Montemorelos Weather Records (MXN00019048)
Record envelope, standing records and threshold days for Montemorelos (MXN00019048), Mexico, with 85 years of record.
Key Facts for Montemorelos
- Montemorelos (MXN00019048) is a weather station in Mexico at 25.17 latitude and -99.82 longitude, 421 m (1,381 ft) above sea level.
- The station reports from 1927 to 2011, 85 years of record.
- 1,464 records set at Montemorelos still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Montemorelos set a daily record precipitation of 17.3 mm (0.7 in) on 10 December 2011.
About the Station
- Location: Mexico, 25.17 latitude, -99.82 longitude.
- Elevation: 421 m (1,381 ft).
- Period of record: 1927 to 2011, 85 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 | 40.6 C (105.1 F) | -10.0 C (14.0 F) | n/a | n/a |
| Feb | 42.8 C (109.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Mar | 42.8 C (109.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Apr | 44.4 C (111.9 F) | 0.6 C (33.1 F) | n/a | n/a |
| May | 45.0 C (113.0 F) | 5.0 C (41.0 F) | n/a | n/a |
| Jun | 46.1 C (115.0 F) | 10.0 C (50.0 F) | n/a | n/a |
| Jul | 45.0 C (113.0 F) | 15.0 C (59.0 F) | n/a | n/a |
| Aug | 45.0 C (113.0 F) | 16.1 C (61.0 F) | n/a | n/a |
| Sep | 44.4 C (111.9 F) | 8.3 C (46.9 F) | n/a | n/a |
| Oct | 39.4 C (102.9 F) | 1.7 C (35.1 F) | n/a | n/a |
| Nov | 39.4 C (102.9 F) | -1.7 C (28.9 F) | n/a | n/a |
| Dec | 38.3 C (100.9 F) | -7.2 C (19.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1927 | 36 |
| 1928 | 30 |
| 1929 | 25 |
| 1930 | 129 |
| 1942 | 6 |
| 1943 | 15 |
| 1944 | 17 |
| 1945 | 14 |
| 1946 | 8 |
| 1947 | 29 |
| 1948 | 33 |
| 1949 | 32 |
| 1950 | 26 |
| 1951 | 26 |
| 1952 | 18 |
| 1953 | 26 |
| 1954 | 18 |
| 1955 | 23 |
| 1956 | 11 |
| 1957 | 23 |
| 1958 | 14 |
| 1959 | 23 |
| 1960 | 18 |
| 1961 | 25 |
| 1962 | 17 |
| 1963 | 15 |
| 1964 | 17 |
| 1965 | 14 |
| 1966 | 19 |
| 1967 | 16 |
| 1968 | 15 |
| 1969 | 10 |
| 1970 | 21 |
| 1971 | 18 |
| 1972 | 20 |
| 1973 | 24 |
| 1974 | 23 |
| 1975 | 24 |
| 1976 | 31 |
| 1977 | 8 |
| 1978 | 9 |
| 1979 | 18 |
| 1980 | 11 |
| 1981 | 19 |
| 1982 | 22 |
| 1983 | 18 |
| 1984 | 22 |
| 1985 | 12 |
| 1986 | 9 |
| 1987 | 9 |
| 1988 | 5 |
| 1989 | 18 |
| 1990 | 11 |
| 1991 | 52 |
| 1992 | 16 |
| 1993 | 10 |
| 1994 | 12 |
| 1995 | 15 |
| 1996 | 31 |
| 1997 | 23 |
| 1998 | 45 |
| 1999 | 19 |
| 2000 | 50 |
| 2001 | 3 |
| 2002 | 4 |
| 2003 | 9 |
| 2004 | 3 |
| 2005 | 6 |
| 2006 | 6 |
| 2008 | 30 |
| 2009 | 5 |
| 2010 | 12 |
| 2011 | 13 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1998-06-15 | Record high maximum temperature | Record high maximum temperature 46.1 C (115.0 F) |
