Cinco de Mayo Weather Records (MXN00010008)
Record envelope, standing records and threshold days for Cinco de Mayo (MXN00010008), Mexico, with 46 years of record.
Key Facts for Cinco de Mayo
- Cinco de Mayo (MXN00010008) is a weather station in Mexico at 25.77 latitude and -104.28 longitude, 1,700 m (5,577 ft) above sea level.
- The station reports from 1964 to 2009, 46 years of record.
- 1,464 records set at Cinco de Mayo still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Cinco de Mayo set a daily record high minimum temperature of 20.6 C (69.1 F) on 29 July 2009.
About the Station
- Location: Mexico, 25.77 latitude, -104.28 longitude.
- Elevation: 1,700 m (5,577 ft).
- Period of record: 1964 to 2009, 46 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 | 35.0 C (95.0 F) | -8.3 C (17.1 F) | n/a | n/a |
| Feb | 32.8 C (91.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Mar | 35.0 C (95.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Apr | 39.4 C (102.9 F) | -6.1 C (21.0 F) | n/a | n/a |
| May | 40.6 C (105.1 F) | 2.8 C (37.0 F) | n/a | n/a |
| Jun | 45.0 C (113.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Jul | 40.0 C (104.0 F) | 3.9 C (39.0 F) | n/a | n/a |
| Aug | 38.9 C (102.0 F) | 5.6 C (42.1 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Oct | 39.4 C (102.9 F) | -1.1 C (30.0 F) | n/a | n/a |
| Nov | 36.7 C (98.1 F) | -7.2 C (19.0 F) | n/a | n/a |
| Dec | 30.6 C (87.1 F) | -15.0 C (5.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1964 | 15 |
| 1965 | 31 |
| 1966 | 32 |
| 1967 | 50 |
| 1968 | 29 |
| 1969 | 32 |
| 1970 | 32 |
| 1971 | 14 |
| 1972 | 23 |
| 1973 | 45 |
| 1974 | 13 |
| 1975 | 36 |
| 1976 | 27 |
| 1977 | 23 |
| 1978 | 38 |
| 1979 | 75 |
| 1980 | 28 |
| 1981 | 6 |
| 1982 | 21 |
| 1983 | 13 |
| 1984 | 11 |
| 1985 | 4 |
| 1986 | 8 |
| 1987 | 20 |
| 1988 | 28 |
| 1989 | 52 |
| 1990 | 5 |
| 1991 | 42 |
| 1992 | 59 |
| 1993 | 15 |
| 1994 | 5 |
| 1995 | 10 |
| 1996 | 14 |
| 1997 | 26 |
| 1998 | 16 |
| 1999 | 43 |
| 2000 | 53 |
| 2001 | 59 |
| 2002 | 72 |
| 2003 | 50 |
| 2004 | 31 |
| 2005 | 18 |
| 2006 | 22 |
| 2007 | 111 |
| 2008 | 58 |
| 2009 | 49 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1997-12-12 | Record low minimum temperature | Record low minimum temperature -15.0 C (5.0 F) |
| 2007-01-23 | Record low maximum temperature | Record low maximum temperature 1.7 C (35.1 F) |
Wettest Day of Each Month
Sep: 79.8 mm (3.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 22.9 mm (0.9 in) | 20 January 1965 |
| Feb | 20.8 mm (0.8 in) | 6 February 1975 |
| Mar | 26.9 mm (1.1 in) | 29 March 2004 |
| Apr | 32.3 mm (1.3 in) | 13 April 1981 |
