San Bernardo Weather Records (MXN00014122)
Record envelope, standing records and threshold days for San Bernardo (MXN00014122), Mexico, with 71 years of record.
Key Facts for San Bernardo
- San Bernardo (MXN00014122) is a weather station in Mexico at 21.62 latitude and -102.38 longitude, 1,800 m (5,905 ft) above sea level.
- The station reports from 1942 to 2012, 71 years of record.
- 1,464 records set at San Bernardo still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- San Bernardo set a daily record low maximum temperature of 15.0 C (59.0 F) on 30 January 2012.
About the Station
- Location: Mexico, 21.62 latitude, -102.38 longitude.
- Elevation: 1,800 m (5,905 ft).
- Period of record: 1942 to 2012, 71 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) | -7.2 C (19.0 F) | n/a | n/a |
| Feb | 35.0 C (95.0 F) | -8.3 C (17.1 F) | n/a | n/a |
| Mar | 36.1 C (97.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Apr | 37.2 C (99.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| May | 39.4 C (102.9 F) | 1.1 C (34.0 F) | n/a | n/a |
| Jun | 39.4 C (102.9 F) | 3.9 C (39.0 F) | n/a | n/a |
| Jul | 35.0 C (95.0 F) | 5.0 C (41.0 F) | n/a | n/a |
| Aug | 38.9 C (102.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Oct | 35.0 C (95.0 F) | -1.1 C (30.0 F) | n/a | n/a |
| Nov | 36.1 C (97.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Dec | 35.0 C (95.0 F) | -6.1 C (21.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1942 | 11 |
| 1943 | 103 |
| 1944 | 74 |
| 1945 | 46 |
| 1946 | 33 |
| 1947 | 46 |
| 1948 | 88 |
| 1949 | 49 |
| 1950 | 59 |
| 1951 | 51 |
| 1952 | 40 |
| 1953 | 29 |
| 1954 | 33 |
| 1955 | 31 |
| 1956 | 40 |
| 1957 | 113 |
| 1958 | 32 |
| 1959 | 29 |
| 1960 | 24 |
| 1961 | 23 |
| 1962 | 2 |
| 1963 | 5 |
| 1964 | 7 |
| 1965 | 13 |
| 1966 | 11 |
| 1967 | 16 |
| 1968 | 15 |
| 1969 | 12 |
| 1970 | 19 |
| 1971 | 18 |
| 1972 | 12 |
| 1973 | 10 |
| 1974 | 4 |
| 1975 | 11 |
| 1976 | 11 |
| 1977 | 10 |
| 1978 | 3 |
| 1979 | 16 |
| 1980 | 8 |
| 1981 | 8 |
| 1982 | 9 |
| 1983 | 11 |
| 1984 | 3 |
| 1985 | 1 |
| 1986 | 9 |
| 1987 | 8 |
| 1988 | 16 |
| 1989 | 7 |
| 1990 | 14 |
| 1991 | 5 |
| 1992 | 5 |
| 1993 | 5 |
| 1994 | 7 |
| 1995 | 5 |
| 1996 | 3 |
| 1997 | 12 |
| 1998 | 30 |
| 1999 | 22 |
| 2000 | 8 |
| 2001 | 2 |
| 2002 | 10 |
| 2003 | 18 |
| 2004 | 7 |
| 2005 | 29 |
| 2006 | 13 |
| 2007 | 2 |
| 2008 | 6 |
| 2009 | 10 |
| 2010 | 21 |
| 2012 | 1 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1994-08-07 | Record daily precipitation | Record daily precipitation 95.8 mm (3.8 in) |
| 2005-06-02 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
Wettest Day of Each Month
Aug: 95.8 mm (3.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 45.5 mm (1.8 in) | 12 January 2002 |
| Feb | 41.7 mm (1.6 in) | 3 February 2010 |
| Mar | 37.8 mm (1.5 in) | 4 March 1968 |
| Apr | 30.5 mm (1.2 in) | 26 April 1947 |
| May | 58.2 mm (2.3 in) | 27 May 1989 |