| 2005-07-20 | Record daily precipitation | Record daily precipitation 221.0 mm (8.7 in) |
| 2010-06-30 | Record daily precipitation | Record daily precipitation 279.9 mm (11.0 in) |
Wettest Day of Each Month
Jun: 279.9 mm (11.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 67.8 mm (2.7 in) | 21 January 1994 |
| Feb | 65.8 mm (2.6 in) | 16 February 1957 |
| Mar | 99.8 mm (3.9 in) | 22 March 1967 |
| Apr | 124.0 mm (4.9 in) | 12 April 1957 |
| May | 109.0 mm (4.3 in) | 15 May 1956 |
| Jun | 279.9 mm (11.0 in) | 30 June 2010 |
| Jul | 221.0 mm (8.7 in) | 20 July 2005 |
| Aug | 129.8 mm (5.1 in) | 19 August 1967 |
| Sep | 200.7 mm (7.9 in) | 15 September 2002 |
| Oct | 205.0 mm (8.1 in) | 5 October 1942 |
| Nov | 104.9 mm (4.1 in) | 9 November 1983 |
| Dec | 79.0 mm (3.1 in) | 5 December 2003 |
Period of Record Coverage
1927 to 2011| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1927 | 362 | 99% | Yes |
| 1928 | 364 | 99% | Yes |
| 1929 | 360 | 99% | Yes |
| 1930 | 240 | 66% | No |
| 1942 | 108 | 30% | No |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 334 | 92% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 360 | 99% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 362 | 99% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 363 | 99% | Yes |
| 1963 | 362 | 99% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 334 | 92% | Yes |
| 1975 | 363 | 99% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 362 | 99% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 361 | 99% | Yes |
| 1984 | 359 | 98% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 177 | 48% | No |
| 1987 | 164 | 45% | No |
| 1988 | 84 | 23% | No |
| 1989 | 320 | 88% | No |
| 1990 | 358 | 98% | Yes |
| 1991 | 319 | 87% | No |
| 1992 | 354 | 97% | Yes |
| 1993 | 330 | 90% | Yes |
| 1994 | 354 | 97% | Yes |
| 1995 | 322 | 88% | No |
| 1996 | 356 | 97% | Yes |
| 1997 | 358 | 98% | Yes |
| 1998 | 321 | 88% | No |
| 1999 | 325 | 89% | No |
| 2000 | 327 | 89% | No |
| 2001 | 326 | 89% | No |
| 2002 | 358 | 98% | Yes |
| 2003 | 359 | 98% | Yes |
| 2004 | 360 | 98% | Yes |
| 2005 | 356 | 98% | Yes |
| 2006 | 206 | 56% | No |
| 2008 | 327 | 89% | No |
| 2009 | 360 | 99% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 359 | 98% | Yes |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 10 December 2011 | Montemorelos, MX | daily rain | 17.3 mm (0.7 in) | 10.4 mm (0.4 in) | 57 years | 20 of 100 (Routine) |
| 28 November 2011 | Montemorelos, MX | daily low min | 0.0 C (32.0 F) | 0.6 C (1.1 F) | 82 years | 33 of 100 (Routine) |
| 21 November 2011 | Montemorelos, MX | daily high min | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 6 years | 12 of 100 (Routine) |
