Ejido Valle de la Trinidad Weather Records (MXN00002093)
Record envelope, standing records and threshold days for Ejido Valle de la Trinidad (MXN00002093), Mexico, with 39 years of record.
Key Facts for Ejido Valle de la Trinidad
- Ejido Valle de la Trinidad (MXN00002093) is a weather station in Mexico at 32.35 latitude and -115.73 longitude, 780 m (2,559 ft) above sea level.
- The station reports from 1974 to 2012, 39 years of record.
- 1,464 records set at Ejido Valle de la Trinidad still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Ejido Valle de la Trinidad tied a daily record low maximum temperature of 18.9 C (66.0 F) on 11 October 2012.
About the Station
- Location: Mexico, 32.35 latitude, -115.73 longitude.
- Elevation: 780 m (2,559 ft).
- Period of record: 1974 to 2012, 39 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 | 30.0 C (86.0 F) | -13.3 C (8.1 F) | n/a | n/a |
| Feb | 31.7 C (89.1 F) | -13.3 C (8.1 F) | n/a | n/a |
| Mar | 35.0 C (95.0 F) | -10.0 C (14.0 F) | n/a | n/a |
| Apr | 35.6 C (96.1 F) | -9.4 C (15.1 F) | n/a | n/a |
| May | 40.0 C (104.0 F) | -7.2 C (19.0 F) | n/a | n/a |
| Jun | 46.7 C (116.1 F) | -4.4 C (24.1 F) | n/a | n/a |
| Jul | 43.9 C (111.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Aug | 42.8 C (109.0 F) | 0.6 C (33.1 F) | n/a | n/a |
| Sep | 43.9 C (111.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| Oct | 40.6 C (105.1 F) | -10.0 C (14.0 F) | n/a | n/a |
| Nov | 36.7 C (98.1 F) | -12.2 C (10.0 F) | n/a | n/a |
| Dec | 31.7 C (89.1 F) | -14.4 C (6.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1974 | 7 |
| 1975 | 22 |
| 1976 | 32 |
| 1977 | 36 |
| 1978 | 44 |
| 1979 | 49 |
| 1980 | 56 |
| 1981 | 21 |
| 1982 | 27 |
| 1983 | 26 |
| 1984 | 26 |
| 1985 | 16 |
| 1986 | 20 |
| 1987 | 34 |
| 1988 | 22 |
| 1989 | 52 |
| 1990 | 48 |
| 1991 | 40 |
| 1992 | 72 |
| 1993 | 41 |
| 1994 | 58 |
| 1995 | 81 |
| 1996 | 61 |
| 1997 | 78 |
| 1998 | 100 |
| 1999 | 100 |
| 2000 | 14 |
| 2001 | 24 |
| 2002 | 26 |
| 2003 | 28 |
| 2004 | 18 |
| 2005 | 18 |
| 2006 | 32 |
| 2007 | 31 |
| 2008 | 20 |
| 2009 | 18 |
| 2010 | 28 |
| 2011 | 19 |
| 2012 | 19 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2010-01-21 | Record daily precipitation | Record daily precipitation 93.0 mm (3.7 in) |
Wettest Day of Each Month
Jan: 93.0 mm (3.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 93.0 mm (3.7 in) | 21 January 2010 |
| Feb | 50.8 mm (2.0 in) | 28 February 1991 |
| Mar | 39.9 mm (1.6 in) | 1 March 1978 |
| Apr | 26.2 mm (1.0 in) | 5 April 1984 |
| May | 8.9 mm (0.35 in) | 12 May 1977 |
| Jun | 17.8 mm (0.7 in) | 5 June 1987 |
| Jul | 34.8 mm (1.4 in) | 13 July 1984 |
| Aug | 57.9 mm (2.3 in) | 8 August 1983 |
| Sep | 49.0 mm (1.9 in) | 2 September 2006 |
| Oct | 47.2 mm (1.9 in) | 31 October 1987 |
| Nov | 33.3 mm (1.3 in) | 30 November 1982 |
| Dec | 46.0 mm (1.8 in) | 12 December 2011 |
Period of Record Coverage
1974 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1974 | 153 | 42% | No |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 245 | 67% | No |
