Santa Maria Jacatepec Weather Records (MXN00020042)
Record envelope, standing records and threshold days for Santa Maria Jacatepec (MXN00020042), Mexico, with 58 years of record.
Key Facts for Santa Maria Jacatepec
- Santa Maria Jacatepec (MXN00020042) is a weather station in Mexico at 17.87 latitude and -96.20 longitude, 47 m (154 ft) above sea level.
- The station reports from 1953 to 2010, 58 years of record.
- 1,464 records set at Santa Maria Jacatepec still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Santa Maria Jacatepec set a daily record high maximum temperature of 31.7 C (89.1 F) on 31 December 2010.
About the Station
- Location: Mexico, 17.87 latitude, -96.20 longitude.
- Elevation: 47 m (154 ft).
- Period of record: 1953 to 2010, 58 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 35.6 C (96.1 F) | 8.9 C (48.0 F) | n/a | n/a |
| Feb | 38.9 C (102.0 F) | 7.8 C (46.0 F) | n/a | n/a |
| Mar | 41.1 C (106.0 F) | 10.0 C (50.0 F) | n/a | n/a |
| Apr | 42.8 C (109.0 F) | 10.6 C (51.1 F) | n/a | n/a |
| May | 42.2 C (108.0 F) | 16.7 C (62.1 F) | n/a | n/a |
| Jun | 43.3 C (109.9 F) | 17.8 C (64.0 F) | n/a | n/a |
| Jul | 37.8 C (100.0 F) | 17.8 C (64.0 F) | n/a | n/a |
| Aug | 36.7 C (98.1 F) | 18.3 C (64.9 F) | n/a | n/a |
| Sep | 36.7 C (98.1 F) | 17.2 C (63.0 F) | n/a | n/a |
| Oct | 36.7 C (98.1 F) | 13.3 C (55.9 F) | n/a | n/a |
| Nov | 35.0 C (95.0 F) | 10.0 C (50.0 F) | n/a | n/a |
| Dec | 33.9 C (93.0 F) | 7.8 C (46.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1953 | 56 |
| 1954 | 31 |
| 1955 | 47 |
| 1956 | 26 |
| 1957 | 35 |
| 1958 | 27 |
| 1959 | 25 |
| 1960 | 36 |
| 1961 | 29 |
| 1962 | 32 |
| 1963 | 23 |
| 1964 | 14 |
| 1965 | 23 |
| 1966 | 39 |
| 1967 | 38 |
| 1968 | 21 |
| 1969 | 26 |
| 1970 | 29 |
| 1971 | 37 |
| 1972 | 29 |
| 1973 | 43 |
| 1974 | 29 |
| 1975 | 23 |
| 1976 | 29 |
| 1977 | 34 |
| 1978 | 28 |
| 1979 | 31 |
| 1980 | 37 |
| 1981 | 27 |
| 1982 | 21 |
| 1983 | 27 |
| 1984 | 23 |
| 1991 | 46 |
| 1992 | 24 |
| 1993 | 28 |
| 1995 | 42 |
| 1997 | 39 |
| 1998 | 37 |
| 2000 | 17 |
| 2001 | 17 |
| 2002 | 31 |
| 2003 | 30 |
| 2004 | 31 |
| 2005 | 16 |
| 2006 | 29 |
| 2007 | 20 |
| 2008 | 27 |
| 2009 | 27 |
| 2010 | 28 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1995-05-19 | Record high minimum temperature | Record high minimum temperature 26.7 C (80.1 F) |
| 1995-05-22 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 1997-12-13 | Record low maximum temperature | Record low maximum temperature 14.4 C (57.9 F) |
| 1998-06-05 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
Wettest Day of Each Month
Jul: 324.4 mm (12.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 191.3 mm (7.5 in) | 1 January 2008 |
| Feb | 87.4 mm (3.4 in) | 23 February 1954 |
| Mar | 110.0 mm (4.3 in) | 19 March 2001 |
| Apr | 160.8 mm (6.3 in) | 20 April 1956 |