| Jun | 71.9 mm (2.8 in) | 21 June 1970 |
| Jul | 79.0 mm (3.1 in) | 15 July 1949 |
| Aug | 95.8 mm (3.8 in) | 7 August 1994 |
| Sep | 64.3 mm (2.5 in) | 12 September 1970 |
| Oct | 61.5 mm (2.4 in) | 28 October 1973 |
| Nov | 34.8 mm (1.4 in) | 13 November 1992 |
| Dec | 28.4 mm (1.1 in) | 10 December 1953 |
Period of Record Coverage
1942 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1942 | 120 | 33% | No |
| 1943 | 283 | 78% | No |
| 1944 | 348 | 95% | Yes |
| 1945 | 323 | 88% | No |
| 1946 | 333 | 91% | Yes |
| 1947 | 313 | 86% | No |
| 1948 | 325 | 89% | No |
| 1949 | 305 | 84% | No |
| 1950 | 324 | 89% | No |
| 1951 | 361 | 99% | Yes |
| 1952 | 363 | 99% | Yes |
| 1953 | 362 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 362 | 99% | Yes |
| 1956 | 363 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 362 | 99% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 334 | 92% | Yes |
| 1963 | 241 | 66% | No |
| 1964 | 170 | 46% | No |
| 1965 | 333 | 91% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 359 | 98% | Yes |
| 1969 | 325 | 89% | No |
| 1970 | 357 | 98% | Yes |
| 1971 | 362 | 99% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 353 | 97% | Yes |
| 1974 | 361 | 99% | Yes |
| 1975 | 355 | 97% | Yes |
| 1976 | 359 | 98% | Yes |
| 1977 | 358 | 98% | Yes |
| 1978 | 361 | 99% | Yes |
| 1979 | 358 | 98% | Yes |
| 1980 | 362 | 99% | Yes |
| 1981 | 359 | 98% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 358 | 98% | Yes |
| 1984 | 360 | 98% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 355 | 97% | Yes |
| 1987 | 362 | 99% | Yes |
| 1988 | 333 | 91% | Yes |
| 1989 | 217 | 59% | No |
| 1990 | 344 | 94% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 324 | 89% | No |
| 1993 | 365 | 100% | Yes |
| 1994 | 337 | 92% | Yes |
| 1995 | 304 | 83% | No |
| 1996 | 326 | 89% | No |
| 1997 | 357 | 98% | Yes |
| 1998 | 360 | 99% | Yes |
| 1999 | 356 | 98% | Yes |
| 2000 | 305 | 83% | No |
| 2001 | 306 | 84% | No |
| 2002 | 365 | 100% | Yes |
| 2003 | 362 | 99% | Yes |
| 2004 | 335 | 92% | Yes |
| 2005 | 364 | 100% | Yes |
| 2006 | 362 | 99% | Yes |
| 2007 | 334 | 92% | Yes |
| 2008 | 332 | 91% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2012 | 31 | 8% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 January 2012 | San Bernardo, MX | daily low max | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 66 years | 31 of 100 (Routine) |
| 11 December 2010 | San Bernardo, MX | daily low min | -4.4 C (24.1 F) | 1.1 C (2.0 F) | 43 years | 21 of 100 (Routine) |
| 10 December 2010 | San Bernardo, MX | daily low min | -5.0 C (23.0 F) | 3.3 C (5.9 F) | 44 years | 29 of 100 (Routine) |
| 10 November 2010 | San Bernardo, MX | daily low min (Tie) | -0.6 C (30.9 F) | tie | 67 years | 6 of 100 (Routine) |
| 9 November 2010 | San Bernardo, MX | daily low min | -3.9 C (25.0 F) | 2.8 C (5.0 F) | 9 years | 16 of 100 (Routine) |
