Atenco Weather Records (MXN00015008)
Record envelope, standing records and threshold days for Atenco (MXN00015008), Mexico, with 52 years of record.
Key Facts for Atenco
- Atenco (MXN00015008) is a weather station in Mexico at 19.53 latitude and -98.90 longitude, 2,245 m (7,365 ft) above sea level.
- The station reports from 1961 to 2012, 52 years of record.
- 1,464 records set at Atenco still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Atenco set a daily record precipitation of 15.0 mm (0.6 in) on 15 September 2012.
About the Station
- Location: Mexico, 19.53 latitude, -98.90 longitude.
- Elevation: 2,245 m (7,365 ft).
- Period of record: 1961 to 2012, 52 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 | 30.6 C (87.1 F) | -9.4 C (15.1 F) | n/a | n/a |
| Feb | 31.7 C (89.1 F) | -9.4 C (15.1 F) | n/a | n/a |
| Mar | 33.9 C (93.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Apr | 35.6 C (96.1 F) | -2.2 C (28.0 F) | n/a | n/a |
| May | 37.8 C (100.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Jun | 35.0 C (95.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Jul | 30.0 C (86.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Aug | 30.0 C (86.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Sep | 30.6 C (87.1 F) | -1.7 C (28.9 F) | n/a | n/a |
| Oct | 31.7 C (89.1 F) | -2.8 C (27.0 F) | n/a | n/a |
| Nov | 30.6 C (87.1 F) | -7.8 C (18.0 F) | n/a | n/a |
| Dec | 30.6 C (87.1 F) | -8.3 C (17.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1961 | 40 |
| 1962 | 32 |
| 1963 | 27 |
| 1964 | 40 |
| 1965 | 37 |
| 1966 | 45 |
| 1967 | 46 |
| 1968 | 39 |
| 1969 | 48 |
| 1970 | 64 |
| 1971 | 34 |
| 1972 | 32 |
| 1973 | 29 |
| 1974 | 28 |
| 1975 | 24 |
| 1976 | 37 |
| 1977 | 32 |
| 1978 | 23 |
| 1979 | 14 |
| 1980 | 31 |
| 1981 | 25 |
| 1982 | 31 |
| 1983 | 44 |
| 1984 | 13 |
| 1985 | 7 |
| 1986 | 24 |
| 1987 | 46 |
| 1988 | 23 |
| 1989 | 14 |
| 1990 | 4 |
| 1995 | 7 |
| 1996 | 22 |
| 1997 | 58 |
| 1998 | 82 |
| 1999 | 29 |
| 2000 | 19 |
| 2001 | 19 |
| 2002 | 22 |
| 2003 | 29 |
| 2004 | 34 |
| 2005 | 32 |
| 2006 | 21 |
| 2007 | 19 |
| 2008 | 16 |
| 2009 | 50 |
| 2010 | 40 |
| 2011 | 15 |
| 2012 | 17 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1998-05-09 | Record high maximum temperature | Record high maximum temperature 37.8 C (100.0 F) |
| 2011-06-30 | Record daily precipitation | Record daily precipitation 85.3 mm (3.4 in) |
Wettest Day of Each Month
Jun: 85.3 mm (3.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 51.3 mm (2.0 in) | 10 January 1967 |
| Feb | 45.5 mm (1.8 in) | 3 February 2010 |
| Mar | 38.9 mm (1.5 in) | 4 March 1988 |
| Apr | 30.5 mm (1.2 in) | 27 April 2004 |
| May | 41.9 mm (1.6 in) | 31 May 2009 |
