San Bartolo Weather Records (MXN00001022)
Record envelope, standing records and threshold days for San Bartolo (MXN00001022), Mexico, with 65 years of record.
Key Facts for San Bartolo
- San Bartolo (MXN00001022) is a weather station in Mexico at 21.73 latitude and -102.17 longitude, 1,997 m (6,553 ft) above sea level.
- The station reports from 1949 to 2013, 65 years of record.
- 1,464 records set at San Bartolo still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- San Bartolo set a daily record precipitation of 29.2 mm (1.1 in) on 17 September 2013.
About the Station
- Location: Mexico, 21.73 latitude, -102.17 longitude.
- Elevation: 1,997 m (6,553 ft).
- Period of record: 1949 to 2013, 65 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 | 38.3 C (100.9 F) | -7.8 C (18.0 F) | n/a | n/a |
| Feb | 38.3 C (100.9 F) | -7.8 C (18.0 F) | n/a | n/a |
| Mar | 40.0 C (104.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Apr | 40.6 C (105.1 F) | -2.2 C (28.0 F) | n/a | n/a |
| May | 42.2 C (108.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Jun | 42.2 C (108.0 F) | 3.9 C (39.0 F) | n/a | n/a |
| Jul | 39.4 C (102.9 F) | 5.6 C (42.1 F) | n/a | n/a |
| Aug | 42.8 C (109.0 F) | 7.2 C (45.0 F) | n/a | n/a |
| Sep | 39.4 C (102.9 F) | 3.3 C (37.9 F) | n/a | n/a |
| Oct | 35.0 C (95.0 F) | -1.1 C (30.0 F) | n/a | n/a |
| Nov | 38.3 C (100.9 F) | -6.1 C (21.0 F) | n/a | n/a |
| Dec | 35.0 C (95.0 F) | -10.0 C (14.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1949 | 7 |
| 1950 | 11 |
| 1951 | 39 |
| 1952 | 71 |
| 1953 | 184 |
| 1954 | 153 |
| 1955 | 129 |
| 1956 | 14 |
| 1957 | 13 |
| 1958 | 15 |
| 1959 | 13 |
| 1960 | 16 |
| 1962 | 9 |
| 1963 | 48 |
| 1964 | 29 |
| 1965 | 10 |
| 1966 | 18 |
| 1967 | 24 |
| 1968 | 19 |
| 1969 | 19 |
| 1970 | 12 |
| 1971 | 13 |
| 1972 | 28 |
| 1973 | 17 |
| 1974 | 9 |
| 1975 | 10 |
| 1976 | 21 |
| 1977 | 13 |
| 1978 | 10 |
| 1979 | 21 |
| 1980 | 8 |
| 1981 | 11 |
| 1982 | 5 |
| 1983 | 14 |
| 1984 | 17 |
| 1985 | 10 |
| 1986 | 14 |
| 1987 | 24 |
| 1988 | 26 |
| 1989 | 23 |
| 1990 | 14 |
| 1991 | 17 |
| 1992 | 25 |
| 1993 | 14 |
| 1994 | 8 |
| 1995 | 15 |
| 1996 | 4 |
| 1997 | 47 |
| 1998 | 7 |
| 1999 | 12 |
| 2000 | 5 |
| 2001 | 6 |
| 2002 | 2 |
| 2003 | 9 |
| 2004 | 18 |
| 2005 | 4 |
| 2006 | 8 |
| 2007 | 32 |
| 2008 | 16 |
| 2009 | 26 |
| 2010 | 8 |
| 2011 | 6 |
| 2012 | 8 |
| 2013 | 6 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1991-07-07 | Record daily precipitation | Record daily precipitation 95.3 mm (3.8 in) |
| 2013-06-14 | Record daily precipitation | Record daily precipitation 106.7 mm (4.2 in) |
Wettest Day of Each Month
Jun: 106.7 mm (4.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 46.0 mm (1.8 in) | 1 January 2013 |