| 8 November 2010 | San Bernardo, MX | daily low min | -1.7 C (28.9 F) | 1.7 C (3.1 F) | 60 years | 29 of 100 (Routine) |
| 6 November 2010 | San Bernardo, MX | daily low min | 0.0 C (32.0 F) | 1.1 C (2.0 F) | 44 years | 22 of 100 (Routine) |
| 29 October 2010 | San Bernardo, MX | daily low min | 0.6 C (33.1 F) | 0.5 C (0.9 F) | 3 years | 7 of 100 (Routine) |
| 27 October 2010 | San Bernardo, MX | daily low min (Tie) | -0.6 C (30.9 F) | tie | 11 years | 2 of 100 (Routine) |
| 26 October 2010 | San Bernardo, MX | daily low min | -0.6 C (30.9 F) | 0.6 C (1.1 F) | 44 years | 20 of 100 (Routine) |
| 10 October 2010 | San Bernardo, MX | daily low min (Tie) | 5.0 C (41.0 F) | tie | 36 years | 4 of 100 (Routine) |
| 9 October 2010 | San Bernardo, MX | daily low min | 2.8 C (37.0 F) | 2.2 C (4.0 F) | 57 years | 29 of 100 (Routine) |
| 22 September 2010 | San Bernardo, MX | daily high min (Tie) | 15.6 C (60.1 F) | tie | 64 years | 6 of 100 (Routine) |
| 20 September 2010 | San Bernardo, MX | daily high min (Tie) | 15.6 C (60.1 F) | tie | 67 years | 6 of 100 (Routine) |
| 8 September 2010 | San Bernardo, MX | daily high min (Tie) | 15.6 C (60.1 F) | tie | 52 years | 5 of 100 (Routine) |
| 1 September 2010 | San Bernardo, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 64 years | 6 of 100 (Routine) |
| 30 August 2010 | San Bernardo, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 65 years | 6 of 100 (Routine) |
| 22 August 2010 | San Bernardo, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 64 years | 6 of 100 (Routine) |
| 20 August 2010 | San Bernardo, MX | daily high min (Tie) | 15.6 C (60.1 F) | tie | 3 years | 1 of 100 (Routine) |
| 19 August 2010 | San Bernardo, MX | daily high min | 16.7 C (62.1 F) | 0.6 C (1.1 F) | 20 years | 15 of 100 (Routine) |
Climate Trend
44 complete years, 1944 to 2010| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1944 | 14.4 C | -2.83 C |
| 1945 | 15.7 C | -1.59 C |
| 1946 | 17.0 C | -0.32 C |
| 1948 | 14.2 C | -3.12 C |
| 1949 | 14.3 C | -3.01 C |
| 1951 | 18.5 C | +1.18 C |
| 1952 | 18.4 C | +1.13 C |
| 1953 | 18.4 C | +1.13 C |
| 1954 | 19.0 C | +1.74 C |
| 1955 | 18.3 C | +1.04 C |
| 1956 | 18.1 C | +0.84 C |
| 1957 | 17.7 C | +0.42 C |
| 1958 | 17.8 C | +0.56 C |
| 1959 | 17.2 C | -0.12 C |
| 1960 | 17.9 C | +0.61 C |
| 1961 | 17.3 C | -0.01 C |
| 1966 | 17.1 C | -0.13 C |
| 1967 | 17.1 C | -0.20 C |
| 1968 | 16.7 C | -0.59 C |
| 1970 | 15.7 C | -1.61 C |
| 1971 | 16.6 C | -0.66 C |
| 1972 | 16.9 C | -0.34 C |
| 1973 | 17.5 C | +0.20 C |
| 1974 | 17.4 C | +0.12 C |
| 1975 | 17.2 C | -0.07 C |
| 1976 | 17.1 C | -0.18 C |
| 1977 | 17.7 C | +0.43 C |
| 1978 | 17.6 C | +0.34 C |
| 1979 | 17.4 C | +0.17 C |
| 1980 | 17.6 C | +0.29 C |
| 1981 | 17.7 C | +0.40 C |
| 1982 | 17.9 C | +0.64 C |
| 1983 | 16.8 C | -0.47 C |
| 1984 | 16.9 C | -0.39 C |
| 1985 | 17.5 C | +0.22 C |
| 1986 | 17.5 C | +0.23 C |
| 1987 | 17.2 C | -0.09 C |
| 1999 | 17.8 C | +0.50 C |