| Jun | 85.3 mm (3.4 in) | 30 June 2011 |
| Jul | 58.7 mm (2.3 in) | 19 July 2002 |
| Aug | 59.9 mm (2.4 in) | 26 August 2001 |
| Sep | 75.4 mm (3.0 in) | 4 September 1988 |
| Oct | 73.2 mm (2.9 in) | 15 October 1964 |
| Nov | 24.1 mm (0.9 in) | 6 November 1963 |
| Dec | 19.1 mm (0.8 in) | 1 December 1976 |
Period of Record Coverage
1961 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 364 | 100% | 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 | 335 | 92% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 333 | 91% | Yes |
| 1979 | 304 | 83% | No |
| 1980 | 365 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 363 | 99% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 151 | 41% | No |
| 1995 | 105 | 29% | No |
| 1996 | 335 | 92% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 361 | 99% | Yes |
| 2000 | 331 | 90% | Yes |
| 2001 | 352 | 96% | Yes |
| 2002 | 348 | 95% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 325 | 89% | No |
| 2006 | 352 | 96% | Yes |
| 2007 | 352 | 96% | Yes |
| 2008 | 359 | 98% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 289 | 79% | No |
| 2011 | 364 | 100% | Yes |
| 2012 | 274 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 15 September 2012 | Atenco, MX | daily rain | 15.0 mm (0.6 in) | 3.1 mm (0.12 in) | 45 years | 20 of 100 (Routine) |
| 5 September 2012 | Atenco, MX | daily high max (Tie) | 26.7 C (80.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 31 August 2012 | Atenco, MX | daily high max | 27.8 C (82.0 F) | 0.6 C (1.1 F) | 29 years | 15 of 100 (Routine) |
| 24 August 2012 | Atenco, MX | daily high min | 13.9 C (57.0 F) | 0.6 C (1.1 F) | 1 year | 8 of 100 (Routine) |
| 19 August 2012 | Atenco, MX | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 14 years | 11 of 100 (Routine) |
| 17 August 2012 | Atenco, MX | daily low max (Tie) | 20.6 C (69.1 F) | tie | 47 years | 4 of 100 (Routine) |
| 13 August 2012 | Atenco, MX | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 32 years | 16 of 100 (Routine) |
| 12 August 2012 | Atenco, MX | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 29 years | 15 of 100 (Routine) |
| 10 August 2012 | Atenco, MX | daily low max (Tie) | 20.0 C (68.0 F) | tie | 43 years | 4 of 100 (Routine) |
| 10 August 2012 | Atenco, MX | daily high min (Tie) | 12.8 C (55.0 F) | tie | 49 years | 4 of 100 (Routine) |
| 9 August 2012 | Atenco, MX | daily low max | 17.8 C (64.0 F) | 2.2 C (4.0 F) | 43 years | 26 of 100 (Routine) |
| 9 August 2012 | Atenco, MX | daily rain | 13.2 mm (0.5 in) | 2.5 mm (0.10 in) | 26 years | 15 of 100 (Routine) |
| 1 August 2012 | Atenco, MX | daily rain | 22.9 mm (0.9 in) | 0.3 mm (0.01 in) | 16 years | 9 of 100 (Routine) |