| May | 207.5 mm (8.2 in) | 31 May 2000 |
| Jun | 277.4 mm (10.9 in) | 20 June 1973 |
| Jul | 324.4 mm (12.8 in) | 25 July 1973 |
| Aug | 318.8 mm (12.6 in) | 22 August 2010 |
| Sep | 251.2 mm (9.9 in) | 6 September 1967 |
| Oct | 281.9 mm (11.1 in) | 14 October 1958 |
| Nov | 140.2 mm (5.5 in) | 20 November 2000 |
| Dec | 158.5 mm (6.2 in) | 14 December 1991 |
Period of Record Coverage
1953 to 2010| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1953 | 361 | 99% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 362 | 99% | Yes |
| 1959 | 362 | 99% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 362 | 99% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 364 | 99% | Yes |
| 1969 | 362 | 99% | Yes |
| 1970 | 333 | 91% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 363 | 99% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 363 | 99% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 362 | 99% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 361 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 362 | 99% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 330 | 90% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1995 | 363 | 99% | Yes |
| 1997 | 361 | 99% | Yes |
| 1998 | 211 | 58% | No |
| 2000 | 365 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 363 | 99% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 360 | 99% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 363 | 99% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 31 December 2010 | Santa Maria Jacatepec, MX | daily high max | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 33 years | 16 of 100 (Routine) |
| 30 December 2010 | Santa Maria Jacatepec, MX | daily high max (Tie) | 30.6 C (87.1 F) | tie | 3 years | 1 of 100 (Routine) |
| 26 December 2010 | Santa Maria Jacatepec, MX | daily low max | 18.3 C (64.9 F) | 0.6 C (1.1 F) | 53 years | 22 of 100 (Routine) |
| 23 December 2010 | Santa Maria Jacatepec, MX | daily high max (Tie) | 30.6 C (87.1 F) | tie | 8 years | 1 of 100 (Routine) |
| 18 December 2010 | Santa Maria Jacatepec, MX | daily rain | 40.4 mm (1.6 in) | 2.3 mm (0.09 in) | 45 years | 19 of 100 (Routine) |
| 16 November 2010 | Santa Maria Jacatepec, MX | daily high max | 32.8 C (91.0 F) | 0.6 C (1.1 F) | 9 years | 8 of 100 (Routine) |
| 7 November 2010 | Santa Maria Jacatepec, MX | daily low min | 12.8 C (55.0 F) | 0.5 C (0.9 F) | 44 years | 20 of 100 (Routine) |
| 6 November 2010 | Santa Maria Jacatepec, MX | daily low min | 12.8 C (55.0 F) | 2.2 C (4.0 F) | 44 years | 28 of 100 (Routine) |
| 29 October 2010 | Santa Maria Jacatepec, MX | daily low min | 14.4 C (57.9 F) | 1.7 C (3.1 F) | 52 years | 29 of 100 (Routine) |
| 8 October 2010 | Santa Maria Jacatepec, MX | daily low min | 17.2 C (63.0 F) | 0.6 C (1.1 F) | 31 years | 17 of 100 (Routine) |
