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Ameca Weather Records (MXN00014009)

Record envelope, standing records and threshold days for Ameca (MXN00014009), Mexico, with 90 years of record.

Key Facts for Ameca

  • Ameca (MXN00014009) is a weather station in Mexico at 20.53 latitude and -104.03 longitude, 1,230 m (4,035 ft) above sea level.
  • The station reports from 1923 to 2012, 90 years of record.
  • 1,464 records set at Ameca still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Ameca tied a daily record high maximum temperature of 30.0 C (86.0 F) on 28 December 2011.

About the Station

  • Location: Mexico, 20.53 latitude, -104.03 longitude.
  • Elevation: 1,230 m (4,035 ft).
  • Period of record: 1923 to 2012, 90 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 Ameca, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ameca. 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 Ameca. 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 Ameca, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan33.9 C (93.0 F)-6.1 C (21.0 F)n/an/a
Feb36.1 C (97.0 F)-6.1 C (21.0 F)n/an/a
Mar38.9 C (102.0 F)-5.0 C (23.0 F)n/an/a
Apr38.9 C (102.0 F)1.1 C (34.0 F)n/an/a
May39.4 C (102.9 F)1.7 C (35.1 F)n/an/a
Jun40.0 C (104.0 F)5.0 C (41.0 F)n/an/a
Jul38.9 C (102.0 F)5.0 C (41.0 F)n/an/a
Aug38.9 C (102.0 F)5.6 C (42.1 F)n/an/a
Sep38.3 C (100.9 F)5.6 C (42.1 F)n/an/a
Oct38.9 C (102.0 F)-0.6 C (30.9 F)n/an/a
Nov38.9 C (102.0 F)-1.7 C (28.9 F)n/an/a
Dec36.7 C (98.1 F)-5.6 C (21.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ameca by the year they were set 1,464 records at Ameca still stand. 1927 holds the most, with 281. 01002003001923: 271925: 431926: 91927: 2811928: 241929: 1401930: 1431931: 121939: 631942: 291943: 51961: 331962: 111963: 111964: 141965: 211966: 411967: 151968: 151978: 31979: 171980: 241981: 171982: 191983: 131984: 201985: 141986: 141987: 91988: 131989: 121990: 101991: 61992: 221993: 21995: 131996: 111997: 211998: 81999: 92000: 92001: 182002: 332003: 242004: 252005: 202006: 182007: 152008: 122009: 162010: 292011: 31192319301962196819831989199620022008
1,464 records at Ameca still stand. 1927 holds the most, with 281.
Standing records at Ameca by the year they were set
Year setStanding records
192327
192543
19269
1927281
192824
1929140
1930143
193112
193963
194229
19435
196133
196211
196311
196414
196521
196641
196715
196815
19783
197917
198024
198117
198219
198313
198420
198514
198614
19879
198813
198912
199010
19916
199222
19932
199513
199611
199721
19988
19999
20009
200118
200233
200324
200425
200520
200618
200715
200812
200916
201029
201131

Wettest Day of Each Month

Jun: 254.8 mm (10.0 in)
Record daily precipitation for each month at Ameca The wettest day on record for each calendar month at Ameca. The most was 254.8 mm (10.0 in) on 19 June 1959. 0100200300 Jan: 70.1 mm (2.8 in), 25 January 1992 Jan Feb: 48.0 mm (1.9 in), 2 February 2010 Feb Mar: 69.9 mm (2.8 in), 4 March 1968 Mar Apr: 30.0 mm (1.2 in), 22 April 1956 Apr May: 84.8 mm (3.3 in), 27 May 1959 May Jun: 254.8 mm (10.0 in), 19 June 1959 Jun Jul: 98.6 mm (3.9 in), 23 July 2010 Jul Aug: 77.0 mm (3.0 in), 19 August 1950 Aug Sep: 72.4 mm (2.9 in), 9 September 1997 Sep Oct: 111.8 mm (4.4 in), 12 October 1955 Oct Nov: 65.3 mm (2.6 in), 26 November 1982 Nov Dec: 69.9 mm (2.8 in), 13 December 1960 Dec
The wettest day on record for each calendar month at Ameca. The most was 254.8 mm (10.0 in) on 19 June 1959.
Record daily precipitation for each month at Ameca
MonthRecord daily precipitation (mm)Date
Jan70.1 mm (2.8 in)25 January 1992
Feb48.0 mm (1.9 in)2 February 2010
Mar69.9 mm (2.8 in)4 March 1968
Apr30.0 mm (1.2 in)22 April 1956
May84.8 mm (3.3 in)27 May 1959
Jun254.8 mm (10.0 in)19 June 1959
Jul98.6 mm (3.9 in)23 July 2010
Aug77.0 mm (3.0 in)19 August 1950
Sep72.4 mm (2.9 in)9 September 1997
Oct111.8 mm (4.4 in)12 October 1955
Nov65.3 mm (2.6 in)26 November 1982
Dec69.9 mm (2.8 in)13 December 1960