| 14 July 2012 | Atenco, MX | daily rain | 19.8 mm (0.8 in) | 5.1 mm (0.20 in) | 3 years | 12 of 100 (Routine) |
| 13 July 2012 | Atenco, MX | daily rain | 25.9 mm (1.0 in) | 3.5 mm (0.14 in) | 41 years | 21 of 100 (Routine) |
| 13 July 2012 | Atenco, MX | daily high min | 13.9 C (57.0 F) | 0.6 C (1.1 F) | 13 years | 11 of 100 (Routine) |
| 28 June 2012 | Atenco, MX | daily high min | 13.9 C (57.0 F) | 1.1 C (2.0 F) | 44 years | 23 of 100 (Routine) |
| 23 June 2012 | Atenco, MX | daily high min (Tie) | 13.9 C (57.0 F) | tie | 45 years | 4 of 100 (Routine) |
| 16 June 2012 | Atenco, MX | daily low max (Tie) | 18.9 C (66.0 F) | tie | 38 years | 4 of 100 (Routine) |
| 28 April 2012 | Atenco, MX | daily high max (Tie) | 32.2 C (90.0 F) | tie | 10 years | 2 of 100 (Routine) |
Climate Trend
36 complete years, 1961 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1961 | 14.9 C | -0.70 C |
| 1962 | 15.0 C | -0.63 C |
| 1963 | 14.9 C | -0.79 C |
| 1964 | 14.8 C | -0.86 C |
| 1965 | 14.5 C | -1.11 C |
| 1966 | 14.6 C | -1.03 C |
| 1967 | 14.5 C | -1.13 C |
| 1968 | 14.4 C | -1.21 C |
| 1969 | 15.0 C | -0.63 C |
| 1970 | 14.4 C | -1.22 C |
| 1971 | 14.4 C | -1.20 C |
| 1972 | 15.0 C | -0.61 C |
| 1973 | 15.1 C | -0.50 C |
| 1974 | 14.6 C | -1.06 C |
| 1975 | 14.7 C | -0.95 C |
| 1977 | 15.2 C | -0.45 C |
| 1980 | 15.8 C | +0.14 C |
| 1981 | 15.4 C | -0.24 C |
| 1982 | 16.1 C | +0.46 C |
| 1983 | 15.9 C | +0.28 C |
| 1984 | 15.4 C | -0.20 C |
| 1985 | 15.3 C | -0.32 C |
| 1986 | 15.6 C | -0.02 C |
| 1987 | 16.0 C | +0.37 C |
| 1988 | 16.2 C | +0.54 C |
| 1989 | 15.9 C | +0.22 C |
| 1997 | 16.7 C | +1.09 C |
| 1998 | 17.5 C | +1.86 C |
| 1999 | 16.6 C | +0.92 C |
| 2002 | 16.7 C | +1.09 C |
| 2003 | 17.2 C | +1.55 C |
| 2004 | 16.6 C | +0.98 C |
| 2006 | 16.8 C | +1.16 C |
| 2008 | 16.7 C | +1.04 C |
| 2009 | 17.6 C | +1.94 C |
| 2011 | 16.9 C | +1.24 C |
The annual mean temperature here has risen by 0.6 C (0.5 to 0.7) per decade over 1961 to 2011. In Fahrenheit: 1.0 F (0.9 to 1.2) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.6 C (0.5 to 0.7) per decade | 1.0 F (0.9 to 1.2) per decade | 1961 to 2011 | 36 | Rise |
| Mean daily maximum | 0.6 C (0.5 to 0.8) per decade | 1.1 F (0.9 to 1.4) per decade | 1961 to 2011 | 36 | Rise |
| Mean daily minimum | 0.5 C (0.4 to 0.6) per decade | 1.0 F (0.8 to 1.1) per decade | 1961 to 2011 | 36 | Rise |
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 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 1998 | 32.8 C (91.0 F) | 48 |
| Coldest night (TNn) | -9.4 C (15.1 F) | 1973 | -4.4 C (24.1 F) | 48 |
| Wettest day (Rx1day) | 85.3 mm (3.4 in) | 2011 | 37.7 mm (1.5 in) | 48 |
