Presa Tepetitlan Weather Records (MXN00015076)
Record envelope, standing records and threshold days for Presa Tepetitlan (MXN00015076), Mexico, with 50 years of record.
Key Facts for Presa Tepetitlan
- Presa Tepetitlan (MXN00015076) is a weather station in Mexico at 19.65 latitude and -99.95 longitude, 2,564 m (8,412 ft) above sea level.
- The station reports from 1961 to 2010, 50 years of record.
- 1,464 records set at Presa Tepetitlan still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Presa Tepetitlan set a daily record low minimum temperature of 1.7 C (35.1 F) on 25 August 2010.
About the Station
- Location: Mexico, 19.65 latitude, -99.95 longitude.
- Elevation: 2,564 m (8,412 ft).
- Period of record: 1961 to 2010, 50 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 | 27.8 C (82.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Feb | 31.7 C (89.1 F) | -10.0 C (14.0 F) | n/a | n/a |
| Mar | 31.7 C (89.1 F) | -6.1 C (21.0 F) | n/a | n/a |
| Apr | 30.0 C (86.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| May | 30.6 C (87.1 F) | -1.7 C (28.9 F) | n/a | n/a |
| Jun | 29.4 C (84.9 F) | 0.0 C (32.0 F) | n/a | n/a |
| Jul | 27.8 C (82.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Aug | 25.0 C (77.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Sep | 25.6 C (78.1 F) | -2.8 C (27.0 F) | n/a | n/a |
| Oct | 28.9 C (84.0 F) | -7.2 C (19.0 F) | n/a | n/a |
| Nov | 25.6 C (78.1 F) | -10.0 C (14.0 F) | n/a | n/a |
| Dec | 25.0 C (77.0 F) | -6.7 C (19.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1961 | 43 |
| 1962 | 20 |
| 1963 | 52 |
| 1964 | 53 |
| 1965 | 27 |
| 1966 | 26 |
| 1967 | 21 |
| 1968 | 19 |
| 1969 | 52 |
| 1970 | 26 |
| 1971 | 24 |
| 1972 | 28 |
| 1973 | 39 |
| 1974 | 25 |
| 1975 | 25 |
| 1976 | 34 |
| 1977 | 21 |
| 1978 | 25 |
| 1979 | 19 |
| 1980 | 17 |
| 1981 | 23 |
| 1982 | 17 |
| 1983 | 31 |
| 1984 | 7 |
| 1985 | 8 |
| 1986 | 17 |
| 1987 | 17 |
| 1988 | 11 |
| 1989 | 2 |
| 1991 | 10 |
| 1992 | 43 |
| 1993 | 37 |
| 1994 | 26 |
| 1995 | 25 |
| 1996 | 43 |
| 1997 | 37 |
| 1998 | 36 |
| 1999 | 10 |
| 2000 | 7 |
| 2001 | 2 |
| 2002 | 46 |
| 2003 | 23 |
| 2004 | 23 |
| 2005 | 28 |
| 2006 | 128 |
| 2007 | 38 |
| 2008 | 40 |
| 2009 | 64 |
| 2010 | 69 |
All-Time Record Progression
9 new records| Date | Kind | Detail |
|---|---|---|
| 1992-02-05 | Record low minimum temperature | Record low minimum temperature -7.8 C (18.0 F) |
| 2004-02-18 | Record low minimum temperature | Record low minimum temperature -10.0 C (14.0 F) |
| 2005-07-18 | Record daily precipitation | Record daily precipitation 69.3 mm (2.7 in) |
| 2006-02-22 | Record high maximum temperature | Record high maximum temperature 31.7 C (89.1 F) |
| 2009-02-07 | Record high minimum temperature | Record high minimum temperature 15.0 C (59.0 F) |
| 2009-06-02 | Record daily precipitation | Record daily precipitation 72.9 mm (2.9 in) |
