Oaxtepec Weather Records (MXN00017012)
Record envelope, standing records and threshold days for Oaxtepec (MXN00017012), Mexico, with 44 years of record.
Key Facts for Oaxtepec
- Oaxtepec (MXN00017012) is a weather station in Mexico at 18.90 latitude and -98.97 longitude, 1,380 m (4,527 ft) above sea level.
- The station reports from 1970 to 2013, 44 years of record.
- 1,464 records set at Oaxtepec still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Oaxtepec set a daily record precipitation of 19.8 mm (0.8 in) on 26 May 2013.
About the Station
- Location: Mexico, 18.90 latitude, -98.97 longitude.
- Elevation: 1,380 m (4,527 ft).
- Period of record: 1970 to 2013, 44 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) | 5.6 C (42.1 F) | n/a | n/a |
| Feb | 36.7 C (98.1 F) | 6.7 C (44.1 F) | n/a | n/a |
| Mar | 35.6 C (96.1 F) | 7.8 C (46.0 F) | n/a | n/a |
| Apr | 36.1 C (97.0 F) | 10.0 C (50.0 F) | n/a | n/a |
| May | 36.7 C (98.1 F) | 12.8 C (55.0 F) | n/a | n/a |
| Jun | 35.6 C (96.1 F) | 10.6 C (51.1 F) | n/a | n/a |
| Jul | 38.9 C (102.0 F) | 10.6 C (51.1 F) | n/a | n/a |
| Aug | 35.6 C (96.1 F) | 10.6 C (51.1 F) | n/a | n/a |
| Sep | 32.8 C (91.0 F) | 10.6 C (51.1 F) | n/a | n/a |
| Oct | 33.9 C (93.0 F) | 8.9 C (48.0 F) | n/a | n/a |
| Nov | 33.3 C (91.9 F) | 5.6 C (42.1 F) | n/a | n/a |
| Dec | 33.9 C (93.0 F) | 6.7 C (44.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1970 | 62 |
| 1971 | 67 |
| 1972 | 61 |
| 1973 | 61 |
| 1974 | 50 |
| 1975 | 15 |
| 1976 | 22 |
| 1977 | 50 |
| 1978 | 39 |
| 1979 | 34 |
| 1980 | 40 |
| 1981 | 33 |
| 1983 | 57 |
| 1984 | 25 |
| 1985 | 29 |
| 1986 | 60 |
| 1987 | 97 |
| 1988 | 36 |
| 1989 | 32 |
| 1990 | 25 |
| 1991 | 34 |
| 1992 | 24 |
| 1993 | 19 |
| 1994 | 37 |
| 1995 | 77 |
| 1996 | 30 |
| 1997 | 32 |
| 1998 | 42 |
| 1999 | 34 |
| 2000 | 16 |
| 2001 | 24 |
| 2002 | 17 |
| 2003 | 13 |
| 2004 | 21 |
| 2005 | 9 |
| 2006 | 27 |
| 2007 | 12 |
| 2008 | 14 |
| 2009 | 17 |
| 2010 | 42 |
| 2011 | 14 |
| 2012 | 10 |
| 2013 | 4 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 2005-06-29 | Record daily precipitation | Record daily precipitation 104.9 mm (4.1 in) |
| 2011-06-30 | Record daily precipitation | Record daily precipitation 119.9 mm (4.7 in) |
Wettest Day of Each Month
Jun: 119.9 mm (4.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 36.8 mm (1.4 in) | 24 January 1980 |
| Feb | 61.0 mm (2.4 in) | 3 February 2010 |
| Mar | 29.0 mm (1.1 in) | 16 March 1978 |
| Apr | 49.8 mm (2.0 in) | 15 April 1972 |
| May | 52.8 mm (2.1 in) | 29 May 1997 |
| Jun | 119.9 mm (4.7 in) | 30 June 2011 |
| Jul | 85.9 mm (3.4 in) | 23 July 2006 |
| Aug | 91.9 mm (3.6 in) | 17 August 2010 |
| Sep | 91.9 mm (3.6 in) | 4 September 2006 |
| Oct | 86.9 mm (3.4 in) | 8 October 2004 |
| Nov | 35.8 mm (1.4 in) | 3 November 1995 |