| Wettest five days (Rx5day) | 118.6 mm (4.7 in) | 2011 | 68.2 mm (2.7 in) | 48 |
| Longest dry spell (CDD) | 135 days | 2000 | 48 days | 48 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1961 | 32.8 C (91.0 F) |
| 1962 | 32.8 C (91.0 F) |
| 1963 | 31.1 C (88.0 F) |
| 1964 | 31.7 C (89.1 F) |
| 1965 | 30.0 C (86.0 F) |
| 1966 | 31.7 C (89.1 F) |
| 1967 | 31.7 C (89.1 F) |
| 1968 | 28.9 C (84.0 F) |
| 1969 | 30.0 C (86.0 F) |
| 1970 | 32.2 C (90.0 F) |
| 1971 | 31.1 C (88.0 F) |
| 1972 | 31.7 C (89.1 F) |
| 1973 | 33.3 C (91.9 F) |
| 1974 | 31.1 C (88.0 F) |
| 1975 | 31.1 C (88.0 F) |
| 1976 | 30.0 C (86.0 F) |
| 1977 | 32.8 C (91.0 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 32.8 C (91.0 F) |
| 1980 | 31.7 C (89.1 F) |
| 1981 | 31.7 C (89.1 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 35.6 C (96.1 F) |
| 1984 | 33.9 C (93.0 F) |
| 1985 | 31.7 C (89.1 F) |
| 1986 | 32.2 C (90.0 F) |
| 1987 | 31.7 C (89.1 F) |
| 1988 | 33.9 C (93.0 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 32.8 C (91.0 F) |
| 1995 | 31.7 C (89.1 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 37.8 C (100.0 F) |
| 1999 | 33.9 C (93.0 F) |
| 2000 | 32.8 C (91.0 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 37.8 C (100.0 F) |
| 2003 | 35.0 C (95.0 F) |
| 2004 | 31.7 C (89.1 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 32.8 C (91.0 F) |
| 2007 | 32.8 C (91.0 F) |
| 2008 | 33.9 C (93.0 F) |
| 2009 | 33.9 C (93.0 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 34.4 C (93.9 F) |
| 2012 | 32.2 C (90.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1961 | -8.9 C (16.0 F) |
| 1962 | -7.8 C (18.0 F) |
| 1963 | -8.3 C (17.1 F) |
| 1964 | -5.0 C (23.0 F) |
| 1965 | -7.2 C (19.0 F) |
| 1966 | -7.8 C (18.0 F) |
| 1967 | -7.8 C (18.0 F) |
| 1968 | -4.4 C (24.1 F) |
| 1969 | -4.4 C (24.1 F) |
| 1970 | -5.0 C (23.0 F) |
| 1971 | -5.0 C (23.0 F) |
| 1972 | -6.1 C (21.0 F) |
| 1973 | -9.4 C (15.1 F) |
| 1974 | -7.2 C (19.0 F) |
| 1975 | -6.7 C (19.9 F) |
| 1976 | -9.4 C (15.1 F) |
| 1977 | -5.0 C (23.0 F) |
| 1978 | -4.4 C (24.1 F) |
| 1979 | -4.4 C (24.1 F) |
| 1980 | -5.0 C (23.0 F) |
| 1981 | -5.0 C (23.0 F) |
| 1982 | -4.4 C (24.1 F) |
| 1983 | -3.9 C (25.0 F) |
| 1984 | -4.4 C (24.1 F) |
| 1985 | -3.3 C (26.1 F) |
| 1986 | -8.3 C (17.1 F) |
| 1987 | -6.1 C (21.0 F) |
| 1988 | -7.2 C (19.0 F) |
| 1989 | -5.0 C (23.0 F) |
| 1990 | 0.0 C (32.0 F) |
| 1995 | 1.7 C (35.1 F) |
| 1996 | -4.4 C (24.1 F) |
| 1997 | -3.9 C (25.0 F) |
| 1998 | -3.9 C (25.0 F) |
| 1999 | -5.0 C (23.0 F) |
| 2000 | -2.2 C (28.0 F) |
| 2001 | 0.0 C (32.0 F) |
| 2002 | -2.2 C (28.0 F) |
| 2003 | -3.3 C (26.1 F) |
| 2004 | -3.9 C (25.0 F) |