| 2002 | 18.3 C | +1.01 C |
| 2003 | 18.0 C | +0.72 C |
| 2005 | 17.8 C | +0.52 C |
| 2006 | 18.0 C | +0.72 C |
| 2009 | 17.8 C | +0.57 C |
| 2010 | 17.1 C | -0.17 C |
The annual mean temperature here has risen by 0.18 C (0.01 to 0.34) per decade over 1944 to 2010. In Fahrenheit: 0.32 F (0.02 to 0.61) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.18 C (0.01 to 0.34) per decade | 0.32 F (0.02 to 0.61) per decade | 1944 to 2010 | 44 | Rise |
| Mean daily maximum | 0.38 C (0.02 to 0.75) per decade | 0.69 F (0.03 to 1.35) per decade | 1944 to 2010 | 44 | Rise |
| Mean daily minimum | -0.03 C (-0.14 to 0.07) per decade | -0.1 F (-0.2 to 0.1) per decade | 1944 to 2010 | 44 | Not clearly different from zero |
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
1942 to 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 39.4 C (102.9 F) | 2005 | 35.6 C (96.1 F) | 70 |
| Coldest night (TNn) | -8.3 C (17.1 F) | 1960 | -4.4 C (24.1 F) | 70 |
| Wettest day (Rx1day) | 95.8 mm (3.8 in) | 1994 | 45.1 mm (1.8 in) | 70 |
| Wettest five days (Rx5day) | 168.4 mm (6.6 in) | 1970 | 81.8 mm (3.2 in) | 70 |
| Longest dry spell (CDD) | 170 days | 1969 | 88 days | 70 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1942 | 35.0 C (95.0 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 33.9 C (93.0 F) |
| 1945 | 35.0 C (95.0 F) |
| 1946 | 36.7 C (98.1 F) |
| 1947 | 35.0 C (95.0 F) |
| 1948 | 32.8 C (91.0 F) |
| 1949 | 32.8 C (91.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 35.0 C (95.0 F) |
| 1952 | 36.7 C (98.1 F) |
| 1953 | 38.3 C (100.9 F) |
| 1954 | 37.2 C (99.0 F) |
| 1955 | 35.6 C (96.1 F) |
| 1956 | 36.1 C (97.0 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 33.9 C (93.0 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 31.7 C (89.1 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 35.6 C (96.1 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 34.4 C (93.9 F) |
| 1969 | 35.0 C (95.0 F) |
| 1970 | 35.0 C (95.0 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 33.9 C (93.0 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 33.9 C (93.0 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 34.4 C (93.9 F) |
| 1980 | 35.6 C (96.1 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 37.2 C (99.0 F) |
| 1984 | 33.3 C (91.9 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 33.3 C (91.9 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 30.0 C (86.0 F) |
| 1990 | 37.2 C (99.0 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 34.4 C (93.9 F) |
| 1993 | 36.1 C (97.0 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 36.1 C (97.0 F) |
| 1996 | 36.1 C (97.0 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 38.3 C (100.9 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 35.6 C (96.1 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 37.2 C (99.0 F) |
| 2003 | 38.9 C (102.0 F) |
| 2004 | 36.1 C (97.0 F) |
| 2005 | 39.4 C (102.9 F) |
