Coyame (Smn) Weather Records (MXN00008037)
Record envelope, standing records and threshold days for Coyame (Smn) (MXN00008037), Mexico, with 43 years of record.
Key Facts for Coyame (Smn)
- Coyame (Smn) (MXN00008037) is a weather station in Mexico at 29.45 latitude and -105.25 longitude, 1,216 m (3,989 ft) above sea level.
- The station reports from 1961 to 2003, 43 years of record.
- 1,464 records set at Coyame (Smn) still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Coyame (Smn) tied a daily record precipitation of 0.8 mm (0.03 in) on 14 November 2003.
About the Station
- Location: Mexico, 29.45 latitude, -105.25 longitude.
- Elevation: 1,216 m (3,989 ft).
- Period of record: 1961 to 2003, 43 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 | 31.7 C (89.1 F) | -15.0 C (5.0 F) | n/a | n/a |
| Feb | 35.0 C (95.0 F) | -10.0 C (14.0 F) | n/a | n/a |
| Mar | 35.6 C (96.1 F) | -9.4 C (15.1 F) | n/a | n/a |
| Apr | 40.0 C (104.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| May | 41.7 C (107.1 F) | -2.2 C (28.0 F) | n/a | n/a |
| Jun | 47.8 C (118.0 F) | 5.0 C (41.0 F) | n/a | n/a |
| Jul | 42.8 C (109.0 F) | 10.0 C (50.0 F) | n/a | n/a |
| Aug | 42.8 C (109.0 F) | 8.9 C (48.0 F) | n/a | n/a |
| Sep | 40.6 C (105.1 F) | -3.3 C (26.1 F) | n/a | n/a |
| Oct | 38.9 C (102.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| Nov | 38.9 C (102.0 F) | -8.3 C (17.1 F) | n/a | n/a |
| Dec | 30.0 C (86.0 F) | -12.2 C (10.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1961 | 13 |
| 1962 | 64 |
| 1963 | 112 |
| 1964 | 80 |
| 1965 | 64 |
| 1966 | 37 |
| 1967 | 57 |
| 1968 | 47 |
| 1969 | 61 |
| 1970 | 74 |
| 1971 | 83 |
| 1972 | 53 |
| 1973 | 74 |
| 1974 | 39 |
| 1975 | 46 |
| 1976 | 46 |
| 1977 | 21 |
| 1978 | 20 |
| 1979 | 20 |
| 1980 | 27 |
| 1981 | 14 |
| 1982 | 22 |
| 1983 | 27 |
| 1984 | 23 |
| 1985 | 33 |
| 1986 | 18 |
| 1987 | 22 |
| 1988 | 24 |
| 1989 | 17 |
| 1990 | 14 |
| 1991 | 16 |
| 1992 | 30 |
| 1993 | 14 |
| 1994 | 3 |
| 1995 | 10 |
| 1996 | 49 |
| 1997 | 49 |
| 1998 | 30 |
| 2003 | 11 |
Wettest Day of Each Month
Aug: 115.8 mm (4.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 24.9 mm (1.0 in) | 15 January 1986 |
| Feb | 46.0 mm (1.8 in) | 3 February 1992 |
| Mar | 19.8 mm (0.8 in) | 19 March 1970 |
| Apr | 19.8 mm (0.8 in) | 21 April 1979 |
| May | 27.9 mm (1.1 in) | 29 May 1986 |
| Jun | 72.9 mm (2.9 in) | 21 June 1977 |
| Jul | 74.9 mm (2.9 in) | 1 July 1993 |
| Aug | 115.8 mm (4.6 in) | 4 August 1978 |
| Sep | 88.9 mm (3.5 in) | 25 September 1978 |
| Oct | 46.0 mm (1.8 in) | 16 October 1985 |
| Nov | 19.8 mm (0.8 in) | 4 November 1978 |
| Dec | 41.9 mm (1.6 in) | 21 December 1986 |
Period of Record Coverage