Period of Record Coverage

1923 to 2012
Days with data per year at Ameca 55 years of record at Ameca, 1923 to 2012. 15 years have data for under 90 percent of days and are left out of rankings: 1923, 1925, 1939, 1942, 1943, 1945, 1946, 1961 and others. 1923: 245 of 365 days1925: 231 of 365 days1926: 362 of 365 days1927: 363 of 365 days1928: 364 of 366 days1929: 364 of 365 days1930: 364 of 365 days1931: 365 of 365 days1939: 182 of 365 days1942: 180 of 365 days1943: 57 of 365 days1945: 18 of 365 days1946: 14 of 365 days1961: 213 of 365 days1962: 357 of 365 days1963: 268 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 363 of 365 days1967: 365 of 365 days1968: 181 of 366 days1978: 230 of 365 days1979: 365 of 365 days1980: 335 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 364 of 365 days1984: 366 of 366 days1985: 337 of 365 days1986: 365 of 365 days1987: 364 of 365 days1988: 238 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 335 of 365 days1992: 365 of 366 days1993: 151 of 365 days1995: 214 of 365 days1996: 337 of 366 days1997: 359 of 365 days1998: 365 of 365 days1999: 364 of 365 days2000: 335 of 366 days2001: 364 of 365 days2002: 342 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 334 of 365 days2008: 366 of 366 days2009: 364 of 365 days2010: 360 of 365 days2011: 365 of 365 days2012: 26 of 366 days19301980199020002010
55 years of record at Ameca, 1923 to 2012. 15 years have data for under 90 percent of days and are left out of rankings: 1923, 1925, 1939, 1942, 1943, 1945, 1946, 1961 and others.
Days with data per year at Ameca
YearDays with dataShare of yearComplete
192324567%No
192523163%No
192636299%Yes
192736399%Yes
192836499%Yes
1929364100%Yes
1930364100%Yes
1931365100%Yes
193918250%No
194218049%No
19435716%No
1945185%No
1946144%No
196121358%No
196235798%Yes
196326873%No
1964366100%Yes
1965365100%Yes
196636399%Yes
1967365100%Yes
196818149%No
197823063%No
1979365100%Yes
198033592%Yes
1981365100%Yes
1982365100%Yes
1983364100%Yes
1984366100%Yes
198533792%Yes
1986365100%Yes
1987364100%Yes
198823865%No
1989365100%Yes
1990365100%Yes
199133592%Yes
1992365100%Yes
199315141%No
199521459%No
199633792%Yes
199735998%Yes
1998365100%Yes
1999364100%Yes
200033592%Yes
2001364100%Yes
200234294%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
200733492%Yes
2008366100%Yes
2009364100%Yes
201036099%Yes
2011365100%Yes
2012267%No