| 2009-08-02 | Record high minimum temperature | Record high minimum temperature 15.6 C (60.1 F) |
| 2009-08-05 | Record high minimum temperature | Record high minimum temperature 16.7 C (62.1 F) |
| 2010-01-19 | Record low maximum temperature | Record low maximum temperature 3.9 C (39.0 F) |
Wettest Day of Each Month
Jun: 72.9 mm (2.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 38.1 mm (1.5 in) | 28 January 1992 |
| Feb | 66.8 mm (2.6 in) | 4 February 2010 |
| Mar | 34.3 mm (1.4 in) | 21 March 1963 |
| Apr | 41.4 mm (1.6 in) | 25 April 2001 |
| May | 44.2 mm (1.7 in) | 30 May 1975 |
| Jun | 72.9 mm (2.9 in) | 2 June 2009 |
| Jul | 69.3 mm (2.7 in) | 18 July 2005 |
| Aug | 54.4 mm (2.1 in) | 20 August 2009 |
| Sep | 55.9 mm (2.2 in) | 1 September 1962 |
| Oct | 53.8 mm (2.1 in) | 31 October 1977 |
| Nov | 32.8 mm (1.3 in) | 28 November 1973 |
| Dec | 20.6 mm (0.8 in) | 30 December 1995 |
Period of Record Coverage
1961 to 2010| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 334 | 92% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 363 | 99% | Yes |
| 1985 | 328 | 90% | No |
| 1986 | 363 | 99% | Yes |
| 1987 | 344 | 94% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 252 | 69% | No |
| 1991 | 238 | 65% | No |
| 1992 | 365 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 355 | 97% | Yes |
| 1995 | 323 | 88% | No |
| 1996 | 360 | 98% | Yes |
| 1997 | 360 | 99% | Yes |
| 1998 | 347 | 95% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 363 | 99% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 355 | 97% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 354 | 97% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 351 | 96% | Yes |
| 2009 | 240 | 66% | No |
| 2010 | 116 | 32% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 25 August 2010 | Presa Tepetitlan, MX | daily low min | 1.7 C (35.1 F) | 1.1 C (2.0 F) | 12 years | 12 of 100 (Routine) |
| 24 August 2010 | Presa Tepetitlan, MX | daily low min | 2.2 C (36.0 F) | 2.2 C (4.0 F) | 16 years | 19 of 100 (Routine) |
| 29 July 2010 | Presa Tepetitlan, MX | daily rain | 23.9 mm (0.9 in) | 2.3 mm (0.09 in) | 11 years | 10 of 100 (Routine) |
| 8 June 2010 | Presa Tepetitlan, MX | daily low min (Tie) | 3.9 C (39.0 F) | tie | 3 years | 1 of 100 (Routine) |
| 17 May 2010 | Presa Tepetitlan, MX | daily low max | 10.6 C (51.1 F) | 7.2 C (13.0 F) | 8 years | 33 of 100 (Routine) |
| 16 May 2010 | Presa Tepetitlan, MX | monthly low max (Tie) | 10.0 C (50.0 F) | tie | 0 years | 3 of 100 (Routine) |
| 15 May 2010 | Presa Tepetitlan, MX | daily low max | 11.7 C (53.1 F) | 6.6 C (11.9 F) | 36 years | 39 of 100 (Notable) |
| 14 May 2010 | Presa Tepetitlan, MX | daily low max | 11.7 C (53.1 F) | 6.1 C (11.0 F) | 8 years | 29 of 100 (Routine) |
| 13 May 2010 | Presa Tepetitlan, MX | monthly low max (Tie) | 10.0 C (50.0 F) | tie | 0 years | 3 of 100 (Routine) |
