Alcholoya Weather Records (MXN00013061)
Record envelope, standing records and threshold days for Alcholoya (MXN00013061), Mexico, with 51 years of record.
Key Facts for Alcholoya
- Alcholoya (MXN00013061) is a weather station in Mexico at 20.22 latitude and -98.43 longitude, 2,112 m (6,929 ft) above sea level.
- The station reports from 1962 to 2012, 51 years of record.
- 1,464 records set at Alcholoya still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Alcholoya tied a daily record high minimum temperature of 12.8 C (55.0 F) on 12 September 2012.
About the Station
- Location: Mexico, 20.22 latitude, -98.43 longitude.
- Elevation: 2,112 m (6,929 ft).
- Period of record: 1962 to 2012, 51 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) | -9.4 C (15.1 F) | n/a | n/a |
| Feb | 30.6 C (87.1 F) | -8.9 C (16.0 F) | n/a | n/a |
| Mar | 35.0 C (95.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Apr | 37.2 C (99.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| May | 35.6 C (96.1 F) | 0.0 C (32.0 F) | n/a | n/a |
| Jun | 37.8 C (100.0 F) | 2.2 C (36.0 F) | n/a | n/a |
| Jul | 30.6 C (87.1 F) | 1.1 C (34.0 F) | n/a | n/a |
| Aug | 30.6 C (87.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Sep | 31.7 C (89.1 F) | -1.7 C (28.9 F) | n/a | n/a |
| Oct | 35.0 C (95.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Nov | 35.0 C (95.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Dec | 33.9 C (93.0 F) | -6.1 C (21.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1962 | 34 |
| 1963 | 34 |
| 1964 | 19 |
| 1965 | 17 |
| 1966 | 38 |
| 1967 | 33 |
| 1968 | 28 |
| 1969 | 31 |
| 1970 | 39 |
| 1971 | 29 |
| 1972 | 17 |
| 1973 | 29 |
| 1974 | 25 |
| 1975 | 29 |
| 1976 | 38 |
| 1977 | 24 |
| 1978 | 25 |
| 1979 | 41 |
| 1980 | 22 |
| 1981 | 19 |
| 1982 | 16 |
| 1983 | 14 |
| 1984 | 25 |
| 1985 | 9 |
| 1986 | 30 |
| 1987 | 79 |
| 1988 | 80 |
| 1989 | 51 |
| 1990 | 40 |
| 1991 | 23 |
| 1992 | 21 |
| 1993 | 102 |
| 1994 | 7 |
| 1995 | 27 |
| 1996 | 2 |
| 1997 | 54 |
| 1998 | 17 |
| 1999 | 38 |
| 2000 | 39 |
| 2001 | 35 |
| 2002 | 13 |
| 2003 | 2 |
| 2004 | 2 |
| 2005 | 7 |
| 2006 | 18 |
| 2007 | 35 |
| 2008 | 12 |
| 2009 | 28 |
| 2010 | 34 |
| 2011 | 18 |
| 2012 | 15 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1993-04-20 | Record high minimum temperature | Record high minimum temperature 17.8 C (64.0 F) |
| 1993-04-29 | Record high minimum temperature | Record high minimum temperature 18.9 C (66.0 F) |
| 1999-10-04 | Record daily precipitation | Record daily precipitation 95.8 mm (3.8 in) |
| 1999-10-05 | Record daily precipitation | Record daily precipitation 97.8 mm (3.9 in) |
| 2005-06-05 | Record high maximum temperature | Record high maximum temperature 37.8 C (100.0 F) |
| 2011-06-30 | Record daily precipitation | Record daily precipitation 104.9 mm (4.1 in) |