Latest Records

20
Latest records at Ameca
DateStationRecordValueBeat old record byOld record stoodSignificance
28 December 2011Ameca, MXdaily high max (Tie)30.0 C (86.0 F)tie84 years8 of 100 (Routine)
30 November 2011Ameca, MXdaily low min0.0 C (32.0 F)3.3 C (5.9 F)81 years42 of 100 (Notable)
29 November 2011Ameca, MXdaily low min0.0 C (32.0 F)2.8 C (5.0 F)81 years41 of 100 (Notable)
11 November 2011Ameca, MXdaily low max20.0 C (68.0 F)1.1 C (2.0 F)80 years36 of 100 (Notable)
4 November 2011Ameca, MXdaily low max (Tie)25.0 C (77.0 F)tie28 years4 of 100 (Routine)
3 November 2011Ameca, MXdaily low max (Tie)22.8 C (73.0 F)tie8 years2 of 100 (Routine)
2 November 2011Ameca, MXdaily low max (Tie)25.6 C (78.1 F)tie28 years4 of 100 (Routine)
29 October 2011Ameca, MXdaily low max (Tie)23.9 C (75.0 F)tie2 years2 of 100 (Routine)
24 October 2011Ameca, MXdaily low max23.9 C (75.0 F)0.5 C (0.9 F)4 years10 of 100 (Routine)
23 October 2011Ameca, MXdaily low max22.8 C (73.0 F)1.1 C (2.0 F)1 year12 of 100 (Routine)
22 October 2011Ameca, MXdaily low max20.6 C (69.1 F)5.0 C (9.0 F)18 years31 of 100 (Routine)
19 October 2011Ameca, MXdaily low max22.2 C (72.0 F)1.7 C (3.1 F)24 years21 of 100 (Routine)
12 October 2011Ameca, MXmonthly low max17.2 C (63.0 F)1.1 C (2.0 F)88 years48 of 100 (Notable)
11 October 2011Ameca, MXdaily low max21.7 C (71.1 F)3.9 C (7.0 F)46 years36 of 100 (Notable)
11 October 2011Ameca, MXdaily rain57.2 mm (2.3 in)4.1 mm (0.16 in)80 years35 of 100 (Notable)
20 September 2011Ameca, MXdaily low max21.7 C (71.1 F)2.2 C (4.0 F)82 years40 of 100 (Notable)
18 September 2011Ameca, MXdaily low max23.3 C (73.9 F)1.7 C (3.1 F)25 years21 of 100 (Routine)
16 September 2011Ameca, MXdaily high min (Tie)20.0 C (68.0 F)tie5 years2 of 100 (Routine)
4 September 2011Ameca, MXdaily low max22.8 C (73.0 F)2.8 C (5.0 F)16 years22 of 100 (Routine)
4 September 2011Ameca, MXdaily high min (Tie)19.4 C (66.9 F)tie1 year2 of 100 (Routine)

Climate Trend

30 complete years, 1926 to 2011
Annual mean temperature at Ameca as warming stripes, 1926 to 2011 One stripe for each of 30 complete years at Ameca, 1926 to 2011. Blue stripes are years cooler than the station's own mean of 21.2 C (70.1 F); red stripes are warmer. The coolest year was 1929, at 18.9 C (66.1 F), and the warmest was 1926, at 22.0 C (71.5 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1926: 22.0 C, +0.8 C from the station mean1927: 21.7 C, +0.5 C from the station mean1928: 21.8 C, +0.7 C from the station mean1929: 18.9 C, -2.2 C from the station mean1930: 20.0 C, -1.2 C from the station mean1931: 21.3 C, +0.1 C from the station mean1964: 20.9 C, -0.2 C from the station mean1965: 21.1 C, -0.1 C from the station mean1966: 21.0 C, -0.1 C from the station mean1967: 21.0 C, -0.1 C from the station mean1979: 21.6 C, +0.4 C from the station mean1981: 21.2 C, +0.1 C from the station mean1982: 21.8 C, +0.6 C from the station mean1983: 20.6 C, -0.6 C from the station mean1984: 20.5 C, -0.7 C from the station mean1987: 20.4 C, -0.7 C from the station mean1989: 21.6 C, +0.4 C from the station mean1990: 21.6 C, +0.5 C from the station mean1997: 20.9 C, -0.2 C from the station mean1998: 21.3 C, +0.1 C from the station mean1999: 21.1 C, 0.0 C from the station mean2001: 21.7 C, +0.5 C from the station mean2003: 21.9 C, +0.7 C from the station mean2004: 21.2 C, +0.1 C from the station mean2005: 21.8 C, +0.6 C from the station mean2006: 21.7 C, +0.6 C from the station mean2008: 21.2 C, 0.0 C from the station mean2009: 21.8 C, +0.6 C from the station mean2010: 20.7 C, -0.5 C from the station mean2011: 20.7 C, -0.4 C from the station mean1926193019401950196019701980199020002010
One stripe for each of 30 complete years at Ameca, 1926 to 2011. Blue stripes are years cooler than the station's own mean of 21.2 C (70.1 F); red stripes are warmer. The coolest year was 1929, at 18.9 C (66.1 F), and the warmest was 1926, at 22.0 C (71.5 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Ameca as warming stripes, 1926 to 2011
YearAnnual mean temperatureDifference from the station mean
192622.0 C+0.81 C
192721.7 C+0.51 C
192821.8 C+0.65 C
192918.9 C-2.24 C
193020.0 C-1.21 C
193121.3 C+0.09 C
196420.9 C-0.24 C
196521.1 C-0.06 C
196621.0 C-0.15 C
196721.0 C-0.12 C
197921.6 C+0.40 C
198121.2 C+0.07 C
198221.8 C+0.61 C
198320.6 C-0.59 C
198420.5 C-0.66 C
198720.4 C-0.72 C
198921.6 C+0.39 C
199021.6 C+0.45 C
199720.9 C-0.25 C
199821.3 C+0.09 C
199921.1 C-0.03 C
200121.7 C+0.50 C
200321.9 C+0.69 C
200421.2 C+0.06 C
200521.8 C+0.61 C
200621.7 C+0.55 C
200821.2 C+0.04 C
200921.8 C+0.61 C
201020.7 C-0.48 C
201120.7 C-0.42 C

