Perote Weather Records (MXN00030128)
Record envelope, standing records and threshold days for Perote (MXN00030128), Mexico, with 47 years of record.
Key Facts for Perote
- Perote (MXN00030128) is a weather station in Mexico at 19.57 latitude and -97.23 longitude, 2,392 m (7,847 ft) above sea level.
- The station reports from 1965 to 2011, 47 years of record.
- 1,464 records set at Perote still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Perote set a daily record precipitation of 6.9 mm (0.27 in) on 31 December 2011.
About the Station
- Location: Mexico, 19.57 latitude, -97.23 longitude.
- Elevation: 2,392 m (7,847 ft).
- Period of record: 1965 to 2011, 47 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 | 28.3 C (82.9 F) | -11.1 C (12.0 F) | n/a | n/a |
| Feb | 32.8 C (91.0 F) | -12.2 C (10.0 F) | n/a | n/a |
| Mar | 32.8 C (91.0 F) | -10.0 C (14.0 F) | n/a | n/a |
| Apr | 37.2 C (99.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| May | 39.4 C (102.9 F) | -5.0 C (23.0 F) | n/a | n/a |
| Jun | 34.4 C (93.9 F) | -5.0 C (23.0 F) | n/a | n/a |
| Jul | 28.9 C (84.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Aug | 30.6 C (87.1 F) | -2.2 C (28.0 F) | n/a | n/a |
| Sep | 27.8 C (82.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Oct | 26.7 C (80.1 F) | -8.9 C (16.0 F) | n/a | n/a |
| Nov | 27.8 C (82.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Dec | 28.3 C (82.9 F) | -13.3 C (8.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1965 | 5 |
| 1966 | 16 |
| 1967 | 29 |
| 1968 | 33 |
| 1969 | 69 |
| 1970 | 67 |
| 1971 | 25 |
| 1972 | 35 |
| 1973 | 35 |
| 1974 | 21 |
| 1975 | 11 |
| 1976 | 16 |
| 1977 | 20 |
| 1978 | 21 |
| 1979 | 31 |
| 1980 | 18 |
| 1981 | 21 |
| 1982 | 31 |
| 1983 | 27 |
| 1984 | 20 |
| 1985 | 17 |
| 1986 | 46 |
| 1987 | 46 |
| 1988 | 29 |
| 1989 | 29 |
| 1990 | 10 |
| 1991 | 22 |
| 1992 | 8 |
| 1993 | 19 |
| 1994 | 30 |
| 1995 | 29 |
| 1996 | 33 |
| 1997 | 39 |
| 1998 | 36 |
| 1999 | 35 |
| 2000 | 25 |
| 2001 | 29 |
| 2002 | 29 |
| 2003 | 29 |
| 2004 | 31 |
| 2005 | 25 |
| 2006 | 48 |
| 2007 | 39 |
| 2008 | 115 |
| 2009 | 34 |
| 2010 | 46 |
| 2011 | 35 |
All-Time Record Progression
16 new records| Date | Kind | Detail |
|---|---|---|
| 1997-12-14 | Record low minimum temperature | Record low minimum temperature -13.3 C (8.1 F) |
| 1998-04-06 | Record high maximum temperature | Record high maximum temperature 32.8 C (91.0 F) |
| 1998-05-08 | Record high maximum temperature | Record high maximum temperature 33.3 C (91.9 F) |
| 1999-10-04 | Record daily precipitation | Record daily precipitation 179.8 mm (7.1 in) |
| 2008-01-02 | Record low maximum temperature | Record low maximum temperature 0.0 C (32.0 F) |
| 2008-04-02 | Record high maximum temperature | Record high maximum temperature 34.4 C (93.9 F) |
| 2008-04-03 | Record high maximum temperature | Record high maximum temperature 35.0 C (95.0 F) |