| Feb | 45.2 mm (1.8 in) | 2 February 2010 |
| Mar | 38.9 mm (1.5 in) | 4 March 1968 |
| Apr | 27.7 mm (1.1 in) | 16 April 1959 |
| May | 51.8 mm (2.0 in) | 12 May 1956 |
| Jun | 106.7 mm (4.2 in) | 14 June 2013 |
| Jul | 95.3 mm (3.8 in) | 7 July 1991 |
| Aug | 90.4 mm (3.6 in) | 14 August 1973 |
| Sep | 79.8 mm (3.1 in) | 26 September 1970 |
| Oct | 60.2 mm (2.4 in) | 7 October 1982 |
| Nov | 47.5 mm (1.9 in) | 13 November 1992 |
| Dec | 29.0 mm (1.1 in) | 10 December 1953 |
Period of Record Coverage
1949 to 2013| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1949 | 242 | 66% | No |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 363 | 99% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1962 | 362 | 99% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 363 | 99% | 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 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 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 | 362 | 99% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 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 | 355 | 97% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 363 | 99% | Yes |
| 2011 | 357 | 98% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 273 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 17 September 2013 | San Bartolo, MX | daily rain | 29.2 mm (1.1 in) | 3.3 mm (0.13 in) | 48 years | 22 of 100 (Routine) |
| 16 September 2013 | San Bartolo, MX | daily low max | 20.6 C (69.1 F) | 0.5 C (0.9 F) | 30 years | 16 of 100 (Routine) |
| 3 September 2013 | San Bartolo, MX | daily low min (Tie) | 8.9 C (48.0 F) | tie | 8 years | 2 of 100 (Routine) |
| 31 August 2013 | San Bartolo, MX | daily low min (Tie) | 7.8 C (46.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 30 August 2013 | San Bartolo, MX | daily low min (Tie) | 8.9 C (48.0 F) | tie | 7 years | 2 of 100 (Routine) |
| 29 August 2013 | San Bartolo, MX | daily low min | 8.9 C (48.0 F) | 0.5 C (0.9 F) | 44 years | 21 of 100 (Routine) |
| 22 August 2013 | San Bartolo, MX | daily low min | 8.9 C (48.0 F) | 0.5 C (0.9 F) | 40 years | 20 of 100 (Routine) |
| 20 August 2013 | San Bartolo, MX | daily low min | 7.8 C (46.0 F) | 1.1 C (2.0 F) | 8 years | 13 of 100 (Routine) |
| 19 August 2013 | San Bartolo, MX | daily low min (Tie) | 8.9 C (48.0 F) | tie | 12 years | 2 of 100 (Routine) |
| 15 August 2013 | San Bartolo, MX | daily low min (Tie) | 8.9 C (48.0 F) | tie | 0 years | 1 of 100 (Routine) |
| 14 August 2013 | San Bartolo, MX | daily low min (Tie) | 10.0 C (50.0 F) | tie | 51 years | 5 of 100 (Routine) |
| 28 July 2013 | San Bartolo, MX | daily low min (Tie) | 8.9 C (48.0 F) | tie | 19 years | 2 of 100 (Routine) |
| 19 July 2013 | San Bartolo, MX | daily rain | 29.0 mm (1.1 in) | 8.2 mm (0.32 in) | 31 years | 22 of 100 (Routine) |