| May | 36.8 mm (1.4 in) | 9 May 1997 |
| Jun | 55.9 mm (2.2 in) | 11 June 1998 |
| Jul | 43.9 mm (1.7 in) | 18 July 1997 |
| Aug | 72.4 mm (2.9 in) | 23 August 2008 |
| Sep | 79.8 mm (3.1 in) | 26 September 1993 |
| Oct | 40.4 mm (1.6 in) | 16 October 1976 |
| Nov | 20.8 mm (0.8 in) | 25 November 1982 |
| Dec | 19.8 mm (0.8 in) | 4 December 1967 |
Period of Record Coverage
1964 to 2009| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1964 | 252 | 69% | No |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 363 | 99% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 334 | 92% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 341 | 93% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 180 | 49% | No |
| 1986 | 334 | 92% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 355 | 97% | Yes |
| 1990 | 153 | 42% | No |
| 1991 | 365 | 100% | Yes |
| 1992 | 364 | 99% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 336 | 92% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 302 | 83% | No |
| 2000 | 365 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 327 | 90% | No |
| 2006 | 355 | 97% | Yes |
| 2007 | 318 | 87% | No |
| 2008 | 350 | 96% | Yes |
| 2009 | 192 | 53% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 29 July 2009 | Cinco de Mayo, MX | daily high min | 20.6 C (69.1 F) | 1.7 C (3.1 F) | 30 years | 19 of 100 (Routine) |
| 29 July 2009 | Cinco de Mayo, MX | daily rain | 21.8 mm (0.9 in) | 5.5 mm (0.22 in) | 28 years | 19 of 100 (Routine) |
| 17 July 2009 | Cinco de Mayo, MX | daily low max (Tie) | 21.7 C (71.1 F) | tie | 18 years | 2 of 100 (Routine) |
| 25 June 2009 | Cinco de Mayo, MX | daily low min | 1.7 C (35.1 F) | 5.0 C (9.0 F) | 20 years | 24 of 100 (Routine) |
| 25 June 2009 | Cinco de Mayo, MX | daily low max | 18.9 C (66.0 F) | 1.1 C (2.0 F) | 8 years | 8 of 100 (Routine) |
| 24 June 2009 | Cinco de Mayo, MX | daily low min | 2.8 C (37.0 F) | 6.1 C (11.0 F) | 20 years | 27 of 100 (Routine) |
| 24 June 2009 | Cinco de Mayo, MX | daily low max | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 8 years | 8 of 100 (Routine) |
| 23 June 2009 | Cinco de Mayo, MX | daily low min | 5.0 C (41.0 F) | 3.9 C (7.0 F) | 18 years | 20 of 100 (Routine) |
| 23 June 2009 | Cinco de Mayo, MX | daily low max | 15.0 C (59.0 F) | 2.8 C (5.0 F) | 8 years | 12 of 100 (Routine) |
| 22 June 2009 | Cinco de Mayo, MX | daily low max | 15.6 C (60.1 F) | 1.1 C (2.0 F) | 2 years | 6 of 100 (Routine) |
| 19 June 2009 | Cinco de Mayo, MX | monthly low max | 13.9 C (57.0 F) | 1.7 C (3.1 F) | 42 years | 29 of 100 (Routine) |
| 19 June 2009 | Cinco de Mayo, MX | daily rain (Tie) | 13.0 mm (0.5 in) | tie | 10 years | 1 of 100 (Routine) |