1961 to 2003| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1961 | 79 | 22% | No |
| 1962 | 364 | 100% | Yes |
| 1963 | 364 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 360 | 99% | Yes |
| 1966 | 360 | 99% | Yes |
| 1967 | 348 | 95% | Yes |
| 1968 | 362 | 99% | Yes |
| 1969 | 360 | 99% | Yes |
| 1970 | 299 | 82% | No |
| 1971 | 364 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 362 | 99% | Yes |
| 1975 | 354 | 97% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 364 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 362 | 99% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 304 | 83% | No |
| 1988 | 331 | 90% | Yes |
| 1989 | 150 | 41% | No |
| 1990 | 365 | 100% | Yes |
| 1991 | 349 | 96% | Yes |
| 1992 | 354 | 97% | Yes |
| 1993 | 352 | 96% | Yes |
| 1994 | 60 | 16% | No |
| 1995 | 88 | 24% | No |
| 1996 | 207 | 57% | No |
| 1997 | 236 | 65% | No |
| 1998 | 293 | 80% | No |
| 2003 | 300 | 82% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 14 November 2003 | Coyame (Smn), MX | daily rain (Tie) | 0.8 mm (0.03 in) | tie | 34 years | 3 of 100 (Routine) |
| 3 November 2003 | Coyame (Smn), MX | daily high max | 30.6 C (87.1 F) | 0.6 C (1.1 F) | 37 years | 16 of 100 (Routine) |
| 27 October 2003 | Coyame (Smn), MX | daily low min | 0.6 C (33.1 F) | 4.4 C (7.9 F) | 25 years | 20 of 100 (Routine) |
| 13 October 2003 | Coyame (Smn), MX | daily low max | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 26 years | 15 of 100 (Routine) |
| 11 October 2003 | Coyame (Smn), MX | daily low max (Tie) | 20.0 C (68.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 30 September 2003 | Coyame (Smn), MX | daily high max (Tie) | 37.8 C (100.0 F) | tie | 25 years | 2 of 100 (Routine) |
| 12 September 2003 | Coyame (Smn), MX | daily low max | 20.6 C (69.1 F) | 3.3 C (5.9 F) | 28 years | 18 of 100 (Routine) |
| 7 September 2003 | Coyame (Smn), MX | daily low max (Tie) | 25.0 C (77.0 F) | tie | 36 years | 3 of 100 (Routine) |
| 6 September 2003 | Coyame (Smn), MX | daily low max (Tie) | 21.7 C (71.1 F) | tie | 26 years | 3 of 100 (Routine) |
| 23 August 2003 | Coyame (Smn), MX | daily high max (Tie) | 38.9 C (102.0 F) | tie | 10 years | 1 of 100 (Routine) |
| 21 August 2003 | Coyame (Smn), MX | daily high max | 40.0 C (104.0 F) | 1.1 C (2.0 F) | 32 years | 16 of 100 (Routine) |
| 20 August 2003 | Coyame (Smn), MX | daily high min (Tie) | 20.0 C (68.0 F) | tie | 38 years | 3 of 100 (Routine) |
| 12 August 2003 | Coyame (Smn), MX | daily high max (Tie) | 37.8 C (100.0 F) | tie | 17 years | 2 of 100 (Routine) |
| 10 August 2003 | Coyame (Smn), MX | daily high max (Tie) | 40.0 C (104.0 F) | tie | 9 years | 1 of 100 (Routine) |