| 2006 | 38.3 C (100.9 F) |
| 2007 | 39.4 C (102.9 F) |
| 2008 | 36.1 C (97.0 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 36.7 C (98.1 F) |
| 2012 | 28.3 C (82.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1942 | -6.1 C (21.0 F) |
| 1943 | -0.6 C (30.9 F) |
| 1944 | -3.3 C (26.1 F) |
| 1945 | -2.2 C (28.0 F) |
| 1946 | 0.0 C (32.0 F) |
| 1947 | 0.0 C (32.0 F) |
| 1948 | 0.0 C (32.0 F) |
| 1949 | -2.8 C (27.0 F) |
| 1950 | 0.0 C (32.0 F) |
| 1951 | -5.0 C (23.0 F) |
| 1952 | -6.1 C (21.0 F) |
| 1953 | -3.3 C (26.1 F) |
| 1954 | -4.4 C (24.1 F) |
| 1955 | -6.1 C (21.0 F) |
| 1956 | -6.7 C (19.9 F) |
| 1957 | -4.4 C (24.1 F) |
| 1958 | -2.2 C (28.0 F) |
| 1959 | -4.4 C (24.1 F) |
| 1960 | -8.3 C (17.1 F) |
| 1961 | -4.4 C (24.1 F) |
| 1962 | -5.0 C (23.0 F) |
| 1963 | -5.0 C (23.0 F) |
| 1964 | -4.4 C (24.1 F) |
| 1965 | -5.0 C (23.0 F) |
| 1966 | -6.1 C (21.0 F) |
| 1967 | -7.2 C (19.0 F) |
| 1968 | -5.6 C (21.9 F) |
| 1969 | -5.0 C (23.0 F) |
| 1970 | -3.9 C (25.0 F) |
| 1971 | -5.0 C (23.0 F) |
| 1972 | -4.4 C (24.1 F) |
| 1973 | -5.0 C (23.0 F) |
| 1974 | -3.3 C (26.1 F) |
| 1975 | -5.6 C (21.9 F) |
| 1976 | -5.0 C (23.0 F) |
| 1977 | -2.8 C (27.0 F) |
| 1978 | -5.6 C (21.9 F) |
| 1979 | -3.3 C (26.1 F) |
| 1980 | -2.8 C (27.0 F) |
| 1981 | -3.9 C (25.0 F) |
| 1982 | -3.9 C (25.0 F) |
| 1983 | -3.9 C (25.0 F) |
| 1984 | -1.7 C (28.9 F) |
| 1985 | -5.0 C (23.0 F) |
| 1986 | -5.0 C (23.0 F) |
| 1987 | -5.0 C (23.0 F) |
| 1988 | -7.2 C (19.0 F) |
| 1989 | -2.8 C (27.0 F) |
| 1990 | -2.8 C (27.0 F) |
| 1991 | 0.0 C (32.0 F) |
| 1992 | 0.0 C (32.0 F) |
| 1993 | 0.0 C (32.0 F) |
| 1994 | 0.0 C (32.0 F) |
| 1995 | -2.8 C (27.0 F) |
| 1996 | -2.8 C (27.0 F) |
| 1997 | -7.2 C (19.0 F) |
| 1998 | -5.0 C (23.0 F) |
| 1999 | -6.7 C (19.9 F) |
| 2000 | -5.0 C (23.0 F) |
| 2001 | -2.8 C (27.0 F) |
| 2002 | -5.0 C (23.0 F) |
| 2003 | -5.0 C (23.0 F) |
| 2004 | -5.0 C (23.0 F) |
| 2005 | -2.2 C (28.0 F) |
| 2006 | -5.6 C (21.9 F) |
| 2007 | -1.7 C (28.9 F) |
| 2008 | -3.3 C (26.1 F) |
| 2009 | -2.8 C (27.0 F) |
| 2010 | -5.0 C (23.0 F) |
| 2012 | -2.2 C (28.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1942 | 38.4 mm (1.5 in) |
| 1943 | 63.0 mm (2.5 in) |
| 1944 | 29.0 mm (1.1 in) |
| 1945 | 48.8 mm (1.9 in) |
| 1946 | 35.1 mm (1.4 in) |
| 1947 | 32.3 mm (1.3 in) |
| 1948 | 36.6 mm (1.4 in) |
| 1949 | 79.0 mm (3.1 in) |
| 1950 | 31.2 mm (1.2 in) |
| 1951 | 37.3 mm (1.5 in) |
| 1952 | 37.8 mm (1.5 in) |
| 1953 | 37.3 mm (1.5 in) |
| 1954 | 49.8 mm (2.0 in) |
| 1955 | 55.4 mm (2.2 in) |
| 1956 | 39.9 mm (1.6 in) |
| 1957 | 47.8 mm (1.9 in) |
| 1958 | 41.9 mm (1.6 in) |
| 1959 | 32.8 mm (1.3 in) |
| 1960 | 49.8 mm (2.0 in) |
| 1961 | 46.0 mm (1.8 in) |
| 1962 | 45.0 mm (1.8 in) |
| 1963 | 47.0 mm (1.9 in) |
| 1964 | 21.8 mm (0.9 in) |
| 1965 | 19.3 mm (0.8 in) |
| 1966 | 33.8 mm (1.3 in) |
| 1967 | 51.1 mm (2.0 in) |
| 1968 | 41.1 mm (1.6 in) |
| 1969 | 31.0 mm (1.2 in) |
