Colotlan (Dge) Weather Records (MXN00014175)
Record envelope, standing records and threshold days for Colotlan (Dge) (MXN00014175), Mexico, with 49 years of record.
Key Facts for Colotlan (Dge)
- Colotlan (Dge) (MXN00014175) is a weather station in Mexico at 22.10 latitude and -103.25 longitude, 1,660 m (5,446 ft) above sea level.
- The station reports from 1950 to 1998, 49 years of record.
- 1,464 records set at Colotlan (Dge) still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Colotlan (Dge) set a daily record precipitation of 1.3 mm (0.05 in) on 12 November 1998.
About the Station
- Location: Mexico, 22.10 latitude, -103.25 longitude.
- Elevation: 1,660 m (5,446 ft).
- Period of record: 1950 to 1998, 49 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 | 33.9 C (93.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Feb | 41.7 C (107.1 F) | -5.0 C (23.0 F) | n/a | n/a |
| Mar | 40.0 C (104.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| Apr | 41.7 C (107.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| May | 43.9 C (111.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jun | 45.6 C (114.1 F) | 2.8 C (37.0 F) | n/a | n/a |
| Jul | 41.7 C (107.1 F) | 2.8 C (37.0 F) | n/a | n/a |
| Aug | 42.8 C (109.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Sep | 41.7 C (107.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Oct | 40.6 C (105.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Nov | 35.6 C (96.1 F) | -5.6 C (21.9 F) | n/a | n/a |
| Dec | 35.0 C (95.0 F) | -2.8 C (27.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1950 | 72 |
| 1951 | 92 |
| 1952 | 65 |
| 1953 | 78 |
| 1954 | 96 |
| 1955 | 105 |
| 1956 | 118 |
| 1957 | 42 |
| 1958 | 39 |
| 1959 | 22 |
| 1961 | 20 |
| 1962 | 14 |
| 1963 | 30 |
| 1964 | 15 |
| 1965 | 18 |
| 1966 | 30 |
| 1967 | 24 |
| 1968 | 20 |
| 1969 | 11 |
| 1970 | 2 |
| 1971 | 10 |
| 1972 | 9 |
| 1973 | 20 |
| 1974 | 13 |
| 1975 | 8 |
| 1976 | 22 |
| 1977 | 4 |
| 1978 | 10 |
| 1979 | 11 |
| 1980 | 10 |
| 1981 | 7 |
| 1982 | 5 |
| 1983 | 18 |
| 1984 | 17 |
| 1985 | 17 |
| 1986 | 14 |
| 1987 | 26 |
| 1988 | 8 |
| 1989 | 74 |
| 1990 | 29 |
| 1991 | 60 |
| 1992 | 27 |
| 1993 | 21 |
| 1994 | 9 |
| 1995 | 29 |
| 1996 | 16 |
| 1997 | 51 |
| 1998 | 6 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 1987-06-10 | Record high maximum temperature | Record high maximum temperature 45.6 C (114.1 F) |
Wettest Day of Each Month
Jul: 95.0 mm (3.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 39.9 mm (1.6 in) | 9 January 1992 |
| Feb | 69.9 mm (2.8 in) | 12 February 1969 |
| Mar | 57.4 mm (2.3 in) | 6 March 1958 |
| Apr | 58.4 mm (2.3 in) | 13 April 1959 |
| May | 31.0 mm (1.2 in) | 25 May 1971 |