| 7 October 2010 | Santa Maria Jacatepec, MX | daily low max | 20.0 C (68.0 F) | 2.8 C (5.0 F) | 29 years | 21 of 100 (Routine) |
| 6 October 2010 | Santa Maria Jacatepec, MX | daily low max | 20.6 C (69.1 F) | 3.3 C (5.9 F) | 35 years | 25 of 100 (Routine) |
| 27 September 2010 | Santa Maria Jacatepec, MX | daily rain | 176.3 mm (6.9 in) | 36.1 mm (1.4 in) | 4 years | 15 of 100 (Routine) |
| 26 September 2010 | Santa Maria Jacatepec, MX | daily rain | 172.2 mm (6.8 in) | 63.5 mm (2.5 in) | 40 years | 34 of 100 (Routine) |
| 26 September 2010 | Santa Maria Jacatepec, MX | daily low max | 22.8 C (73.0 F) | 1.1 C (2.0 F) | 19 years | 14 of 100 (Routine) |
| 9 September 2010 | Santa Maria Jacatepec, MX | daily high max (Tie) | 35.0 C (95.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 7 September 2010 | Santa Maria Jacatepec, MX | daily high max | 35.0 C (95.0 F) | 0.6 C (1.1 F) | 8 years | 9 of 100 (Routine) |
| 4 September 2010 | Santa Maria Jacatepec, MX | daily low max | 23.3 C (73.9 F) | 1.7 C (3.1 F) | 40 years | 23 of 100 (Routine) |
| 31 August 2010 | Santa Maria Jacatepec, MX | daily rain | 96.5 mm (3.8 in) | 4.3 mm (0.17 in) | 3 years | 6 of 100 (Routine) |
| 30 August 2010 | Santa Maria Jacatepec, MX | daily rain | 164.6 mm (6.5 in) | 17.5 mm (0.7 in) | 40 years | 21 of 100 (Routine) |
Climate Trend
46 complete years, 1953 to 2010| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1953 | 25.4 C | +0.41 C |
| 1954 | 24.7 C | -0.23 C |
| 1955 | 25.3 C | +0.31 C |
| 1956 | 24.5 C | -0.48 C |
| 1957 | 25.1 C | +0.15 C |
| 1958 | 24.6 C | -0.35 C |
| 1959 | 24.1 C | -0.85 C |
| 1960 | 24.1 C | -0.89 C |
| 1961 | 24.3 C | -0.64 C |
| 1962 | 24.4 C | -0.57 C |
| 1963 | 24.3 C | -0.68 C |
| 1964 | 24.4 C | -0.57 C |
| 1965 | 24.2 C | -0.73 C |
| 1966 | 23.6 C | -1.42 C |
| 1967 | 24.2 C | -0.77 C |
| 1968 | 24.2 C | -0.79 C |
| 1969 | 24.6 C | -0.36 C |
| 1971 | 24.5 C | -0.49 C |
| 1972 | 25.1 C | +0.14 C |
| 1973 | 24.8 C | -0.17 C |
| 1974 | 24.9 C | -0.05 C |
| 1975 | 25.0 C | 0.00 C |
| 1976 | 24.2 C | -0.80 C |
| 1977 | 25.0 C | +0.07 C |
| 1978 | 24.9 C | -0.07 C |
| 1979 | 24.9 C | -0.09 C |
| 1980 | 25.1 C | +0.10 C |
| 1981 | 25.1 C | +0.16 C |
| 1982 | 25.5 C | +0.49 C |
| 1983 | 25.3 C | +0.31 C |
| 1991 | 26.1 C | +1.11 C |
| 1992 | 25.4 C | +0.41 C |
| 1993 | 25.6 C | +0.66 C |
| 1995 | 26.0 C | +1.05 C |
| 1997 | 25.6 C | +0.65 C |
| 2000 | 25.4 C | +0.39 C |
| 2001 | 25.2 C | +0.18 C |
| 2002 | 25.5 C | +0.48 C |
| 2003 | 25.5 C | +0.50 C |
| 2004 | 25.3 C | +0.34 C |
| 2005 | 25.3 C | +0.28 C |
| 2006 | 25.6 C | +0.62 C |
| 2007 | 25.8 C | +0.84 C |
| 2008 | 25.6 C | +0.66 C |
| 2009 | 25.8 C | +0.87 C |
| 2010 | 24.9 C | -0.11 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1953 to 2010. In Fahrenheit: 0.4 F (0.3 to 0.5) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1953 to 2010 | 46 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.4) per decade | 0.4 F (0.2 to 0.6) per decade | 1953 to 2010 | 46 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.2 to 0.5) per decade | 1953 to 2010 | 46 | Rise |