| Dec | 40.9 mm (1.6 in) | 28 December 1995 |
Period of Record Coverage
1970 to 2013| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1970 | 306 | 84% | No |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 243 | 67% | No |
| 1976 | 244 | 67% | No |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1983 | 334 | 92% | Yes |
| 1984 | 335 | 92% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 334 | 92% | Yes |
| 1987 | 334 | 92% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 212 | 58% | No |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 151 | 41% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 26 May 2013 | Oaxtepec, MX | daily rain | 19.8 mm (0.8 in) | 1.0 mm (0.04 in) | 39 years | 16 of 100 (Routine) |
| 24 May 2013 | Oaxtepec, MX | daily low min (Tie) | 15.6 C (60.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 23 May 2013 | Oaxtepec, MX | daily low min | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 35 years | 17 of 100 (Routine) |
| 17 May 2013 | Oaxtepec, MX | daily rain | 16.8 mm (0.7 in) | 3.8 mm (0.15 in) | 32 years | 17 of 100 (Routine) |
| 29 March 2013 | Oaxtepec, MX | daily high min (Tie) | 17.8 C (64.0 F) | tie | 42 years | 4 of 100 (Routine) |
| 23 March 2013 | Oaxtepec, MX | daily high max (Tie) | 33.9 C (93.0 F) | tie | 22 years | 2 of 100 (Routine) |
| 17 March 2013 | Oaxtepec, MX | daily low min (Tie) | 10.0 C (50.0 F) | tie | 35 years | 3 of 100 (Routine) |
| 14 March 2013 | Oaxtepec, MX | daily rain | 3.8 mm (0.15 in) | 3.0 mm (0.12 in) | 40 years | 20 of 100 (Routine) |
| 10 March 2013 | Oaxtepec, MX | monthly high max (Tie) | 35.6 C (96.1 F) | tie | 21 years | 5 of 100 (Routine) |
| 5 March 2013 | Oaxtepec, MX | monthly low min (Tie) | 7.8 C (46.0 F) | tie | 25 years | 5 of 100 (Routine) |
| 4 March 2013 | Oaxtepec, MX | daily low min | 8.9 C (48.0 F) | 1.7 C (3.1 F) | 12 years | 16 of 100 (Routine) |
| 1 March 2013 | Oaxtepec, MX | daily high min (Tie) | 16.7 C (62.1 F) | tie | 2 years | 1 of 100 (Routine) |
| 8 February 2013 | Oaxtepec, MX | daily high max (Tie) | 30.6 C (87.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 8 February 2013 | Oaxtepec, MX | daily high min (Tie) | 15.6 C (60.1 F) | tie | 23 years | 2 of 100 (Routine) |
| 17 January 2013 | Oaxtepec, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 21 years | 2 of 100 (Routine) |
| 15 January 2013 | Oaxtepec, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 33 years | 3 of 100 (Routine) |
| 9 January 2013 | Oaxtepec, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 40 years | 4 of 100 (Routine) |
| 4 January 2013 | Oaxtepec, MX | daily high min (Tie) | 15.0 C (59.0 F) | tie | 21 years | 2 of 100 (Routine) |
| 3 January 2013 | Oaxtepec, MX | daily high min (Tie) | 13.9 C (57.0 F) | tie | 41 years | 4 of 100 (Routine) |