The fitted trend in annual mean temperature here over 1926 to 2011 is 0.05 C (-0.04 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ameca
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.05 C (-0.04 to 0.13) per decade0.1 F (-0.1 to 0.2) per decade1926 to 201130Not clearly different from zero
Mean daily maximum-0.3 C (-0.4 to -0.2) per decade-0.5 F (-0.8 to -0.3) per decade1926 to 201130Fall
Mean daily minimum0.4 C (0.2 to 0.6) per decade0.7 F (0.3 to 1.1) per decade1926 to 201130Rise

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

1923 to 2012
Yearly extremes at Ameca: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)198237.2 C (99.0 F)55
Coldest night (TNn)-6.1 C (21.0 F)19292.8 C (37.0 F)55
Wettest day (Rx1day)254.8 mm (10.0 in)195953.6 mm (2.1 in)78
Wettest five days (Rx5day)434.4 mm (17.1 in)1959101.4 mm (4.0 in)78
Longest dry spell (CDD)161 days201189 days78

Hottest day (TXx)

Hottest day (TXx) at Ameca by year The hottest day of the year at Ameca, 1923 to 2012. The record is 40.0 C (104.0 F) in 1982, marked on the chart; the median year is 37.2 C (99.0 F). 3032.53537.5401940196019802000Record: 40.0 C (104.0 F) in 1982
The hottest day of the year at Ameca, 1923 to 2012. The record is 40.0 C (104.0 F) in 1982, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Ameca by year
YearHottest day (TXx)
192338.3 C (100.9 F)
192533.9 C (93.0 F)
192638.9 C (102.0 F)
192739.4 C (102.9 F)
192838.9 C (102.0 F)
192939.4 C (102.9 F)
193038.9 C (102.0 F)
193137.2 C (99.0 F)
193938.9 C (102.0 F)
194239.4 C (102.9 F)
194332.8 C (91.0 F)
194530.0 C (86.0 F)
194630.0 C (86.0 F)
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
196138.9 C (102.0 F)
196235.0 C (95.0 F)
196333.9 C (93.0 F)
196436.7 C (98.1 F)
196536.7 C (98.1 F)
196636.7 C (98.1 F)
196738.9 C (102.0 F)
196838.9 C (102.0 F)
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
197836.7 C (98.1 F)
197937.8 C (100.0 F)
198038.9 C (102.0 F)
198137.8 C (100.0 F)
198240.0 C (104.0 F)
198338.9 C (102.0 F)
198436.7 C (98.1 F)
198537.8 C (100.0 F)
198637.8 C (100.0 F)
198735.6 C (96.1 F)
198838.9 C (102.0 F)
198938.9 C (102.0 F)
199037.8 C (100.0 F)
199138.9 C (102.0 F)
199236.7 C (98.1 F)
199336.7 C (98.1 F)
199537.8 C (100.0 F)
199636.7 C (98.1 F)
199735.6 C (96.1 F)
199837.2 C (99.0 F)
199938.3 C (100.9 F)
200037.2 C (99.0 F)
200136.7 C (98.1 F)
200237.8 C (100.0 F)
200337.2 C (99.0 F)
200435.0 C (95.0 F)
200536.7 C (98.1 F)
200636.1 C (97.0 F)
200736.1 C (97.0 F)
200836.1 C (97.0 F)
200936.1 C (97.0 F)
201037.2 C (99.0 F)
201138.3 C (100.9 F)
201230.6 C (87.1 F)