| 11 November 2011 | Montemorelos, MX | daily low min (Tie) | 2.8 C (37.0 F) | tie | 57 years | 6 of 100 (Routine) |
| 8 November 2011 | Montemorelos, MX | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 16 years | 14 of 100 (Routine) |
| 19 October 2011 | Montemorelos, MX | daily low min (Tie) | 8.9 C (48.0 F) | tie | 56 years | 6 of 100 (Routine) |
| 7 October 2011 | Montemorelos, MX | daily high max (Tie) | 35.0 C (95.0 F) | tie | 62 years | 6 of 100 (Routine) |
| 27 September 2011 | Montemorelos, MX | daily high max (Tie) | 37.8 C (100.0 F) | tie | 52 years | 5 of 100 (Routine) |
| 26 September 2011 | Montemorelos, MX | daily high max | 40.0 C (104.0 F) | 1.1 C (2.0 F) | 25 years | 17 of 100 (Routine) |
| 25 September 2011 | Montemorelos, MX | daily high max | 38.9 C (102.0 F) | 1.7 C (3.1 F) | 12 years | 15 of 100 (Routine) |
| 12 September 2011 | Montemorelos, MX | daily low min (Tie) | 16.7 C (62.1 F) | tie | 50 years | 5 of 100 (Routine) |
| 10 September 2011 | Montemorelos, MX | daily low min (Tie) | 15.0 C (59.0 F) | tie | 36 years | 4 of 100 (Routine) |
| 9 September 2011 | Montemorelos, MX | daily low min | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 36 years | 21 of 100 (Routine) |
| 30 June 2011 | Montemorelos, MX | daily low max (Tie) | 23.9 C (75.0 F) | tie | 0 years | 2 of 100 (Routine) |
| 26 April 2011 | Montemorelos, MX | daily high max (Tie) | 42.8 C (109.0 F) | tie | 17 years | 3 of 100 (Routine) |
| 8 April 2011 | Montemorelos, MX | daily high max (Tie) | 40.0 C (104.0 F) | tie | 12 years | 2 of 100 (Routine) |
| 8 March 2011 | Montemorelos, MX | daily high max | 36.7 C (98.1 F) | 1.7 C (3.1 F) | 60 years | 28 of 100 (Routine) |
| 27 February 2011 | Montemorelos, MX | daily high max (Tie) | 37.8 C (100.0 F) | tie | 21 years | 3 of 100 (Routine) |
| 13 February 2011 | Montemorelos, MX | daily low min | -4.4 C (24.1 F) | 3.3 C (5.9 F) | 51 years | 30 of 100 (Routine) |
| 12 February 2011 | Montemorelos, MX | daily low min | -3.3 C (26.1 F) | 1.1 C (2.0 F) | 56 years | 26 of 100 (Routine) |
Climate Trend
55 complete years, 1927 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1927 | 24.7 C | +2.58 C |
| 1928 | 22.4 C | +0.25 C |
| 1929 | 23.1 C | +0.93 C |
| 1943 | 22.0 C | -0.16 C |
| 1944 | 21.5 C | -0.67 C |
| 1945 | 22.6 C | +0.43 C |
| 1946 | 22.9 C | +0.76 C |
| 1947 | 22.2 C | +0.07 C |
| 1948 | 22.6 C | +0.44 C |
| 1949 | 22.8 C | +0.62 C |
| 1951 | 22.4 C | +0.28 C |
| 1952 | 22.2 C | +0.04 C |
| 1953 | 23.0 C | +0.82 C |
| 1954 | 23.2 C | +1.00 C |
| 1955 | 22.4 C | +0.19 C |
| 1956 | 22.1 C | -0.04 C |
| 1957 | 22.5 C | +0.36 C |
| 1958 | 21.4 C | -0.78 C |
| 1959 | 21.1 C | -1.09 C |