| 5 August 2003 | Coyame (Smn), MX | daily high max (Tie) | 40.0 C (104.0 F) | tie | 4 years | 1 of 100 (Routine) |
| 4 August 2003 | Coyame (Smn), MX | daily high max (Tie) | 40.0 C (104.0 F) | tie | 4 years | 1 of 100 (Routine) |
| 28 July 2003 | Coyame (Smn), MX | daily high max | 40.0 C (104.0 F) | 2.2 C (4.0 F) | 22 years | 15 of 100 (Routine) |
| 25 July 2003 | Coyame (Smn), MX | daily high min (Tie) | 22.8 C (73.0 F) | tie | 40 years | 4 of 100 (Routine) |
| 23 July 2003 | Coyame (Smn), MX | daily high max (Tie) | 40.0 C (104.0 F) | tie | 29 years | 3 of 100 (Routine) |
| 19 July 2003 | Coyame (Smn), MX | daily high max | 40.0 C (104.0 F) | 1.1 C (2.0 F) | 32 years | 15 of 100 (Routine) |
Climate Trend
27 complete years, 1962 to 1993| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1962 | 20.1 C | +1.80 C |
| 1963 | 21.2 C | +2.97 C |
| 1964 | 17.7 C | -0.57 C |
| 1965 | 19.8 C | +1.50 C |
| 1966 | 17.7 C | -0.61 C |
| 1968 | 17.4 C | -0.87 C |
| 1969 | 19.5 C | +1.23 C |
| 1971 | 18.5 C | +0.20 C |
| 1972 | 19.3 C | +1.07 C |
| 1973 | 19.7 C | +1.44 C |
| 1974 | 17.9 C | -0.39 C |
| 1975 | 16.0 C | -2.29 C |
| 1976 | 16.0 C | -2.29 C |
| 1977 | 18.1 C | -0.15 C |
| 1978 | 17.7 C | -0.62 C |
| 1979 | 17.2 C | -1.05 C |
| 1980 | 18.2 C | -0.03 C |
| 1981 | 18.0 C | -0.28 C |
| 1982 | 18.2 C | -0.05 C |
| 1983 | 17.8 C | -0.48 C |
| 1984 | 17.2 C | -1.07 C |
| 1985 | 17.4 C | -0.84 C |
| 1986 | 17.3 C | -1.00 C |
| 1990 | 18.6 C | +0.36 C |
| 1991 | 18.7 C | +0.38 C |
| 1992 | 19.1 C | +0.82 C |
| 1993 | 19.1 C | +0.81 C |
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1961 to 2003| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 47.8 C (118.0 F) | 1983 | 40.6 C (105.1 F) | 39 |
| Coldest night (TNn) | -15.0 C (5.0 F) | 1962 | -8.3 C (17.1 F) | 39 |
| Wettest day (Rx1day) | 115.8 mm (4.6 in) | 1978 | 31.0 mm (1.2 in) | 39 |
| Wettest five days (Rx5day) | 206.6 mm (8.1 in) | 1978 | 57.5 mm (2.3 in) | 39 |
| Longest dry spell (CDD) | 365 days | 1974 | 74 days | 39 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1961 | 32.2 C (90.0 F) |
| 1962 | 40.6 C (105.1 F) |
| 1963 | 41.7 C (107.1 F) |
| 1964 | 41.7 C (107.1 F) |
| 1965 | 41.7 C (107.1 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 40.6 C (105.1 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 42.8 C (109.0 F) |
| 1971 | 42.8 C (109.0 F) |
| 1972 | 38.9 C (102.0 F) |
| 1973 | 42.8 C (109.0 F) |
| 1974 | 38.9 C (102.0 F) |
| 1975 | 40.0 C (104.0 F) |
| 1976 | 40.0 C (104.0 F) |
| 1977 | 38.9 C (102.0 F) |
| 1978 | 41.7 C (107.1 F) |
| 1979 | 40.6 C (105.1 F) |
| 1980 | 41.7 C (107.1 F) |
| 1981 | 40.6 C (105.1 F) |
| 1982 | 40.0 C (104.0 F) |