Coldest night (TNn)

Coldest night (TNn) at Ameca by year The coldest night of the year at Ameca, 1923 to 2012. The record is -6.1 C (21.0 F) in 1929, marked on the chart; the median year is 2.8 C (37.0 F). -10-505101940196019802000Record: -6.1 C (21.0 F) in 1929
The coldest night of the year at Ameca, 1923 to 2012. The record is -6.1 C (21.0 F) in 1929, marked on the chart; the median year is 2.8 C (37.0 F).
Coldest night (TNn) at Ameca by year
YearColdest night (TNn)
19233.3 C (37.9 F)
19255.0 C (41.0 F)
19262.2 C (36.0 F)
19274.4 C (39.9 F)
19282.2 C (36.0 F)
1929-6.1 C (21.0 F)
1930-6.1 C (21.0 F)
19310.6 C (33.1 F)
19397.2 C (45.0 F)
19428.9 C (48.0 F)
19433.9 C (39.0 F)
19453.3 C (37.9 F)
19463.3 C (37.9 F)
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
19612.8 C (37.0 F)
19620.6 C (33.1 F)
19631.7 C (35.1 F)
19642.8 C (37.0 F)
19652.8 C (37.0 F)
19663.9 C (39.0 F)
19670.6 C (33.1 F)
19681.7 C (35.1 F)
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
19786.7 C (44.1 F)
19791.7 C (35.1 F)
19802.8 C (37.0 F)
19810.6 C (33.1 F)
19820.6 C (33.1 F)
19831.7 C (35.1 F)
19842.8 C (37.0 F)
19851.7 C (35.1 F)
19860.6 C (33.1 F)
19870.6 C (33.1 F)
19880.6 C (33.1 F)
19893.9 C (39.0 F)
19901.7 C (35.1 F)
19912.8 C (37.0 F)
19923.9 C (39.0 F)
1993-2.2 C (28.0 F)
19955.0 C (41.0 F)
19962.8 C (37.0 F)
19971.1 C (34.0 F)
19980.0 C (32.0 F)
19991.7 C (35.1 F)
20003.3 C (37.9 F)
20015.0 C (41.0 F)
20023.9 C (39.0 F)
20032.8 C (37.0 F)
20042.8 C (37.0 F)
20055.0 C (41.0 F)
20062.2 C (36.0 F)
20075.0 C (41.0 F)
20083.9 C (39.0 F)
20094.4 C (39.9 F)
2010-1.7 C (28.9 F)
20110.0 C (32.0 F)
20123.9 C (39.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ameca by year The wettest day of the year at Ameca, 1923 to 2012. The record is 254.8 mm (10.0 in) in 1959, marked on the chart; the median year is 53.6 mm (2.1 in). 01002003001940196019802000Record: 254.8 mm (10.0 in) in 1959
The wettest day of the year at Ameca, 1923 to 2012. The record is 254.8 mm (10.0 in) in 1959, marked on the chart; the median year is 53.6 mm (2.1 in).
Wettest day (Rx1day) at Ameca by year
YearWettest day (Rx1day)
192369.1 mm (2.7 in)
192551.3 mm (2.0 in)
192654.1 mm (2.1 in)
192763.0 mm (2.5 in)
192842.4 mm (1.7 in)
192939.1 mm (1.5 in)
193056.9 mm (2.2 in)
1931103.1 mm (4.1 in)
193946.5 mm (1.8 in)
194266.8 mm (2.6 in)
194315.5 mm (0.6 in)
19452.3 mm (0.09 in)
194645.5 mm (1.8 in)
194747.8 mm (1.9 in)
194846.7 mm (1.8 in)
194936.6 mm (1.4 in)
195097.3 mm (3.8 in)
195159.9 mm (2.4 in)
195252.8 mm (2.1 in)
195370.4 mm (2.8 in)
195453.8 mm (2.1 in)
1955111.8 mm (4.4 in)
195653.8 mm (2.1 in)
195762.0 mm (2.4 in)
195833.8 mm (1.3 in)
1959254.8 mm (10.0 in)
196069.9 mm (2.8 in)
196134.0 mm (1.3 in)