| 1960 | 21.6 C | -0.57 C |
| 1961 | 21.5 C | -0.66 C |
| 1962 | 22.5 C | +0.38 C |
| 1963 | 22.0 C | -0.15 C |
| 1964 | 22.1 C | -0.11 C |
| 1965 | 22.2 C | -0.01 C |
| 1966 | 20.4 C | -1.74 C |
| 1967 | 21.6 C | -0.53 C |
| 1968 | 20.5 C | -1.69 C |
| 1969 | 21.5 C | -0.71 C |
| 1971 | 22.4 C | +0.24 C |
| 1972 | 21.5 C | -0.66 C |
| 1973 | 21.0 C | -1.20 C |
| 1975 | 21.5 C | -0.71 C |
| 1976 | 20.2 C | -1.92 C |
| 1977 | 21.4 C | -0.77 C |
| 1978 | 21.4 C | -0.77 C |
| 1979 | 21.3 C | -0.84 C |
| 1980 | 22.4 C | +0.20 C |
| 1981 | 21.7 C | -0.45 C |
| 1982 | 22.4 C | +0.22 C |
| 1983 | 21.6 C | -0.57 C |
| 1984 | 22.2 C | +0.01 C |
| 1985 | 22.7 C | +0.56 C |
| 1990 | 23.5 C | +1.32 C |
| 1992 | 22.9 C | +0.73 C |
| 1994 | 23.7 C | +1.56 C |
| 1996 | 23.7 C | +1.55 C |
| 1997 | 23.4 C | +1.22 C |
| 2002 | 22.3 C | +0.12 C |
| 2003 | 22.1 C | -0.09 C |
| 2004 | 22.1 C | -0.06 C |
| 2005 | 22.4 C | +0.19 C |
| 2009 | 22.6 C | +0.43 C |
| 2010 | 20.9 C | -1.29 C |
| 2011 | 23.1 C | +0.91 C |
The fitted trend in annual mean temperature here over 1927 to 2011 is -0.03 C (-0.14 to 0.08) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.25 to 0.15) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.03 C (-0.14 to 0.08) per decade | -0.05 F (-0.25 to 0.15) per decade | 1927 to 2011 | 55 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.2 to 0.1) per decade | -0.1 F (-0.4 to 0.2) per decade | 1927 to 2011 | 55 | Not clearly different from zero |
| Mean daily minimum | 0.02 C (-0.07 to 0.11) per decade | 0.03 F (-0.13 to 0.20) per decade | 1927 to 2011 | 55 | 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
1927 to 2011| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.1 C (115.0 F) | 1998 | 40.6 C (105.1 F) | 73 |
| Coldest night (TNn) | -10.0 C (14.0 F) | 1962 | -1.1 C (30.0 F) | 73 |
| Wettest day (Rx1day) | 279.9 mm (11.0 in) | 2010 | 88.9 mm (3.5 in) | 73 |
| Wettest five days (Rx5day) | 508.2 mm (20.0 in) | 2010 | 144.5 mm (5.7 in) | 73 |
| Longest dry spell (CDD) | 93 days | 1928 | 42 days | 73 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1927 | 42.8 C (109.0 F) |
| 1928 | 39.4 C (102.9 F) |
| 1929 | 39.4 C (102.9 F) |
| 1930 | 38.3 C (100.9 F) |
| 1942 | 36.1 C (97.0 F) |
| 1943 | 41.1 C (106.0 F) |
| 1944 | 39.4 C (102.9 F) |
| 1945 | 40.6 C (105.1 F) |
| 1946 | 40.6 C (105.1 F) |
| 1947 | 41.1 C (106.0 F) |
| 1948 | 42.2 C (108.0 F) |
| 1949 | 41.7 C (107.1 F) |
| 1950 | 43.3 C (109.9 F) |
| 1951 | 42.2 C (108.0 F) |
| 1952 | 42.2 C (108.0 F) |
| 1953 | 42.2 C (108.0 F) |
| 1954 | 45.0 C (113.0 F) |
| 1955 | 43.3 C (109.9 F) |
| 1956 | 40.0 C (104.0 F) |
| 1957 | 43.3 C (109.9 F) |