| Jun | 78.0 mm (3.1 in) | 14 June 1958 |
| Jul | 95.0 mm (3.7 in) | 13 July 1975 |
| Aug | 78.7 mm (3.1 in) | 19 August 1962 |
| Sep | 70.9 mm (2.8 in) | 14 September 1961 |
| Oct | 55.4 mm (2.2 in) | 6 October 1962 |
| Nov | 50.8 mm (2.0 in) | 2 November 1958 |
| Dec | 34.8 mm (1.4 in) | 3 December 1979 |
Period of Record Coverage
1950 to 1998| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1950 | 359 | 98% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 330 | 90% | Yes |
| 1953 | 357 | 98% | Yes |
| 1954 | 327 | 90% | No |
| 1955 | 359 | 98% | Yes |
| 1956 | 361 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1961 | 362 | 99% | Yes |
| 1962 | 361 | 99% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 336 | 92% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 362 | 99% | Yes |
| 1968 | 335 | 92% | Yes |
| 1969 | 362 | 99% | Yes |
| 1970 | 147 | 40% | No |
| 1971 | 353 | 97% | Yes |
| 1972 | 360 | 98% | Yes |
| 1973 | 350 | 96% | Yes |
| 1974 | 361 | 99% | Yes |
| 1975 | 363 | 99% | Yes |
| 1976 | 355 | 97% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 364 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 361 | 99% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 358 | 98% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 353 | 97% | Yes |
| 1990 | 361 | 99% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 359 | 98% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 305 | 84% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 November 1998 | Colotlan (Dge), MX | daily rain | 1.3 mm (0.05 in) | 1.3 mm (0.05 in) | 48 years | 19 of 100 (Routine) |
| 9 September 1998 | Colotlan (Dge), MX | daily low max (Tie) | 20.6 C (69.1 F) | tie | 8 years | 1 of 100 (Routine) |
| 8 September 1998 | Colotlan (Dge), MX | daily low max | 22.8 C (73.0 F) | 0.5 C (0.9 F) | 33 years | 15 of 100 (Routine) |
| 7 September 1998 | Colotlan (Dge), MX | daily low max | 20.6 C (69.1 F) | 2.2 C (4.0 F) | 36 years | 20 of 100 (Routine) |
| 6 September 1998 | Colotlan (Dge), MX | daily low max | 21.7 C (71.1 F) | 1.1 C (2.0 F) | 12 years | 10 of 100 (Routine) |
| 1 September 1998 | Colotlan (Dge), MX | daily low min | 3.9 C (39.0 F) | 3.9 C (7.0 F) | 8 years | 18 of 100 (Routine) |
| 11 August 1998 | Colotlan (Dge), MX | daily low max | 22.8 C (73.0 F) | 1.1 C (2.0 F) | 19 years | 12 of 100 (Routine) |
| 11 August 1998 | Colotlan (Dge), MX | daily low min | 5.6 C (42.1 F) | 1.1 C (2.0 F) | 8 years | 9 of 100 (Routine) |
| 31 July 1998 | Colotlan (Dge), MX | daily low min (Tie) | 7.8 C (46.0 F) | tie | 8 years | 1 of 100 (Routine) |
| 23 July 1998 | Colotlan (Dge), MX | daily low min (Tie) | 5.6 C (42.1 F) | tie | 8 years | 1 of 100 (Routine) |