196255.9 mm (2.2 in)
196347.5 mm (1.9 in)
196437.3 mm (1.5 in)
196536.3 mm (1.4 in)
196647.8 mm (1.9 in)
196751.3 mm (2.0 in)
196869.9 mm (2.8 in)
196946.0 mm (1.8 in)
197041.4 mm (1.6 in)
197153.3 mm (2.1 in)
197254.9 mm (2.2 in)
197340.4 mm (1.6 in)
197453.6 mm (2.1 in)
197549.0 mm (1.9 in)
197647.2 mm (1.9 in)
197770.1 mm (2.8 in)
197843.4 mm (1.7 in)
197945.0 mm (1.8 in)
198046.0 mm (1.8 in)
198186.9 mm (3.4 in)
198265.3 mm (2.6 in)
198357.7 mm (2.3 in)
198431.5 mm (1.2 in)
198556.1 mm (2.2 in)
198651.3 mm (2.0 in)
198751.8 mm (2.0 in)
198858.9 mm (2.3 in)
198967.1 mm (2.6 in)
199042.9 mm (1.7 in)
199128.2 mm (1.1 in)
199270.1 mm (2.8 in)
199319.6 mm (0.8 in)
1995100.8 mm (4.0 in)
199654.1 mm (2.1 in)
199772.4 mm (2.9 in)
199856.4 mm (2.2 in)
199970.6 mm (2.8 in)
200058.7 mm (2.3 in)
200152.6 mm (2.1 in)
200259.9 mm (2.4 in)
200358.4 mm (2.3 in)
200453.6 mm (2.1 in)
200547.0 mm (1.9 in)
200653.1 mm (2.1 in)
200754.4 mm (2.1 in)
200834.5 mm (1.4 in)
200965.8 mm (2.6 in)
201098.6 mm (3.9 in)
201157.2 mm (2.3 in)
20120.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ameca by year The wettest five days of the year at Ameca, 1923 to 2012. The record is 434.4 mm (17.1 in) in 1959, marked on the chart; the median year is 101.4 mm (4.0 in). 02004006001940196019802000Record: 434.4 mm (17.1 in) in 1959
The wettest five days of the year at Ameca, 1923 to 2012. The record is 434.4 mm (17.1 in) in 1959, marked on the chart; the median year is 101.4 mm (4.0 in).
Wettest five days (Rx5day) at Ameca by year
YearWettest five days (Rx5day)
1923106.5 mm (4.2 in)
192588.9 mm (3.5 in)
192688.8 mm (3.5 in)
1927101.6 mm (4.0 in)
192872.1 mm (2.8 in)
1929113.6 mm (4.5 in)
193071.9 mm (2.8 in)
1931197.7 mm (7.8 in)
193967.9 mm (2.7 in)
1942106.9 mm (4.2 in)
194315.5 mm (0.6 in)
19454.3 mm (0.17 in)
194670.2 mm (2.8 in)
194793.1 mm (3.7 in)
1948115.6 mm (4.6 in)
194974.4 mm (2.9 in)
1950159.3 mm (6.3 in)
1951101.4 mm (4.0 in)
195280.8 mm (3.2 in)
1953122.0 mm (4.8 in)
1954116.3 mm (4.6 in)
1955154.5 mm (6.1 in)
1956161.1 mm (6.3 in)
1957129.1 mm (5.1 in)
195888.4 mm (3.5 in)
1959434.4 mm (17.1 in)
1960213.6 mm (8.4 in)
196175.4 mm (3.0 in)
1962132.3 mm (5.2 in)
196397.6 mm (3.8 in)
196487.8 mm (3.5 in)
196596.5 mm (3.8 in)
196669.3 mm (2.7 in)
196783.6 mm (3.3 in)
1968140.3 mm (5.5 in)
196983.1 mm (3.3 in)
1970129.4 mm (5.1 in)
1971124.1 mm (4.9 in)
197291.4 mm (3.6 in)
197376.5 mm (3.0 in)
1974143.1 mm (5.6 in)
1975114.2 mm (4.5 in)
197698.8 mm (3.9 in)
1977125.7 mm (4.9 in)
197882.5 mm (3.2 in)
1979115.6 mm (4.6 in)
1980118.9 mm (4.7 in)
1981130.6 mm (5.1 in)
1982115.7 mm (4.6 in)
1983128.0 mm (5.0 in)
198468.1 mm (2.7 in)
198595.5 mm (3.8 in)
198667.4 mm (2.7 in)