| 4 July 2013 | San Bartolo, MX | daily low min (Tie) | 8.9 C (48.0 F) | tie | 10 years | 2 of 100 (Routine) |
| 14 June 2013 | San Bartolo, MX | all-time rain | 106.7 mm (4.2 in) | 11.4 mm (0.4 in) | 21 years | 42 of 100 (Notable) |
| 13 May 2013 | San Bartolo, MX | daily rain | 6.1 mm (0.24 in) | 1.0 mm (0.04 in) | 28 years | 15 of 100 (Routine) |
| 30 April 2013 | San Bartolo, MX | daily low min | 3.9 C (39.0 F) | 1.1 C (2.0 F) | 36 years | 19 of 100 (Routine) |
| 3 March 2013 | San Bartolo, MX | daily low min | -3.3 C (26.1 F) | 2.2 C (4.0 F) | 42 years | 25 of 100 (Routine) |
| 2 March 2013 | San Bartolo, MX | daily low min (Tie) | -2.2 C (28.0 F) | tie | 40 years | 4 of 100 (Routine) |
| 1 March 2013 | San Bartolo, MX | daily low max (Tie) | 18.9 C (66.0 F) | tie | 46 years | 4 of 100 (Routine) |
Climate Trend
62 complete years, 1950 to 2012| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1950 | 17.5 C | +0.06 C |
| 1951 | 18.5 C | +1.14 C |
| 1952 | 19.6 C | +2.23 C |
| 1953 | 21.4 C | +3.97 C |
| 1954 | 21.9 C | +4.51 C |
| 1955 | 21.0 C | +3.59 C |
| 1956 | 18.0 C | +0.61 C |
| 1957 | 18.1 C | +0.69 C |
| 1958 | 17.6 C | +0.15 C |
| 1959 | 17.2 C | -0.17 C |
| 1960 | 17.9 C | +0.45 C |
| 1962 | 18.1 C | +0.73 C |
| 1963 | 16.8 C | -0.61 C |
| 1964 | 17.0 C | -0.37 C |
| 1965 | 17.3 C | -0.06 C |
| 1966 | 17.2 C | -0.25 C |
| 1967 | 17.4 C | -0.01 C |
| 1968 | 17.5 C | +0.05 C |
| 1969 | 18.2 C | +0.76 C |
| 1970 | 17.6 C | +0.19 C |
| 1971 | 17.7 C | +0.30 C |
| 1972 | 18.3 C | +0.86 C |
| 1973 | 17.7 C | +0.27 C |
| 1974 | 17.6 C | +0.20 C |
| 1975 | 17.0 C | -0.44 C |
| 1976 | 16.3 C | -1.12 C |
| 1977 | 16.7 C | -0.68 C |
| 1978 | 16.4 C | -1.03 C |
| 1979 | 16.5 C | -0.92 C |
| 1980 | 16.7 C | -0.73 C |
| 1981 | 16.5 C | -0.91 C |
| 1982 | 17.0 C | -0.37 C |
| 1983 | 16.6 C | -0.82 C |
| 1984 | 16.5 C | -0.90 C |
| 1985 | 16.8 C | -0.65 C |
| 1986 | 16.7 C | -0.69 C |
| 1987 | 16.1 C | -1.30 C |
| 1988 | 16.0 C | -1.40 C |
| 1989 | 16.1 C | -1.28 C |
| 1990 | 16.3 C | -1.07 C |
| 1991 | 16.3 C | -1.11 C |
| 1992 | 15.8 C | -1.58 C |
| 1993 | 16.2 C | -1.21 C |
| 1994 | 16.7 C | -0.67 C |
| 1995 | 17.1 C | -0.35 C |
| 1996 | 17.5 C | +0.09 C |
| 1997 | 15.6 C | -1.80 C |
| 1998 | 17.5 C | +0.09 C |
| 1999 | 17.8 C | +0.35 C |
| 2000 | 18.3 C | +0.85 C |
| 2001 | 19.0 C | +1.57 C |
| 2002 | 17.2 C | -0.21 C |
| 2003 | 17.3 C | -0.15 C |
| 2004 | 16.8 C | -0.61 C |
| 2005 | 17.8 C | +0.42 C |
| 2006 | 16.1 C | -1.32 C |
| 2007 | 17.9 C | +0.54 C |
| 2008 | 16.8 C | -0.56 C |
| 2009 | 19.2 C | +1.77 C |
| 2010 | 17.1 C | -0.27 C |
| 2011 | 17.7 C | +0.29 C |
| 2012 | 16.6 C | -0.85 C |