| 2005 | -2.2 C (28.0 F) |
| 2006 | -3.3 C (26.1 F) |
| 2007 | -1.1 C (30.0 F) |
| 2008 | -1.1 C (30.0 F) |
| 2009 | -2.2 C (28.0 F) |
| 2010 | 0.6 C (33.1 F) |
| 2011 | 0.0 C (32.0 F) |
| 2012 | 1.7 C (35.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1961 | 40.9 mm (1.6 in) |
| 1962 | 34.0 mm (1.3 in) |
| 1963 | 49.3 mm (1.9 in) |
| 1964 | 73.2 mm (2.9 in) |
| 1965 | 38.1 mm (1.5 in) |
| 1966 | 35.3 mm (1.4 in) |
| 1967 | 51.3 mm (2.0 in) |
| 1968 | 38.6 mm (1.5 in) |
| 1969 | 37.8 mm (1.5 in) |
| 1970 | 34.3 mm (1.4 in) |
| 1971 | 33.3 mm (1.3 in) |
| 1972 | 35.6 mm (1.4 in) |
| 1973 | 33.8 mm (1.3 in) |
| 1974 | 24.9 mm (1.0 in) |
| 1975 | 40.1 mm (1.6 in) |
| 1976 | 37.6 mm (1.5 in) |
| 1977 | 30.7 mm (1.2 in) |
| 1978 | 40.4 mm (1.6 in) |
| 1979 | 40.4 mm (1.6 in) |
| 1980 | 29.5 mm (1.2 in) |
| 1981 | 27.2 mm (1.1 in) |
| 1982 | 28.4 mm (1.1 in) |
| 1983 | 33.5 mm (1.3 in) |
| 1984 | 33.8 mm (1.3 in) |
| 1985 | 42.4 mm (1.7 in) |
| 1986 | 51.1 mm (2.0 in) |
| 1987 | 31.5 mm (1.2 in) |
| 1988 | 75.4 mm (3.0 in) |
| 1989 | 37.3 mm (1.5 in) |
| 1990 | 17.0 mm (0.7 in) |
| 1995 | 22.4 mm (0.9 in) |
| 1996 | 62.0 mm (2.4 in) |
| 1997 | 25.9 mm (1.0 in) |
| 1998 | 59.9 mm (2.4 in) |
| 1999 | 42.9 mm (1.7 in) |
| 2000 | 34.3 mm (1.4 in) |
| 2001 | 59.9 mm (2.4 in) |
| 2002 | 58.7 mm (2.3 in) |
| 2003 | 26.4 mm (1.0 in) |
| 2004 | 40.1 mm (1.6 in) |
| 2005 | 32.3 mm (1.3 in) |
| 2006 | 23.4 mm (0.9 in) |
| 2007 | 49.8 mm (2.0 in) |
| 2008 | 37.8 mm (1.5 in) |
| 2009 | 45.5 mm (1.8 in) |
| 2010 | 45.5 mm (1.8 in) |
| 2011 | 85.3 mm (3.4 in) |
| 2012 | 25.9 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1961 | 109.9 mm (4.3 in) |
| 1962 | 82.3 mm (3.2 in) |
| 1963 | 68.7 mm (2.7 in) |
| 1964 | 76.3 mm (3.0 in) |
| 1965 | 59.8 mm (2.4 in) |
| 1966 | 69.8 mm (2.7 in) |
| 1967 | 63.5 mm (2.5 in) |
| 1968 | 85.8 mm (3.4 in) |
| 1969 | 86.7 mm (3.4 in) |
| 1970 | 51.6 mm (2.0 in) |
| 1971 | 80.3 mm (3.2 in) |
| 1972 | 68.2 mm (2.7 in) |
| 1973 | 45.3 mm (1.8 in) |
| 1974 | 44.2 mm (1.7 in) |
| 1975 | 78.0 mm (3.1 in) |
| 1976 | 55.5 mm (2.2 in) |
| 1977 | 46.2 mm (1.8 in) |
| 1978 | 74.1 mm (2.9 in) |
| 1979 | 58.7 mm (2.3 in) |
| 1980 | 45.8 mm (1.8 in) |
| 1981 | 47.1 mm (1.9 in) |
| 1982 | 51.3 mm (2.0 in) |
| 1983 | 55.1 mm (2.2 in) |
| 1984 | 84.8 mm (3.3 in) |
| 1985 | 61.5 mm (2.4 in) |
| 1986 | 68.9 mm (2.7 in) |
| 1987 | 60.2 mm (2.4 in) |
| 1988 | 102.4 mm (4.0 in) |
| 1989 | 54.5 mm (2.1 in) |
| 1990 | 45.2 mm (1.8 in) |
| 1995 | 24.7 mm (1.0 in) |
| 1996 | 96.8 mm (3.8 in) |
| 1997 | 69.9 mm (2.8 in) |
| 1998 | 105.5 mm (4.2 in) |
| 1999 | 91.4 mm (3.6 in) |
| 2000 | 51.1 mm (2.0 in) |
| 2001 | 99.1 mm (3.9 in) |