| 11 May 2010 | Presa Tepetitlan, MX | daily low max | 11.7 C (53.1 F) | 3.3 C (5.9 F) | 35 years | 26 of 100 (Routine) |
| 10 May 2010 | Presa Tepetitlan, MX | daily low max | 10.6 C (51.1 F) | 5.5 C (9.9 F) | 8 years | 26 of 100 (Routine) |
| 9 May 2010 | Presa Tepetitlan, MX | monthly low max (Tie) | 10.0 C (50.0 F) | tie | 0 years | 3 of 100 (Routine) |
| 8 May 2010 | Presa Tepetitlan, MX | monthly low max (Tie) | 10.0 C (50.0 F) | tie | 0 years | 3 of 100 (Routine) |
| 3 May 2010 | Presa Tepetitlan, MX | daily low max | 11.7 C (53.1 F) | 3.3 C (5.9 F) | 8 years | 18 of 100 (Routine) |
| 1 May 2010 | Presa Tepetitlan, MX | monthly low max | 10.0 C (50.0 F) | 3.9 C (7.0 F) | 8 years | 31 of 100 (Routine) |
| 30 April 2010 | Presa Tepetitlan, MX | daily low max | 12.8 C (55.0 F) | 5.5 C (9.9 F) | 44 years | 36 of 100 (Notable) |
| 29 April 2010 | Presa Tepetitlan, MX | daily low max | 12.8 C (55.0 F) | 3.9 C (7.0 F) | 44 years | 31 of 100 (Routine) |
| 28 April 2010 | Presa Tepetitlan, MX | daily low max | 14.4 C (57.9 F) | 3.4 C (6.1 F) | 23 years | 22 of 100 (Routine) |
| 27 April 2010 | Presa Tepetitlan, MX | monthly low max (Tie) | 10.0 C (50.0 F) | tie | 29 years | 5 of 100 (Routine) |
| 26 April 2010 | Presa Tepetitlan, MX | daily low max | 10.6 C (51.1 F) | 9.4 C (16.9 F) | 40 years | 48 of 100 (Notable) |
Climate Trend
40 complete years, 1961 to 2007| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1961 | 13.6 C | +0.77 C |
| 1962 | 13.8 C | +1.04 C |
| 1963 | 13.8 C | +1.02 C |
| 1964 | 12.9 C | +0.15 C |
| 1965 | 13.5 C | +0.71 C |
| 1966 | 13.1 C | +0.35 C |
| 1967 | 13.3 C | +0.48 C |
| 1968 | 13.2 C | +0.46 C |
| 1970 | 13.7 C | +0.90 C |
| 1971 | 13.0 C | +0.23 C |
| 1972 | 13.1 C | +0.31 C |
| 1973 | 13.0 C | +0.23 C |
| 1974 | 12.8 C | +0.03 C |
| 1975 | 12.9 C | +0.10 C |
| 1976 | 13.2 C | +0.41 C |
| 1977 | 13.3 C | +0.54 C |
| 1978 | 12.8 C | -0.03 C |
| 1979 | 13.3 C | +0.49 C |
| 1980 | 13.4 C | +0.63 C |
| 1981 | 13.4 C | +0.60 C |
| 1982 | 13.6 C | +0.83 C |
| 1983 | 13.5 C | +0.71 C |
| 1984 | 13.4 C | +0.60 C |
| 1986 | 13.3 C | +0.52 C |
| 1988 | 13.8 C | +1.04 C |
| 1992 | 11.1 C | -1.70 C |
| 1993 | 11.6 C | -1.21 C |
| 1994 | 12.1 C | -0.70 C |
| 1996 | 11.7 C | -1.11 C |
| 1997 | 11.6 C | -1.15 C |
| 1998 | 11.7 C | -1.10 C |
| 1999 | 11.6 C | -1.18 C |
| 2000 | 12.0 C | -0.76 C |
| 2001 | 11.5 C | -1.25 C |
| 2002 | 10.7 C | -2.12 C |
| 2003 | 12.3 C | -0.46 C |
| 2004 | 11.9 C | -0.88 C |
| 2005 | 11.9 C | -0.87 C |
| 2006 | 15.2 C | +2.45 C |
| 2007 | 11.7 C | -1.06 C |
The annual mean temperature here has fallen by 0.4 C (0.2 to 0.6) per decade over 1961 to 2007. In Fahrenheit: 0.7 F (0.4 to 1.0) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.4 C (-0.6 to -0.2) per decade | -0.7 F (-1.0 to -0.4) per decade | 1961 to 2007 | 40 | Fall |