Wettest Day of Each Month
Jun: 104.9 mm (4.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 32.8 mm (1.3 in) | 10 January 1967 |
| Feb | 30.0 mm (1.2 in) | 3 February 2007 |
| Mar | 37.8 mm (1.5 in) | 11 March 2007 |
| Apr | 47.0 mm (1.9 in) | 12 April 2010 |
| May | 38.9 mm (1.5 in) | 31 May 1969 |
| Jun | 104.9 mm (4.1 in) | 30 June 2011 |
| Jul | 88.9 mm (3.5 in) | 4 July 1974 |
| Aug | 89.9 mm (3.5 in) | 22 August 2007 |
| Sep | 74.9 mm (2.9 in) | 20 September 1974 |
| Oct | 97.8 mm (3.9 in) | 5 October 1999 |
| Nov | 30.0 mm (1.2 in) | 26 November 2011 |
| Dec | 19.8 mm (0.8 in) | 7 December 1989 |
Period of Record Coverage
1962 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1962 | 266 | 73% | No |
| 1963 | 358 | 98% | Yes |
| 1964 | 319 | 87% | No |
| 1965 | 355 | 97% | Yes |
| 1966 | 327 | 90% | No |
| 1967 | 358 | 98% | Yes |
| 1968 | 358 | 98% | Yes |
| 1969 | 355 | 97% | Yes |
| 1970 | 354 | 97% | Yes |
| 1971 | 358 | 98% | Yes |
| 1972 | 327 | 89% | No |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 359 | 98% | Yes |
| 1984 | 335 | 92% | Yes |
| 1985 | 334 | 92% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 360 | 99% | Yes |
| 1991 | 118 | 32% | No |
| 1992 | 359 | 98% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 215 | 59% | No |
| 1995 | 364 | 100% | Yes |
| 1996 | 351 | 96% | Yes |
| 1997 | 334 | 92% | Yes |
| 1998 | 293 | 80% | No |
| 1999 | 365 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 335 | 92% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 359 | 98% | 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 | 274 | 75% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 September 2012 | Alcholoya, MX | daily high min (Tie) | 12.8 C (55.0 F) | tie | 46 years | 4 of 100 (Routine) |
| 23 August 2012 | Alcholoya, MX | daily rain | 17.8 mm (0.7 in) | 3.1 mm (0.12 in) | 7 years | 10 of 100 (Routine) |
| 17 August 2012 | Alcholoya, MX | daily low max | 16.7 C (62.1 F) | 2.2 C (4.0 F) | 36 years | 23 of 100 (Routine) |
| 12 August 2012 | Alcholoya, MX | daily low max | 15.0 C (59.0 F) | 2.8 C (5.0 F) | 26 years | 22 of 100 (Routine) |
| 11 August 2012 | Alcholoya, MX | daily low max (Tie) | 15.6 C (60.1 F) | tie | 19 years | 2 of 100 (Routine) |
| 10 August 2012 | Alcholoya, MX | daily low max | 15.0 C (59.0 F) | 2.8 C (5.0 F) | 20 years | 21 of 100 (Routine) |
| 29 July 2012 | Alcholoya, MX | daily low max | 17.8 C (64.0 F) | 0.5 C (0.9 F) | 27 years | 14 of 100 (Routine) |
| 26 July 2012 | Alcholoya, MX | daily high min (Tie) | 12.8 C (55.0 F) | tie | 49 years | 4 of 100 (Routine) |
| 20 July 2012 | Alcholoya, MX | daily low max (Tie) | 17.8 C (64.0 F) | tie | 49 years | 4 of 100 (Routine) |
| 17 July 2012 | Alcholoya, MX | daily rain | 11.9 mm (0.5 in) | 6.1 mm (0.24 in) | 6 years | 12 of 100 (Routine) |