1987108.0 mm (4.3 in)
1988157.0 mm (6.2 in)
198993.8 mm (3.7 in)
199076.3 mm (3.0 in)
199163.6 mm (2.5 in)
1992151.5 mm (6.0 in)
199319.6 mm (0.8 in)
1995130.5 mm (5.1 in)
1996124.4 mm (4.9 in)
1997111.0 mm (4.4 in)
199895.0 mm (3.7 in)
1999127.5 mm (5.0 in)
2000101.4 mm (4.0 in)
200188.5 mm (3.5 in)
2002112.6 mm (4.4 in)
200385.6 mm (3.4 in)
2004122.0 mm (4.8 in)
2005124.7 mm (4.9 in)
200677.4 mm (3.0 in)
200770.8 mm (2.8 in)
200892.0 mm (3.6 in)
200984.1 mm (3.3 in)
2010139.2 mm (5.5 in)
2011106.8 mm (4.2 in)
20120.0 mm (0.00 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ameca by year The longest dry spell of the year at Ameca, 1923 to 2012. The record is 161 days in 2011, marked on the chart; the median year is 89 days. 0501001502001940196019802000Record: 161 days in 2011
The longest dry spell of the year at Ameca, 1923 to 2012. The record is 161 days in 2011, marked on the chart; the median year is 89 days.
Longest dry spell (CDD) at Ameca by year
YearLongest dry spell (CDD)
192340 days
192525 days
1926122 days
192770 days
192849 days
1929126 days
1930108 days
193179 days
193990 days
194222 days
194341 days
194514 days
194689 days
194778 days
194825 days
1949135 days
195078 days
195175 days
1952108 days
195368 days
1954150 days
1955120 days
1956112 days
1957102 days
195855 days
195969 days
1960150 days
196168 days
196270 days
196357 days
1964112 days
196566 days
196656 days
1967123 days
196851 days
1969147 days
197098 days
1971115 days
1972103 days
197399 days
197469 days
1975108 days
197665 days
197752 days
197856 days
1979101 days
198078 days
198178 days
1982109 days
198373 days
198492 days
198579 days
1986143 days
198788 days
198896 days
1989114 days
199076 days
1991121 days
199268 days
1993103 days
199543 days
1996136 days
199750 days
1998106 days
1999139 days
2000148 days
200180 days
200287 days
200371 days
2004103 days
2005109 days
2006125 days
200754 days
2008104 days
2009113 days
2010110 days
2011161 days
201227 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

66 years, 1926 to 2011

A day with at least 52.4 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 158.4 mm (6.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Ameca: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years52.4 mm (2.1 in)
5 years70.0 mm (2.8 in)
10 years85.1 mm (3.4 in)
25 years109.2 mm (4.3 in)
50 years131.5 mm (5.2 in)
100 years158.4 mm (6.2 in)Longer than the 66 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, 66 years of values from 1926 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: 254.8 mm (10.0 in) in 1959; 111.8 mm (4.4 in) in 1955; 103.1 mm (4.1 in) in 1931.

Download the Data

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