Sandovales Weather Records (MXN00001034)
Record envelope, standing records and threshold days for Sandovales (MXN00001034), Mexico, with 42 years of record.
Key Facts for Sandovales
- Sandovales (MXN00001034) is a weather station in Mexico at 21.88 latitude and -102.10 longitude, 2,007 m (6,584 ft) above sea level.
- The station reports from 1972 to 2013, 42 years of record.
- 1,464 records set at Sandovales still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Sandovales set a daily record high maximum temperature of 28.9 C (84.0 F) on 31 October 2013.
About the Station
- Location: Mexico, 21.88 latitude, -102.10 longitude.
- Elevation: 2,007 m (6,584 ft).
- Period of record: 1972 to 2013, 42 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 | 28.9 C (84.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Feb | 31.7 C (89.1 F) | -6.1 C (21.0 F) | n/a | n/a |
| Mar | 35.0 C (95.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| Apr | 38.9 C (102.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| May | 38.9 C (102.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Jun | 35.6 C (96.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jul | 35.0 C (95.0 F) | 3.9 C (39.0 F) | n/a | n/a |
| Aug | 33.9 C (93.0 F) | 3.9 C (39.0 F) | n/a | n/a |
| Sep | 32.8 C (91.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Oct | 31.7 C (89.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Nov | 28.9 C (84.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Dec | 28.9 C (84.0 F) | -8.3 C (17.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1972 | 56 |
| 1973 | 67 |
| 1974 | 68 |
| 1975 | 32 |
| 1976 | 35 |
| 1977 | 44 |
| 1978 | 23 |
| 1979 | 50 |
| 1980 | 36 |
| 1981 | 29 |
| 1982 | 30 |
| 1983 | 39 |
| 1984 | 31 |
| 1985 | 34 |
| 1986 | 22 |
| 1987 | 52 |
| 1988 | 21 |
| 1989 | 26 |
| 1990 | 24 |
| 1991 | 28 |
| 1992 | 49 |
| 1993 | 18 |
| 1994 | 15 |
| 1995 | 42 |
| 1996 | 46 |
| 1997 | 56 |
| 1998 | 64 |
| 1999 | 11 |
| 2000 | 13 |
| 2001 | 9 |
| 2002 | 11 |
| 2003 | 16 |
| 2004 | 17 |
| 2005 | 21 |
| 2006 | 19 |
| 2007 | 23 |
| 2008 | 29 |
| 2009 | 31 |
| 2010 | 36 |
| 2011 | 65 |
| 2012 | 89 |
| 2013 | 37 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2008-04-22 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
Wettest Day of Each Month
Aug: 100.1 mm (3.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 58.9 mm (2.3 in) | 1 January 2013 |
| Feb | 42.9 mm (1.7 in) | 3 February 2010 |
| Mar | 25.4 mm (1.0 in) | 30 March 2004 |
| Apr | 29.0 mm (1.1 in) | 16 April 1981 |
| May | 29.0 mm (1.1 in) | 11 May 2006 |
| Jun | 54.4 mm (2.1 in) | 23 June 2004 |
| Jul | 74.9 mm (2.9 in) | 10 July 1986 |
| Aug | 100.1 mm (3.9 in) | 2 August 1990 |
| Sep | 99.8 mm (3.9 in) | 17 September 1976 |
| Oct | 53.8 mm (2.1 in) | 9 October 1992 |
| Nov | 26.9 mm (1.1 in) | 26 November 1982 |
| Dec | 23.9 mm (0.9 in) | 2 December 1979 |
Period of Record Coverage