| 2008-04-09 | Record high maximum temperature | Record high maximum temperature 35.6 C (96.1 F) |
| 2008-04-10 | Record high maximum temperature | Record high maximum temperature 36.7 C (98.1 F) |
| 2008-04-11 | Record high maximum temperature | Record high maximum temperature 37.2 C (99.0 F) |
| 2008-05-07 | Record high maximum temperature | Record high maximum temperature 37.8 C (100.0 F) |
| 2008-05-08 | Record high maximum temperature | Record high maximum temperature 38.3 C (100.9 F) |
| 2008-05-09 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 2008-05-10 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 2008-06-09 | Record high minimum temperature | Record high minimum temperature 20.0 C (68.0 F) |
| 2008-06-23 | Record high minimum temperature | Record high minimum temperature 20.6 C (69.1 F) |
Wettest Day of Each Month
Oct: 179.8 mm (7.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 35.6 mm (1.4 in) | 15 January 2010 |
| Feb | 28.7 mm (1.1 in) | 21 February 2009 |
| Mar | 19.3 mm (0.8 in) | 26 March 1978 |
| Apr | 39.9 mm (1.6 in) | 21 April 1979 |
| May | 41.7 mm (1.6 in) | 8 May 2006 |
| Jun | 94.0 mm (3.7 in) | 10 June 2008 |
| Jul | 68.1 mm (2.7 in) | 31 July 2007 |
| Aug | 74.4 mm (2.9 in) | 22 August 2007 |
| Sep | 134.4 mm (5.3 in) | 17 September 2010 |
| Oct | 179.8 mm (7.1 in) | 4 October 1999 |
| Nov | 34.8 mm (1.4 in) | 11 November 1986 |
| Dec | 40.4 mm (1.6 in) | 18 December 1988 |
Period of Record Coverage
1965 to 2011| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1965 | 75 | 21% | No |
| 1966 | 331 | 91% | Yes |
| 1967 | 356 | 98% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 359 | 98% | Yes |
| 1970 | 361 | 99% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 289 | 79% | No |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 363 | 99% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 333 | 91% | Yes |
| 1980 | 361 | 99% | Yes |
| 1981 | 342 | 94% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 334 | 92% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 334 | 92% | Yes |
| 1991 | 334 | 92% | Yes |
| 1992 | 243 | 66% | No |
| 1993 | 306 | 84% | No |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 364 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 348 | 95% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 363 | 99% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 31 December 2011 | Perote, MX | daily rain | 6.9 mm (0.27 in) | 2.6 mm (0.10 in) | 42 years | 20 of 100 (Routine) |
| 21 December 2011 | Perote, MX | daily high max (Tie) | 23.9 C (75.0 F) | tie | 4 years | 1 of 100 (Routine) |
| 8 December 2011 | Perote, MX | daily low min (Tie) | -3.3 C (26.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 4 December 2011 | Perote, MX | daily high max | 25.0 C (77.0 F) | 1.1 C (2.0 F) | 28 years | 14 of 100 (Routine) |