| 18 June 2009 | Cinco de Mayo, MX | daily rain | 19.8 mm (0.8 in) | 6.8 mm (0.27 in) | 15 years | 14 of 100 (Routine) |
| 17 June 2009 | Cinco de Mayo, MX | daily low max | 18.9 C (66.0 F) | 1.1 C (2.0 F) | 20 years | 12 of 100 (Routine) |
| 16 June 2009 | Cinco de Mayo, MX | daily low max | 17.8 C (64.0 F) | 5.0 C (9.0 F) | 8 years | 17 of 100 (Routine) |
| 13 June 2009 | Cinco de Mayo, MX | daily low min | 5.6 C (42.1 F) | 3.3 C (5.9 F) | 36 years | 24 of 100 (Routine) |
| 12 June 2009 | Cinco de Mayo, MX | monthly low min (Tie) | 0.6 C (33.1 F) | tie | 0 years | 3 of 100 (Routine) |
| 11 June 2009 | Cinco de Mayo, MX | daily low min | 1.7 C (35.1 F) | 3.9 C (7.0 F) | 36 years | 26 of 100 (Routine) |
| 10 June 2009 | Cinco de Mayo, MX | daily low min | 2.8 C (37.0 F) | 5.0 C (9.0 F) | 20 years | 24 of 100 (Routine) |
| 9 June 2009 | Cinco de Mayo, MX | daily low min | 5.0 C (41.0 F) | 2.8 C (5.0 F) | 18 years | 17 of 100 (Routine) |
Climate Trend
35 complete years, 1965 to 2008| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1965 | 18.7 C | +0.49 C |
| 1966 | 18.2 C | +0.03 C |
| 1967 | 18.6 C | +0.44 C |
| 1968 | 17.5 C | -0.66 C |
| 1969 | 18.9 C | +0.67 C |
| 1970 | 18.0 C | -0.17 C |
| 1971 | 18.6 C | +0.39 C |
| 1972 | 18.9 C | +0.73 C |
| 1974 | 17.9 C | -0.29 C |
| 1975 | 17.7 C | -0.44 C |
| 1976 | 17.5 C | -0.72 C |
| 1977 | 18.9 C | +0.67 C |
| 1978 | 17.9 C | -0.30 C |
| 1979 | 19.7 C | +1.50 C |
| 1980 | 18.4 C | +0.18 C |
| 1982 | 18.7 C | +0.50 C |
| 1983 | 18.1 C | -0.10 C |
| 1984 | 17.4 C | -0.74 C |
| 1987 | 17.4 C | -0.75 C |
| 1988 | 17.8 C | -0.37 C |
| 1989 | 17.1 C | -1.10 C |
| 1991 | 17.2 C | -1.02 C |
| 1992 | 16.0 C | -2.21 C |
| 1993 | 18.0 C | -0.21 C |
| 1994 | 18.5 C | +0.27 C |
| 1995 | 18.7 C | +0.50 C |
| 1997 | 17.5 C | -0.66 C |
| 1998 | 18.6 C | +0.45 C |
| 2000 | 16.4 C | -1.79 C |
| 2001 | 20.7 C | +2.56 C |
| 2002 | 20.2 C | +2.06 C |
| 2003 | 20.2 C | +2.01 C |
| 2004 | 19.1 C | +0.88 C |
| 2006 | 19.1 C | +0.94 C |
| 2008 | 14.5 C | -3.64 C |
The fitted trend in annual mean temperature here over 1965 to 2008 is -0.03 C (-0.35 to 0.29) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.6 to 0.5) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.03 C (-0.35 to 0.29) per decade | -0.1 F (-0.6 to 0.5) per decade | 1965 to 2008 | 35 | Not clearly different from zero |
| Mean daily maximum | -0.6 C (-1.1 to -0.1) per decade | -1.1 F (-2.0 to -0.2) per decade | 1965 to 2008 | 35 | Fall |
| Mean daily minimum | 0.5 C (0.3 to 0.8) per decade | 1.0 F (0.5 to 1.5) per decade | 1965 to 2008 | 35 | 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
