Actopan Weather Records (MXN00013060)
Record envelope, standing records and threshold days for Actopan (MXN00013060), Mexico, with 60 years of record.
Key Facts for Actopan
- Actopan (MXN00013060) is a weather station in Mexico at 20.27 latitude and -98.93 longitude, 1,955 m (6,414 ft) above sea level.
- The station reports from 1953 to 2012, 60 years of record.
- 1,464 records set at Actopan still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Actopan tied a daily record high minimum temperature of 8.9 C (48.0 F) on 24 November 2012.
About the Station
- Location: Mexico, 20.27 latitude, -98.93 longitude.
- Elevation: 1,955 m (6,414 ft).
- Period of record: 1953 to 2012, 60 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) | -7.2 C (19.0 F) | n/a | n/a |
| Feb | 32.2 C (90.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Mar | 36.7 C (98.1 F) | -4.4 C (24.1 F) | n/a | n/a |
| Apr | 38.9 C (102.0 F) | -3.3 C (26.1 F) | n/a | n/a |
| May | 41.7 C (107.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jun | 36.7 C (98.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Jul | 33.9 C (93.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Aug | 36.7 C (98.1 F) | 1.1 C (34.0 F) | n/a | n/a |
| Sep | 32.8 C (91.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Oct | 35.6 C (96.1 F) | -3.3 C (26.1 F) | n/a | n/a |
| Nov | 30.6 C (87.1 F) | -6.1 C (21.0 F) | n/a | n/a |
| Dec | 31.7 C (89.1 F) | -8.3 C (17.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1953 | 10 |
| 1954 | 16 |
| 1955 | 42 |
| 1956 | 28 |
| 1957 | 34 |
| 1958 | 54 |
| 1959 | 35 |
| 1960 | 26 |
| 1961 | 37 |
| 1962 | 30 |
| 1963 | 25 |
| 1964 | 40 |
| 1965 | 22 |
| 1966 | 32 |
| 1967 | 14 |
| 1968 | 18 |
| 1969 | 24 |
| 1970 | 21 |
| 1971 | 19 |
| 1972 | 12 |
| 1973 | 16 |
| 1974 | 18 |
| 1975 | 21 |
| 1976 | 22 |
| 1977 | 20 |
| 1978 | 18 |
| 1979 | 26 |
| 1980 | 27 |
| 1981 | 11 |
| 1982 | 7 |
| 1983 | 15 |
| 1984 | 11 |
| 1985 | 14 |
| 1986 | 18 |
| 1987 | 27 |
| 1988 | 19 |
| 1989 | 31 |
| 1990 | 33 |
| 1991 | 18 |
| 1992 | 18 |
| 1993 | 34 |
| 1994 | 28 |
| 1995 | 14 |
| 1996 | 7 |
| 1997 | 15 |
| 1998 | 103 |
| 1999 | 40 |
| 2000 | 21 |
| 2001 | 13 |
| 2002 | 18 |
| 2003 | 24 |
| 2004 | 9 |
| 2005 | 9 |
| 2006 | 10 |
| 2007 | 89 |
| 2008 | 14 |
| 2009 | 26 |
| 2010 | 41 |
| 2011 | 16 |
| 2012 | 4 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1988-09-02 | Record daily precipitation | Record daily precipitation 97.8 mm (3.9 in) |
| 1997-12-13 | Record low maximum temperature | Record low maximum temperature 5.0 C (41.0 F) |
| 1998-05-03 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1998-05-04 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1999-09-30 | Record daily precipitation | Record daily precipitation 116.8 mm (4.6 in) |
| 2003-12-21 | Record low minimum temperature | Record low minimum temperature -8.3 C (17.1 F) |
Wettest Day of Each Month