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
1953 to 2010| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1998 | 40.0 C (104.0 F) | 49 |
| Coldest night (TNn) | 7.8 C (46.0 F) | 1960 | 11.1 C (52.0 F) | 49 |
| Wettest day (Rx1day) | 324.4 mm (12.8 in) | 1973 | 194.1 mm (7.6 in) | 49 |
| Wettest five days (Rx5day) | 706.5 mm (27.8 in) | 1969 | 387.1 mm (15.2 in) | 49 |
| Longest dry spell (CDD) | 46 days | 1961 | 20 days | 49 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1953 | 42.8 C (109.0 F) |
| 1954 | 40.0 C (104.0 F) |
| 1955 | 42.2 C (108.0 F) |
| 1956 | 38.9 C (102.0 F) |
| 1957 | 40.0 C (104.0 F) |
| 1958 | 40.0 C (104.0 F) |
| 1959 | 37.2 C (99.0 F) |
| 1960 | 37.8 C (100.0 F) |
| 1961 | 40.0 C (104.0 F) |
| 1962 | 40.0 C (104.0 F) |
| 1963 | 39.4 C (102.9 F) |
| 1964 | 41.7 C (107.1 F) |
| 1965 | 39.4 C (102.9 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 40.0 C (104.0 F) |
| 1968 | 38.9 C (102.0 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 38.9 C (102.0 F) |
| 1971 | 38.9 C (102.0 F) |
| 1972 | 40.0 C (104.0 F) |
| 1973 | 41.7 C (107.1 F) |
| 1974 | 41.1 C (106.0 F) |
| 1975 | 40.0 C (104.0 F) |
| 1976 | 38.9 C (102.0 F) |
| 1977 | 41.1 C (106.0 F) |
| 1978 | 42.2 C (108.0 F) |
| 1979 | 41.7 C (107.1 F) |
| 1980 | 41.7 C (107.1 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 40.0 C (104.0 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 41.7 C (107.1 F) |
| 1991 | 41.7 C (107.1 F) |
| 1992 | 37.8 C (100.0 F) |
| 1993 | 40.0 C (104.0 F) |
| 1995 | 41.7 C (107.1 F) |
| 1997 | 38.9 C (102.0 F) |
| 1998 | 43.3 C (109.9 F) |
| 2000 | 38.9 C (102.0 F) |
| 2001 | 38.9 C (102.0 F) |
| 2002 | 41.7 C (107.1 F) |
| 2003 | 41.7 C (107.1 F) |
| 2004 | 38.3 C (100.9 F) |
| 2005 | 42.8 C (109.0 F) |
| 2006 | 41.7 C (107.1 F) |
| 2007 | 40.0 C (104.0 F) |
| 2008 | 41.7 C (107.1 F) |
| 2009 | 40.6 C (105.1 F) |
| 2010 | 41.1 C (106.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1953 | 10.6 C (51.1 F) |
| 1954 | 8.9 C (48.0 F) |
| 1955 | 11.7 C (53.1 F) |
| 1956 | 10.0 C (50.0 F) |
| 1957 | 10.0 C (50.0 F) |
| 1958 | 10.0 C (50.0 F) |
| 1959 | 13.3 C (55.9 F) |
| 1960 | 7.8 C (46.0 F) |
| 1961 | 11.1 C (52.0 F) |
| 1962 | 8.9 C (48.0 F) |
| 1963 | 9.4 C (48.9 F) |
| 1964 | 12.2 C (54.0 F) |
| 1965 | 12.2 C (54.0 F) |
| 1966 | 8.9 C (48.0 F) |
| 1967 | 10.0 C (50.0 F) |
| 1968 | 10.0 C (50.0 F) |
| 1969 | 13.3 C (55.9 F) |
| 1970 | 10.0 C (50.0 F) |
| 1971 | 12.8 C (55.0 F) |
| 1972 | 12.8 C (55.0 F) |
| 1973 | 10.0 C (50.0 F) |
| 1974 | 12.2 C (54.0 F) |
| 1975 | 11.7 C (53.1 F) |
| 1976 | 8.9 C (48.0 F) |
| 1977 | 10.0 C (50.0 F) |
| 1978 | 11.7 C (53.1 F) |
| 1979 | 10.6 C (51.1 F) |