The annual mean temperature here has fallen by 0.3 C (0.1 to 0.4) per decade over 1950 to 2012. In Fahrenheit: 0.5 F (0.2 to 0.8) per decade. The slope is a straight line fitted to 62 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.3 C (-0.4 to -0.1) per decade | -0.5 F (-0.8 to -0.2) per decade | 1950 to 2012 | 62 | Fall |
| Mean daily maximum | -0.3 C (-0.5 to -0.1) per decade | -0.5 F (-1.0 to -0.1) per decade | 1950 to 2012 | 62 | Fall |
| Mean daily minimum | -0.3 C (-0.4 to -0.1) per decade | -0.5 F (-0.7 to -0.3) per decade | 1950 to 2012 | 62 | 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
1949 to 2013| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1952 | 35.0 C (95.0 F) | 64 |
| Coldest night (TNn) | -10.0 C (14.0 F) | 1963 | -4.4 C (24.1 F) | 64 |
| Wettest day (Rx1day) | 106.7 mm (4.2 in) | 2013 | 48.3 mm (1.9 in) | 65 |
| Wettest five days (Rx5day) | 208.3 mm (8.2 in) | 1973 | 87.1 mm (3.4 in) | 65 |
| Longest dry spell (CDD) | 159 days | 1953 | 87 days | 65 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1949 | 35.0 C (95.0 F) |
| 1950 | 33.9 C (93.0 F) |
| 1951 | 35.6 C (96.1 F) |
| 1952 | 42.8 C (109.0 F) |
| 1953 | 42.2 C (108.0 F) |
| 1954 | 42.2 C (108.0 F) |
| 1955 | 40.6 C (105.1 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 32.8 C (91.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | n/a |
| 1962 | 37.2 C (99.0 F) |
| 1963 | 36.1 C (97.0 F) |
| 1964 | 35.0 C (95.0 F) |
| 1965 | 34.4 C (93.9 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 35.6 C (96.1 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 33.3 C (91.9 F) |
| 1977 | 32.8 C (91.0 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 34.4 C (93.9 F) |
| 1980 | 34.4 C (93.9 F) |
| 1981 | 32.8 C (91.0 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 36.7 C (98.1 F) |
| 1984 | 33.3 C (91.9 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 35.0 C (95.0 F) |
| 1987 | 31.7 C (89.1 F) |
| 1988 | 35.0 C (95.0 F) |
| 1989 | 34.4 C (93.9 F) |
| 1990 | 34.4 C (93.9 F) |
| 1991 | 33.9 C (93.0 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 32.8 C (91.0 F) |
| 1995 | 33.9 C (93.0 F) |
| 1996 | 35.0 C (95.0 F) |
| 1997 | 31.7 C (89.1 F) |
| 1998 | 35.0 C (95.0 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 35.0 C (95.0 F) |
| 2001 | 33.9 C (93.0 F) |
| 2002 | 33.9 C (93.0 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 37.8 C (100.0 F) |
| 2005 | 35.6 C (96.1 F) |
| 2006 | 32.8 C (91.0 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 38.9 C (102.0 F) |
| 2009 | 36.7 C (98.1 F) |
| 2010 | 36.7 C (98.1 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 35.6 C (96.1 F) |
| 2013 | 32.8 C (91.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1949 | -2.8 C (27.0 F) |
| 1950 | -5.0 C (23.0 F) |
| 1951 | -5.6 C (21.9 F) |