1972 to 2013| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1972 | 285 | 78% | No |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 334 | 92% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 362 | 99% | Yes |
| 2011 | 360 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 304 | 83% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 31 October 2013 | Sandovales, MX | daily high max | 28.9 C (84.0 F) | 1.1 C (2.0 F) | 12 years | 11 of 100 (Routine) |
| 29 October 2013 | Sandovales, MX | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 15 years | 12 of 100 (Routine) |
| 19 October 2013 | Sandovales, MX | daily high max (Tie) | 28.9 C (84.0 F) | tie | 34 years | 3 of 100 (Routine) |
| 16 October 2013 | Sandovales, MX | daily high max (Tie) | 28.9 C (84.0 F) | tie | 6 years | 1 of 100 (Routine) |
| 15 October 2013 | Sandovales, MX | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 34 years | 18 of 100 (Routine) |
| 14 October 2013 | Sandovales, MX | daily high max (Tie) | 28.9 C (84.0 F) | tie | 6 years | 1 of 100 (Routine) |
| 13 October 2013 | Sandovales, MX | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 20 years | 14 of 100 (Routine) |
| 12 October 2013 | Sandovales, MX | daily high max (Tie) | 28.9 C (84.0 F) | tie | 34 years | 3 of 100 (Routine) |
| 1 October 2013 | Sandovales, MX | daily high max (Tie) | 28.9 C (84.0 F) | tie | 34 years | 3 of 100 (Routine) |
| 30 September 2013 | Sandovales, MX | daily rain | 24.9 mm (1.0 in) | 15.0 mm (0.6 in) | 24 years | 20 of 100 (Routine) |
| 25 September 2013 | Sandovales, MX | daily high max | 28.9 C (84.0 F) | 1.1 C (2.0 F) | 31 years | 17 of 100 (Routine) |
| 23 September 2013 | Sandovales, MX | daily high max (Tie) | 28.9 C (84.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 20 September 2013 | Sandovales, MX | daily high max | 28.9 C (84.0 F) | 1.1 C (2.0 F) | 26 years | 15 of 100 (Routine) |
| 19 September 2013 | Sandovales, MX | daily high max | 30.6 C (87.1 F) | 0.6 C (1.1 F) | 26 years | 13 of 100 (Routine) |
| 15 September 2013 | Sandovales, MX | daily rain | 21.8 mm (0.9 in) | 1.0 mm (0.04 in) | 11 years | 7 of 100 (Routine) |
| 5 September 2013 | Sandovales, MX | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 30 years | 17 of 100 (Routine) |
| 2 September 2013 | Sandovales, MX | daily high max | 30.6 C (87.1 F) | 0.6 C (1.1 F) | 31 years | 15 of 100 (Routine) |
| 1 September 2013 | Sandovales, MX | daily high max | 30.6 C (87.1 F) | 2.3 C (4.1 F) | 30 years | 22 of 100 (Routine) |
| 31 August 2013 | Sandovales, MX | daily high max | 30.6 C (87.1 F) | 0.6 C (1.1 F) | 0 years | 6 of 100 (Routine) |
| 29 August 2013 | Sandovales, MX | daily low min (Tie) | 5.6 C (42.1 F) | tie | 0 years | 1 of 100 (Routine) |
Climate Trend
39 complete years, 1973 to 2012| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1973 | 16.3 C | +0.39 C |
| 1974 | 16.4 C | +0.46 C |
| 1976 | 15.7 C | -0.24 C |
| 1977 | 16.0 C | +0.05 C |
| 1978 | 15.9 C | -0.02 C |
| 1979 | 16.4 C | +0.48 C |