| 1980 | 10.6 C (51.1 F) |
| 1981 | 11.7 C (53.1 F) |
| 1982 | 11.7 C (53.1 F) |
| 1983 | 10.0 C (50.0 F) |
| 1984 | 12.8 C (55.0 F) |
| 1991 | 12.2 C (54.0 F) |
| 1992 | 8.9 C (48.0 F) |
| 1993 | 11.1 C (52.0 F) |
| 1995 | 14.4 C (57.9 F) |
| 1997 | 7.8 C (46.0 F) |
| 1998 | 11.7 C (53.1 F) |
| 2000 | 11.7 C (53.1 F) |
| 2001 | 12.2 C (54.0 F) |
| 2002 | 11.1 C (52.0 F) |
| 2003 | 12.2 C (54.0 F) |
| 2004 | 13.3 C (55.9 F) |
| 2005 | 12.2 C (54.0 F) |
| 2006 | 10.6 C (51.1 F) |
| 2007 | 13.9 C (57.0 F) |
| 2008 | 13.3 C (55.9 F) |
| 2009 | 13.3 C (55.9 F) |
| 2010 | 11.1 C (52.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1953 | 172.0 mm (6.8 in) |
| 1954 | 227.8 mm (9.0 in) |
| 1955 | 193.3 mm (7.6 in) |
| 1956 | 160.8 mm (6.3 in) |
| 1957 | 127.0 mm (5.0 in) |
| 1958 | 281.9 mm (11.1 in) |
| 1959 | 232.9 mm (9.2 in) |
| 1960 | 150.1 mm (5.9 in) |
| 1961 | 166.6 mm (6.6 in) |
| 1962 | 235.5 mm (9.3 in) |
| 1963 | 150.1 mm (5.9 in) |
| 1964 | 198.1 mm (7.8 in) |
| 1965 | 189.5 mm (7.5 in) |
| 1966 | 136.1 mm (5.4 in) |
| 1967 | 251.2 mm (9.9 in) |
| 1968 | 197.4 mm (7.8 in) |
| 1969 | 249.9 mm (9.8 in) |
| 1970 | 131.6 mm (5.2 in) |
| 1971 | 163.1 mm (6.4 in) |
| 1972 | 96.5 mm (3.8 in) |
| 1973 | 324.4 mm (12.8 in) |
| 1974 | 206.0 mm (8.1 in) |
| 1975 | 147.8 mm (5.8 in) |
| 1976 | 227.3 mm (8.9 in) |
| 1977 | 138.7 mm (5.5 in) |
| 1978 | 174.8 mm (6.9 in) |
| 1979 | 176.5 mm (6.9 in) |
| 1980 | 194.1 mm (7.6 in) |
| 1981 | 216.2 mm (8.5 in) |
| 1982 | 212.9 mm (8.4 in) |
| 1983 | 221.7 mm (8.7 in) |
| 1984 | 173.5 mm (6.8 in) |
| 1991 | 182.4 mm (7.2 in) |
| 1992 | 313.2 mm (12.3 in) |
| 1993 | 238.5 mm (9.4 in) |
| 1995 | 169.9 mm (6.7 in) |
| 1997 | 151.9 mm (6.0 in) |
| 1998 | 183.9 mm (7.2 in) |
| 2000 | 207.5 mm (8.2 in) |
| 2001 | 213.4 mm (8.4 in) |
| 2002 | 127.0 mm (5.0 in) |
| 2003 | 158.0 mm (6.2 in) |
| 2004 | 235.5 mm (9.3 in) |
| 2005 | 272.8 mm (10.7 in) |
| 2006 | 213.6 mm (8.4 in) |
| 2007 | 106.4 mm (4.2 in) |
| 2008 | 220.2 mm (8.7 in) |
| 2009 | 235.0 mm (9.3 in) |
| 2010 | 318.8 mm (12.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1953 | 337.6 mm (13.3 in) |
| 1954 | 446.8 mm (17.6 in) |
| 1955 | 445.9 mm (17.6 in) |
| 1956 | 310.2 mm (12.2 in) |
| 1957 | 359.2 mm (14.1 in) |
| 1958 | 633.8 mm (25.0 in) |
| 1959 | 473.6 mm (18.6 in) |
| 1960 | 414.8 mm (16.3 in) |
| 1961 | 390.5 mm (15.4 in) |
| 1962 | 372.0 mm (14.6 in) |
| 1963 | 320.3 mm (12.6 in) |
| 1964 | 582.9 mm (22.9 in) |
| 1965 | 380.8 mm (15.0 in) |
| 1966 | 263.9 mm (10.4 in) |
| 1967 | 323.4 mm (12.7 in) |
| 1968 | 387.1 mm (15.2 in) |
| 1969 | 706.5 mm (27.8 in) |
| 1970 | 315.1 mm (12.4 in) |
| 1971 | 322.6 mm (12.7 in) |
| 1972 | 348.3 mm (13.7 in) |
| 1973 | 521.0 mm (20.5 in) |
| 1974 | 351.8 mm (13.9 in) |
| 1975 | 451.7 mm (17.8 in) |
| 1976 | 418.7 mm (16.5 in) |
| 1977 | 255.1 mm (10.0 in) |