| 7 July 2012 | Alcholoya, MX | daily low max (Tie) | 18.9 C (66.0 F) | tie | 26 years | 3 of 100 (Routine) |
| 20 June 2012 | Alcholoya, MX | daily low max (Tie) | 17.8 C (64.0 F) | tie | 41 years | 4 of 100 (Routine) |
| 16 June 2012 | Alcholoya, MX | daily low max | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 38 years | 19 of 100 (Routine) |
| 30 May 2012 | Alcholoya, MX | daily low min (Tie) | 3.9 C (39.0 F) | tie | 6 years | 1 of 100 (Routine) |
| 23 May 2012 | Alcholoya, MX | daily low min | 3.9 C (39.0 F) | 1.1 C (2.0 F) | 39 years | 20 of 100 (Routine) |
| 30 April 2012 | Alcholoya, MX | daily low min (Tie) | 2.8 C (37.0 F) | tie | 3 years | 1 of 100 (Routine) |
| 29 April 2012 | Alcholoya, MX | daily low min | 1.7 C (35.1 F) | 1.1 C (2.0 F) | 3 years | 9 of 100 (Routine) |
| 28 April 2012 | Alcholoya, MX | daily low min | 1.7 C (35.1 F) | 1.1 C (2.0 F) | 4 years | 10 of 100 (Routine) |
| 27 April 2012 | Alcholoya, MX | daily low min | 1.7 C (35.1 F) | 1.1 C (2.0 F) | 4 years | 10 of 100 (Routine) |
| 26 April 2012 | Alcholoya, MX | daily low min | 1.7 C (35.1 F) | 3.3 C (5.9 F) | 26 years | 24 of 100 (Routine) |
Climate Trend
38 complete years, 1963 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1963 | 14.9 C | -0.16 C |
| 1965 | 14.7 C | -0.28 C |
| 1967 | 14.7 C | -0.37 C |
| 1968 | 14.6 C | -0.38 C |
| 1969 | 15.3 C | +0.26 C |
| 1970 | 14.6 C | -0.41 C |
| 1971 | 14.6 C | -0.44 C |
| 1973 | 15.1 C | +0.10 C |
| 1974 | 14.4 C | -0.62 C |
| 1975 | 14.8 C | -0.26 C |
| 1976 | 14.4 C | -0.62 C |
| 1977 | 14.5 C | -0.49 C |
| 1978 | 14.6 C | -0.40 C |
| 1979 | 14.6 C | -0.47 C |
| 1980 | 14.5 C | -0.48 C |
| 1981 | 14.2 C | -0.81 C |
| 1982 | 14.9 C | -0.13 C |
| 1983 | 14.5 C | -0.53 C |
| 1986 | 14.4 C | -0.62 C |
| 1987 | 16.0 C | +1.02 C |
| 1988 | 17.0 C | +1.96 C |
| 1989 | 17.1 C | +2.08 C |
| 1990 | 17.2 C | +2.20 C |
| 1992 | 15.3 C | +0.31 C |
| 1993 | 15.2 C | +0.22 C |
| 1995 | 17.1 C | +2.07 C |
| 1999 | 16.5 C | +1.46 C |
| 2000 | 17.0 C | +1.96 C |
| 2002 | 17.4 C | +2.37 C |
| 2003 | 17.1 C | +2.06 C |
| 2004 | 16.2 C | +1.17 C |
| 2005 | 14.4 C | -0.58 C |
| 2006 | 13.6 C | -1.46 C |
| 2007 | 13.4 C | -1.58 C |
| 2008 | 13.1 C | -1.93 C |
| 2009 | 12.9 C | -2.08 C |
| 2010 | 12.5 C | -2.54 C |
| 2011 | 13.4 C | -1.65 C |
The fitted trend in annual mean temperature here over 1963 to 2011 is -0.02 C (-0.32 to 0.28) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.57 to 0.50) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.02 C (-0.32 to 0.28) per decade | -0.04 F (-0.57 to 0.50) per decade | 1963 to 2011 | 38 | Not clearly different from zero |
| Mean daily maximum | -0.03 C (-0.40 to 0.34) per decade | -0.05 F (-0.71 to 0.61) per decade | 1963 to 2011 | 38 | Not clearly different from zero |