| 8 July 1998 | Colotlan (Dge), MX | daily low min (Tie) | 5.6 C (42.1 F) | tie | 8 years | 1 of 100 (Routine) |
| 31 December 1997 | Colotlan (Dge), MX | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 31 years | 16 of 100 (Routine) |
| 28 December 1997 | Colotlan (Dge), MX | daily high max (Tie) | 30.0 C (86.0 F) | tie | 46 years | 4 of 100 (Routine) |
| 27 December 1997 | Colotlan (Dge), MX | daily high max | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 20 years | 11 of 100 (Routine) |
| 11 November 1997 | Colotlan (Dge), MX | daily rain | 21.8 mm (0.9 in) | 21.8 mm (0.9 in) | 47 years | 20 of 100 (Routine) |
| 1 October 1997 | Colotlan (Dge), MX | monthly low min (Tie) | 1.7 C (35.1 F) | tie | 7 years | 4 of 100 (Routine) |
| 30 September 1997 | Colotlan (Dge), MX | monthly low min (Tie) | 1.7 C (35.1 F) | tie | 0 years | 3 of 100 (Routine) |
| 29 September 1997 | Colotlan (Dge), MX | daily low min | 2.8 C (37.0 F) | 2.8 C (5.0 F) | 18 years | 18 of 100 (Routine) |
| 29 September 1997 | Colotlan (Dge), MX | daily high max | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 43 years | 17 of 100 (Routine) |
| 28 September 1997 | Colotlan (Dge), MX | daily low min | 2.8 C (37.0 F) | 2.2 C (4.0 F) | 18 years | 16 of 100 (Routine) |
Climate Trend
41 complete years, 1950 to 1996| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1950 | 21.9 C | +2.89 C |
| 1951 | 21.6 C | +2.61 C |
| 1953 | 21.8 C | +2.79 C |
| 1955 | 21.3 C | +2.35 C |
| 1956 | 20.1 C | +1.14 C |
| 1957 | 20.3 C | +1.31 C |
| 1958 | 19.8 C | +0.77 C |
| 1959 | 19.6 C | +0.61 C |
| 1961 | 19.6 C | +0.57 C |
| 1962 | 19.9 C | +0.89 C |
| 1963 | 19.8 C | +0.83 C |
| 1965 | 19.8 C | +0.83 C |
| 1966 | 19.2 C | +0.20 C |
| 1967 | 19.3 C | +0.26 C |
| 1969 | 19.3 C | +0.33 C |
| 1971 | 18.9 C | -0.13 C |
| 1972 | 19.4 C | +0.44 C |
| 1973 | 18.6 C | -0.41 C |
| 1974 | 18.8 C | -0.21 C |
| 1975 | 18.4 C | -0.60 C |
| 1976 | 18.0 C | -1.00 C |
| 1977 | 17.7 C | -1.28 C |
| 1978 | 17.8 C | -1.22 C |
| 1979 | 18.1 C | -0.85 C |
| 1980 | 18.6 C | -0.42 C |
| 1981 | 18.4 C | -0.58 C |
| 1982 | 18.6 C | -0.44 C |
| 1983 | 18.5 C | -0.48 C |
| 1984 | 18.5 C | -0.51 C |
| 1985 | 18.2 C | -0.81 C |
| 1986 | 18.5 C | -0.52 C |
| 1987 | 18.7 C | -0.34 C |
| 1988 | 17.5 C | -1.47 C |
| 1989 | 16.4 C | -2.58 C |
| 1990 | 16.6 C | -2.43 C |
| 1991 | 16.1 C | -2.91 C |
| 1992 | 16.1 C | -2.87 C |
| 1993 | 19.4 C | +0.42 C |
| 1994 | 20.0 C | +0.96 C |
| 1995 | 20.0 C | +0.97 C |
| 1996 | 19.7 C | +0.69 C |
The annual mean temperature here has fallen by 0.7 C (0.5 to 0.9) per decade over 1950 to 1996. In Fahrenheit: 1.3 F (0.9 to 1.7) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.7 C (-0.9 to -0.5) per decade | -1.3 F (-1.7 to -0.9) per decade | 1950 to 1996 | 41 | Fall |