1964 to 2009| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.0 C (113.0 F) | 1969 | 37.8 C (100.0 F) | 46 |
| Coldest night (TNn) | -15.0 C (5.0 F) | 1997 | -5.0 C (23.0 F) | 46 |
| Wettest day (Rx1day) | 79.8 mm (3.1 in) | 1993 | 33.6 mm (1.3 in) | 46 |
| Wettest five days (Rx5day) | 132.9 mm (5.2 in) | 1964 | 55.1 mm (2.2 in) | 46 |
| Longest dry spell (CDD) | 188 days | 1989 | 101 days | 46 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1964 | 37.2 C (99.0 F) |
| 1965 | 38.9 C (102.0 F) |
| 1966 | 39.4 C (102.9 F) |
| 1967 | 39.4 C (102.9 F) |
| 1968 | 40.6 C (105.1 F) |
| 1969 | 45.0 C (113.0 F) |
| 1970 | 40.0 C (104.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 38.9 C (102.0 F) |
| 1973 | 39.4 C (102.9 F) |
| 1974 | 40.0 C (104.0 F) |
| 1975 | 42.2 C (108.0 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 37.2 C (99.0 F) |
| 1978 | 40.0 C (104.0 F) |
| 1979 | 40.6 C (105.1 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 40.0 C (104.0 F) |
| 1982 | 38.9 C (102.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 37.8 C (100.0 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 37.8 C (100.0 F) |
| 1989 | 38.9 C (102.0 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 37.8 C (100.0 F) |
| 1993 | 38.9 C (102.0 F) |
| 1994 | 36.7 C (98.1 F) |
| 1995 | 38.9 C (102.0 F) |
| 1996 | 38.9 C (102.0 F) |
| 1997 | 35.6 C (96.1 F) |
| 1998 | 37.8 C (100.0 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 36.7 C (98.1 F) |
| 2001 | 37.8 C (100.0 F) |
| 2002 | 38.9 C (102.0 F) |
| 2003 | 40.6 C (105.1 F) |
| 2004 | 37.8 C (100.0 F) |
| 2005 | 40.0 C (104.0 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 31.7 C (89.1 F) |
| 2008 | 33.9 C (93.0 F) |
| 2009 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1964 | 0.6 C (33.1 F) |
| 1965 | -3.3 C (26.1 F) |
| 1966 | -4.4 C (24.1 F) |
| 1967 | -6.1 C (21.0 F) |
| 1968 | -1.1 C (30.0 F) |
| 1969 | -5.0 C (23.0 F) |
| 1970 | -6.1 C (21.0 F) |
| 1971 | -5.0 C (23.0 F) |
| 1972 | 0.0 C (32.0 F) |
| 1973 | -3.3 C (26.1 F) |
| 1974 | -2.2 C (28.0 F) |
| 1975 | -6.1 C (21.0 F) |
| 1976 | -5.0 C (23.0 F) |
| 1977 | -2.2 C (28.0 F) |
| 1978 | -7.2 C (19.0 F) |
| 1979 | -5.0 C (23.0 F) |
| 1980 | -5.6 C (21.9 F) |
| 1981 | -5.0 C (23.0 F) |
| 1982 | -7.2 C (19.0 F) |
| 1983 | -4.4 C (24.1 F) |
| 1984 | -4.4 C (24.1 F) |
| 1985 | -8.3 C (17.1 F) |
| 1986 | -5.0 C (23.0 F) |
| 1987 | -6.1 C (21.0 F) |
| 1988 | 0.0 C (32.0 F) |
| 1989 | -2.2 C (28.0 F) |
| 1990 | 1.7 C (35.1 F) |
| 1991 | 0.0 C (32.0 F) |
| 1992 | -7.2 C (19.0 F) |
| 1993 | -3.3 C (26.1 F) |
| 1994 | -4.4 C (24.1 F) |
| 1995 | -5.0 C (23.0 F) |
| 1996 | -8.3 C (17.1 F) |