| 1983 | 47.8 C (118.0 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 37.8 C (100.0 F) |
| 1987 | 40.6 C (105.1 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 40.6 C (105.1 F) |
| 1990 | 40.6 C (105.1 F) |
| 1991 | 42.8 C (109.0 F) |
| 1992 | 43.9 C (111.0 F) |
| 1993 | 40.6 C (105.1 F) |
| 1994 | 32.8 C (91.0 F) |
| 1995 | 40.0 C (104.0 F) |
| 1996 | 42.8 C (109.0 F) |
| 1997 | 40.6 C (105.1 F) |
| 1998 | 41.7 C (107.1 F) |
| 2003 | 40.0 C (104.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1961 | -12.2 C (10.0 F) |
| 1962 | -15.0 C (5.0 F) |
| 1963 | -9.4 C (15.1 F) |
| 1964 | -9.4 C (15.1 F) |
| 1965 | -9.4 C (15.1 F) |
| 1966 | -5.0 C (23.0 F) |
| 1967 | -6.1 C (21.0 F) |
| 1968 | -5.0 C (23.0 F) |
| 1969 | -6.1 C (21.0 F) |
| 1970 | -3.3 C (26.1 F) |
| 1971 | -9.4 C (15.1 F) |
| 1972 | -6.1 C (21.0 F) |
| 1973 | -7.2 C (19.0 F) |
| 1974 | -9.4 C (15.1 F) |
| 1975 | -8.3 C (17.1 F) |
| 1976 | -9.4 C (15.1 F) |
| 1977 | -8.3 C (17.1 F) |
| 1978 | -7.2 C (19.0 F) |
| 1979 | -7.2 C (19.0 F) |
| 1980 | -7.2 C (19.0 F) |
| 1981 | -4.4 C (24.1 F) |
| 1982 | -6.1 C (21.0 F) |
| 1983 | -10.0 C (14.0 F) |
| 1984 | -8.3 C (17.1 F) |
| 1985 | -10.0 C (14.0 F) |
| 1986 | -9.4 C (15.1 F) |
| 1987 | -12.2 C (10.0 F) |
| 1988 | -11.1 C (12.0 F) |
| 1989 | -9.4 C (15.1 F) |
| 1990 | -6.1 C (21.0 F) |
| 1991 | -5.0 C (23.0 F) |
| 1992 | -6.1 C (21.0 F) |
| 1993 | -8.3 C (17.1 F) |
| 1994 | -7.2 C (19.0 F) |
| 1995 | 1.7 C (35.1 F) |
| 1996 | -8.3 C (17.1 F) |
| 1997 | -10.0 C (14.0 F) |
| 1998 | -6.1 C (21.0 F) |
| 2003 | -3.3 C (26.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1961 | 0.0 mm (0.00 in) |
| 1962 | 11.9 mm (0.5 in) |
| 1963 | 31.8 mm (1.3 in) |
| 1964 | 27.9 mm (1.1 in) |
| 1965 | 22.9 mm (0.9 in) |
| 1966 | 47.8 mm (1.9 in) |
| 1967 | 2.3 mm (0.09 in) |
| 1968 | 3.8 mm (0.15 in) |
| 1969 | 27.9 mm (1.1 in) |
| 1970 | 30.0 mm (1.2 in) |
| 1971 | 39.9 mm (1.6 in) |
| 1972 | 38.9 mm (1.5 in) |
| 1973 | 55.9 mm (2.2 in) |
| 1974 | 0.0 mm (0.00 in) |
| 1975 | 43.4 mm (1.7 in) |
| 1976 | 30.0 mm (1.2 in) |
| 1977 | 72.9 mm (2.9 in) |
| 1978 | 115.8 mm (4.6 in) |
| 1979 | 31.0 mm (1.2 in) |
| 1980 | 31.0 mm (1.2 in) |
| 1981 | 50.8 mm (2.0 in) |
| 1982 | 22.9 mm (0.9 in) |
| 1983 | 23.9 mm (0.9 in) |
| 1984 | 27.9 mm (1.1 in) |
| 1985 | 46.0 mm (1.8 in) |
| 1986 | 67.8 mm (2.7 in) |
| 1987 | 36.8 mm (1.4 in) |
| 1988 | 59.9 mm (2.4 in) |
| 1989 | 7.9 mm (0.31 in) |
| 1990 | 47.0 mm (1.9 in) |
| 1991 | 63.8 mm (2.5 in) |
| 1992 | 46.0 mm (1.8 in) |
| 1993 | 74.9 mm (2.9 in) |
| 1994 | 17.8 mm (0.7 in) |
| 1995 | 39.9 mm (1.6 in) |
| 1996 | 21.8 mm (0.9 in) |
| 1997 | 30.0 mm (1.2 in) |
| 1998 | 19.8 mm (0.8 in) |