| 2002 | 80.3 mm (3.2 in) |
| 2003 | 69.1 mm (2.7 in) |
| 2004 | 68.2 mm (2.7 in) |
| 2005 | 67.4 mm (2.7 in) |
| 2006 | 44.2 mm (1.7 in) |
| 2007 | 62.7 mm (2.5 in) |
| 2008 | 50.6 mm (2.0 in) |
| 2009 | 79.3 mm (3.1 in) |
| 2010 | 83.1 mm (3.3 in) |
| 2011 | 118.6 mm (4.7 in) |
| 2012 | 60.2 mm (2.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1961 | 63 days |
| 1962 | 47 days |
| 1963 | 64 days |
| 1964 | 79 days |
| 1965 | 31 days |
| 1966 | 58 days |
| 1967 | 70 days |
| 1968 | 31 days |
| 1969 | 44 days |
| 1970 | 63 days |
| 1971 | 41 days |
| 1972 | 70 days |
| 1973 | 57 days |
| 1974 | 39 days |
| 1975 | 65 days |
| 1976 | 41 days |
| 1977 | 80 days |
| 1978 | 37 days |
| 1979 | 73 days |
| 1980 | 36 days |
| 1981 | 35 days |
| 1982 | 44 days |
| 1983 | 55 days |
| 1984 | 41 days |
| 1985 | 44 days |
| 1986 | 101 days |
| 1987 | 52 days |
| 1988 | 60 days |
| 1989 | 64 days |
| 1990 | 36 days |
| 1995 | 31 days |
| 1996 | 80 days |
| 1997 | 40 days |
| 1998 | 91 days |
| 1999 | 41 days |
| 2000 | 135 days |
| 2001 | 43 days |
| 2002 | 38 days |
| 2003 | 89 days |
| 2004 | 49 days |
| 2005 | 29 days |
| 2006 | 42 days |
| 2007 | 43 days |
| 2008 | 78 days |
| 2009 | 62 days |
| 2010 | 38 days |
| 2011 | 104 days |
| 2012 | 21 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
34 years with a frostAcross 34 years with a frost, the median last spring frost at Atenco falls on 8 March and the median first autumn frost on 3 November, which leaves a median of 238 days between them.
Fitted over all years, the growing season changes by +14.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1965 to 2008) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 8 March | n/a | 8 March | n/a | -7.5 days per decade |
| First autumn frost | 3 November | n/a | 5 November | n/a | +6.5 days per decade |
| Growing days | 238 days | n/a | 242 days | n/a | +14.0 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.
Rainfall Return Levels
42 years, 1961 to 2011A day with at least 38.1 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 97.6 mm (3.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 38.1 mm (1.5 in) | |
| 5 years | 50.0 mm (2.0 in) | |
| 10 years | 59.4 mm (2.3 in) | |
| 25 years | 73.0 mm (2.9 in) | |
| 50 years | 84.6 mm (3.3 in) | Longer than the 42 years of record |
| 100 years | 97.6 mm (3.8 in) | Longer than the 42 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, 42 years of values from 1961 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: 85.3 mm (3.4 in) in 2011; 75.4 mm (3.0 in) in 1988; 73.2 mm (2.9 in) in 1964.
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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).