| Mean daily maximum | 0.1 C (-0.1 to 0.4) per decade | 0.2 F (-0.2 to 0.7) per decade | 1961 to 2007 | 40 | Not clearly different from zero |
| Mean daily minimum | -0.9 C (-1.1 to -0.6) per decade | -1.6 F (-2.1 to -1.1) per decade | 1961 to 2007 | 40 | Fall |
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 2010| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 31.7 C (89.1 F) | 2006 | 28.3 C (82.9 F) | 49 |
| Coldest night (TNn) | -10.0 C (14.0 F) | 2004 | -5.0 C (23.0 F) | 49 |
| Wettest day (Rx1day) | 72.9 mm (2.9 in) | 2009 | 41.4 mm (1.6 in) | 49 |
| Wettest five days (Rx5day) | 128.6 mm (5.1 in) | 1962 | 81.7 mm (3.2 in) | 49 |
| Longest dry spell (CDD) | 141 days | 1998 | 55 days | 49 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1961 | 28.9 C (84.0 F) |
| 1962 | 28.3 C (82.9 F) |
| 1963 | 30.0 C (86.0 F) |
| 1964 | 30.0 C (86.0 F) |
| 1965 | 27.2 C (81.0 F) |
| 1966 | 28.3 C (82.9 F) |
| 1967 | 28.9 C (84.0 F) |
| 1968 | 27.2 C (81.0 F) |
| 1969 | 28.9 C (84.0 F) |
| 1970 | 29.4 C (84.9 F) |
| 1971 | 30.0 C (86.0 F) |
| 1972 | 26.7 C (80.1 F) |
| 1973 | 28.3 C (82.9 F) |
| 1974 | 27.2 C (81.0 F) |
| 1975 | 28.3 C (82.9 F) |
| 1976 | 26.1 C (79.0 F) |
| 1977 | 29.4 C (84.9 F) |
| 1978 | 29.4 C (84.9 F) |
| 1979 | 27.2 C (81.0 F) |
| 1980 | 27.8 C (82.0 F) |
| 1981 | 26.7 C (80.1 F) |
| 1982 | 28.9 C (84.0 F) |
| 1983 | 30.6 C (87.1 F) |
| 1984 | 28.9 C (84.0 F) |
| 1985 | 28.3 C (82.9 F) |
| 1986 | 27.2 C (81.0 F) |
| 1987 | 27.8 C (82.0 F) |
| 1988 | 29.4 C (84.9 F) |
| 1989 | 25.6 C (78.1 F) |
| 1991 | 29.4 C (84.9 F) |
| 1992 | 27.2 C (81.0 F) |
| 1993 | 29.4 C (84.9 F) |
| 1994 | 28.9 C (84.0 F) |
| 1995 | 29.4 C (84.9 F) |
| 1996 | 28.9 C (84.0 F) |
| 1997 | 27.2 C (81.0 F) |
| 1998 | 30.6 C (87.1 F) |
| 1999 | 27.2 C (81.0 F) |
| 2000 | 25.0 C (77.0 F) |
| 2001 | 25.0 C (77.0 F) |
| 2002 | 25.6 C (78.1 F) |
| 2003 | 30.0 C (86.0 F) |
| 2004 | 27.2 C (81.0 F) |
| 2005 | 29.4 C (84.9 F) |
| 2006 | 31.7 C (89.1 F) |
| 2007 | 28.9 C (84.0 F) |
| 2008 | 28.3 C (82.9 F) |
| 2009 | 29.4 C (84.9 F) |
| 2010 | 17.8 C (64.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1961 | -5.0 C (23.0 F) |
| 1962 | -3.9 C (25.0 F) |
| 1963 | -5.0 C (23.0 F) |
| 1964 | -0.6 C (30.9 F) |
| 1965 | -3.3 C (26.1 F) |
| 1966 | -5.6 C (21.9 F) |
| 1967 | -3.3 C (26.1 F) |
| 1968 | -5.0 C (23.0 F) |
| 1969 | -2.8 C (27.0 F) |
| 1970 | -3.9 C (25.0 F) |
| 1971 | -2.8 C (27.0 F) |
| 1972 | -2.8 C (27.0 F) |
| 1973 | -4.4 C (24.1 F) |
| 1974 | -5.0 C (23.0 F) |
| 1975 | -5.0 C (23.0 F) |
| 1976 | -3.9 C (25.0 F) |
| 1977 | -2.8 C (27.0 F) |
| 1978 | -1.7 C (28.9 F) |
| 1979 | -1.7 C (28.9 F) |
| 1980 | -5.0 C (23.0 F) |
| 1981 | -3.9 C (25.0 F) |
| 1982 | -3.3 C (26.1 F) |
| 1983 | -6.1 C (21.0 F) |
| 1984 | -1.1 C (30.0 F) |
| 1985 | -4.4 C (24.1 F) |
| 1986 | -7.2 C (19.0 F) |
| 1987 | -5.0 C (23.0 F) |
| 1988 | -6.7 C (19.9 F) |
| 1989 | -1.7 C (28.9 F) |