| Mean daily maximum | -0.5 C (-0.9 to -0.1) per decade | -0.9 F (-1.6 to -0.2) per decade | 1950 to 1996 | 41 | Fall |
| Mean daily minimum | -0.9 C (-1.2 to -0.7) per decade | -1.6 F (-2.1 to -1.2) per decade | 1950 to 1996 | 41 | 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
1950 to 1998| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 1987 | 37.0 C (98.5 F) | 48 |
| Coldest night (TNn) | -5.6 C (21.9 F) | 1974 | 0.0 C (32.0 F) | 48 |
| Wettest day (Rx1day) | 95.0 mm (3.7 in) | 1975 | 40.9 mm (1.6 in) | 48 |
| Wettest five days (Rx5day) | 178.5 mm (7.0 in) | 1975 | 82.9 mm (3.3 in) | 48 |
| Longest dry spell (CDD) | 163 days | 1995 | 80 days | 48 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1950 | 42.8 C (109.0 F) |
| 1951 | 41.7 C (107.1 F) |
| 1952 | 43.9 C (111.0 F) |
| 1953 | 43.9 C (111.0 F) |
| 1954 | 41.7 C (107.1 F) |
| 1955 | 42.8 C (109.0 F) |
| 1956 | 39.4 C (102.9 F) |
| 1957 | 38.3 C (100.9 F) |
| 1958 | 36.7 C (98.1 F) |
| 1959 | 36.7 C (98.1 F) |
| 1961 | 38.9 C (102.0 F) |
| 1962 | 38.9 C (102.0 F) |
| 1963 | 37.8 C (100.0 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 38.9 C (102.0 F) |
| 1968 | 38.9 C (102.0 F) |
| 1969 | 38.9 C (102.0 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 37.8 C (100.0 F) |
| 1973 | 37.8 C (100.0 F) |
| 1974 | 36.7 C (98.1 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 33.9 C (93.0 F) |
| 1977 | 34.4 C (93.9 F) |
| 1978 | 35.6 C (96.1 F) |
| 1979 | 35.6 C (96.1 F) |
| 1980 | 35.6 C (96.1 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 37.8 C (100.0 F) |
| 1983 | 35.6 C (96.1 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 45.6 C (114.1 F) |
| 1988 | 36.7 C (98.1 F) |
| 1989 | 36.7 C (98.1 F) |
| 1990 | 35.6 C (96.1 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 36.7 C (98.1 F) |
| 1993 | 41.1 C (106.0 F) |
| 1994 | 39.4 C (102.9 F) |
| 1995 | 40.0 C (104.0 F) |
| 1996 | 38.9 C (102.0 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 30.6 C (87.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1950 | -1.7 C (28.9 F) |
| 1951 | 0.0 C (32.0 F) |
| 1952 | -1.1 C (30.0 F) |
| 1953 | 0.0 C (32.0 F) |
| 1954 | 0.6 C (33.1 F) |
| 1955 | -3.3 C (26.1 F) |
| 1956 | 0.6 C (33.1 F) |
| 1957 | -0.6 C (30.9 F) |
| 1958 | -4.4 C (24.1 F) |
| 1959 | 0.0 C (32.0 F) |
| 1961 | 0.6 C (33.1 F) |
| 1962 | -3.3 C (26.1 F) |
| 1963 | -1.1 C (30.0 F) |
| 1964 | 0.0 C (32.0 F) |
| 1965 | 1.7 C (35.1 F) |
| 1966 | 0.6 C (33.1 F) |
| 1967 | -4.4 C (24.1 F) |
| 1968 | 0.0 C (32.0 F) |
| 1969 | -2.2 C (28.0 F) |
| 1970 | 0.6 C (33.1 F) |
| 1971 | -5.0 C (23.0 F) |
| 1972 | 0.6 C (33.1 F) |
| 1973 | -2.8 C (27.0 F) |