| 1958 | 42.2 C (108.0 F) |
| 1959 | 38.3 C (100.9 F) |
| 1960 | 41.1 C (106.0 F) |
| 1961 | 40.0 C (104.0 F) |
| 1962 | 40.6 C (105.1 F) |
| 1963 | 42.8 C (109.0 F) |
| 1964 | 40.6 C (105.1 F) |
| 1965 | 40.0 C (104.0 F) |
| 1966 | 39.4 C (102.9 F) |
| 1967 | 40.0 C (104.0 F) |
| 1968 | 38.9 C (102.0 F) |
| 1969 | 40.6 C (105.1 F) |
| 1970 | 39.4 C (102.9 F) |
| 1971 | 41.7 C (107.1 F) |
| 1972 | 38.9 C (102.0 F) |
| 1973 | 41.7 C (107.1 F) |
| 1974 | 42.2 C (108.0 F) |
| 1975 | 39.4 C (102.9 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 39.4 C (102.9 F) |
| 1978 | 40.0 C (104.0 F) |
| 1979 | 39.4 C (102.9 F) |
| 1980 | 41.1 C (106.0 F) |
| 1981 | 39.4 C (102.9 F) |
| 1982 | 40.0 C (104.0 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 45.0 C (113.0 F) |
| 1985 | 40.6 C (105.1 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 45.0 C (113.0 F) |
| 1988 | 37.8 C (100.0 F) |
| 1989 | 42.8 C (109.0 F) |
| 1990 | 45.0 C (113.0 F) |
| 1991 | 42.8 C (109.0 F) |
| 1992 | 42.8 C (109.0 F) |
| 1993 | 42.8 C (109.0 F) |
| 1994 | 41.7 C (107.1 F) |
| 1995 | 41.7 C (107.1 F) |
| 1996 | 41.7 C (107.1 F) |
| 1997 | 43.3 C (109.9 F) |
| 1998 | 46.1 C (115.0 F) |
| 1999 | 43.9 C (111.0 F) |
| 2000 | 44.4 C (111.9 F) |
| 2001 | 40.0 C (104.0 F) |
| 2002 | 41.7 C (107.1 F) |
| 2003 | 40.0 C (104.0 F) |
| 2004 | 38.9 C (102.0 F) |
| 2005 | 40.6 C (105.1 F) |
| 2006 | 38.9 C (102.0 F) |
| 2008 | 40.0 C (104.0 F) |
| 2009 | 40.6 C (105.1 F) |
| 2010 | 36.7 C (98.1 F) |
| 2011 | 42.8 C (109.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1927 | 0.0 C (32.0 F) |
| 1928 | 0.0 C (32.0 F) |
| 1929 | 0.6 C (33.1 F) |
| 1930 | 0.0 C (32.0 F) |
| 1942 | 0.6 C (33.1 F) |
| 1943 | 0.0 C (32.0 F) |
| 1944 | -3.3 C (26.1 F) |
| 1945 | 0.0 C (32.0 F) |
| 1946 | 0.0 C (32.0 F) |
| 1947 | -2.2 C (28.0 F) |
| 1948 | -3.3 C (26.1 F) |
| 1949 | -5.6 C (21.9 F) |
| 1950 | -3.3 C (26.1 F) |
| 1951 | -6.1 C (21.0 F) |
| 1952 | 0.0 C (32.0 F) |
| 1953 | -3.3 C (26.1 F) |
| 1954 | 0.0 C (32.0 F) |
| 1955 | -2.2 C (28.0 F) |
| 1956 | -1.7 C (28.9 F) |
| 1957 | -2.2 C (28.0 F) |
| 1958 | 0.0 C (32.0 F) |
| 1959 | 0.0 C (32.0 F) |
| 1960 | -3.3 C (26.1 F) |
| 1961 | 0.0 C (32.0 F) |
| 1962 | -10.0 C (14.0 F) |
| 1963 | -4.4 C (24.1 F) |
| 1964 | -3.3 C (26.1 F) |
| 1965 | 0.0 C (32.0 F) |
| 1966 | -3.3 C (26.1 F) |
| 1967 | -2.2 C (28.0 F) |
| 1968 | 0.0 C (32.0 F) |
| 1969 | 0.0 C (32.0 F) |
| 1970 | 0.0 C (32.0 F) |
| 1971 | -2.8 C (27.0 F) |
| 1972 | -1.1 C (30.0 F) |
| 1973 | -4.4 C (24.1 F) |
| 1974 | -1.1 C (30.0 F) |
| 1975 | -5.0 C (23.0 F) |
| 1976 | -3.3 C (26.1 F) |
| 1977 | -1.1 C (30.0 F) |
| 1978 | -1.7 C (28.9 F) |
| 1979 | -3.3 C (26.1 F) |