| 1978 | 352.9 mm (13.9 in) |
| 1979 | 341.7 mm (13.5 in) |
| 1980 | 341.9 mm (13.5 in) |
| 1981 | 529.8 mm (20.9 in) |
| 1982 | 366.3 mm (14.4 in) |
| 1983 | 398.0 mm (15.7 in) |
| 1984 | 424.0 mm (16.7 in) |
| 1991 | 548.3 mm (21.6 in) |
| 1992 | 460.2 mm (18.1 in) |
| 1993 | 486.9 mm (19.2 in) |
| 1995 | 392.2 mm (15.4 in) |
| 1997 | 348.4 mm (13.7 in) |
| 1998 | 304.8 mm (12.0 in) |
| 2000 | 424.0 mm (16.7 in) |
| 2001 | 435.7 mm (17.2 in) |
| 2002 | 286.3 mm (11.3 in) |
| 2003 | 310.1 mm (12.2 in) |
| 2004 | 350.5 mm (13.8 in) |
| 2005 | 489.5 mm (19.3 in) |
| 2006 | 387.1 mm (15.2 in) |
| 2007 | 229.6 mm (9.0 in) |
| 2008 | 539.3 mm (21.2 in) |
| 2009 | 518.7 mm (20.4 in) |
| 2010 | 636.1 mm (25.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1953 | 26 days |
| 1954 | 22 days |
| 1955 | 27 days |
| 1956 | 17 days |
| 1957 | 19 days |
| 1958 | 29 days |
| 1959 | 8 days |
| 1960 | 13 days |
| 1961 | 46 days |
| 1962 | 30 days |
| 1963 | 38 days |
| 1964 | 26 days |
| 1965 | 28 days |
| 1966 | 20 days |
| 1967 | 22 days |
| 1968 | 13 days |
| 1969 | 19 days |
| 1970 | 20 days |
| 1971 | 23 days |
| 1972 | 24 days |
| 1973 | 20 days |
| 1974 | 15 days |
| 1975 | 27 days |
| 1976 | 21 days |
| 1977 | 16 days |
| 1978 | 20 days |
| 1979 | 11 days |
| 1980 | 15 days |
| 1981 | 18 days |
| 1982 | 19 days |
| 1983 | 38 days |
| 1984 | 15 days |
| 1991 | 15 days |
| 1992 | 12 days |
| 1993 | 21 days |
| 1995 | 17 days |
| 1997 | 13 days |
| 1998 | 37 days |
| 2000 | 19 days |
| 2001 | 25 days |
| 2002 | 32 days |
| 2003 | 32 days |
| 2004 | 12 days |
| 2005 | 16 days |
| 2006 | 24 days |
| 2007 | 37 days |
| 2008 | 16 days |
| 2009 | 18 days |
| 2010 | 22 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
48 years, 1953 to 2010A day with at least 193.2 mm (7.6 in) of rain is expected about once in 2 years. A day with at least 338.7 mm (13.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 193.2 mm (7.6 in) | |
| 5 years | 241.3 mm (9.5 in) | |
| 10 years | 269.1 mm (10.6 in) | |
| 25 years | 300.0 mm (11.8 in) | |
| 50 years | 320.4 mm (12.6 in) | Longer than the 48 years of record |
| 100 years | 338.7 mm (13.3 in) | Longer than the 48 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, 48 years of values from 1953 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: 324.4 mm (12.8 in) in 1973; 318.8 mm (12.6 in) in 2010; 313.2 mm (12.3 in) in 1992.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Santa Maria Jacatepec, at 1967 and 1981. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.3 C (0.5 F) higher than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1981 ran 0.5 C (0.8 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1967 | +0.3 | +0.5 | possible | 5 |
| 1981 | -0.5 | -0.8 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
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).