| 1980 | 15.8 C | -0.16 C |
| 1981 | 16.1 C | +0.15 C |
| 1982 | 16.5 C | +0.58 C |
| 1983 | 15.4 C | -0.54 C |
| 1984 | 15.5 C | -0.38 C |
| 1985 | 15.9 C | -0.03 C |
| 1986 | 15.8 C | -0.12 C |
| 1987 | 15.8 C | -0.10 C |
| 1988 | 15.9 C | -0.07 C |
| 1989 | 15.6 C | -0.35 C |
| 1990 | 15.7 C | -0.21 C |
| 1991 | 15.4 C | -0.57 C |
| 1992 | 14.9 C | -1.04 C |
| 1993 | 16.0 C | +0.09 C |
| 1994 | 16.6 C | +0.71 C |
| 1995 | 16.5 C | +0.53 C |
| 1996 | 16.7 C | +0.75 C |
| 1997 | 15.9 C | -0.03 C |
| 1998 | 17.2 C | +1.23 C |
| 1999 | 15.8 C | -0.10 C |
| 2000 | 16.0 C | +0.03 C |
| 2001 | 15.4 C | -0.50 C |
| 2002 | 15.9 C | -0.01 C |
| 2003 | 16.0 C | +0.12 C |
| 2004 | 15.3 C | -0.61 C |
| 2005 | 15.7 C | -0.22 C |
| 2006 | 15.8 C | -0.10 C |
| 2007 | 15.7 C | -0.27 C |
| 2008 | 15.8 C | -0.15 C |
| 2009 | 16.5 C | +0.60 C |
| 2010 | 15.7 C | -0.19 C |
| 2011 | 16.9 C | +1.02 C |
| 2012 | 14.7 C | -1.25 C |
The fitted trend in annual mean temperature here over 1973 to 2012 is -0.04 C (-0.18 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.2) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.04 C (-0.18 to 0.11) per decade | -0.1 F (-0.3 to 0.2) per decade | 1973 to 2012 | 39 | Not clearly different from zero |
| Mean daily maximum | 0.3 C (0.1 to 0.6) per decade | 0.6 F (0.2 to 1.0) per decade | 1973 to 2012 | 39 | Rise |
| Mean daily minimum | -0.4 C (-0.6 to -0.3) per decade | -0.8 F (-1.0 to -0.5) per decade | 1973 to 2012 | 39 | 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
1972 to 2013| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.9 C (102.0 F) | 2008 | 33.9 C (93.0 F) | 42 |
| Coldest night (TNn) | -8.3 C (17.1 F) | 1997 | -3.3 C (26.1 F) | 42 |
| Wettest day (Rx1day) | 100.1 mm (3.9 in) | 1990 | 44.5 mm (1.8 in) | 42 |
| Wettest five days (Rx5day) | 182.4 mm (7.2 in) | 2008 | 81.9 mm (3.2 in) | 42 |
| Longest dry spell (CDD) | 192 days | 1977 | 106 days | 42 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1972 | 35.0 C (95.0 F) |
| 1973 | 33.9 C (93.0 F) |
| 1974 | 32.8 C (91.0 F) |
| 1975 | 32.8 C (91.0 F) |
| 1976 | 31.7 C (89.1 F) |
| 1977 | 31.7 C (89.1 F) |
| 1978 | 32.8 C (91.0 F) |
| 1979 | 32.8 C (91.0 F) |
| 1980 | 33.9 C (93.0 F) |
| 1981 | 33.9 C (93.0 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 35.0 C (95.0 F) |
| 1984 | 32.8 C (91.0 F) |
| 1985 | 32.8 C (91.0 F) |
| 1986 | 32.8 C (91.0 F) |
| 1987 | 30.6 C (87.1 F) |
| 1988 | 33.9 C (93.0 F) |
| 1989 | 33.9 C (93.0 F) |
| 1990 | 34.4 C (93.9 F) |
| 1991 | 32.8 C (91.0 F) |
| 1992 | 31.7 C (89.1 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 35.0 C (95.0 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 36.7 C (98.1 F) |
| 1999 | 31.7 C (89.1 F) |
| 2000 | 32.8 C (91.0 F) |
| 2001 | 32.8 C (91.0 F) |
| 2002 | 33.9 C (93.0 F) |
| 2003 | 35.0 C (95.0 F) |
| 2004 | 32.8 C (91.0 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 33.9 C (93.0 F) |
| 2007 | 33.9 C (93.0 F) |
| 2008 | 38.9 C (102.0 F) |