| 1997 | -15.0 C (5.0 F) |
| 1998 | -6.1 C (21.0 F) |
| 1999 | -7.2 C (19.0 F) |
| 2000 | 0.0 C (32.0 F) |
| 2001 | -5.0 C (23.0 F) |
| 2002 | -5.0 C (23.0 F) |
| 2003 | -5.0 C (23.0 F) |
| 2004 | -5.0 C (23.0 F) |
| 2005 | -5.0 C (23.0 F) |
| 2006 | -6.1 C (21.0 F) |
| 2007 | -6.1 C (21.0 F) |
| 2008 | -7.2 C (19.0 F) |
| 2009 | -6.1 C (21.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1964 | 55.4 mm (2.2 in) |
| 1965 | 22.9 mm (0.9 in) |
| 1966 | 24.9 mm (1.0 in) |
| 1967 | 36.3 mm (1.4 in) |
| 1968 | 40.9 mm (1.6 in) |
| 1969 | 18.8 mm (0.7 in) |
| 1970 | 45.5 mm (1.8 in) |
| 1971 | 39.4 mm (1.6 in) |
| 1972 | 29.0 mm (1.1 in) |
| 1973 | 41.9 mm (1.6 in) |
| 1974 | 21.3 mm (0.8 in) |
| 1975 | 29.0 mm (1.1 in) |
| 1976 | 40.4 mm (1.6 in) |
| 1977 | 26.9 mm (1.1 in) |
| 1978 | 34.8 mm (1.4 in) |
| 1979 | 39.9 mm (1.6 in) |
| 1980 | 33.3 mm (1.3 in) |
| 1981 | 32.3 mm (1.3 in) |
| 1982 | 20.8 mm (0.8 in) |
| 1983 | 17.8 mm (0.7 in) |
| 1984 | 47.8 mm (1.9 in) |
| 1985 | 38.9 mm (1.5 in) |
| 1986 | 31.8 mm (1.3 in) |
| 1987 | 39.9 mm (1.6 in) |
| 1988 | 30.0 mm (1.2 in) |
| 1989 | 32.8 mm (1.3 in) |
| 1990 | 9.9 mm (0.39 in) |
| 1991 | 49.8 mm (2.0 in) |
| 1992 | 30.0 mm (1.2 in) |
| 1993 | 79.8 mm (3.1 in) |
| 1994 | 45.0 mm (1.8 in) |
| 1995 | 31.8 mm (1.3 in) |
| 1996 | 30.0 mm (1.2 in) |
| 1997 | 43.9 mm (1.7 in) |
| 1998 | 55.9 mm (2.2 in) |
| 1999 | 39.9 mm (1.6 in) |
| 2000 | 39.9 mm (1.6 in) |
| 2001 | 33.8 mm (1.3 in) |
| 2002 | 31.8 mm (1.3 in) |
| 2003 | 59.9 mm (2.4 in) |
| 2004 | 26.9 mm (1.1 in) |
| 2005 | 20.8 mm (0.8 in) |
| 2006 | 47.0 mm (1.9 in) |
| 2007 | 23.9 mm (0.9 in) |
| 2008 | 72.4 mm (2.9 in) |
| 2009 | 21.8 mm (0.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1964 | 132.9 mm (5.2 in) |
| 1965 | 27.2 mm (1.1 in) |
| 1966 | 65.3 mm (2.6 in) |
| 1967 | 50.5 mm (2.0 in) |
| 1968 | 98.6 mm (3.9 in) |
| 1969 | 33.1 mm (1.3 in) |
| 1970 | 93.6 mm (3.7 in) |
| 1971 | 77.0 mm (3.0 in) |
| 1972 | 52.1 mm (2.1 in) |
| 1973 | 90.7 mm (3.6 in) |
| 1974 | 45.2 mm (1.8 in) |
| 1975 | 29.0 mm (1.1 in) |
| 1976 | 52.3 mm (2.1 in) |
| 1977 | 41.1 mm (1.6 in) |
| 1978 | 77.5 mm (3.1 in) |
| 1979 | 39.9 mm (1.6 in) |
| 1980 | 60.2 mm (2.4 in) |
| 1981 | 50.1 mm (2.0 in) |
| 1982 | 46.5 mm (1.8 in) |
| 1983 | 56.6 mm (2.2 in) |
| 1984 | 100.7 mm (4.0 in) |
| 1985 | 44.7 mm (1.8 in) |
| 1986 | 57.7 mm (2.3 in) |
| 1987 | 78.3 mm (3.1 in) |
| 1988 | 30.7 mm (1.2 in) |
| 1989 | 53.6 mm (2.1 in) |
| 1990 | 9.9 mm (0.39 in) |
| 1991 | 89.7 mm (3.5 in) |
| 1992 | 37.9 mm (1.5 in) |
| 1993 | 99.4 mm (3.9 in) |
| 1994 | 45.0 mm (1.8 in) |
| 1995 | 34.5 mm (1.4 in) |
| 1996 | 85.7 mm (3.4 in) |
| 1997 | 47.8 mm (1.9 in) |