| 2003 | 9.9 mm (0.39 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1961 | 0.0 mm (0.00 in) |
| 1962 | 14.7 mm (0.6 in) |
| 1963 | 55.2 mm (2.2 in) |
| 1964 | 48.8 mm (1.9 in) |
| 1965 | 57.5 mm (2.3 in) |
| 1966 | 69.0 mm (2.7 in) |
| 1967 | 4.0 mm (0.16 in) |
| 1968 | 6.2 mm (0.24 in) |
| 1969 | 44.7 mm (1.8 in) |
| 1970 | 54.9 mm (2.2 in) |
| 1971 | 54.6 mm (2.1 in) |
| 1972 | 61.3 mm (2.4 in) |
| 1973 | 71.5 mm (2.8 in) |
| 1974 | 0.0 mm (0.00 in) |
| 1975 | 74.1 mm (2.9 in) |
| 1976 | 70.7 mm (2.8 in) |
| 1977 | 80.0 mm (3.1 in) |
| 1978 | 206.6 mm (8.1 in) |
| 1979 | 54.9 mm (2.2 in) |
| 1980 | 85.9 mm (3.4 in) |
| 1981 | 85.9 mm (3.4 in) |
| 1982 | 23.7 mm (0.9 in) |
| 1983 | 27.2 mm (1.1 in) |
| 1984 | 77.5 mm (3.1 in) |
| 1985 | 66.6 mm (2.6 in) |
| 1986 | 102.4 mm (4.0 in) |
| 1987 | 59.4 mm (2.3 in) |
| 1988 | 70.4 mm (2.8 in) |
| 1989 | 12.2 mm (0.5 in) |
| 1990 | 89.4 mm (3.5 in) |
| 1991 | 136.1 mm (5.4 in) |
| 1992 | 50.6 mm (2.0 in) |
| 1993 | 92.7 mm (3.6 in) |
| 1994 | 20.6 mm (0.8 in) |
| 1995 | 49.8 mm (2.0 in) |
| 1996 | 68.3 mm (2.7 in) |
| 1997 | 55.6 mm (2.2 in) |
| 1998 | 62.2 mm (2.4 in) |
| 2003 | 14.7 mm (0.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1961 | 80 days |
| 1962 | 184 days |
| 1963 | 125 days |
| 1964 | 105 days |
| 1965 | 185 days |
| 1966 | 85 days |
| 1967 | 154 days |
| 1968 | 99 days |
| 1969 | 92 days |
| 1970 | 88 days |
| 1971 | 168 days |
| 1972 | 106 days |
| 1973 | 88 days |
| 1974 | 365 days |
| 1975 | 98 days |
| 1976 | 99 days |
| 1977 | 105 days |
| 1978 | 73 days |
| 1979 | 74 days |
| 1980 | 140 days |
| 1981 | 71 days |
| 1982 | 61 days |
| 1983 | 58 days |
| 1984 | 105 days |
| 1985 | 61 days |
| 1986 | 37 days |
| 1987 | 71 days |
| 1988 | 49 days |
| 1989 | 38 days |
| 1990 | 51 days |
| 1991 | 38 days |
| 1992 | 30 days |
| 1993 | 52 days |
| 1994 | 19 days |
| 1995 | 29 days |
| 1996 | 31 days |
| 1997 | 30 days |
| 1998 | 70 days |
| 2003 | 56 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
25 years with a frostAcross 25 years with a frost, the median last spring frost at Coyame (Smn) falls on 20 March and the median first autumn frost on 11 November, which leaves a median of 234 days between them.
Fitted over all years, the growing season changes by -6.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1964 to 1993) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 20 March | n/a | 20 March | n/a | -3.0 days per decade |
| First autumn frost | 11 November | n/a | 11 November | n/a | -9.0 days per decade |
| Growing days | 234 days | n/a | 234 days | n/a | -6.0 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.
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).