| 2009 | 35.0 C (95.0 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 38.9 C (102.0 F) |
| 2012 | 33.9 C (93.0 F) |
| 2013 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1972 | -5.0 C (23.0 F) |
| 1973 | -4.4 C (24.1 F) |
| 1974 | -3.3 C (26.1 F) |
| 1975 | -4.4 C (24.1 F) |
| 1976 | -6.1 C (21.0 F) |
| 1977 | -5.0 C (23.0 F) |
| 1978 | -1.1 C (30.0 F) |
| 1979 | -3.3 C (26.1 F) |
| 1980 | -3.3 C (26.1 F) |
| 1981 | -5.0 C (23.0 F) |
| 1982 | -3.3 C (26.1 F) |
| 1983 | -4.4 C (24.1 F) |
| 1984 | -3.9 C (25.0 F) |
| 1985 | -5.0 C (23.0 F) |
| 1986 | -3.3 C (26.1 F) |
| 1987 | -3.3 C (26.1 F) |
| 1988 | -5.0 C (23.0 F) |
| 1989 | -5.0 C (23.0 F) |
| 1990 | -3.3 C (26.1 F) |
| 1991 | -4.4 C (24.1 F) |
| 1992 | -5.0 C (23.0 F) |
| 1993 | -2.2 C (28.0 F) |
| 1994 | -3.3 C (26.1 F) |
| 1995 | -5.0 C (23.0 F) |
| 1996 | -5.0 C (23.0 F) |
| 1997 | -8.3 C (17.1 F) |
| 1998 | -2.2 C (28.0 F) |
| 1999 | -4.4 C (24.1 F) |
| 2000 | -4.4 C (24.1 F) |
| 2001 | 0.0 C (32.0 F) |
| 2002 | 0.0 C (32.0 F) |
| 2003 | 0.0 C (32.0 F) |
| 2004 | -3.3 C (26.1 F) |
| 2005 | 0.6 C (33.1 F) |
| 2006 | -6.1 C (21.0 F) |
| 2007 | -3.3 C (26.1 F) |
| 2008 | 0.0 C (32.0 F) |
| 2009 | 0.0 C (32.0 F) |
| 2010 | 0.0 C (32.0 F) |
| 2011 | 0.0 C (32.0 F) |
| 2012 | 0.6 C (33.1 F) |
| 2013 | 1.7 C (35.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1972 | 25.4 mm (1.0 in) |
| 1973 | 48.8 mm (1.9 in) |
| 1974 | 29.0 mm (1.1 in) |
| 1975 | 53.3 mm (2.1 in) |
| 1976 | 99.8 mm (3.9 in) |
| 1977 | 59.9 mm (2.4 in) |
| 1978 | 39.9 mm (1.6 in) |
| 1979 | 46.0 mm (1.8 in) |
| 1980 | 32.8 mm (1.3 in) |
| 1981 | 29.0 mm (1.1 in) |
| 1982 | 46.0 mm (1.8 in) |
| 1983 | 41.9 mm (1.6 in) |
| 1984 | 41.9 mm (1.6 in) |
| 1985 | 46.0 mm (1.8 in) |
| 1986 | 74.9 mm (2.9 in) |
| 1987 | 63.0 mm (2.5 in) |
| 1988 | 72.9 mm (2.9 in) |
| 1989 | 24.9 mm (1.0 in) |
| 1990 | 100.1 mm (3.9 in) |
| 1991 | 63.8 mm (2.5 in) |
| 1992 | 55.9 mm (2.2 in) |
| 1993 | 26.9 mm (1.1 in) |
| 1994 | 23.9 mm (0.9 in) |
| 1995 | 49.8 mm (2.0 in) |
| 1996 | 32.8 mm (1.3 in) |
| 1997 | 21.8 mm (0.9 in) |
| 1998 | 53.8 mm (2.1 in) |
| 1999 | 31.8 mm (1.3 in) |
| 2000 | 17.0 mm (0.7 in) |
| 2001 | 25.4 mm (1.0 in) |
| 2002 | 24.9 mm (1.0 in) |
| 2003 | 48.8 mm (1.9 in) |
| 2004 | 64.8 mm (2.6 in) |
| 2005 | 33.8 mm (1.3 in) |
| 2006 | 41.9 mm (1.6 in) |
| 2007 | 33.8 mm (1.3 in) |
| 2008 | 77.0 mm (3.0 in) |
| 2009 | 57.9 mm (2.3 in) |
| 2010 | 42.9 mm (1.7 in) |
| 2011 | 39.9 mm (1.6 in) |
| 2012 | 58.9 mm (2.3 in) |
| 2013 | 58.9 mm (2.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1972 | 70.3 mm (2.8 in) |
| 1973 | 113.3 mm (4.5 in) |
| 1974 | 61.7 mm (2.4 in) |
| 1975 | 107.5 mm (4.2 in) |
| 1976 | 103.6 mm (4.1 in) |
| 1977 | 109.5 mm (4.3 in) |
| 1978 | 91.5 mm (3.6 in) |
| 1979 | 70.9 mm (2.8 in) |
| 1980 | 42.4 mm (1.7 in) |
| 1981 | 29.0 mm (1.1 in) |
| 1982 | 93.7 mm (3.7 in) |
| 1983 | 66.9 mm (2.6 in) |
| 1984 | 76.7 mm (3.0 in) |
| 1985 | 105.4 mm (4.1 in) |