| 2 December 2011 | Perote, MX | daily low min | -5.0 C (23.0 F) | 0.6 C (1.1 F) | 17 years | 10 of 100 (Routine) |
| 27 November 2011 | Perote, MX | daily low max | 5.0 C (41.0 F) | 5.0 C (9.0 F) | 1 year | 16 of 100 (Routine) |
| 23 November 2011 | Perote, MX | daily rain | 3.6 mm (0.14 in) | 0.8 mm (0.03 in) | 16 years | 10 of 100 (Routine) |
| 21 November 2011 | Perote, MX | daily high max | 26.7 C (80.1 F) | 2.3 C (4.1 F) | 6 years | 11 of 100 (Routine) |
| 20 November 2011 | Perote, MX | daily high max (Tie) | 25.0 C (77.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 17 November 2011 | Perote, MX | daily rain | 9.1 mm (0.36 in) | 2.0 mm (0.08 in) | 17 years | 12 of 100 (Routine) |
| 15 November 2011 | Perote, MX | daily high max (Tie) | 25.0 C (77.0 F) | tie | 0 years | 1 of 100 (Routine) |
| 10 November 2011 | Perote, MX | daily low max (Tie) | 7.8 C (46.0 F) | tie | 24 years | 2 of 100 (Routine) |
| 1 November 2011 | Perote, MX | daily low min | -5.0 C (23.0 F) | 1.7 C (3.1 F) | 4 years | 9 of 100 (Routine) |
| 28 October 2011 | Perote, MX | daily low min | -5.0 C (23.0 F) | 1.7 C (3.1 F) | 10 years | 11 of 100 (Routine) |
| 26 October 2011 | Perote, MX | daily low min | -5.0 C (23.0 F) | 0.6 C (1.1 F) | 4 years | 6 of 100 (Routine) |
| 24 October 2011 | Perote, MX | daily low min | -8.3 C (17.1 F) | 3.3 C (5.9 F) | 21 years | 19 of 100 (Routine) |
| 22 October 2011 | Perote, MX | daily low min | -5.6 C (21.9 F) | 2.3 C (4.1 F) | 12 years | 13 of 100 (Routine) |
| 19 October 2011 | Perote, MX | daily low max (Tie) | 10.0 C (50.0 F) | tie | 21 years | 2 of 100 (Routine) |
| 18 October 2011 | Perote, MX | daily rain | 11.7 mm (0.5 in) | 3.1 mm (0.12 in) | 1 year | 6 of 100 (Routine) |
| 18 October 2011 | Perote, MX | daily low min (Tie) | -2.2 C (28.0 F) | tie | 14 years | 2 of 100 (Routine) |
Climate Trend
36 complete years, 1967 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1967 | 12.4 C | +0.11 C |
| 1968 | 12.4 C | +0.06 C |
| 1969 | 13.4 C | +1.08 C |
| 1970 | 13.5 C | +1.21 C |
| 1971 | 12.6 C | +0.24 C |
| 1972 | 12.7 C | +0.35 C |
| 1974 | 12.1 C | -0.28 C |
| 1975 | 12.6 C | +0.22 C |
| 1976 | 12.1 C | -0.23 C |
| 1977 | 12.5 C | +0.20 C |
| 1978 | 12.6 C | +0.24 C |
| 1980 | 12.5 C | +0.13 C |
| 1982 | 12.6 C | +0.22 C |
| 1984 | 12.3 C | -0.06 C |
| 1985 | 12.2 C | -0.15 C |
| 1986 | 12.8 C | +0.42 C |
| 1987 | 12.2 C | -0.10 C |
| 1988 | 12.3 C | -0.07 C |
| 1989 | 11.7 C | -0.64 C |
| 1994 | 12.6 C | +0.30 C |
| 1995 | 13.0 C | +0.65 C |
| 1996 | 12.0 C | -0.34 C |
| 1997 | 12.6 C | +0.24 C |
| 1998 | 13.1 C | +0.79 C |
| 1999 | 11.5 C | -0.88 C |
| 2000 | 11.6 C | -0.74 C |
| 2001 | 11.9 C | -0.45 C |
| 2002 | 11.9 C | -0.44 C |
| 2003 | 12.4 C | +0.11 C |
| 2004 | 11.5 C | -0.86 C |
| 2005 | 11.8 C | -0.56 C |
| 2006 | 11.6 C | -0.74 C |
| 2007 | 12.3 C | -0.08 C |
| 2009 | 12.5 C | +0.12 C |