| 1970 | 71.9 mm (2.8 in) |
| 1971 | 64.0 mm (2.5 in) |
| 1972 | 54.9 mm (2.2 in) |
| 1973 | 61.5 mm (2.4 in) |
| 1974 | 31.5 mm (1.2 in) |
| 1975 | 34.8 mm (1.4 in) |
| 1976 | 52.1 mm (2.1 in) |
| 1977 | 53.1 mm (2.1 in) |
| 1978 | 39.4 mm (1.6 in) |
| 1979 | 49.0 mm (1.9 in) |
| 1980 | 34.3 mm (1.4 in) |
| 1981 | 62.2 mm (2.4 in) |
| 1982 | 40.1 mm (1.6 in) |
| 1983 | 44.2 mm (1.7 in) |
| 1984 | 25.1 mm (1.0 in) |
| 1985 | 71.9 mm (2.8 in) |
| 1986 | 53.3 mm (2.1 in) |
| 1987 | 47.8 mm (1.9 in) |
| 1988 | 27.2 mm (1.1 in) |
| 1989 | 58.2 mm (2.3 in) |
| 1990 | 59.4 mm (2.3 in) |
| 1991 | 53.6 mm (2.1 in) |
| 1992 | 57.9 mm (2.3 in) |
| 1993 | 26.2 mm (1.0 in) |
| 1994 | 95.8 mm (3.8 in) |
| 1995 | 49.3 mm (1.9 in) |
| 1996 | 34.8 mm (1.4 in) |
| 1997 | 28.4 mm (1.1 in) |
| 1998 | 32.3 mm (1.3 in) |
| 1999 | 32.0 mm (1.3 in) |
| 2000 | 43.4 mm (1.7 in) |
| 2001 | 46.0 mm (1.8 in) |
| 2002 | 45.5 mm (1.8 in) |
| 2003 | 50.3 mm (2.0 in) |
| 2004 | 45.2 mm (1.8 in) |
| 2005 | 31.2 mm (1.2 in) |
| 2006 | 64.3 mm (2.5 in) |
| 2007 | 44.7 mm (1.8 in) |
| 2008 | 71.6 mm (2.8 in) |
| 2009 | 52.3 mm (2.1 in) |
| 2010 | 66.0 mm (2.6 in) |
| 2012 | 2.8 mm (0.11 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1942 | 74.2 mm (2.9 in) |
| 1943 | 96.1 mm (3.8 in) |
| 1944 | 75.7 mm (3.0 in) |
| 1945 | 95.5 mm (3.8 in) |
| 1946 | 61.3 mm (2.4 in) |
| 1947 | 70.5 mm (2.8 in) |
| 1948 | 78.5 mm (3.1 in) |
| 1949 | 103.7 mm (4.1 in) |
| 1950 | 98.1 mm (3.9 in) |
| 1951 | 58.7 mm (2.3 in) |
| 1952 | 85.7 mm (3.4 in) |
| 1953 | 75.7 mm (3.0 in) |
| 1954 | 66.2 mm (2.6 in) |
| 1955 | 144.0 mm (5.7 in) |
| 1956 | 85.1 mm (3.4 in) |
| 1957 | 72.3 mm (2.8 in) |
| 1958 | 66.1 mm (2.6 in) |
| 1959 | 72.4 mm (2.9 in) |
| 1960 | 82.3 mm (3.2 in) |
| 1961 | 47.4 mm (1.9 in) |
| 1962 | 107.2 mm (4.2 in) |
| 1963 | 72.3 mm (2.8 in) |
| 1964 | 68.4 mm (2.7 in) |
| 1965 | 41.1 mm (1.6 in) |
| 1966 | 97.1 mm (3.8 in) |
| 1967 | 133.4 mm (5.3 in) |
| 1968 | 77.2 mm (3.0 in) |
| 1969 | 49.2 mm (1.9 in) |
| 1970 | 168.4 mm (6.6 in) |
| 1971 | 114.3 mm (4.5 in) |
| 1972 | 104.3 mm (4.1 in) |
| 1973 | 148.9 mm (5.9 in) |
| 1974 | 92.5 mm (3.6 in) |
| 1975 | 116.6 mm (4.6 in) |
| 1976 | 101.1 mm (4.0 in) |
| 1977 | 105.7 mm (4.2 in) |
| 1978 | 82.6 mm (3.3 in) |
| 1979 | 81.3 mm (3.2 in) |
| 1980 | 57.1 mm (2.2 in) |
| 1981 | 96.0 mm (3.8 in) |
| 1982 | 62.4 mm (2.5 in) |
| 1983 | 106.5 mm (4.2 in) |
| 1984 | 69.8 mm (2.7 in) |
| 1985 | 91.4 mm (3.6 in) |
| 1986 | 130.1 mm (5.1 in) |
| 1987 | 92.2 mm (3.6 in) |
| 1988 | 64.5 mm (2.5 in) |
| 1989 | 62.0 mm (2.4 in) |
| 1990 | 164.0 mm (6.5 in) |
| 1991 | 114.5 mm (4.5 in) |
| 1992 | 104.4 mm (4.1 in) |
| 1993 | 52.6 mm (2.1 in) |
| 1994 | 112.1 mm (4.4 in) |
| 1995 | 73.0 mm (2.9 in) |
| 1996 | 73.9 mm (2.9 in) |
| 1997 | 49.3 mm (1.9 in) |
| 1998 | 67.6 mm (2.7 in) |
| 1999 | 43.2 mm (1.7 in) |
| 2000 | 63.5 mm (2.5 in) |
| 2001 | 79.3 mm (3.1 in) |
| 2002 | 72.4 mm (2.9 in) |