| Mean daily minimum | -0.01 C (-0.33 to 0.30) per decade | -0.02 F (-0.59 to 0.54) per decade | 1963 to 2011 | 38 | 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
1962 to 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 2005 | 31.7 C (89.1 F) | 51 |
| Coldest night (TNn) | -9.4 C (15.1 F) | 1988 | -3.3 C (26.1 F) | 51 |
| Wettest day (Rx1day) | 104.9 mm (4.1 in) | 2011 | 34.8 mm (1.4 in) | 51 |
| Wettest five days (Rx5day) | 252.6 mm (9.9 in) | 2011 | 66.6 mm (2.6 in) | 51 |
| Longest dry spell (CDD) | 180 days | 1998 | 52 days | 51 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1962 | 32.8 C (91.0 F) |
| 1963 | 30.0 C (86.0 F) |
| 1964 | 32.8 C (91.0 F) |
| 1965 | 30.6 C (87.1 F) |
| 1966 | 30.6 C (87.1 F) |
| 1967 | 32.2 C (90.0 F) |
| 1968 | 30.0 C (86.0 F) |
| 1969 | 31.7 C (89.1 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 32.8 C (91.0 F) |
| 1972 | 31.7 C (89.1 F) |
| 1973 | 33.9 C (93.0 F) |
| 1974 | 31.1 C (88.0 F) |
| 1975 | 32.8 C (91.0 F) |
| 1976 | 32.2 C (90.0 F) |
| 1977 | 32.2 C (90.0 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 32.2 C (90.0 F) |
| 1980 | 32.2 C (90.0 F) |
| 1981 | 30.0 C (86.0 F) |
| 1982 | 31.1 C (88.0 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 30.0 C (86.0 F) |
| 1987 | 32.8 C (91.0 F) |
| 1988 | 35.6 C (96.1 F) |
| 1989 | 32.8 C (91.0 F) |
| 1990 | 35.6 C (96.1 F) |
| 1991 | 35.0 C (95.0 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 30.6 C (87.1 F) |
| 1995 | 35.0 C (95.0 F) |
| 1996 | 35.0 C (95.0 F) |
| 1997 | 26.7 C (80.1 F) |
| 1998 | 27.8 C (82.0 F) |
| 1999 | 28.9 C (84.0 F) |
| 2000 | 30.0 C (86.0 F) |
| 2001 | 28.9 C (84.0 F) |
| 2002 | 30.0 C (86.0 F) |
| 2003 | 28.9 C (84.0 F) |
| 2004 | 27.8 C (82.0 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 27.8 C (82.0 F) |
| 2007 | 26.7 C (80.1 F) |
| 2008 | 26.7 C (80.1 F) |
| 2009 | 27.8 C (82.0 F) |
| 2010 | 27.8 C (82.0 F) |
| 2011 | 30.6 C (87.1 F) |
| 2012 | 30.0 C (86.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1962 | -2.2 C (28.0 F) |
| 1963 | -4.4 C (24.1 F) |
| 1964 | 0.0 C (32.0 F) |
| 1965 | -3.9 C (25.0 F) |
| 1966 | -5.0 C (23.0 F) |
| 1967 | -5.0 C (23.0 F) |
| 1968 | -3.3 C (26.1 F) |
| 1969 | -1.7 C (28.9 F) |
| 1970 | -5.0 C (23.0 F) |
| 1971 | -3.3 C (26.1 F) |
| 1972 | -4.4 C (24.1 F) |
| 1973 | -7.2 C (19.0 F) |
| 1974 | -5.0 C (23.0 F) |
| 1975 | -6.7 C (19.9 F) |
| 1976 | -8.9 C (16.0 F) |
| 1977 | -4.4 C (24.1 F) |
| 1978 | -2.2 C (28.0 F) |
| 1979 | -5.6 C (21.9 F) |
| 1980 | -5.6 C (21.9 F) |
| 1981 | -3.9 C (25.0 F) |
| 1982 | -4.4 C (24.1 F) |
| 1983 | -5.0 C (23.0 F) |
| 1984 | -4.4 C (24.1 F) |
| 1985 | -4.4 C (24.1 F) |
| 1986 | -7.8 C (18.0 F) |
| 1987 | -6.1 C (21.0 F) |
| 1988 | -9.4 C (15.1 F) |
| 1989 | -6.1 C (21.0 F) |
| 1990 | 2.8 C (37.0 F) |
| 1991 | 1.7 C (35.1 F) |
| 1992 | 2.8 C (37.0 F) |
| 1993 | 1.7 C (35.1 F) |
| 1994 | 3.9 C (39.0 F) |
| 1995 | 0.6 C (33.1 F) |