| 1991 | -2.2 C (28.0 F) |
| 1992 | -7.8 C (18.0 F) |
| 1993 | -6.7 C (19.9 F) |
| 1994 | -5.6 C (21.9 F) |
| 1995 | -5.6 C (21.9 F) |
| 1996 | -6.7 C (19.9 F) |
| 1997 | -6.7 C (19.9 F) |
| 1998 | -6.7 C (19.9 F) |
| 1999 | -5.6 C (21.9 F) |
| 2000 | -4.4 C (24.1 F) |
| 2001 | -3.9 C (25.0 F) |
| 2002 | -5.0 C (23.0 F) |
| 2003 | -6.7 C (19.9 F) |
| 2004 | -10.0 C (14.0 F) |
| 2005 | -8.9 C (16.0 F) |
| 2006 | -4.4 C (24.1 F) |
| 2007 | -7.2 C (19.0 F) |
| 2008 | -10.0 C (14.0 F) |
| 2009 | 0.0 C (32.0 F) |
| 2010 | 0.0 C (32.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1961 | 40.4 mm (1.6 in) |
| 1962 | 55.9 mm (2.2 in) |
| 1963 | 41.9 mm (1.6 in) |
| 1964 | 30.0 mm (1.2 in) |
| 1965 | 39.4 mm (1.6 in) |
| 1966 | 33.3 mm (1.3 in) |
| 1967 | 43.7 mm (1.7 in) |
| 1968 | 47.0 mm (1.9 in) |
| 1969 | 50.3 mm (2.0 in) |
| 1970 | 33.3 mm (1.3 in) |
| 1971 | 39.6 mm (1.6 in) |
| 1972 | 47.8 mm (1.9 in) |
| 1973 | 43.4 mm (1.7 in) |
| 1974 | 64.3 mm (2.5 in) |
| 1975 | 44.2 mm (1.7 in) |
| 1976 | 37.8 mm (1.5 in) |
| 1977 | 53.8 mm (2.1 in) |
| 1978 | 26.4 mm (1.0 in) |
| 1979 | 30.5 mm (1.2 in) |
| 1980 | 34.8 mm (1.4 in) |
| 1981 | 54.1 mm (2.1 in) |
| 1982 | 34.8 mm (1.4 in) |
| 1983 | 47.8 mm (1.9 in) |
| 1984 | 59.9 mm (2.4 in) |
| 1985 | 39.9 mm (1.6 in) |
| 1986 | 55.4 mm (2.2 in) |
| 1987 | 46.5 mm (1.8 in) |
| 1988 | 25.7 mm (1.0 in) |
| 1989 | 28.4 mm (1.1 in) |
| 1991 | 30.2 mm (1.2 in) |
| 1992 | 38.1 mm (1.5 in) |
| 1993 | 40.4 mm (1.6 in) |
| 1994 | 30.0 mm (1.2 in) |
| 1995 | 56.1 mm (2.2 in) |
| 1996 | 46.0 mm (1.8 in) |
| 1997 | 48.8 mm (1.9 in) |
| 1998 | 50.8 mm (2.0 in) |
| 1999 | 36.1 mm (1.4 in) |
| 2000 | 32.3 mm (1.3 in) |
| 2001 | 41.4 mm (1.6 in) |
| 2002 | 40.9 mm (1.6 in) |
| 2003 | 35.6 mm (1.4 in) |
| 2004 | 32.3 mm (1.3 in) |
| 2005 | 69.3 mm (2.7 in) |
| 2006 | 45.0 mm (1.8 in) |
| 2007 | 27.2 mm (1.1 in) |
| 2008 | 42.7 mm (1.7 in) |
| 2009 | 72.9 mm (2.9 in) |
| 2010 | 66.8 mm (2.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1961 | 83.8 mm (3.3 in) |
| 1962 | 128.6 mm (5.1 in) |
| 1963 | 93.0 mm (3.7 in) |
| 1964 | 56.9 mm (2.2 in) |
| 1965 | 102.2 mm (4.0 in) |
| 1966 | 64.8 mm (2.6 in) |
| 1967 | 81.3 mm (3.2 in) |
| 1968 | 87.6 mm (3.4 in) |
| 1969 | 106.1 mm (4.2 in) |
| 1970 | 80.4 mm (3.2 in) |
| 1971 | 90.0 mm (3.5 in) |
| 1972 | 66.9 mm (2.6 in) |
| 1973 | 100.9 mm (4.0 in) |
| 1974 | 110.6 mm (4.4 in) |
| 1975 | 100.5 mm (4.0 in) |
| 1976 | 89.3 mm (3.5 in) |
| 1977 | 104.5 mm (4.1 in) |
| 1978 | 60.2 mm (2.4 in) |
| 1979 | 54.9 mm (2.2 in) |
| 1980 | 96.3 mm (3.8 in) |
| 1981 | 89.4 mm (3.5 in) |
| 1982 | 55.7 mm (2.2 in) |
| 1983 | 104.2 mm (4.1 in) |
| 1984 | 98.0 mm (3.9 in) |
| 1985 | 80.3 mm (3.2 in) |
| 1986 | 87.1 mm (3.4 in) |
| 1987 | 81.4 mm (3.2 in) |
| 1988 | 60.2 mm (2.4 in) |
| 1989 | 71.1 mm (2.8 in) |
| 1991 | 103.6 mm (4.1 in) |
| 1992 | 69.9 mm (2.8 in) |