| 1980 | -1.1 C (30.0 F) |
| 1981 | -1.1 C (30.0 F) |
| 1982 | -1.7 C (28.9 F) |
| 1983 | -7.2 C (19.0 F) |
| 1984 | -3.3 C (26.1 F) |
| 1985 | -3.3 C (26.1 F) |
| 1986 | 0.6 C (33.1 F) |
| 1987 | 0.0 C (32.0 F) |
| 1988 | 0.0 C (32.0 F) |
| 1989 | -1.1 C (30.0 F) |
| 1990 | -1.1 C (30.0 F) |
| 1991 | 2.2 C (36.0 F) |
| 1992 | 2.2 C (36.0 F) |
| 1993 | 0.6 C (33.1 F) |
| 1994 | 0.6 C (33.1 F) |
| 1995 | 1.7 C (35.1 F) |
| 1996 | -2.2 C (28.0 F) |
| 1997 | 0.0 C (32.0 F) |
| 1998 | 1.1 C (34.0 F) |
| 1999 | 0.0 C (32.0 F) |
| 2000 | 1.7 C (35.1 F) |
| 2001 | 0.0 C (32.0 F) |
| 2002 | 1.7 C (35.1 F) |
| 2003 | 1.7 C (35.1 F) |
| 2004 | -3.3 C (26.1 F) |
| 2005 | 1.7 C (35.1 F) |
| 2006 | -2.2 C (28.0 F) |
| 2008 | 0.0 C (32.0 F) |
| 2009 | 0.6 C (33.1 F) |
| 2010 | -4.4 C (24.1 F) |
| 2011 | -5.0 C (23.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1927 | 59.9 mm (2.4 in) |
| 1928 | 7.9 mm (0.31 in) |
| 1929 | 21.8 mm (0.9 in) |
| 1930 | 19.8 mm (0.8 in) |
| 1942 | 205.0 mm (8.1 in) |
| 1943 | 96.3 mm (3.8 in) |
| 1944 | 80.8 mm (3.2 in) |
| 1945 | 104.9 mm (4.1 in) |
| 1946 | 73.9 mm (2.9 in) |
| 1947 | 81.0 mm (3.2 in) |
| 1948 | 75.7 mm (3.0 in) |
| 1949 | 55.4 mm (2.2 in) |
| 1950 | 52.3 mm (2.1 in) |
| 1951 | 128.8 mm (5.1 in) |
| 1952 | 66.8 mm (2.6 in) |
| 1953 | 96.8 mm (3.8 in) |
| 1954 | 76.5 mm (3.0 in) |
| 1955 | 110.0 mm (4.3 in) |
| 1956 | 109.0 mm (4.3 in) |
| 1957 | 124.0 mm (4.9 in) |
| 1958 | 95.8 mm (3.8 in) |
| 1959 | 70.9 mm (2.8 in) |
| 1960 | 113.8 mm (4.5 in) |
| 1961 | 82.3 mm (3.2 in) |
| 1962 | 88.9 mm (3.5 in) |
| 1963 | 108.0 mm (4.3 in) |
| 1964 | 79.8 mm (3.1 in) |
| 1965 | 104.9 mm (4.1 in) |
| 1966 | 65.8 mm (2.6 in) |
| 1967 | 174.8 mm (6.9 in) |
| 1968 | 96.8 mm (3.8 in) |
| 1969 | 101.9 mm (4.0 in) |
| 1970 | 59.9 mm (2.4 in) |
| 1971 | 87.9 mm (3.5 in) |
| 1972 | 96.8 mm (3.8 in) |
| 1973 | 121.9 mm (4.8 in) |
| 1974 | 126.0 mm (5.0 in) |
| 1975 | 94.5 mm (3.7 in) |
| 1976 | 87.9 mm (3.5 in) |
| 1977 | 145.8 mm (5.7 in) |
| 1978 | 152.9 mm (6.0 in) |
| 1979 | 66.8 mm (2.6 in) |
| 1980 | 53.8 mm (2.1 in) |
| 1981 | 71.9 mm (2.8 in) |
| 1982 | 53.8 mm (2.1 in) |
| 1983 | 131.8 mm (5.2 in) |
| 1984 | 99.8 mm (3.9 in) |
| 1985 | 80.8 mm (3.2 in) |
| 1986 | 56.9 mm (2.2 in) |
| 1987 | 72.9 mm (2.9 in) |
| 1988 | 15.0 mm (0.6 in) |
| 1989 | 108.0 mm (4.3 in) |
| 1990 | 51.8 mm (2.0 in) |
| 1991 | 34.8 mm (1.4 in) |
| 1992 | 63.5 mm (2.5 in) |
| 1993 | 73.4 mm (2.9 in) |
| 1994 | 67.8 mm (2.7 in) |
| 1995 | 112.8 mm (4.4 in) |
| 1996 | 88.9 mm (3.5 in) |
| 1997 | 99.8 mm (3.9 in) |
| 1998 | 86.9 mm (3.4 in) |
| 1999 | 121.4 mm (4.8 in) |
| 2000 | 119.9 mm (4.7 in) |
| 2001 | 104.9 mm (4.1 in) |