| 1998 | 68.3 mm (2.7 in) |
| 1999 | 44.0 mm (1.7 in) |
| 2000 | 83.6 mm (3.3 in) |
| 2001 | 37.6 mm (1.5 in) |
| 2002 | 62.3 mm (2.5 in) |
| 2003 | 87.4 mm (3.4 in) |
| 2004 | 67.6 mm (2.7 in) |
| 2005 | 33.5 mm (1.3 in) |
| 2006 | 105.5 mm (4.2 in) |
| 2007 | 61.2 mm (2.4 in) |
| 2008 | 98.8 mm (3.9 in) |
| 2009 | 39.7 mm (1.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1964 | 57 days |
| 1965 | 133 days |
| 1966 | 120 days |
| 1967 | 59 days |
| 1968 | 74 days |
| 1969 | 172 days |
| 1970 | 90 days |
| 1971 | 131 days |
| 1972 | 77 days |
| 1973 | 77 days |
| 1974 | 101 days |
| 1975 | 169 days |
| 1976 | 67 days |
| 1977 | 80 days |
| 1978 | 115 days |
| 1979 | 116 days |
| 1980 | 149 days |
| 1981 | 47 days |
| 1982 | 61 days |
| 1983 | 72 days |
| 1984 | 105 days |
| 1985 | 71 days |
| 1986 | 85 days |
| 1987 | 72 days |
| 1988 | 163 days |
| 1989 | 188 days |
| 1990 | 101 days |
| 1991 | 155 days |
| 1992 | 122 days |
| 1993 | 131 days |
| 1994 | 78 days |
| 1995 | 169 days |
| 1996 | 151 days |
| 1997 | 48 days |
| 1998 | 152 days |
| 1999 | 128 days |
| 2000 | 149 days |
| 2001 | 67 days |
| 2002 | 53 days |
| 2003 | 79 days |
| 2004 | 56 days |
| 2005 | 49 days |
| 2006 | 75 days |
| 2007 | 122 days |
| 2008 | 104 days |
| 2009 | 130 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
30 years with a frostAcross 30 years with a frost, the median last spring frost at Cinco de Mayo falls on 28 February and the median first autumn frost on 19 November, which leaves a median of 259 days between them.
Fitted over all years, the growing season changes by +2.3 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1965 to 2008) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 28 February | n/a | 28 February | n/a | -1.2 days per decade |
| First autumn frost | 19 November | n/a | 19 November | n/a | +1.0 days per decade |
| Growing days | 259 days | n/a | 259 days | n/a | +2.3 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
41 years, 1965 to 2008A day with at least 34.0 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 82.3 mm (3.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 34.0 mm (1.3 in) | |
| 5 years | 45.8 mm (1.8 in) | |
| 10 years | 54.0 mm (2.1 in) | |
| 25 years | 65.0 mm (2.6 in) | |
| 50 years | 73.5 mm (2.9 in) | Longer than the 41 years of record |
| 100 years | 82.3 mm (3.2 in) | Longer than the 41 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, 41 years of values from 1965 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: 79.8 mm (3.1 in) in 1993; 72.4 mm (2.9 in) in 2008; 59.9 mm (2.4 in) in 2003.
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).