| 2010 | 12.2 C | -0.09 C |
| 2011 | 12.4 C | +0.08 C |
The annual mean temperature here has fallen by 0.2 C (0.1 to 0.3) per decade over 1967 to 2011. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 36 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 (-0.3 to -0.1) per decade | -0.3 F (-0.5 to -0.1) per decade | 1967 to 2011 | 36 | Fall |
| Mean daily maximum | 0.6 C (0.4 to 0.7) per decade | 1.0 F (0.8 to 1.3) per decade | 1967 to 2011 | 36 | Rise |
| Mean daily minimum | -0.9 C (-1.1 to -0.7) per decade | -1.6 F (-1.9 to -1.3) per decade | 1967 to 2011 | 36 | 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
1965 to 2011| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.4 C (102.9 F) | 2008 | 30.0 C (86.0 F) | 47 |
| Coldest night (TNn) | -13.3 C (8.1 F) | 1997 | -8.3 C (17.1 F) | 47 |
| Wettest day (Rx1day) | 179.8 mm (7.1 in) | 1999 | 40.4 mm (1.6 in) | 47 |
| Wettest five days (Rx5day) | 354.6 mm (14.0 in) | 1999 | 73.7 mm (2.9 in) | 47 |
| Longest dry spell (CDD) | 71 days | 2003 | 41 days | 47 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1965 | 27.8 C (82.0 F) |
| 1966 | 28.3 C (82.9 F) |
| 1967 | 27.8 C (82.0 F) |
| 1968 | 25.6 C (78.1 F) |
| 1969 | 28.9 C (84.0 F) |
| 1970 | 28.3 C (82.9 F) |
| 1971 | 29.4 C (84.9 F) |
| 1972 | 27.2 C (81.0 F) |
| 1973 | 28.9 C (84.0 F) |
| 1974 | 28.3 C (82.9 F) |
| 1975 | 26.7 C (80.1 F) |
| 1976 | 26.1 C (79.0 F) |
| 1977 | 28.3 C (82.9 F) |
| 1978 | 27.8 C (82.0 F) |
| 1979 | 27.2 C (81.0 F) |
| 1980 | 27.8 C (82.0 F) |
| 1981 | 27.8 C (82.0 F) |
| 1982 | 30.0 C (86.0 F) |
| 1983 | 31.7 C (89.1 F) |
| 1984 | 30.6 C (87.1 F) |
| 1985 | 28.9 C (84.0 F) |
| 1986 | 30.0 C (86.0 F) |
| 1987 | 28.9 C (84.0 F) |
| 1988 | 30.6 C (87.1 F) |
| 1989 | 30.0 C (86.0 F) |
| 1990 | 30.0 C (86.0 F) |
| 1991 | 30.6 C (87.1 F) |
| 1992 | 27.8 C (82.0 F) |
| 1993 | 30.0 C (86.0 F) |
| 1994 | 30.6 C (87.1 F) |
| 1995 | 30.0 C (86.0 F) |
| 1996 | 30.0 C (86.0 F) |
| 1997 | 30.0 C (86.0 F) |
| 1998 | 33.3 C (91.9 F) |
| 1999 | 30.6 C (87.1 F) |
| 2000 | 29.4 C (84.9 F) |
| 2001 | 29.4 C (84.9 F) |
| 2002 | 30.0 C (86.0 F) |
| 2003 | 31.1 C (88.0 F) |
| 2004 | 30.6 C (87.1 F) |
| 2005 | 31.1 C (88.0 F) |
| 2006 | 31.1 C (88.0 F) |
| 2007 | 32.8 C (91.0 F) |
| 2008 | 39.4 C (102.9 F) |
| 2009 | 31.7 C (89.1 F) |
| 2010 | 31.1 C (88.0 F) |
| 2011 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1965 | 0.6 C (33.1 F) |
| 1966 | 0.0 C (32.0 F) |
| 1967 | -6.1 C (21.0 F) |
| 1968 | 0.0 C (32.0 F) |
| 1969 | -5.0 C (23.0 F) |
| 1970 | -5.0 C (23.0 F) |
| 1971 | -0.6 C (30.9 F) |
| 1972 | -5.0 C (23.0 F) |
| 1973 | 0.0 C (32.0 F) |
| 1974 | -5.0 C (23.0 F) |
| 1975 | -5.0 C (23.0 F) |
| 1976 | -9.4 C (15.1 F) |
| 1977 | -5.0 C (23.0 F) |
| 1978 | -2.2 C (28.0 F) |
| 1979 | -3.3 C (26.1 F) |
| 1980 | -5.0 C (23.0 F) |
| 1981 | -8.3 C (17.1 F) |
| 1982 | -10.0 C (14.0 F) |