| 17 December 2012 | Oaxtepec, MX | daily high max (Tie) | 28.9 C (84.0 F) | tie | 42 years | 4 of 100 (Routine) |
Climate Trend
34 complete years, 1971 to 2012| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1971 | 21.5 C | -0.41 C |
| 1972 | 22.0 C | +0.08 C |
| 1973 | 21.8 C | -0.04 C |
| 1974 | 21.6 C | -0.27 C |
| 1977 | 21.7 C | -0.19 C |
| 1978 | 21.7 C | -0.14 C |
| 1979 | 22.0 C | +0.08 C |
| 1980 | 21.8 C | -0.04 C |
| 1981 | 21.6 C | -0.29 C |
| 1985 | 21.9 C | +0.06 C |
| 1988 | 22.6 C | +0.67 C |
| 1989 | 21.9 C | +0.05 C |
| 1990 | 22.1 C | +0.22 C |
| 1991 | 22.6 C | +0.71 C |
| 1992 | 21.9 C | +0.02 C |
| 1993 | 22.6 C | +0.67 C |
| 1994 | 22.9 C | +1.00 C |
| 1995 | 22.8 C | +0.90 C |
| 1996 | 21.9 C | +0.03 C |
| 1997 | 21.8 C | -0.13 C |
| 1998 | 22.5 C | +0.57 C |
| 1999 | 21.3 C | -0.57 C |
| 2000 | 21.6 C | -0.27 C |
| 2001 | 21.4 C | -0.44 C |
| 2002 | 21.9 C | -0.01 C |
| 2004 | 21.4 C | -0.52 C |
| 2005 | 22.1 C | +0.19 C |
| 2006 | 21.8 C | -0.11 C |
| 2007 | 21.7 C | -0.18 C |
| 2008 | 21.6 C | -0.29 C |
| 2009 | 21.7 C | -0.14 C |
| 2010 | 21.3 C | -0.61 C |
| 2011 | 21.6 C | -0.30 C |
| 2012 | 21.5 C | -0.40 C |
The fitted trend in annual mean temperature here over 1971 to 2012 is 0.0 C (-0.2 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.1) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.0 C (-0.2 to 0.1) per decade | -0.1 F (-0.3 to 0.1) per decade | 1971 to 2012 | 34 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.2 to 0.1) per decade | -0.2 F (-0.4 to 0.1) per decade | 1971 to 2012 | 34 | Not clearly different from zero |
| Mean daily minimum | -0.01 C (-0.12 to 0.09) per decade | -0.03 F (-0.22 to 0.17) per decade | 1971 to 2012 | 34 | 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
1970 to 2013| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.9 C (102.0 F) | 1986 | 35.0 C (95.0 F) | 43 |
| Coldest night (TNn) | 5.6 C (42.1 F) | 1973 | 7.8 C (46.0 F) | 43 |
| Wettest day (Rx1day) | 119.9 mm (4.7 in) | 2011 | 60.2 mm (2.4 in) | 43 |
| Wettest five days (Rx5day) | 229.6 mm (9.0 in) | 2009 | 121.4 mm (4.8 in) | 43 |
| Longest dry spell (CDD) | 154 days | 1998 | 74 days | 43 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1970 | 35.6 C (96.1 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 32.8 C (91.0 F) |
| 1977 | 33.9 C (93.0 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 33.9 C (93.0 F) |
| 1980 | 35.0 C (95.0 F) |
| 1981 | 35.0 C (95.0 F) |
| 1983 | 35.6 C (96.1 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 38.9 C (102.0 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 36.1 C (97.0 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 35.0 C (95.0 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 35.0 C (95.0 F) |
| 1997 | 32.8 C (91.0 F) |
| 1998 | 36.7 C (98.1 F) |
| 1999 | 35.0 C (95.0 F) |
| 2000 | 33.9 C (93.0 F) |
