973127 days
1974171 days
1975158 days
1976145 days
197790 days
197849 days
1979112 days
1980168 days
198194 days
1982172 days
198395 days
1984106 days
1985104 days
1986148 days
1987153 days
1988124 days
1989140 days
1990133 days
1991126 days
1992117 days
1993164 days
1994194 days
1995141 days
1996182 days
1997146 days
1998119 days
1999100 days
2000137 days
2001127 days
2002156 days
2003107 days
2004100 days
2005152 days
2006193 days
2007167 days
2008156 days
200958 days
2010159 days
2011183 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

43 years, 1968 to 2011

A day with at least 54.0 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 182.4 mm (7.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Guaymas 4-P-6: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years54.0 mm (2.1 in)
5 years78.8 mm (3.1 in)
10 years98.6 mm (3.9 in)
25 years127.9 mm (5.0 in)
50 years153.4 mm (6.0 in)Longer than the 43 years of record
100 years182.4 mm (7.2 in)Longer than the 43 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, 43 years of values from 1968 to 2011.

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: 183.9 mm (7.2 in) in 2001; 119.9 mm (4.7 in) in 2009; 111.8 mm (4.4 in) in 1972.

Download the Data

  • Data for Guaymas 4-P-6 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Guaymas 4-P-6 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).