| 1993 | 82.3 mm (3.2 in) |
| 1994 | 64.1 mm (2.5 in) |
| 1995 | 81.7 mm (3.2 in) |
| 1996 | 60.4 mm (2.4 in) |
| 1997 | 80.6 mm (3.2 in) |
| 1998 | 95.5 mm (3.8 in) |
| 1999 | 79.2 mm (3.1 in) |
| 2000 | 56.3 mm (2.2 in) |
| 2001 | 71.4 mm (2.8 in) |
| 2002 | 72.3 mm (2.8 in) |
| 2003 | 89.9 mm (3.5 in) |
| 2004 | 63.8 mm (2.5 in) |
| 2005 | 106.7 mm (4.2 in) |
| 2006 | 80.7 mm (3.2 in) |
| 2007 | 58.8 mm (2.3 in) |
| 2008 | 98.3 mm (3.9 in) |
| 2009 | 75.7 mm (3.0 in) |
| 2010 | 113.5 mm (4.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1961 | 55 days |
| 1962 | 76 days |
| 1963 | 63 days |
| 1964 | 42 days |
| 1965 | 48 days |
| 1966 | 34 days |
| 1967 | 43 days |
| 1968 | 47 days |
| 1969 | 107 days |
| 1970 | 57 days |
| 1971 | 61 days |
| 1972 | 52 days |
| 1973 | 94 days |
| 1974 | 37 days |
| 1975 | 82 days |
| 1976 | 74 days |
| 1977 | 30 days |
| 1978 | 39 days |
| 1979 | 36 days |
| 1980 | 31 days |
| 1981 | 28 days |
| 1982 | 61 days |
| 1983 | 69 days |
| 1984 | 55 days |
| 1985 | 57 days |
| 1986 | 56 days |
| 1987 | 40 days |
| 1988 | 57 days |
| 1989 | 55 days |
| 1991 | 45 days |
| 1992 | 41 days |
| 1993 | 76 days |
| 1994 | 46 days |
| 1995 | 25 days |
| 1996 | 107 days |
| 1997 | 29 days |
| 1998 | 141 days |
| 1999 | 78 days |
| 2000 | 67 days |
| 2001 | 78 days |
| 2002 | 51 days |
| 2003 | 68 days |
| 2004 | 65 days |
| 2005 | 32 days |
| 2006 | 82 days |
| 2007 | 41 days |
| 2008 | 108 days |
| 2009 | 50 days |
| 2010 | 91 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.
Frost Dates and Growing Season
38 years with a frostAcross 38 years with a frost, the median last spring frost at Presa Tepetitlan falls on 16 March and the median first autumn frost on 8 November, which leaves a median of 249 days between them.
Fitted over all years, the growing season changes by -20.8 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1970 to 2007) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 16 March | n/a | 27 March | n/a | +10.2 days per decade |
| First autumn frost | 8 November | n/a | 8 November | n/a | -10.6 days per decade |
| Growing days | 249 days | n/a | 249 days | n/a | -20.8 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
44 years, 1961 to 2008A day with at least 41.1 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 70.5 mm (2.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 41.1 mm (1.6 in) | |
| 5 years | 50.3 mm (2.0 in) | |
| 10 years | 55.8 mm (2.2 in) | |
| 25 years | 62.1 mm (2.4 in) | |
| 50 years | 66.5 mm (2.6 in) | Longer than the 44 years of record |
| 100 years | 70.5 mm (2.8 in) | Longer than the 44 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, 44 years of values from 1961 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: 69.3 mm (2.7 in) in 2005; 64.3 mm (2.5 in) in 1974; 59.9 mm (2.4 in) in 1984.
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).