| 1952 | -7.8 C (18.0 F) |
| 1953 | -2.2 C (28.0 F) |
| 1954 | -1.1 C (30.0 F) |
| 1955 | -5.6 C (21.9 F) |
| 1956 | -2.8 C (27.0 F) |
| 1957 | -4.4 C (24.1 F) |
| 1958 | -3.3 C (26.1 F) |
| 1959 | -4.4 C (24.1 F) |
| 1960 | -7.8 C (18.0 F) |
| 1961 | n/a |
| 1962 | -3.3 C (26.1 F) |
| 1963 | -10.0 C (14.0 F) |
| 1964 | -7.8 C (18.0 F) |
| 1965 | -3.9 C (25.0 F) |
| 1966 | -5.6 C (21.9 F) |
| 1967 | -7.2 C (19.0 F) |
| 1968 | -2.8 C (27.0 F) |
| 1969 | -3.3 C (26.1 F) |
| 1970 | -4.4 C (24.1 F) |
| 1971 | -4.4 C (24.1 F) |
| 1972 | -5.0 C (23.0 F) |
| 1973 | -5.0 C (23.0 F) |
| 1974 | -3.9 C (25.0 F) |
| 1975 | -5.0 C (23.0 F) |
| 1976 | -7.8 C (18.0 F) |
| 1977 | -2.8 C (27.0 F) |
| 1978 | -2.8 C (27.0 F) |
| 1979 | -5.6 C (21.9 F) |
| 1980 | -2.8 C (27.0 F) |
| 1981 | -4.4 C (24.1 F) |
| 1982 | -3.3 C (26.1 F) |
| 1983 | -5.0 C (23.0 F) |
| 1984 | -2.8 C (27.0 F) |
| 1985 | -6.1 C (21.0 F) |
| 1986 | -5.0 C (23.0 F) |
| 1987 | -3.9 C (25.0 F) |
| 1988 | -5.6 C (21.9 F) |
| 1989 | -5.0 C (23.0 F) |
| 1990 | -4.4 C (24.1 F) |
| 1991 | -4.4 C (24.1 F) |
| 1992 | -2.8 C (27.0 F) |
| 1993 | -3.9 C (25.0 F) |
| 1994 | -5.0 C (23.0 F) |
| 1995 | -4.4 C (24.1 F) |
| 1996 | -4.4 C (24.1 F) |
| 1997 | -6.1 C (21.0 F) |
| 1998 | 0.0 C (32.0 F) |
| 1999 | -4.4 C (24.1 F) |
| 2000 | -2.2 C (28.0 F) |
| 2001 | -2.2 C (28.0 F) |
| 2002 | -3.3 C (26.1 F) |
| 2003 | -3.3 C (26.1 F) |
| 2004 | -2.2 C (28.0 F) |
| 2005 | -2.2 C (28.0 F) |
| 2006 | -3.3 C (26.1 F) |
| 2007 | -5.0 C (23.0 F) |
| 2008 | -5.0 C (23.0 F) |
| 2009 | -3.3 C (26.1 F) |
| 2010 | -4.4 C (24.1 F) |
| 2011 | -6.1 C (21.0 F) |
| 2012 | -2.2 C (28.0 F) |
| 2013 | -3.3 C (26.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1949 | 47.0 mm (1.9 in) |
| 1950 | 70.6 mm (2.8 in) |
| 1951 | 47.0 mm (1.9 in) |
| 1952 | 38.4 mm (1.5 in) |
| 1953 | 39.1 mm (1.5 in) |
| 1954 | 48.3 mm (1.9 in) |
| 1955 | 36.8 mm (1.4 in) |
| 1956 | 91.4 mm (3.6 in) |
| 1957 | 33.8 mm (1.3 in) |
| 1958 | 38.1 mm (1.5 in) |
| 1959 | 62.5 mm (2.5 in) |
| 1960 | 66.8 mm (2.6 in) |
| 1961 | 37.3 mm (1.5 in) |
| 1962 | 42.7 mm (1.7 in) |
| 1963 | 32.5 mm (1.3 in) |
| 1964 | 56.6 mm (2.2 in) |
| 1965 | 55.4 mm (2.2 in) |
| 1966 | 30.0 mm (1.2 in) |
| 1967 | 57.9 mm (2.3 in) |
| 1968 | 38.9 mm (1.5 in) |
| 1969 | 46.2 mm (1.8 in) |
| 1970 | 79.8 mm (3.1 in) |
| 1971 | 38.9 mm (1.5 in) |
| 1972 | 40.9 mm (1.6 in) |
| 1973 | 90.4 mm (3.6 in) |
| 1974 | 24.4 mm (1.0 in) |
| 1975 | 57.9 mm (2.3 in) |
| 1976 | 34.8 mm (1.4 in) |
| 1977 | 48.3 mm (1.9 in) |
| 1978 | 78.5 mm (3.1 in) |
| 1979 | 67.8 mm (2.7 in) |
| 1980 | 52.1 mm (2.1 in) |
| 1981 | 42.4 mm (1.7 in) |
| 1982 | 84.3 mm (3.3 in) |
| 1983 | 34.3 mm (1.4 in) |
| 1984 | 26.9 mm (1.1 in) |
| 1985 | 27.7 mm (1.1 in) |