| 1974 | -5.6 C (21.9 F) |
| 1975 | -2.8 C (27.0 F) |
| 1976 | -3.3 C (26.1 F) |
| 1977 | 1.7 C (35.1 F) |
| 1978 | 0.6 C (33.1 F) |
| 1979 | 2.8 C (37.0 F) |
| 1980 | 2.8 C (37.0 F) |
| 1981 | 1.7 C (35.1 F) |
| 1982 | 1.7 C (35.1 F) |
| 1983 | -1.1 C (30.0 F) |
| 1984 | 0.6 C (33.1 F) |
| 1985 | -2.2 C (28.0 F) |
| 1986 | 1.7 C (35.1 F) |
| 1987 | 0.6 C (33.1 F) |
| 1988 | 0.0 C (32.0 F) |
| 1989 | 1.7 C (35.1 F) |
| 1990 | 0.6 C (33.1 F) |
| 1991 | 1.7 C (35.1 F) |
| 1992 | 0.0 C (32.0 F) |
| 1993 | -3.9 C (25.0 F) |
| 1994 | -2.2 C (28.0 F) |
| 1995 | -3.9 C (25.0 F) |
| 1996 | -2.2 C (28.0 F) |
| 1997 | 0.6 C (33.1 F) |
| 1998 | 0.6 C (33.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1950 | 40.9 mm (1.6 in) |
| 1951 | 41.4 mm (1.6 in) |
| 1952 | 43.4 mm (1.7 in) |
| 1953 | 39.9 mm (1.6 in) |
| 1954 | 43.9 mm (1.7 in) |
| 1955 | 51.8 mm (2.0 in) |
| 1956 | 60.2 mm (2.4 in) |
| 1957 | 42.4 mm (1.7 in) |
| 1958 | 78.0 mm (3.1 in) |
| 1959 | 58.4 mm (2.3 in) |
| 1961 | 70.9 mm (2.8 in) |
| 1962 | 78.7 mm (3.1 in) |
| 1963 | 37.6 mm (1.5 in) |
| 1964 | 41.4 mm (1.6 in) |
| 1965 | 57.4 mm (2.3 in) |
| 1966 | 40.9 mm (1.6 in) |
| 1967 | 53.8 mm (2.1 in) |
| 1968 | 36.1 mm (1.4 in) |
| 1969 | 69.9 mm (2.8 in) |
| 1970 | 22.9 mm (0.9 in) |
| 1971 | 59.9 mm (2.4 in) |
| 1972 | 22.9 mm (0.9 in) |
| 1973 | 58.9 mm (2.3 in) |
| 1974 | 24.9 mm (1.0 in) |
| 1975 | 95.0 mm (3.7 in) |
| 1976 | 31.0 mm (1.2 in) |
| 1977 | 32.8 mm (1.3 in) |
| 1978 | 68.3 mm (2.7 in) |
| 1979 | 34.8 mm (1.4 in) |
| 1980 | 37.8 mm (1.5 in) |
| 1981 | 33.8 mm (1.3 in) |
| 1982 | 64.8 mm (2.6 in) |
| 1983 | 24.9 mm (1.0 in) |
| 1984 | 38.4 mm (1.5 in) |
| 1985 | 35.8 mm (1.4 in) |
| 1986 | 30.5 mm (1.2 in) |
| 1987 | 41.9 mm (1.6 in) |
| 1988 | 36.3 mm (1.4 in) |
| 1989 | 24.9 mm (1.0 in) |
| 1990 | 33.8 mm (1.3 in) |
| 1991 | 36.8 mm (1.4 in) |
| 1992 | 43.9 mm (1.7 in) |
| 1993 | 36.6 mm (1.4 in) |
| 1994 | 51.6 mm (2.0 in) |
| 1995 | 35.3 mm (1.4 in) |
| 1996 | 40.9 mm (1.6 in) |
| 1997 | 21.8 mm (0.9 in) |
| 1998 | 30.0 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1950 | 66.0 mm (2.6 in) |
| 1951 | 77.2 mm (3.0 in) |
| 1952 | 75.4 mm (3.0 in) |
| 1953 | 82.4 mm (3.2 in) |
| 1954 | 102.6 mm (4.0 in) |
| 1955 | 95.0 mm (3.7 in) |
| 1956 | 134.6 mm (5.3 in) |
| 1957 | 66.1 mm (2.6 in) |
| 1958 | 113.8 mm (4.5 in) |
| 1959 | 135.9 mm (5.4 in) |
| 1961 | 113.9 mm (4.5 in) |
| 1962 | 111.7 mm (4.4 in) |
| 1963 | 125.5 mm (4.9 in) |
| 1964 | 75.4 mm (3.0 in) |
| 1965 | 83.3 mm (3.3 in) |
| 1966 | 118.7 mm (4.7 in) |
| 1967 | 92.0 mm (3.6 in) |
| 1968 | 78.1 mm (3.1 in) |
| 1969 | 141.4 mm (5.6 in) |
| 1970 | 52.4 mm (2.1 in) |
| 1971 | 103.5 mm (4.1 in) |
| 1972 | 43.3 mm (1.7 in) |