Sep: 116.8 mm (4.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 27.4 mm (1.1 in) | 13 January 2002 |
| Feb | 18.8 mm (0.7 in) | 3 February 2010 |
| Mar | 33.8 mm (1.3 in) | 20 March 1967 |
| Apr | 30.0 mm (1.2 in) | 12 April 1962 |
| May | 36.8 mm (1.4 in) | 1 May 1960 |
| Jun | 61.0 mm (2.4 in) | 26 June 1973 |
| Jul | 77.0 mm (3.0 in) | 4 July 2007 |
| Aug | 99.8 mm (3.9 in) | 22 August 2007 |
| Sep | 116.8 mm (4.6 in) | 30 September 1999 |
| Oct | 77.0 mm (3.0 in) | 6 October 1994 |
| Nov | 24.9 mm (1.0 in) | 6 November 1992 |
| Dec | 15.0 mm (0.6 in) | 15 December 2004 |
Period of Record Coverage
1953 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1953 | 82 | 22% | No |
| 1954 | 134 | 37% | No |
| 1955 | 357 | 98% | Yes |
| 1956 | 356 | 97% | Yes |
| 1957 | 351 | 96% | Yes |
| 1958 | 356 | 98% | Yes |
| 1959 | 352 | 96% | Yes |
| 1960 | 358 | 98% | Yes |
| 1961 | 359 | 98% | Yes |
| 1962 | 352 | 96% | Yes |
| 1963 | 354 | 97% | Yes |
| 1964 | 353 | 96% | Yes |
| 1965 | 356 | 98% | Yes |
| 1966 | 359 | 98% | Yes |
| 1967 | 358 | 98% | Yes |
| 1968 | 330 | 90% | Yes |
| 1969 | 360 | 99% | Yes |
| 1970 | 360 | 99% | Yes |
| 1971 | 360 | 99% | Yes |
| 1972 | 360 | 98% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 365 | 100% | Yes |
| 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 | 364 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 347 | 95% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 363 | 99% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 361 | 99% | Yes |
| 2000 | 357 | 98% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 342 | 94% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 92 | 25% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 November 2012 | Actopan, MX | daily high min (Tie) | 8.9 C (48.0 F) | tie | 52 years | 5 of 100 (Routine) |
| 7 October 2012 | Actopan, MX | daily low min | 2.8 C (37.0 F) | 0.5 C (0.9 F) | 55 years | 23 of 100 (Routine) |
| 6 October 2012 | Actopan, MX | daily low min | 0.6 C (33.1 F) | 3.3 C (5.9 F) | 55 years | 32 of 100 (Routine) |
| 5 October 2012 | Actopan, MX | daily low min | -1.1 C (30.0 F) | 2.8 C (5.0 F) | 2 years | 14 of 100 (Routine) |
| 4 October 2012 | Actopan, MX | daily low min | 0.0 C (32.0 F) | 0.6 C (1.1 F) | 2 years | 7 of 100 (Routine) |
| 5 December 2011 | Actopan, MX | daily high max (Tie) | 26.7 C (80.1 F) | tie | 37 years | 4 of 100 (Routine) |
| 1 December 2011 | Actopan, MX | daily low min | -3.3 C (26.1 F) | 2.2 C (4.0 F) | 44 years | 24 of 100 (Routine) |
| 30 November 2011 | Actopan, MX | monthly low min (Tie) | -6.1 C (21.0 F) | tie | 0 years | 3 of 100 (Routine) |
| 29 November 2011 | Actopan, MX | monthly low min | -6.1 C (21.0 F) | 1.1 C (2.0 F) | 44 years | 31 of 100 (Routine) |
| 27 November 2011 | Actopan, MX | daily low max | 8.9 C (48.0 F) | 6.1 C (11.0 F) | 18 years | 26 of 100 (Routine) |