| 1986 | 44.7 mm (1.8 in) |
| 1987 | 57.9 mm (2.3 in) |
| 1988 | 60.5 mm (2.4 in) |
| 1989 | 50.8 mm (2.0 in) |
| 1990 | 48.3 mm (1.9 in) |
| 1991 | 95.3 mm (3.8 in) |
| 1992 | 47.5 mm (1.9 in) |
| 1993 | 34.8 mm (1.4 in) |
| 1994 | 56.9 mm (2.2 in) |
| 1995 | 79.8 mm (3.1 in) |
| 1996 | 52.6 mm (2.1 in) |
| 1997 | 24.4 mm (1.0 in) |
| 1998 | 35.8 mm (1.4 in) |
| 1999 | 49.8 mm (2.0 in) |
| 2000 | 52.8 mm (2.1 in) |
| 2001 | 40.9 mm (1.6 in) |
| 2002 | 40.9 mm (1.6 in) |
| 2003 | 59.9 mm (2.4 in) |
| 2004 | 33.3 mm (1.3 in) |
| 2005 | 64.8 mm (2.6 in) |
| 2006 | 43.4 mm (1.7 in) |
| 2007 | 65.8 mm (2.6 in) |
| 2008 | 59.9 mm (2.4 in) |
| 2009 | 68.8 mm (2.7 in) |
| 2010 | 46.0 mm (1.8 in) |
| 2011 | 47.0 mm (1.9 in) |
| 2012 | 53.8 mm (2.1 in) |
| 2013 | 106.7 mm (4.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1949 | 90.7 mm (3.6 in) |
| 1950 | 94.3 mm (3.7 in) |
| 1951 | 83.8 mm (3.3 in) |
| 1952 | 81.8 mm (3.2 in) |
| 1953 | 86.3 mm (3.4 in) |
| 1954 | 115.7 mm (4.6 in) |
| 1955 | 73.9 mm (2.9 in) |
| 1956 | 131.6 mm (5.2 in) |
| 1957 | 44.4 mm (1.7 in) |
| 1958 | 65.7 mm (2.6 in) |
| 1959 | 89.2 mm (3.5 in) |
| 1960 | 121.3 mm (4.8 in) |
| 1961 | 63.6 mm (2.5 in) |
| 1962 | 77.2 mm (3.0 in) |
| 1963 | 74.7 mm (2.9 in) |
| 1964 | 67.7 mm (2.7 in) |
| 1965 | 67.8 mm (2.7 in) |
| 1966 | 54.7 mm (2.2 in) |
| 1967 | 115.4 mm (4.5 in) |
| 1968 | 77.0 mm (3.0 in) |
| 1969 | 66.8 mm (2.6 in) |
| 1970 | 128.3 mm (5.1 in) |
| 1971 | 110.0 mm (4.3 in) |
| 1972 | 81.6 mm (3.2 in) |
| 1973 | 208.3 mm (8.2 in) |
| 1974 | 69.6 mm (2.7 in) |
| 1975 | 99.8 mm (3.9 in) |
| 1976 | 90.2 mm (3.6 in) |
| 1977 | 99.3 mm (3.9 in) |
| 1978 | 110.6 mm (4.4 in) |
| 1979 | 98.3 mm (3.9 in) |
| 1980 | 94.0 mm (3.7 in) |
| 1981 | 51.7 mm (2.0 in) |
| 1982 | 120.4 mm (4.7 in) |
| 1983 | 94.7 mm (3.7 in) |
| 1984 | 50.5 mm (2.0 in) |
| 1985 | 77.5 mm (3.1 in) |
| 1986 | 63.2 mm (2.5 in) |
| 1987 | 136.5 mm (5.4 in) |
| 1988 | 128.0 mm (5.0 in) |
| 1989 | 86.1 mm (3.4 in) |
| 1990 | 86.9 mm (3.4 in) |
| 1991 | 174.1 mm (6.9 in) |
| 1992 | 96.3 mm (3.8 in) |
| 1993 | 57.6 mm (2.3 in) |
| 1994 | 105.9 mm (4.2 in) |
| 1995 | 101.4 mm (4.0 in) |
| 1996 | 112.4 mm (4.4 in) |
| 1997 | 49.6 mm (2.0 in) |
| 1998 | 67.0 mm (2.6 in) |
| 1999 | 66.9 mm (2.6 in) |
| 2000 | 62.3 mm (2.5 in) |
| 2001 | 60.5 mm (2.4 in) |
| 2002 | 101.4 mm (4.0 in) |
| 2003 | 197.1 mm (7.8 in) |
| 2004 | 87.1 mm (3.4 in) |
| 2005 | 91.5 mm (3.6 in) |
| 2006 | 83.3 mm (3.3 in) |
| 2007 | 150.9 mm (5.9 in) |
| 2008 | 158.0 mm (6.2 in) |
| 2009 | 85.3 mm (3.4 in) |
| 2010 | 106.8 mm (4.2 in) |
| 2011 | 60.2 mm (2.4 in) |
| 2012 | 67.6 mm (2.7 in) |
| 2013 | 121.4 mm (4.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1949 | 72 days |
| 1950 | 130 days |