| 1983 | -6.1 C (21.0 F) |
| 1984 | -8.3 C (17.1 F) |
| 1985 | -8.3 C (17.1 F) |
| 1986 | -8.3 C (17.1 F) |
| 1987 | -12.2 C (10.0 F) |
| 1988 | -8.3 C (17.1 F) |
| 1989 | -11.1 C (12.0 F) |
| 1990 | -9.4 C (15.1 F) |
| 1991 | -10.0 C (14.0 F) |
| 1992 | -3.3 C (26.1 F) |
| 1993 | -8.3 C (17.1 F) |
| 1994 | -10.0 C (14.0 F) |
| 1995 | -8.3 C (17.1 F) |
| 1996 | -10.0 C (14.0 F) |
| 1997 | -13.3 C (8.1 F) |
| 1998 | -8.3 C (17.1 F) |
| 1999 | -8.9 C (16.0 F) |
| 2000 | -10.0 C (14.0 F) |
| 2001 | -6.1 C (21.0 F) |
| 2002 | -8.3 C (17.1 F) |
| 2003 | -10.0 C (14.0 F) |
| 2004 | -10.0 C (14.0 F) |
| 2005 | -8.3 C (17.1 F) |
| 2006 | -11.1 C (12.0 F) |
| 2007 | -7.8 C (18.0 F) |
| 2008 | -6.1 C (21.0 F) |
| 2009 | -7.8 C (18.0 F) |
| 2010 | -10.0 C (14.0 F) |
| 2011 | -8.9 C (16.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1965 | 7.4 mm (0.29 in) |
| 1966 | 19.8 mm (0.8 in) |
| 1967 | 25.9 mm (1.0 in) |
| 1968 | 30.0 mm (1.2 in) |
| 1969 | 29.5 mm (1.2 in) |
| 1970 | 33.3 mm (1.3 in) |
| 1971 | 27.9 mm (1.1 in) |
| 1972 | 21.3 mm (0.8 in) |
| 1973 | 27.9 mm (1.1 in) |
| 1974 | 105.9 mm (4.2 in) |
| 1975 | 59.9 mm (2.4 in) |
| 1976 | 38.9 mm (1.5 in) |
| 1977 | 19.3 mm (0.8 in) |
| 1978 | 40.4 mm (1.6 in) |
| 1979 | 48.3 mm (1.9 in) |
| 1980 | 85.9 mm (3.4 in) |
| 1981 | 61.5 mm (2.4 in) |
| 1982 | 43.4 mm (1.7 in) |
| 1983 | 22.6 mm (0.9 in) |
| 1984 | 48.8 mm (1.9 in) |
| 1985 | 40.4 mm (1.6 in) |
| 1986 | 34.8 mm (1.4 in) |
| 1987 | 25.9 mm (1.0 in) |
| 1988 | 65.0 mm (2.6 in) |
| 1989 | 26.2 mm (1.0 in) |
| 1990 | 66.3 mm (2.6 in) |
| 1991 | 22.4 mm (0.9 in) |
| 1992 | 47.8 mm (1.9 in) |
| 1993 | 22.6 mm (0.9 in) |
| 1994 | 21.8 mm (0.9 in) |
| 1995 | 108.7 mm (4.3 in) |
| 1996 | 40.1 mm (1.6 in) |
| 1997 | 38.6 mm (1.5 in) |
| 1998 | 53.8 mm (2.1 in) |
| 1999 | 179.8 mm (7.1 in) |
| 2000 | 56.6 mm (2.2 in) |
| 2001 | 56.1 mm (2.2 in) |
| 2002 | 28.4 mm (1.1 in) |
| 2003 | 44.5 mm (1.8 in) |
| 2004 | 27.4 mm (1.1 in) |
| 2005 | 100.1 mm (3.9 in) |
| 2006 | 41.7 mm (1.6 in) |
| 2007 | 83.6 mm (3.3 in) |
| 2008 | 94.0 mm (3.7 in) |
| 2009 | 48.3 mm (1.9 in) |
| 2010 | 134.4 mm (5.3 in) |
| 2011 | 47.2 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1965 | 21.4 mm (0.8 in) |
| 1966 | 62.3 mm (2.5 in) |
| 1967 | 70.8 mm (2.8 in) |
| 1968 | 64.3 mm (2.5 in) |
| 1969 | 63.6 mm (2.5 in) |
| 1970 | 50.7 mm (2.0 in) |
| 1971 | 48.4 mm (1.9 in) |
| 1972 | 55.7 mm (2.2 in) |
| 1973 | 48.7 mm (1.9 in) |
| 1974 | 227.9 mm (9.0 in) |
| 1975 | 104.4 mm (4.1 in) |
| 1976 | 79.8 mm (3.1 in) |
| 1977 | 25.7 mm (1.0 in) |
| 1978 | 73.7 mm (2.9 in) |
| 1979 | 119.2 mm (4.7 in) |
| 1980 | 163.7 mm (6.4 in) |
| 1981 | 92.5 mm (3.6 in) |
| 1982 | 66.3 mm (2.6 in) |
| 1983 | 39.3 mm (1.5 in) |
| 1984 | 120.2 mm (4.7 in) |
| 1985 | 58.2 mm (2.3 in) |
| 1986 | 69.3 mm (2.7 in) |
| 1987 | 36.3 mm (1.4 in) |
| 1988 | 135.6 mm (5.3 in) |
| 1989 | 65.8 mm (2.6 in) |