| 1986 | 116.9 mm (4.6 in) |
| 1987 | 75.7 mm (3.0 in) |
| 1988 | 119.4 mm (4.7 in) |
| 1989 | 47.8 mm (1.9 in) |
| 1990 | 140.5 mm (5.5 in) |
| 1991 | 119.4 mm (4.7 in) |
| 1992 | 109.5 mm (4.3 in) |
| 1993 | 51.6 mm (2.0 in) |
| 1994 | 42.2 mm (1.7 in) |
| 1995 | 77.3 mm (3.0 in) |
| 1996 | 86.4 mm (3.4 in) |
| 1997 | 37.4 mm (1.5 in) |
| 1998 | 75.0 mm (3.0 in) |
| 1999 | 50.5 mm (2.0 in) |
| 2000 | 33.7 mm (1.3 in) |
| 2001 | 52.1 mm (2.1 in) |
| 2002 | 60.9 mm (2.4 in) |
| 2003 | 116.1 mm (4.6 in) |
| 2004 | 115.5 mm (4.5 in) |
| 2005 | 63.8 mm (2.5 in) |
| 2006 | 123.4 mm (4.9 in) |
| 2007 | 100.8 mm (4.0 in) |
| 2008 | 182.4 mm (7.2 in) |
| 2009 | 93.7 mm (3.7 in) |
| 2010 | 110.2 mm (4.3 in) |
| 2011 | 77.0 mm (3.0 in) |
| 2012 | 74.7 mm (2.9 in) |
| 2013 | 117.4 mm (4.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1972 | 62 days |
| 1973 | 84 days |
| 1974 | 148 days |
| 1975 | 122 days |
| 1976 | 166 days |
| 1977 | 192 days |
| 1978 | 97 days |
| 1979 | 127 days |
| 1980 | 80 days |
| 1981 | 64 days |
| 1982 | 109 days |
| 1983 | 127 days |
| 1984 | 97 days |
| 1985 | 97 days |
| 1986 | 147 days |
| 1987 | 93 days |
| 1988 | 68 days |
| 1989 | 146 days |
| 1990 | 79 days |
| 1991 | 125 days |
| 1992 | 94 days |
| 1993 | 103 days |
| 1994 | 86 days |
| 1995 | 121 days |
| 1996 | 113 days |
| 1997 | 60 days |
| 1998 | 159 days |
| 1999 | 165 days |
| 2000 | 141 days |
| 2001 | 67 days |
| 2002 | 67 days |
| 2003 | 66 days |
| 2004 | 64 days |
| 2005 | 111 days |
| 2006 | 71 days |
| 2007 | 109 days |
| 2008 | 108 days |
| 2009 | 128 days |
| 2010 | 100 days |
| 2011 | 105 days |
| 2012 | 106 days |
| 2013 | 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
31 years with a frostAcross 31 years with a frost, the median last spring frost at Sandovales falls on 6 March and the median first autumn frost on 15 November, which leaves a median of 260 days between them.
Fitted over all years, the growing season changes by +7.6 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 | 6 March | n/a | 6 March | n/a | -9.7 days per decade |
| First autumn frost | 15 November | n/a | 15 November | n/a | -2.2 days per decade |
| Growing days | 260 days | n/a | 256 days | n/a | +7.6 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
40 years, 1973 to 2012A day with at least 43.6 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 111.0 mm (4.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 43.6 mm (1.7 in) | |
| 5 years | 61.5 mm (2.4 in) | |
| 10 years | 73.4 mm (2.9 in) | |
| 25 years | 88.5 mm (3.5 in) | |
| 50 years | 99.8 mm (3.9 in) | Longer than the 40 years of record |
| 100 years | 111.0 mm (4.4 in) | Longer than the 40 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, 40 years of values from 1973 to 2012.
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: 100.1 mm (3.9 in) in 1990; 99.8 mm (3.9 in) in 1976; 77.0 mm (3.0 in) in 2008.
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).