| 24 November 2011 | Actopan, MX | daily high min (Tie) | 8.9 C (48.0 F) | tie | 50 years | 5 of 100 (Routine) |
| 1 November 2011 | Actopan, MX | daily low min (Tie) | 0.0 C (32.0 F) | tie | 48 years | 4 of 100 (Routine) |
| 31 October 2011 | Actopan, MX | daily low min | -1.1 C (30.0 F) | 1.1 C (2.0 F) | 24 years | 15 of 100 (Routine) |
| 27 October 2011 | Actopan, MX | monthly low min (Tie) | -3.3 C (26.1 F) | tie | 44 years | 7 of 100 (Routine) |
| 23 October 2011 | Actopan, MX | daily low min | 0.0 C (32.0 F) | 0.6 C (1.1 F) | 9 years | 8 of 100 (Routine) |
| 22 October 2011 | Actopan, MX | daily low min (Tie) | 0.0 C (32.0 F) | tie | 46 years | 4 of 100 (Routine) |
| 2 October 2011 | Actopan, MX | daily low max | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 10 years | 11 of 100 (Routine) |
| 1 October 2011 | Actopan, MX | daily low max (Tie) | 15.6 C (60.1 F) | tie | 14 years | 2 of 100 (Routine) |
| 11 September 2011 | Actopan, MX | daily low max | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 54 years | 26 of 100 (Routine) |
| 11 September 2011 | Actopan, MX | daily low min | 2.8 C (37.0 F) | 2.8 C (5.0 F) | 12 years | 19 of 100 (Routine) |
Climate Trend
52 complete years, 1955 to 2011| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1955 | 17.1 C | +0.79 C |
| 1956 | 16.2 C | -0.05 C |
| 1957 | 17.2 C | +0.93 C |
| 1958 | 17.0 C | +0.73 C |
| 1959 | 16.5 C | +0.20 C |
| 1960 | 17.0 C | +0.70 C |
| 1961 | 16.5 C | +0.25 C |
| 1962 | 16.8 C | +0.49 C |
| 1963 | 17.0 C | +0.69 C |
| 1964 | 17.3 C | +1.06 C |
| 1965 | 16.8 C | +0.53 C |
| 1966 | 16.4 C | +0.12 C |
| 1967 | 16.7 C | +0.43 C |
| 1969 | 16.6 C | +0.32 C |
| 1970 | 16.1 C | -0.13 C |
| 1971 | 16.1 C | -0.12 C |
| 1972 | 16.6 C | +0.31 C |
| 1973 | 16.6 C | +0.32 C |
| 1974 | 16.1 C | -0.17 C |
| 1975 | 16.4 C | +0.16 C |
| 1976 | 16.1 C | -0.18 C |
| 1977 | 16.5 C | +0.25 C |
| 1978 | 16.7 C | +0.40 C |
| 1979 | 16.5 C | +0.24 C |
| 1980 | 17.2 C | +0.91 C |
| 1981 | 15.4 C | -0.87 C |
| 1982 | 16.3 C | +0.08 C |
| 1983 | 16.5 C | +0.19 C |
| 1984 | 15.9 C | -0.41 C |
| 1985 | 15.8 C | -0.48 C |
| 1986 | 16.2 C | -0.10 C |
| 1987 | 16.4 C | +0.13 C |
| 1989 | 16.7 C | +0.42 C |
| 1990 | 17.4 C | +1.16 C |
| 1991 | 17.2 C | +0.90 C |
| 1992 | 16.2 C | -0.08 C |
| 1993 | 17.4 C | +1.12 C |
| 1994 | 17.4 C | +1.13 C |
| 1995 | 17.2 C | +0.93 C |
| 1996 | 16.5 C | +0.19 C |
| 1997 | 15.9 C | -0.41 C |
| 1998 | 16.4 C | +0.17 C |
| 2001 | 14.7 C | -1.57 C |
| 2002 | 15.3 C | -0.92 C |
| 2003 | 15.9 C | -0.33 C |
| 2004 | 15.3 C | -0.96 C |
| 2006 | 15.3 C | -0.98 C |
| 2007 | 13.8 C | -2.46 C |
| 2008 | 14.8 C | -1.51 C |
| 2009 | 14.7 C | -1.58 C |
| 2010 | 14.3 C | -2.01 C |
| 2011 | 15.5 C | -0.76 C |
The annual mean temperature here has fallen by 0.3 C (0.2 to 0.4) per decade over 1955 to 2011. In Fahrenheit: 0.5 F (0.3 to 0.7) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.3 C (-0.4 to -0.2) per decade | -0.5 F (-0.7 to -0.3) per decade | 1955 to 2011 | 52 | Fall |