| 1986 | 362 | 99% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 352 | 96% | Yes |
| 1992 | 331 | 90% | Yes |
| 1993 | 283 | 78% | No |
| 1994 | 350 | 96% | Yes |
| 1995 | 342 | 94% | Yes |
| 1996 | 357 | 98% | Yes |
| 1997 | 362 | 99% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 346 | 95% | Yes |
| 2001 | 363 | 99% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 335 | 92% | Yes |
| 2005 | 360 | 99% | Yes |
| 2006 | 359 | 98% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 304 | 83% | No |
| 2009 | 364 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 305 | 83% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2012 | Ejido Valle de la Trinidad, MX | daily low max (Tie) | 18.9 C (66.0 F) | tie | 12 years | 1 of 100 (Routine) |
| 11 September 2012 | Ejido Valle de la Trinidad, MX | daily high min | 18.9 C (66.0 F) | 2.2 C (4.0 F) | 29 years | 15 of 100 (Routine) |
| 10 September 2012 | Ejido Valle de la Trinidad, MX | daily high min | 20.0 C (68.0 F) | 2.2 C (4.0 F) | 36 years | 17 of 100 (Routine) |
| 9 September 2012 | Ejido Valle de la Trinidad, MX | daily high min | 21.7 C (71.1 F) | 1.1 C (2.0 F) | 17 years | 10 of 100 (Routine) |
| 19 August 2012 | Ejido Valle de la Trinidad, MX | daily high min (Tie) | 20.0 C (68.0 F) | tie | 26 years | 2 of 100 (Routine) |
| 18 August 2012 | Ejido Valle de la Trinidad, MX | daily high min | 20.6 C (69.1 F) | 1.7 C (3.1 F) | 28 years | 15 of 100 (Routine) |
| 18 August 2012 | Ejido Valle de la Trinidad, MX | daily rain | 13.2 mm (0.5 in) | 3.8 mm (0.15 in) | 29 years | 14 of 100 (Routine) |
| 17 August 2012 | Ejido Valle de la Trinidad, MX | daily high min | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 35 years | 15 of 100 (Routine) |
| 14 August 2012 | Ejido Valle de la Trinidad, MX | daily high max | 40.0 C (104.0 F) | 1.1 C (2.0 F) | 35 years | 15 of 100 (Routine) |
| 13 August 2012 | Ejido Valle de la Trinidad, MX | daily rain | 6.9 mm (0.27 in) | 6.6 mm (0.26 in) | 4 years | 10 of 100 (Routine) |
| 13 August 2012 | Ejido Valle de la Trinidad, MX | daily high max (Tie) | 37.8 C (100.0 F) | tie | 35 years | 3 of 100 (Routine) |
| 17 July 2012 | Ejido Valle de la Trinidad, MX | daily low min (Tie) | 5.0 C (41.0 F) | tie | 29 years | 2 of 100 (Routine) |
| 12 July 2012 | Ejido Valle de la Trinidad, MX | monthly high min (Tie) | 22.8 C (73.0 F) | tie | 16 years | 4 of 100 (Routine) |
| 11 July 2012 | Ejido Valle de la Trinidad, MX | daily high max (Tie) | 38.9 C (102.0 F) | tie | 33 years | 3 of 100 (Routine) |
| 10 July 2012 | Ejido Valle de la Trinidad, MX | daily high max (Tie) | 40.6 C (105.1 F) | tie | 9 years | 1 of 100 (Routine) |
| 1 June 2012 | Ejido Valle de la Trinidad, MX | daily high max | 37.8 C (100.0 F) | 2.2 C (4.0 F) | 6 years | 7 of 100 (Routine) |
| 25 May 2012 | Ejido Valle de la Trinidad, MX | daily high min (Tie) | 10.6 C (51.1 F) | tie | 18 years | 2 of 100 (Routine) |