| 1973 | 114.3 mm (4.5 in) |
| 1974 | 75.1 mm (3.0 in) |
| 1975 | 178.5 mm (7.0 in) |
| 1976 | 119.6 mm (4.7 in) |
| 1977 | 66.3 mm (2.6 in) |
| 1978 | 103.4 mm (4.1 in) |
| 1979 | 42.7 mm (1.7 in) |
| 1980 | 85.0 mm (3.3 in) |
| 1981 | 56.9 mm (2.2 in) |
| 1982 | 102.6 mm (4.0 in) |
| 1983 | 75.0 mm (3.0 in) |
| 1984 | 96.0 mm (3.8 in) |
| 1985 | 63.3 mm (2.5 in) |
| 1986 | 50.1 mm (2.0 in) |
| 1987 | 99.4 mm (3.9 in) |
| 1988 | 59.0 mm (2.3 in) |
| 1989 | 52.4 mm (2.1 in) |
| 1990 | 84.4 mm (3.3 in) |
| 1991 | 127.5 mm (5.0 in) |
| 1992 | 90.2 mm (3.6 in) |
| 1993 | 62.8 mm (2.5 in) |
| 1994 | 62.5 mm (2.5 in) |
| 1995 | 56.9 mm (2.2 in) |
| 1996 | 67.7 mm (2.7 in) |
| 1997 | 42.7 mm (1.7 in) |
| 1998 | 62.6 mm (2.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1950 | 147 days |
| 1951 | 75 days |
| 1952 | 60 days |
| 1953 | 80 days |
| 1954 | 127 days |
| 1955 | 120 days |
| 1956 | 96 days |
| 1957 | 80 days |
| 1958 | 71 days |
| 1959 | 57 days |
| 1961 | 77 days |
| 1962 | 70 days |
| 1963 | 101 days |
| 1964 | 70 days |
| 1965 | 66 days |
| 1966 | 73 days |
| 1967 | 68 days |
| 1968 | 75 days |
| 1969 | 127 days |
| 1970 | 57 days |
| 1971 | 129 days |
| 1972 | 87 days |
| 1973 | 62 days |
| 1974 | 136 days |
| 1975 | 125 days |
| 1976 | 91 days |
| 1977 | 152 days |
| 1978 | 153 days |
| 1979 | 57 days |
| 1980 | 61 days |
| 1981 | 48 days |
| 1982 | 153 days |
| 1983 | 72 days |
| 1984 | 90 days |
| 1985 | 91 days |
| 1986 | 123 days |
| 1987 | 79 days |
| 1988 | 92 days |
| 1989 | 153 days |
| 1990 | 74 days |
| 1991 | 122 days |
| 1992 | 74 days |
| 1993 | 103 days |
| 1994 | 55 days |
| 1995 | 163 days |
| 1996 | 47 days |
| 1997 | 61 days |
| 1998 | 160 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.
Rainfall Return Levels
46 years, 1950 to 1998A day with at least 41.4 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 105.0 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 | 41.4 mm (1.6 in) | |
| 5 years | 56.0 mm (2.2 in) | |
| 10 years | 66.6 mm (2.6 in) | |
| 25 years | 81.1 mm (3.2 in) | |
| 50 years | 92.7 mm (3.6 in) | Longer than the 46 years of record |
| 100 years | 105.0 mm (4.1 in) | Longer than the 46 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, 46 years of values from 1950 to 1998.
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: 95.0 mm (3.7 in) in 1975; 78.7 mm (3.1 in) in 1962; 78.0 mm (3.1 in) in 1958.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Colotlan (Dge), at 1969. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1969 ran 1.1 C (2.0 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1969 | -1.1 | -2.0 | likely | 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).