| 2002 | 200.7 mm (7.9 in) |
| 2003 | 94.0 mm (3.7 in) |
| 2004 | 87.1 mm (3.4 in) |
| 2005 | 221.0 mm (8.7 in) |
| 2006 | 30.0 mm (1.2 in) |
| 2008 | 190.0 mm (7.5 in) |
| 2009 | 140.5 mm (5.5 in) |
| 2010 | 279.9 mm (11.0 in) |
| 2011 | 84.3 mm (3.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1927 | 143.7 mm (5.7 in) |
| 1928 | 7.9 mm (0.31 in) |
| 1929 | 31.7 mm (1.2 in) |
| 1930 | 54.6 mm (2.1 in) |
| 1942 | 243.4 mm (9.6 in) |
| 1943 | 122.0 mm (4.8 in) |
| 1944 | 150.2 mm (5.9 in) |
| 1945 | 207.3 mm (8.2 in) |
| 1946 | 86.0 mm (3.4 in) |
| 1947 | 237.0 mm (9.3 in) |
| 1948 | 127.2 mm (5.0 in) |
| 1949 | 96.1 mm (3.8 in) |
| 1950 | 82.1 mm (3.2 in) |
| 1951 | 191.8 mm (7.6 in) |
| 1952 | 84.3 mm (3.3 in) |
| 1953 | 198.9 mm (7.8 in) |
| 1954 | 98.6 mm (3.9 in) |
| 1955 | 117.6 mm (4.6 in) |
| 1956 | 111.8 mm (4.4 in) |
| 1957 | 132.6 mm (5.2 in) |
| 1958 | 232.3 mm (9.1 in) |
| 1959 | 109.5 mm (4.3 in) |
| 1960 | 140.0 mm (5.5 in) |
| 1961 | 133.3 mm (5.2 in) |
| 1962 | 120.7 mm (4.8 in) |
| 1963 | 153.2 mm (6.0 in) |
| 1964 | 169.5 mm (6.7 in) |
| 1965 | 108.5 mm (4.3 in) |
| 1966 | 141.3 mm (5.6 in) |
| 1967 | 388.1 mm (15.3 in) |
| 1968 | 144.5 mm (5.7 in) |
| 1969 | 197.5 mm (7.8 in) |
| 1970 | 113.0 mm (4.4 in) |
| 1971 | 120.7 mm (4.8 in) |
| 1972 | 179.3 mm (7.1 in) |
| 1973 | 373.3 mm (14.7 in) |
| 1974 | 238.8 mm (9.4 in) |
| 1975 | 152.3 mm (6.0 in) |
| 1976 | 220.6 mm (8.7 in) |
| 1977 | 296.0 mm (11.7 in) |
| 1978 | 404.9 mm (15.9 in) |
| 1979 | 119.1 mm (4.7 in) |
| 1980 | 87.6 mm (3.4 in) |
| 1981 | 141.3 mm (5.6 in) |
| 1982 | 58.4 mm (2.3 in) |
| 1983 | 225.8 mm (8.9 in) |
| 1984 | 151.2 mm (6.0 in) |
| 1985 | 159.8 mm (6.3 in) |
| 1986 | 142.5 mm (5.6 in) |
| 1987 | 197.1 mm (7.8 in) |
| 1988 | 21.1 mm (0.8 in) |
| 1989 | 109.3 mm (4.3 in) |
| 1990 | 54.5 mm (2.1 in) |
| 1991 | 61.5 mm (2.4 in) |
| 1992 | 130.1 mm (5.1 in) |
| 1993 | 119.1 mm (4.7 in) |
| 1994 | 80.5 mm (3.2 in) |
| 1995 | 250.4 mm (9.9 in) |
| 1996 | 234.5 mm (9.2 in) |
| 1997 | 228.9 mm (9.0 in) |
| 1998 | 105.0 mm (4.1 in) |
| 1999 | 165.4 mm (6.5 in) |
| 2000 | 153.7 mm (6.1 in) |
| 2001 | 227.5 mm (9.0 in) |
| 2002 | 285.3 mm (11.2 in) |
| 2003 | 271.0 mm (10.7 in) |
| 2004 | 154.5 mm (6.1 in) |
| 2005 | 263.7 mm (10.4 in) |
| 2006 | 37.9 mm (1.5 in) |
| 2008 | 271.8 mm (10.7 in) |
| 2009 | 145.1 mm (5.7 in) |
| 2010 | 508.2 mm (20.0 in) |
| 2011 | 158.2 mm (6.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1927 | 72 days |
| 1928 | 93 days |
| 1929 | 49 days |
| 1930 | 58 days |
| 1942 | 35 days |
| 1943 | 36 days |
| 1944 | 31 days |
| 1945 | 58 days |
| 1946 | 49 days |
| 1947 | 40 days |
| 1948 | 48 days |
| 1949 | 25 days |