| 17 May 2012 | Ejido Valle de la Trinidad, MX | daily high max | 36.7 C (98.1 F) | 1.7 C (3.1 F) | 6 years | 6 of 100 (Routine) |
| 16 May 2012 | Ejido Valle de la Trinidad, MX | daily high max | 35.6 C (96.1 F) | 1.7 C (3.1 F) | 15 years | 9 of 100 (Routine) |
| 2 May 2012 | Ejido Valle de la Trinidad, MX | daily high min (Tie) | 8.9 C (48.0 F) | tie | 17 years | 2 of 100 (Routine) |
Climate Trend
32 complete years, 1975 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1975 | 14.3 C | -0.72 C |
| 1976 | 14.7 C | -0.33 C |
| 1977 | 15.3 C | +0.33 C |
| 1978 | 15.5 C | +0.50 C |
| 1979 | 15.1 C | +0.15 C |
| 1980 | 15.7 C | +0.68 C |
| 1981 | 15.8 C | +0.85 C |
| 1982 | 14.2 C | -0.81 C |
| 1983 | 14.8 C | -0.21 C |
| 1984 | 15.1 C | +0.08 C |
| 1986 | 15.9 C | +0.91 C |
| 1987 | 15.6 C | +0.57 C |
| 1988 | 15.6 C | +0.65 C |
| 1989 | 16.3 C | +1.31 C |
| 1990 | 16.0 C | +0.97 C |
| 1991 | 14.9 C | -0.11 C |
| 1992 | 13.2 C | -1.80 C |
| 1994 | 13.2 C | -1.83 C |
| 1995 | 15.0 C | +0.04 C |
| 1996 | 13.7 C | -1.25 C |
| 1997 | 12.7 C | -2.25 C |
| 1998 | 11.4 C | -3.55 C |
| 1999 | 12.7 C | -2.31 C |
| 2001 | 15.9 C | +0.89 C |
| 2002 | 15.6 C | +0.56 C |
| 2003 | 16.4 C | +1.45 C |
| 2005 | 16.0 C | +1.04 C |
| 2006 | 16.2 C | +1.21 C |
| 2007 | 16.3 C | +1.28 C |
| 2009 | 16.0 C | +0.97 C |
| 2010 | 15.3 C | +0.35 C |
| 2011 | 15.5 C | +0.47 C |
The fitted trend in annual mean temperature here over 1975 to 2011 is 0.1 C (-0.3 to 0.5) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.6 to 0.9) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (-0.3 to 0.5) per decade | 0.2 F (-0.6 to 0.9) per decade | 1975 to 2011 | 32 | Not clearly different from zero |
| Mean daily maximum | 0.1 C (-0.4 to 0.7) per decade | 0.2 F (-0.8 to 1.3) per decade | 1975 to 2011 | 32 | Not clearly different from zero |
| Mean daily minimum | 0.04 C (-0.52 to 0.61) per decade | 0.1 F (-0.9 to 1.1) per decade | 1975 to 2011 | 32 | 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
1974 to 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.7 C (116.1 F) | 1990 | 40.6 C (105.1 F) | 39 |
| Coldest night (TNn) | -14.4 C (6.1 F) | 1998 | -8.3 C (17.1 F) | 39 |
| Wettest day (Rx1day) | 93.0 mm (3.7 in) | 2010 | 38.4 mm (1.5 in) | 39 |
| Wettest five days (Rx5day) | 239.1 mm (9.4 in) | 2010 | 50.1 mm (2.0 in) | 39 |
| Longest dry spell (CDD) | 235 days | 2002 | 94 days | 39 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1974 | 37.8 C (100.0 F) |
| 1975 | 40.6 C (105.1 F) |
| 1976 | 40.6 C (105.1 F) |
| 1977 | 38.9 C (102.0 F) |
| 1978 | 42.8 C (109.0 F) |
| 1979 | 42.8 C (109.0 F) |
| 1980 | 42.8 C (109.0 F) |
| 1981 | 40.0 C (104.0 F) |
| 1982 | 40.6 C (105.1 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 40.0 C (104.0 F) |
| 1985 | 41.7 C (107.1 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 40.0 C (104.0 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 43.9 C (111.0 F) |
| 1990 | 46.7 C (116.1 F) |
| 1991 | 40.0 C (104.0 F) |
| 1992 | 40.0 C (104.0 F) |
| 1993 | 38.9 C (102.0 F) |
| 1994 | 41.7 C (107.1 F) |