| 2001 | 36.7 C (98.1 F) |
| 2002 | 35.0 C (95.0 F) |
| 2003 | 35.6 C (96.1 F) |
| 2004 | 35.0 C (95.0 F) |
| 2005 | 35.6 C (96.1 F) |
| 2006 | 35.0 C (95.0 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 35.6 C (96.1 F) |
| 2009 | 33.9 C (93.0 F) |
| 2010 | 35.6 C (96.1 F) |
| 2011 | 33.9 C (93.0 F) |
| 2012 | 33.9 C (93.0 F) |
| 2013 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1970 | 7.8 C (46.0 F) |
| 1971 | 7.8 C (46.0 F) |
| 1972 | 6.7 C (44.1 F) |
| 1973 | 5.6 C (42.1 F) |
| 1974 | 8.9 C (48.0 F) |
| 1975 | 7.8 C (46.0 F) |
| 1976 | 7.8 C (46.0 F) |
| 1977 | 6.7 C (44.1 F) |
| 1978 | 8.9 C (48.0 F) |
| 1979 | 5.6 C (42.1 F) |
| 1980 | 7.8 C (46.0 F) |
| 1981 | 7.8 C (46.0 F) |
| 1983 | 6.7 C (44.1 F) |
| 1984 | 5.6 C (42.1 F) |
| 1985 | 10.0 C (50.0 F) |
| 1986 | 5.6 C (42.1 F) |
| 1987 | 7.8 C (46.0 F) |
| 1988 | 6.7 C (44.1 F) |
| 1989 | 8.9 C (48.0 F) |
| 1990 | 8.9 C (48.0 F) |
| 1991 | 10.0 C (50.0 F) |
| 1992 | 7.8 C (46.0 F) |
| 1993 | 10.0 C (50.0 F) |
| 1994 | 7.8 C (46.0 F) |
| 1995 | 8.9 C (48.0 F) |
| 1996 | 7.8 C (46.0 F) |
| 1997 | 8.9 C (48.0 F) |
| 1998 | 8.9 C (48.0 F) |
| 1999 | 6.7 C (44.1 F) |
| 2000 | 7.8 C (46.0 F) |
| 2001 | 8.9 C (48.0 F) |
| 2002 | 5.6 C (42.1 F) |
| 2003 | 8.9 C (48.0 F) |
| 2004 | 7.8 C (46.0 F) |
| 2005 | 7.8 C (46.0 F) |
| 2006 | 5.6 C (42.1 F) |
| 2007 | 10.0 C (50.0 F) |
| 2008 | 7.8 C (46.0 F) |
| 2009 | 8.9 C (48.0 F) |
| 2010 | 6.7 C (44.1 F) |
| 2011 | 8.9 C (48.0 F) |
| 2012 | 7.8 C (46.0 F) |
| 2013 | 7.8 C (46.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1970 | 60.2 mm (2.4 in) |
| 1971 | 51.8 mm (2.0 in) |
| 1972 | 49.8 mm (2.0 in) |
| 1973 | 54.9 mm (2.2 in) |
| 1974 | 52.3 mm (2.1 in) |
| 1975 | 84.8 mm (3.3 in) |
| 1976 | 74.9 mm (2.9 in) |
| 1977 | 57.9 mm (2.3 in) |
| 1978 | 62.0 mm (2.4 in) |
| 1979 | 47.0 mm (1.9 in) |
| 1980 | 51.8 mm (2.0 in) |
| 1981 | 69.9 mm (2.8 in) |
| 1983 | 58.9 mm (2.3 in) |
| 1984 | 50.8 mm (2.0 in) |
| 1985 | 72.4 mm (2.9 in) |
| 1986 | 48.8 mm (1.9 in) |
| 1987 | 57.9 mm (2.3 in) |
| 1988 | 67.8 mm (2.7 in) |
| 1989 | 45.0 mm (1.8 in) |
| 1990 | 65.8 mm (2.6 in) |
| 1991 | 50.8 mm (2.0 in) |
| 1992 | 58.9 mm (2.3 in) |
| 1993 | 61.0 mm (2.4 in) |
| 1994 | 37.8 mm (1.5 in) |
| 1995 | 89.9 mm (3.5 in) |
| 1996 | 74.9 mm (2.9 in) |
| 1997 | 98.8 mm (3.9 in) |
| 1998 | 63.0 mm (2.5 in) |
| 1999 | 66.8 mm (2.6 in) |
| 2000 | 59.9 mm (2.4 in) |
| 2001 | 73.9 mm (2.9 in) |
| 2002 | 51.8 mm (2.0 in) |
| 2003 | 49.3 mm (1.9 in) |
| 2004 | 86.9 mm (3.4 in) |
| 2005 | 104.9 mm (4.1 in) |
| 2006 | 91.9 mm (3.6 in) |
| 2007 | 88.9 mm (3.5 in) |
| 2008 | 52.8 mm (2.1 in) |
| 2009 | 63.0 mm (2.5 in) |
| 2010 | 91.9 mm (3.6 in) |
| 2011 | 119.9 mm (4.7 in) |
| 2012 | 45.0 mm (1.8 in) |
| 2013 | 19.8 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1970 | 93.2 mm (3.7 in) |