| 1950 | 37 days |
| 1951 | 41 days |
| 1952 | 47 days |
| 1953 | 43 days |
| 1954 | 53 days |
| 1955 | 51 days |
| 1956 | 33 days |
| 1957 | 54 days |
| 1958 | 36 days |
| 1959 | 44 days |
| 1960 | 22 days |
| 1961 | 30 days |
| 1962 | 48 days |
| 1963 | 30 days |
| 1964 | 28 days |
| 1965 | 31 days |
| 1966 | 47 days |
| 1967 | 38 days |
| 1968 | 34 days |
| 1969 | 43 days |
| 1970 | 65 days |
| 1971 | 77 days |
| 1972 | 36 days |
| 1973 | 24 days |
| 1974 | 45 days |
| 1975 | 42 days |
| 1976 | 32 days |
| 1977 | 25 days |
| 1978 | 46 days |
| 1979 | 47 days |
| 1980 | 46 days |
| 1981 | 28 days |
| 1982 | 49 days |
| 1983 | 61 days |
| 1984 | 77 days |
| 1985 | 42 days |
| 1986 | 31 days |
| 1987 | 49 days |
| 1988 | 33 days |
| 1989 | 25 days |
| 1990 | 36 days |
| 1991 | 40 days |
| 1992 | 37 days |
| 1993 | 30 days |
| 1994 | 26 days |
| 1995 | 28 days |
| 1996 | 63 days |
| 1997 | 30 days |
| 1998 | 42 days |
| 1999 | 59 days |
| 2000 | 36 days |
| 2001 | 46 days |
| 2002 | 50 days |
| 2003 | 27 days |
| 2004 | 32 days |
| 2005 | 48 days |
| 2006 | 48 days |
| 2008 | 55 days |
| 2009 | 41 days |
| 2010 | 64 days |
| 2011 | 65 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
20 years with a frostAcross 20 years with a frost, the median last spring frost at Montemorelos falls on 31 January and the median first autumn frost on 16 December, which leaves a median of 319 days between them.
| Measure | Median, all years | Earliest period | Recent period (1944 to 2011) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 31 January | n/a | 31 January | n/a | n/a |
| First autumn frost | 16 December | n/a | 16 December | n/a | n/a |
| Growing days | 319 days | n/a | 319 days | n/a | n/a |
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
64 years, 1927 to 2011A day with at least 90.5 mm (3.6 in) of rain is expected about once in 2 years. A day with at least 259.2 mm (10.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 90.5 mm (3.6 in) | |
| 5 years | 128.9 mm (5.1 in) | |
| 10 years | 156.9 mm (6.2 in) | |
| 25 years | 195.3 mm (7.7 in) | |
| 50 years | 226.3 mm (8.9 in) | |
| 100 years | 259.2 mm (10.2 in) | Longer than the 64 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, 64 years of values from 1927 to 2011.
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: 279.9 mm (11.0 in) in 2010; 221.0 mm (8.7 in) in 2005; 205.0 mm (8.1 in) in 1942.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Montemorelos, at 1990. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1990 ran 0.5 C (0.8 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1990 | +0.5 | +0.8 | 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).