| 1995 | 42.8 C (109.0 F) |
| 1996 | 40.6 C (105.1 F) |
| 1997 | 40.6 C (105.1 F) |
| 1998 | 42.8 C (109.0 F) |
| 1999 | 38.9 C (102.0 F) |
| 2000 | 40.6 C (105.1 F) |
| 2001 | 40.0 C (104.0 F) |
| 2002 | 41.7 C (107.1 F) |
| 2003 | 40.6 C (105.1 F) |
| 2004 | 40.6 C (105.1 F) |
| 2005 | 40.6 C (105.1 F) |
| 2006 | 41.7 C (107.1 F) |
| 2007 | 42.8 C (109.0 F) |
| 2008 | 41.7 C (107.1 F) |
| 2009 | 41.7 C (107.1 F) |
| 2010 | 40.6 C (105.1 F) |
| 2011 | 40.6 C (105.1 F) |
| 2012 | 40.6 C (105.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1974 | -5.0 C (23.0 F) |
| 1975 | -8.3 C (17.1 F) |
| 1976 | -9.4 C (15.1 F) |
| 1977 | -7.2 C (19.0 F) |
| 1978 | -8.3 C (17.1 F) |
| 1979 | -10.0 C (14.0 F) |
| 1980 | -8.3 C (17.1 F) |
| 1981 | -8.3 C (17.1 F) |
| 1982 | -5.0 C (23.0 F) |
| 1983 | -7.2 C (19.0 F) |
| 1984 | -7.2 C (19.0 F) |
| 1985 | -6.1 C (21.0 F) |
| 1986 | -6.1 C (21.0 F) |
| 1987 | -10.0 C (14.0 F) |
| 1988 | -8.3 C (17.1 F) |
| 1989 | -8.3 C (17.1 F) |
| 1990 | -9.4 C (15.1 F) |
| 1991 | -7.2 C (19.0 F) |
| 1992 | -7.2 C (19.0 F) |
| 1993 | -6.1 C (21.0 F) |
| 1994 | -8.3 C (17.1 F) |
| 1995 | -9.4 C (15.1 F) |
| 1996 | -12.2 C (10.0 F) |
| 1997 | -13.3 C (8.1 F) |
| 1998 | -14.4 C (6.1 F) |
| 1999 | -13.3 C (8.1 F) |
| 2000 | -5.0 C (23.0 F) |
| 2001 | -6.1 C (21.0 F) |
| 2002 | -11.1 C (12.0 F) |
| 2003 | -5.0 C (23.0 F) |
| 2004 | -7.2 C (19.0 F) |
| 2005 | -8.3 C (17.1 F) |
| 2006 | -9.4 C (15.1 F) |
| 2007 | -11.1 C (12.0 F) |
| 2008 | -5.0 C (23.0 F) |
| 2009 | -5.0 C (23.0 F) |
| 2010 | -7.2 C (19.0 F) |
| 2011 | -7.2 C (19.0 F) |
| 2012 | -6.1 C (21.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1974 | 10.4 mm (0.4 in) |
| 1975 | 21.6 mm (0.9 in) |
| 1976 | 38.4 mm (1.5 in) |
| 1977 | 47.5 mm (1.9 in) |
| 1978 | 45.0 mm (1.8 in) |
| 1979 | 71.9 mm (2.8 in) |
| 1980 | 39.4 mm (1.6 in) |
| 1981 | 21.1 mm (0.8 in) |
| 1982 | 33.3 mm (1.3 in) |
| 1983 | 57.9 mm (2.3 in) |
| 1984 | 34.8 mm (1.4 in) |
| 1985 | 32.8 mm (1.3 in) |
| 1986 | 39.9 mm (1.6 in) |
| 1987 | 47.2 mm (1.9 in) |
| 1988 | 49.8 mm (2.0 in) |
| 1989 | 14.0 mm (0.6 in) |
| 1990 | 17.3 mm (0.7 in) |
| 1991 | 50.8 mm (2.0 in) |
| 1992 | 38.9 mm (1.5 in) |
| 1993 | 52.8 mm (2.1 in) |
| 1994 | 45.0 mm (1.8 in) |
| 1995 | 38.4 mm (1.5 in) |
| 1996 | 27.4 mm (1.1 in) |
| 1997 | 46.0 mm (1.8 in) |
| 1998 | 45.0 mm (1.8 in) |
| 1999 | 16.8 mm (0.7 in) |
| 2000 | 18.3 mm (0.7 in) |
| 2001 | 24.4 mm (1.0 in) |
| 2002 | 13.0 mm (0.5 in) |
| 2003 | 24.4 mm (1.0 in) |
| 2004 | 44.5 mm (1.8 in) |
| 2005 | 29.7 mm (1.2 in) |
| 2006 | 49.0 mm (1.9 in) |
| 2007 | 33.0 mm (1.3 in) |
| 2008 | 41.9 mm (1.6 in) |
| 2009 | 22.4 mm (0.9 in) |
| 2010 | 93.0 mm (3.7 in) |
| 2011 | 46.0 mm (1.8 in) |
| 2012 | 29.5 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1974 | 21.9 mm (0.9 in) |
| 1975 | 40.7 mm (1.6 in) |
| 1976 | 65.2 mm (2.6 in) |
| 1977 | 74.4 mm (2.9 in) |
| 1978 | 121.7 mm (4.8 in) |
| 1979 | 95.3 mm (3.8 in) |
| 1980 | 101.4 mm (4.0 in) |
| 1981 | 67.2 mm (2.6 in) |
| 1982 | 64.8 mm (2.6 in) |