| 1996 | 0.6 C (33.1 F) |
| 1997 | -1.1 C (30.0 F) |
| 1998 | 3.9 C (39.0 F) |
| 1999 | 0.6 C (33.1 F) |
| 2000 | -3.3 C (26.1 F) |
| 2001 | 5.0 C (41.0 F) |
| 2002 | 1.7 C (35.1 F) |
| 2003 | 0.6 C (33.1 F) |
| 2004 | -1.1 C (30.0 F) |
| 2005 | 0.6 C (33.1 F) |
| 2006 | -3.3 C (26.1 F) |
| 2007 | 0.6 C (33.1 F) |
| 2008 | -1.1 C (30.0 F) |
| 2009 | 0.6 C (33.1 F) |
| 2010 | -2.2 C (28.0 F) |
| 2011 | -2.2 C (28.0 F) |
| 2012 | 0.6 C (33.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1962 | 69.9 mm (2.8 in) |
| 1963 | 32.8 mm (1.3 in) |
| 1964 | 29.0 mm (1.1 in) |
| 1965 | 34.8 mm (1.4 in) |
| 1966 | 47.5 mm (1.9 in) |
| 1967 | 36.8 mm (1.4 in) |
| 1968 | 34.8 mm (1.4 in) |
| 1969 | 42.9 mm (1.7 in) |
| 1970 | 74.9 mm (2.9 in) |
| 1971 | 24.9 mm (1.0 in) |
| 1972 | 28.4 mm (1.1 in) |
| 1973 | 43.9 mm (1.7 in) |
| 1974 | 88.9 mm (3.5 in) |
| 1975 | 43.4 mm (1.7 in) |
| 1976 | 39.9 mm (1.6 in) |
| 1977 | 40.9 mm (1.6 in) |
| 1978 | 47.8 mm (1.9 in) |
| 1979 | 57.9 mm (2.3 in) |
| 1980 | 35.3 mm (1.4 in) |
| 1981 | 67.8 mm (2.7 in) |
| 1982 | 21.8 mm (0.9 in) |
| 1983 | 27.9 mm (1.1 in) |
| 1984 | 58.4 mm (2.3 in) |
| 1985 | 23.9 mm (0.9 in) |
| 1986 | 32.8 mm (1.3 in) |
| 1987 | 32.3 mm (1.3 in) |
| 1988 | 59.9 mm (2.4 in) |
| 1989 | 19.8 mm (0.8 in) |
| 1990 | 19.8 mm (0.8 in) |
| 1991 | 19.8 mm (0.8 in) |
| 1992 | 20.8 mm (0.8 in) |
| 1993 | 19.8 mm (0.8 in) |
| 1994 | 13.0 mm (0.5 in) |
| 1995 | 15.0 mm (0.6 in) |
| 1996 | 19.8 mm (0.8 in) |
| 1997 | 25.9 mm (1.0 in) |
| 1998 | 27.9 mm (1.1 in) |
| 1999 | 97.8 mm (3.9 in) |
| 2000 | 19.8 mm (0.8 in) |
| 2001 | 19.8 mm (0.8 in) |
| 2002 | 24.9 mm (1.0 in) |
| 2003 | 19.8 mm (0.8 in) |
| 2004 | 23.9 mm (0.9 in) |
| 2005 | 70.9 mm (2.8 in) |
| 2006 | 42.9 mm (1.7 in) |
| 2007 | 89.9 mm (3.5 in) |
| 2008 | 39.9 mm (1.6 in) |
| 2009 | 39.9 mm (1.6 in) |
| 2010 | 47.0 mm (1.9 in) |
| 2011 | 104.9 mm (4.1 in) |
| 2012 | 19.8 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1962 | 129.3 mm (5.1 in) |
| 1963 | 61.0 mm (2.4 in) |
| 1964 | 44.5 mm (1.8 in) |
| 1965 | 77.0 mm (3.0 in) |
| 1966 | 116.9 mm (4.6 in) |
| 1967 | 72.4 mm (2.9 in) |
| 1968 | 69.8 mm (2.7 in) |
| 1969 | 80.5 mm (3.2 in) |
| 1970 | 188.7 mm (7.4 in) |
| 1971 | 44.8 mm (1.8 in) |
| 1972 | 42.4 mm (1.7 in) |
| 1973 | 110.0 mm (4.3 in) |
| 1974 | 161.9 mm (6.4 in) |
| 1975 | 90.4 mm (3.6 in) |
| 1976 | 86.9 mm (3.4 in) |
| 1977 | 64.1 mm (2.5 in) |
| 1978 | 68.9 mm (2.7 in) |
| 1979 | 118.8 mm (4.7 in) |
| 1980 | 82.8 mm (3.3 in) |
| 1981 | 139.2 mm (5.5 in) |
| 1982 | 39.6 mm (1.6 in) |
| 1983 | 35.8 mm (1.4 in) |
| 1984 | 120.9 mm (4.8 in) |
| 1985 | 49.0 mm (1.9 in) |
| 1986 | 41.4 mm (1.6 in) |
| 1987 | 64.3 mm (2.5 in) |
| 1988 | 77.2 mm (3.0 in) |
| 1989 | 64.2 mm (2.5 in) |
| 1990 | 36.9 mm (1.5 in) |
| 1991 | 66.6 mm (2.6 in) |
| 1992 | 60.4 mm (2.4 in) |