| 1951 | 74 days |
| 1952 | 108 days |
| 1953 | 159 days |
| 1954 | 86 days |
| 1955 | 128 days |
| 1956 | 94 days |
| 1957 | 127 days |
| 1958 | 67 days |
| 1959 | 97 days |
| 1960 | 64 days |
| 1961 | 122 days |
| 1962 | 70 days |
| 1963 | 115 days |
| 1964 | 75 days |
| 1965 | 54 days |
| 1966 | 46 days |
| 1967 | 63 days |
| 1968 | 42 days |
| 1969 | 100 days |
| 1970 | 97 days |
| 1971 | 137 days |
| 1972 | 50 days |
| 1973 | 75 days |
| 1974 | 74 days |
| 1975 | 118 days |
| 1976 | 76 days |
| 1977 | 102 days |
| 1978 | 81 days |
| 1979 | 108 days |
| 1980 | 50 days |
| 1981 | 35 days |
| 1982 | 109 days |
| 1983 | 127 days |
| 1984 | 90 days |
| 1985 | 82 days |
| 1986 | 84 days |
| 1987 | 52 days |
| 1988 | 65 days |
| 1989 | 145 days |
| 1990 | 70 days |
| 1991 | 122 days |
| 1992 | 52 days |
| 1993 | 129 days |
| 1994 | 87 days |
| 1995 | 89 days |
| 1996 | 71 days |
| 1997 | 50 days |
| 1998 | 157 days |
| 1999 | 156 days |
| 2000 | 140 days |
| 2001 | 61 days |
| 2002 | 59 days |
| 2003 | 134 days |
| 2004 | 51 days |
| 2005 | 79 days |
| 2006 | 130 days |
| 2007 | 108 days |
| 2008 | 103 days |
| 2009 | 77 days |
| 2010 | 100 days |
| 2011 | 80 days |
| 2012 | 98 days |
| 2013 | 129 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
55 years with a frostAcross 55 years with a frost, the median last spring frost at San Bartolo falls on 26 February and the median first autumn frost on 21 November, which leaves a median of 265 days between them.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1982 to 2012) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 26 February | n/a | 22 February | n/a | -4.7 days per decade |
| First autumn frost | 21 November | n/a | 21 November | n/a | -0.8 days per decade |
| Growing days | 265 days | n/a | 265 days | n/a | +3.8 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
63 years, 1950 to 2012A day with at least 48.3 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 105.2 mm (4.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 48.3 mm (1.9 in) | |
| 5 years | 63.7 mm (2.5 in) | |
| 10 years | 73.9 mm (2.9 in) | |
| 25 years | 86.6 mm (3.4 in) | |
| 50 years | 96.0 mm (3.8 in) | |
| 100 years | 105.2 mm (4.1 in) | Longer than the 63 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, 63 years of values from 1950 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: 95.3 mm (3.8 in) in 1991; 91.4 mm (3.6 in) in 1956; 90.4 mm (3.6 in) in 1973.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of San Bartolo, at 1976. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1976 ran 0.7 C (1.3 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1976 | -0.7 | -1.3 | possible | 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).