| 1990 | 66.3 mm (2.6 in) |
| 1991 | 62.3 mm (2.5 in) |
| 1992 | 82.8 mm (3.3 in) |
| 1993 | 64.3 mm (2.5 in) |
| 1994 | 40.4 mm (1.6 in) |
| 1995 | 113.6 mm (4.5 in) |
| 1996 | 81.0 mm (3.2 in) |
| 1997 | 77.8 mm (3.1 in) |
| 1998 | 123.3 mm (4.9 in) |
| 1999 | 354.6 mm (14.0 in) |
| 2000 | 80.9 mm (3.2 in) |
| 2001 | 83.8 mm (3.3 in) |
| 2002 | 48.3 mm (1.9 in) |
| 2003 | 108.7 mm (4.3 in) |
| 2004 | 59.7 mm (2.4 in) |
| 2005 | 228.1 mm (9.0 in) |
| 2006 | 58.7 mm (2.3 in) |
| 2007 | 116.3 mm (4.6 in) |
| 2008 | 237.1 mm (9.3 in) |
| 2009 | 142.6 mm (5.6 in) |
| 2010 | 145.6 mm (5.7 in) |
| 2011 | 144.0 mm (5.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1965 | 31 days |
| 1966 | 35 days |
| 1967 | 22 days |
| 1968 | 35 days |
| 1969 | 43 days |
| 1970 | 58 days |
| 1971 | 29 days |
| 1972 | 44 days |
| 1973 | 56 days |
| 1974 | 33 days |
| 1975 | 55 days |
| 1976 | 42 days |
| 1977 | 62 days |
| 1978 | 54 days |
| 1979 | 58 days |
| 1980 | 39 days |
| 1981 | 22 days |
| 1982 | 44 days |
| 1983 | 48 days |
| 1984 | 40 days |
| 1985 | 48 days |
| 1986 | 27 days |
| 1987 | 58 days |
| 1988 | 37 days |
| 1989 | 42 days |
| 1990 | 31 days |
| 1991 | 36 days |
| 1992 | 29 days |
| 1993 | 41 days |
| 1994 | 52 days |
| 1995 | 33 days |
| 1996 | 37 days |
| 1997 | 30 days |
| 1998 | 55 days |
| 1999 | 37 days |
| 2000 | 56 days |
| 2001 | 31 days |
| 2002 | 43 days |
| 2003 | 71 days |
| 2004 | 42 days |
| 2005 | 33 days |
| 2006 | 24 days |
| 2007 | 27 days |
| 2008 | 41 days |
| 2009 | 26 days |
| 2010 | 43 days |
| 2011 | 51 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
36 years with a frostAcross 36 years with a frost, the median last spring frost at Perote falls on 22 May and the median first autumn frost on 21 August, which leaves a median of 75 days between them.
Fitted over all years, the growing season changes by -47.7 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1974 to 2011) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 22 May | n/a | 27 May | n/a | +22.1 days per decade |
| First autumn frost | 21 August | n/a | 12 August | n/a | -25.6 days per decade |
| Growing days | 75 days | n/a | 66 days | n/a | -47.7 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
43 years, 1966 to 2011A day with at least 42.3 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 200.9 mm (7.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 42.3 mm (1.7 in) | |
| 5 years | 68.4 mm (2.7 in) | |
| 10 years | 90.8 mm (3.6 in) | |
| 25 years | 126.8 mm (5.0 in) | |
| 50 years | 160.4 mm (6.3 in) | Longer than the 43 years of record |
| 100 years | 200.9 mm (7.9 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 1966 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: 179.8 mm (7.1 in) in 1999; 134.4 mm (5.3 in) in 2010; 108.7 mm (4.3 in) in 1995.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).