| Mean daily maximum | -0.16 C (-0.33 to 0.01) per decade | -0.29 F (-0.59 to 0.01) per decade | 1955 to 2011 | 52 | Not clearly different from zero |
| Mean daily minimum | -0.4 C (-0.6 to -0.3) per decade | -0.8 F (-1.1 to -0.5) per decade | 1955 to 2011 | 52 | Fall |
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
1953 to 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.7 C (107.1 F) | 1998 | 34.7 C (94.5 F) | 60 |
| Coldest night (TNn) | -8.3 C (17.1 F) | 2003 | -4.4 C (24.1 F) | 60 |
| Wettest day (Rx1day) | 116.8 mm (4.6 in) | 1999 | 34.3 mm (1.4 in) | 60 |
| Wettest five days (Rx5day) | 155.2 mm (6.1 in) | 1999 | 57.8 mm (2.3 in) | 60 |
| Longest dry spell (CDD) | 141 days | 2009 | 61 days | 60 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1953 | 26.7 C (80.1 F) |
| 1954 | 33.9 C (93.0 F) |
| 1955 | 35.0 C (95.0 F) |
| 1956 | 33.9 C (93.0 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 31.7 C (89.1 F) |
| 1960 | 37.8 C (100.0 F) |
| 1961 | 35.6 C (96.1 F) |
| 1962 | 35.6 C (96.1 F) |
| 1963 | 33.9 C (93.0 F) |
| 1964 | 36.1 C (97.0 F) |
| 1965 | 38.9 C (102.0 F) |
| 1966 | 35.0 C (95.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 32.8 C (91.0 F) |
| 1970 | 33.9 C (93.0 F) |
| 1971 | 36.7 C (98.1 F) |
| 1972 | 31.7 C (89.1 F) |
| 1973 | 33.9 C (93.0 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 33.9 C (93.0 F) |
| 1976 | 33.9 C (93.0 F) |
| 1977 | 33.9 C (93.0 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 33.9 C (93.0 F) |
| 1981 | 31.7 C (89.1 F) |
| 1982 | 38.9 C (102.0 F) |
| 1983 | 35.0 C (95.0 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 31.7 C (89.1 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 31.7 C (89.1 F) |
| 1988 | 35.0 C (95.0 F) |
| 1989 | 35.6 C (96.1 F) |
| 1990 | 35.0 C (95.0 F) |
| 1991 | 35.0 C (95.0 F) |
| 1992 | 30.6 C (87.1 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 34.4 C (93.9 F) |
| 1995 | 33.9 C (93.0 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 31.7 C (89.1 F) |
| 1998 | 41.7 C (107.1 F) |
| 1999 | 36.7 C (98.1 F) |
| 2000 | 35.0 C (95.0 F) |
| 2001 | 33.9 C (93.0 F) |
| 2002 | 35.0 C (95.0 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 30.6 C (87.1 F) |
| 2005 | 31.7 C (89.1 F) |
| 2006 | 33.9 C (93.0 F) |
| 2007 | 31.7 C (89.1 F) |
| 2008 | 31.7 C (89.1 F) |
| 2009 | 31.7 C (89.1 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 27.8 C (82.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1953 | -5.0 C (23.0 F) |
| 1954 | -6.1 C (21.0 F) |
| 1955 | -4.4 C (24.1 F) |
| 1956 | -7.2 C (19.0 F) |
| 1957 | -3.3 C (26.1 F) |
| 1958 | -3.3 C (26.1 F) |
| 1959 | -2.2 C (28.0 F) |
| 1960 | -5.0 C (23.0 F) |
| 1961 | -4.4 C (24.1 F) |
| 1962 | -6.1 C (21.0 F) |
| 1963 | -5.0 C (23.0 F) |
| 1964 | -3.3 C (26.1 F) |