| 1971 | 103.3 mm (4.1 in) |
| 1972 | 97.6 mm (3.8 in) |
| 1973 | 136.7 mm (5.4 in) |
| 1974 | 121.9 mm (4.8 in) |
| 1975 | 120.4 mm (4.7 in) |
| 1976 | 159.7 mm (6.3 in) |
| 1977 | 113.8 mm (4.5 in) |
| 1978 | 99.9 mm (3.9 in) |
| 1979 | 117.2 mm (4.6 in) |
| 1980 | 125.2 mm (4.9 in) |
| 1981 | 114.4 mm (4.5 in) |
| 1983 | 127.3 mm (5.0 in) |
| 1984 | 164.5 mm (6.5 in) |
| 1985 | 114.6 mm (4.5 in) |
| 1986 | 104.3 mm (4.1 in) |
| 1987 | 96.5 mm (3.8 in) |
| 1988 | 146.3 mm (5.8 in) |
| 1989 | 78.2 mm (3.1 in) |
| 1990 | 148.6 mm (5.9 in) |
| 1991 | 113.8 mm (4.5 in) |
| 1992 | 121.6 mm (4.8 in) |
| 1993 | 119.7 mm (4.7 in) |
| 1994 | 73.1 mm (2.9 in) |
| 1995 | 227.9 mm (9.0 in) |
| 1996 | 155.4 mm (6.1 in) |
| 1997 | 152.1 mm (6.0 in) |
| 1998 | 189.4 mm (7.5 in) |
| 1999 | 121.4 mm (4.8 in) |
| 2000 | 80.2 mm (3.2 in) |
| 2001 | 126.6 mm (5.0 in) |
| 2002 | 115.2 mm (4.5 in) |
| 2003 | 76.7 mm (3.0 in) |
| 2004 | 148.4 mm (5.8 in) |
| 2005 | 117.1 mm (4.6 in) |
| 2006 | 134.4 mm (5.3 in) |
| 2007 | 143.2 mm (5.6 in) |
| 2008 | 115.5 mm (4.5 in) |
| 2009 | 229.6 mm (9.0 in) |
| 2010 | 150.6 mm (5.9 in) |
| 2011 | 165.4 mm (6.5 in) |
| 2012 | 145.2 mm (5.7 in) |
| 2013 | 47.0 mm (1.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1970 | 74 days |
| 1971 | 77 days |
| 1972 | 36 days |
| 1973 | 57 days |
| 1974 | 55 days |
| 1975 | 107 days |
| 1976 | 31 days |
| 1977 | 88 days |
| 1978 | 63 days |
| 1979 | 49 days |
| 1980 | 83 days |
| 1981 | 66 days |
| 1983 | 68 days |
| 1984 | 88 days |
| 1985 | 38 days |
| 1986 | 59 days |
| 1987 | 86 days |
| 1988 | 82 days |
| 1989 | 81 days |
| 1990 | 62 days |
| 1991 | 86 days |
| 1992 | 71 days |
| 1993 | 59 days |
| 1994 | 108 days |
| 1995 | 82 days |
| 1996 | 68 days |
| 1997 | 96 days |
| 1998 | 154 days |
| 1999 | 79 days |
| 2000 | 126 days |
| 2001 | 68 days |
| 2002 | 85 days |
| 2003 | 88 days |
| 2004 | 66 days |
| 2005 | 111 days |
| 2006 | 120 days |
| 2007 | 59 days |
| 2008 | 116 days |
| 2009 | 48 days |
| 2010 | 58 days |
| 2011 | 104 days |
| 2012 | 61 days |
| 2013 | 72 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
38 years, 1971 to 2012A day with at least 61.2 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 137.7 mm (5.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 61.2 mm (2.4 in) | |
| 5 years | 77.7 mm (3.1 in) | |
| 10 years | 90.1 mm (3.5 in) | |
| 25 years | 107.6 mm (4.2 in) | |
| 50 years | 122.0 mm (4.8 in) | Longer than the 38 years of record |
| 100 years | 137.7 mm (5.4 in) | Longer than the 38 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, 38 years of values from 1971 to 2012.
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: 119.9 mm (4.7 in) in 2011; 104.9 mm (4.1 in) in 2005; 98.8 mm (3.9 in) in 1997.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).