| 1993 | 41.9 mm (1.6 in) |
| 1994 | 25.6 mm (1.0 in) |
| 1995 | 29.7 mm (1.2 in) |
| 1996 | 64.3 mm (2.5 in) |
| 1997 | 64.5 mm (2.5 in) |
| 1998 | 63.8 mm (2.5 in) |
| 1999 | 205.5 mm (8.1 in) |
| 2000 | 59.4 mm (2.3 in) |
| 2001 | 48.6 mm (1.9 in) |
| 2002 | 71.4 mm (2.8 in) |
| 2003 | 53.4 mm (2.1 in) |
| 2004 | 55.4 mm (2.2 in) |
| 2005 | 141.3 mm (5.6 in) |
| 2006 | 61.7 mm (2.4 in) |
| 2007 | 116.4 mm (4.6 in) |
| 2008 | 79.3 mm (3.1 in) |
| 2009 | 73.4 mm (2.9 in) |
| 2010 | 125.6 mm (4.9 in) |
| 2011 | 252.6 mm (9.9 in) |
| 2012 | 30.8 mm (1.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1962 | 52 days |
| 1963 | 55 days |
| 1964 | 39 days |
| 1965 | 31 days |
| 1966 | 37 days |
| 1967 | 51 days |
| 1968 | 49 days |
| 1969 | 33 days |
| 1970 | 77 days |
| 1971 | 75 days |
| 1972 | 41 days |
| 1973 | 68 days |
| 1974 | 41 days |
| 1975 | 78 days |
| 1976 | 52 days |
| 1977 | 101 days |
| 1978 | 37 days |
| 1979 | 36 days |
| 1980 | 40 days |
| 1981 | 32 days |
| 1982 | 55 days |
| 1983 | 144 days |
| 1984 | 40 days |
| 1985 | 153 days |
| 1986 | 105 days |
| 1987 | 110 days |
| 1988 | 59 days |
| 1989 | 49 days |
| 1990 | 30 days |
| 1991 | 24 days |
| 1992 | 46 days |
| 1993 | 51 days |
| 1994 | 56 days |
| 1995 | 83 days |
| 1996 | 96 days |
| 1997 | 78 days |
| 1998 | 180 days |
| 1999 | 51 days |
| 2000 | 44 days |
| 2001 | 61 days |
| 2002 | 82 days |
| 2003 | 39 days |
| 2004 | 81 days |
| 2005 | 71 days |
| 2006 | 53 days |
| 2007 | 28 days |
| 2008 | 41 days |
| 2009 | 56 days |
| 2010 | 47 days |
| 2011 | 56 days |
| 2012 | 64 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
21 years with a frostAcross 21 years with a frost, the median last spring frost at Alcholoya falls on 9 March and the median first autumn frost on 12 November, which leaves a median of 248 days between them.
| Measure | Median, all years | Earliest period | Recent period (1963 to 2008) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 9 March | n/a | 9 March | n/a | n/a |
| First autumn frost | 12 November | n/a | 12 November | n/a | n/a |
| Growing days | 248 days | n/a | 248 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
46 years, 1963 to 2011A day with at least 35.0 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 134.1 mm (5.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 35.0 mm (1.4 in) | |
| 5 years | 53.8 mm (2.1 in) | |
| 10 years | 68.9 mm (2.7 in) | |
| 25 years | 91.5 mm (3.6 in) | |
| 50 years | 111.4 mm (4.4 in) | Longer than the 46 years of record |
| 100 years | 134.1 mm (5.3 in) | Longer than the 46 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, 46 years of values from 1963 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: 104.9 mm (4.1 in) in 2011; 97.8 mm (3.9 in) in 1999; 89.9 mm (3.5 in) in 2007.
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).