| 1965 | -5.0 C (23.0 F) |
| 1966 | -7.2 C (19.0 F) |
| 1967 | -4.4 C (24.1 F) |
| 1968 | -4.4 C (24.1 F) |
| 1969 | -2.2 C (28.0 F) |
| 1970 | -5.0 C (23.0 F) |
| 1971 | -2.2 C (28.0 F) |
| 1972 | -3.3 C (26.1 F) |
| 1973 | -4.4 C (24.1 F) |
| 1974 | -3.3 C (26.1 F) |
| 1975 | -5.0 C (23.0 F) |
| 1976 | -6.1 C (21.0 F) |
| 1977 | -3.3 C (26.1 F) |
| 1978 | -1.1 C (30.0 F) |
| 1979 | -3.9 C (25.0 F) |
| 1980 | -4.4 C (24.1 F) |
| 1981 | -5.0 C (23.0 F) |
| 1982 | -3.3 C (26.1 F) |
| 1983 | -5.0 C (23.0 F) |
| 1984 | -5.0 C (23.0 F) |
| 1985 | -5.0 C (23.0 F) |
| 1986 | -5.0 C (23.0 F) |
| 1987 | -4.4 C (24.1 F) |
| 1988 | -6.1 C (21.0 F) |
| 1989 | -4.4 C (24.1 F) |
| 1990 | -2.2 C (28.0 F) |
| 1991 | 0.6 C (33.1 F) |
| 1992 | 0.6 C (33.1 F) |
| 1993 | -1.1 C (30.0 F) |
| 1994 | -3.3 C (26.1 F) |
| 1995 | -1.1 C (30.0 F) |
| 1996 | -3.3 C (26.1 F) |
| 1997 | -7.2 C (19.0 F) |
| 1998 | -3.3 C (26.1 F) |
| 1999 | -7.2 C (19.0 F) |
| 2000 | -6.1 C (21.0 F) |
| 2001 | -6.1 C (21.0 F) |
| 2002 | -6.1 C (21.0 F) |
| 2003 | -8.3 C (17.1 F) |
| 2004 | -3.3 C (26.1 F) |
| 2005 | -6.1 C (21.0 F) |
| 2006 | -6.1 C (21.0 F) |
| 2007 | -1.1 C (30.0 F) |
| 2008 | -4.4 C (24.1 F) |
| 2009 | -4.4 C (24.1 F) |
| 2010 | -6.1 C (21.0 F) |
| 2011 | -6.1 C (21.0 F) |
| 2012 | -2.2 C (28.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1953 | 23.9 mm (0.9 in) |
| 1954 | 60.5 mm (2.4 in) |
| 1955 | 95.8 mm (3.8 in) |
| 1956 | 61.0 mm (2.4 in) |
| 1957 | 33.8 mm (1.3 in) |
| 1958 | 46.0 mm (1.8 in) |
| 1959 | 45.0 mm (1.8 in) |
| 1960 | 69.9 mm (2.8 in) |
| 1961 | 18.8 mm (0.7 in) |
| 1962 | 34.8 mm (1.4 in) |
| 1963 | 22.9 mm (0.9 in) |
| 1964 | 20.8 mm (0.8 in) |
| 1965 | 30.0 mm (1.2 in) |
| 1966 | 33.8 mm (1.3 in) |
| 1967 | 34.8 mm (1.4 in) |
| 1968 | 40.9 mm (1.6 in) |
| 1969 | 32.8 mm (1.3 in) |
| 1970 | 21.8 mm (0.9 in) |
| 1971 | 63.0 mm (2.5 in) |
| 1972 | 26.9 mm (1.1 in) |
| 1973 | 61.0 mm (2.4 in) |
| 1974 | 79.8 mm (3.1 in) |
| 1975 | 30.0 mm (1.2 in) |
| 1976 | 29.0 mm (1.1 in) |
| 1977 | 25.9 mm (1.0 in) |
| 1978 | 47.0 mm (1.9 in) |
| 1979 | 35.1 mm (1.4 in) |
| 1980 | 33.3 mm (1.3 in) |
| 1981 | 42.4 mm (1.7 in) |
| 1982 | 39.6 mm (1.6 in) |
| 1983 | 26.9 mm (1.1 in) |
| 1984 | 52.6 mm (2.1 in) |
| 1985 | 25.9 mm (1.0 in) |
| 1986 | 31.8 mm (1.3 in) |
| 1987 | 26.4 mm (1.0 in) |
| 1988 | 97.8 mm (3.9 in) |
| 1989 | 22.4 mm (0.9 in) |
| 1990 | 83.1 mm (3.3 in) |
| 1991 | 25.1 mm (1.0 in) |
| 1992 | 25.9 mm (1.0 in) |
| 1993 | 54.4 mm (2.1 in) |
| 1994 | 77.0 mm (3.0 in) |
| 1995 | 40.9 mm (1.6 in) |
| 1996 | 46.0 mm (1.8 in) |
| 1997 | 41.4 mm (1.6 in) |
| 1998 | 74.9 mm (2.9 in) |
| 1999 | 116.8 mm (4.6 in) |
| 2000 | 59.9 mm (2.4 in) |
| 2001 | 31.0 mm (1.2 in) |
| 2002 | 27.4 mm (1.1 in) |
| 2003 | 34.8 mm (1.4 in) |
| 2004 | 27.9 mm (1.1 in) |
| 2005 | 30.0 mm (1.2 in) |
| 2006 | 33.8 mm (1.3 in) |
| 2007 | 99.8 mm (3.9 in) |
| 2008 | 36.3 mm (1.4 in) |