| 1983 | 76.8 mm (3.0 in) |
| 1984 | 48.5 mm (1.9 in) |
| 1985 | 41.4 mm (1.6 in) |
| 1986 | 44.8 mm (1.8 in) |
| 1987 | 61.4 mm (2.4 in) |
| 1988 | 50.6 mm (2.0 in) |
| 1989 | 21.1 mm (0.8 in) |
| 1990 | 30.3 mm (1.2 in) |
| 1991 | 98.0 mm (3.9 in) |
| 1992 | 81.9 mm (3.2 in) |
| 1993 | 158.3 mm (6.2 in) |
| 1994 | 58.8 mm (2.3 in) |
| 1995 | 48.3 mm (1.9 in) |
| 1996 | 38.9 mm (1.5 in) |
| 1997 | 46.0 mm (1.8 in) |
| 1998 | 63.9 mm (2.5 in) |
| 1999 | 22.3 mm (0.9 in) |
| 2000 | 19.4 mm (0.8 in) |
| 2001 | 35.1 mm (1.4 in) |
| 2002 | 17.6 mm (0.7 in) |
| 2003 | 31.3 mm (1.2 in) |
| 2004 | 50.9 mm (2.0 in) |
| 2005 | 50.5 mm (2.0 in) |
| 2006 | 49.8 mm (2.0 in) |
| 2007 | 33.0 mm (1.3 in) |
| 2008 | 71.3 mm (2.8 in) |
| 2009 | 24.4 mm (1.0 in) |
| 2010 | 239.1 mm (9.4 in) |
| 2011 | 50.1 mm (2.0 in) |
| 2012 | 37.6 mm (1.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1974 | 55 days |
| 1975 | 99 days |
| 1976 | 98 days |
| 1977 | 79 days |
| 1978 | 99 days |
| 1979 | 52 days |
| 1980 | 143 days |
| 1981 | 139 days |
| 1982 | 79 days |
| 1983 | 97 days |
| 1984 | 94 days |
| 1985 | 71 days |
| 1986 | 103 days |
| 1987 | 105 days |
| 1988 | 86 days |
| 1989 | 123 days |
| 1990 | 74 days |
| 1991 | 100 days |
| 1992 | 71 days |
| 1993 | 56 days |
| 1994 | 102 days |
| 1995 | 86 days |
| 1996 | 77 days |
| 1997 | 57 days |
| 1998 | 88 days |
| 1999 | 171 days |
| 2000 | 158 days |
| 2001 | 73 days |
| 2002 | 235 days |
| 2003 | 94 days |
| 2004 | 74 days |
| 2005 | 125 days |
| 2006 | 115 days |
| 2007 | 131 days |
| 2008 | 87 days |
| 2009 | 98 days |
| 2010 | 83 days |
| 2011 | 60 days |
| 2012 | 101 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
32 years with a frostAcross 32 years with a frost, the median last spring frost at Ejido Valle de la Trinidad falls on 11 May and the median first autumn frost on 29 October, which leaves a median of 168 days between them.
Fitted over all years, the growing season changes by +2.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1977 to 2011) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 11 May | n/a | 11 May | n/a | 0.0 days per decade |
| First autumn frost | 29 October | n/a | 29 October | n/a | +2.0 days per decade |
| Growing days | 168 days | n/a | 168 days | n/a | +2.0 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
36 years, 1975 to 2011A day with at least 36.3 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 80.6 mm (3.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 36.3 mm (1.4 in) | |
| 5 years | 50.6 mm (2.0 in) | |
| 10 years | 59.0 mm (2.3 in) | |
| 25 years | 68.5 mm (2.7 in) | |
| 50 years | 74.9 mm (2.9 in) | Longer than the 36 years of record |
| 100 years | 80.6 mm (3.2 in) | Longer than the 36 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, 36 years of values from 1975 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: 93.0 mm (3.7 in) in 2010; 71.9 mm (2.8 in) in 1979; 57.9 mm (2.3 in) in 1983.
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).