| 2003 | 124.5 mm (4.9 in) |
| 2004 | 103.9 mm (4.1 in) |
| 2005 | 50.4 mm (2.0 in) |
| 2006 | 101.4 mm (4.0 in) |
| 2007 | 89.7 mm (3.5 in) |
| 2008 | 161.3 mm (6.4 in) |
| 2009 | 76.2 mm (3.0 in) |
| 2010 | 125.5 mm (4.9 in) |
| 2012 | 3.8 mm (0.15 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1942 | 20 days |
| 1943 | 148 days |
| 1944 | 52 days |
| 1945 | 85 days |
| 1946 | 52 days |
| 1947 | 104 days |
| 1948 | 36 days |
| 1949 | 122 days |
| 1950 | 111 days |
| 1951 | 75 days |
| 1952 | 95 days |
| 1953 | 78 days |
| 1954 | 76 days |
| 1955 | 128 days |
| 1956 | 94 days |
| 1957 | 156 days |
| 1958 | 73 days |
| 1959 | 101 days |
| 1960 | 97 days |
| 1961 | 124 days |
| 1962 | 103 days |
| 1963 | 67 days |
| 1964 | 52 days |
| 1965 | 51 days |
| 1966 | 66 days |
| 1967 | 45 days |
| 1968 | 39 days |
| 1969 | 170 days |
| 1970 | 97 days |
| 1971 | 133 days |
| 1972 | 43 days |
| 1973 | 75 days |
| 1974 | 64 days |
| 1975 | 114 days |
| 1976 | 90 days |
| 1977 | 81 days |
| 1978 | 76 days |
| 1979 | 134 days |
| 1980 | 67 days |
| 1981 | 49 days |
| 1982 | 54 days |
| 1983 | 127 days |
| 1984 | 92 days |
| 1985 | 83 days |
| 1986 | 111 days |
| 1987 | 53 days |
| 1988 | 81 days |
| 1989 | 91 days |
| 1990 | 76 days |
| 1991 | 123 days |
| 1992 | 74 days |
| 1993 | 104 days |
| 1994 | 136 days |
| 1995 | 102 days |
| 1996 | 135 days |
| 1997 | 50 days |
| 1998 | 156 days |
| 1999 | 146 days |
| 2000 | 91 days |
| 2001 | 59 days |
| 2002 | 58 days |
| 2003 | 137 days |
| 2004 | 42 days |
| 2005 | 78 days |
| 2006 | 102 days |
| 2007 | 108 days |
| 2008 | 80 days |
| 2009 | 111 days |
| 2010 | 99 days |
| 2012 | 28 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 San Bernardo falls on 1 March and the median first autumn frost on 23 November, which leaves a median of 262 days between them.
Fitted over all years, the growing season changes by -2.7 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1956 to 2010) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 March | n/a | 3 March | n/a | +1.3 days per decade |
| First autumn frost | 23 November | n/a | 23 November | n/a | -1.3 days per decade |
| Growing days | 262 days | n/a | 258 days | n/a | -2.7 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
66 years, 1943 to 2010A day with at least 44.4 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 89.0 mm (3.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 44.4 mm (1.7 in) | |
| 5 years | 57.6 mm (2.3 in) | |
| 10 years | 65.8 mm (2.6 in) | |
| 25 years | 75.6 mm (3.0 in) | |
| 50 years | 82.5 mm (3.2 in) | |
| 100 years | 89.0 mm (3.5 in) | Longer than the 66 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, 66 years of values from 1943 to 2010.
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: 95.8 mm (3.8 in) in 1994; 79.0 mm (3.1 in) in 1949; 71.9 mm (2.8 in) in 1970.
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).