| 2009 | 20.8 mm (0.8 in) |
| 2010 | 23.9 mm (0.9 in) |
| 2011 | 27.9 mm (1.1 in) |
| 2012 | 4.8 mm (0.19 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1953 | 32.1 mm (1.3 in) |
| 1954 | 112.4 mm (4.4 in) |
| 1955 | 150.0 mm (5.9 in) |
| 1956 | 94.6 mm (3.7 in) |
| 1957 | 43.0 mm (1.7 in) |
| 1958 | 80.6 mm (3.2 in) |
| 1959 | 97.1 mm (3.8 in) |
| 1960 | 73.7 mm (2.9 in) |
| 1961 | 52.8 mm (2.1 in) |
| 1962 | 80.5 mm (3.2 in) |
| 1963 | 50.1 mm (2.0 in) |
| 1964 | 39.7 mm (1.6 in) |
| 1965 | 49.6 mm (2.0 in) |
| 1966 | 52.6 mm (2.1 in) |
| 1967 | 52.6 mm (2.1 in) |
| 1968 | 53.8 mm (2.1 in) |
| 1969 | 42.8 mm (1.7 in) |
| 1970 | 45.0 mm (1.8 in) |
| 1971 | 116.9 mm (4.6 in) |
| 1972 | 36.4 mm (1.4 in) |
| 1973 | 109.8 mm (4.3 in) |
| 1974 | 128.4 mm (5.1 in) |
| 1975 | 44.3 mm (1.7 in) |
| 1976 | 45.3 mm (1.8 in) |
| 1977 | 43.2 mm (1.7 in) |
| 1978 | 66.3 mm (2.6 in) |
| 1979 | 66.6 mm (2.6 in) |
| 1980 | 59.7 mm (2.4 in) |
| 1981 | 85.4 mm (3.4 in) |
| 1982 | 41.6 mm (1.6 in) |
| 1983 | 35.4 mm (1.4 in) |
| 1984 | 97.4 mm (3.8 in) |
| 1985 | 58.1 mm (2.3 in) |
| 1986 | 67.2 mm (2.6 in) |
| 1987 | 30.7 mm (1.2 in) |
| 1988 | 115.7 mm (4.6 in) |
| 1989 | 47.4 mm (1.9 in) |
| 1990 | 88.2 mm (3.5 in) |
| 1991 | 56.2 mm (2.2 in) |
| 1992 | 48.0 mm (1.9 in) |
| 1993 | 63.5 mm (2.5 in) |
| 1994 | 103.2 mm (4.1 in) |
| 1995 | 81.8 mm (3.2 in) |
| 1996 | 46.0 mm (1.8 in) |
| 1997 | 76.5 mm (3.0 in) |
| 1998 | 106.4 mm (4.2 in) |
| 1999 | 155.2 mm (6.1 in) |
| 2000 | 62.3 mm (2.5 in) |
| 2001 | 67.3 mm (2.6 in) |
| 2002 | 57.4 mm (2.3 in) |
| 2003 | 74.4 mm (2.9 in) |
| 2004 | 33.8 mm (1.3 in) |
| 2005 | 38.3 mm (1.5 in) |
| 2006 | 50.3 mm (2.0 in) |
| 2007 | 123.5 mm (4.9 in) |
| 2008 | 68.3 mm (2.7 in) |
| 2009 | 34.0 mm (1.3 in) |
| 2010 | 56.4 mm (2.2 in) |
| 2011 | 45.9 mm (1.8 in) |
| 2012 | 6.4 mm (0.25 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1953 | 47 days |
| 1954 | 77 days |
| 1955 | 129 days |
| 1956 | 76 days |
| 1957 | 63 days |
| 1958 | 32 days |
| 1959 | 95 days |
| 1960 | 64 days |
| 1961 | 47 days |
| 1962 | 101 days |
| 1963 | 34 days |
| 1964 | 50 days |
| 1965 | 50 days |
| 1966 | 44 days |
| 1967 | 66 days |
| 1968 | 60 days |
| 1969 | 81 days |
| 1970 | 81 days |
| 1971 | 67 days |
| 1972 | 44 days |
| 1973 | 85 days |
| 1974 | 47 days |
| 1975 | 75 days |
| 1976 | 80 days |
| 1977 | 61 days |
| 1978 | 28 days |
| 1979 | 33 days |
| 1980 | 63 days |
| 1981 | 34 days |
| 1982 | 55 days |
| 1983 | 56 days |
| 1984 | 37 days |
| 1985 | 52 days |
| 1986 | 104 days |
| 1987 | 109 days |
| 1988 | 61 days |
| 1989 | 55 days |
| 1990 | 33 days |
| 1991 | 58 days |
| 1992 | 46 days |
| 1993 | 61 days |
| 1994 | 53 days |
| 1995 | 35 days |
| 1996 | 67 days |
| 1997 | 46 days |
| 1998 | 121 days |
| 1999 | 105 days |
| 2000 | 86 days |
| 2001 | 51 days |
| 2002 | 86 days |
| 2003 | 87 days |
| 2004 | 42 days |
| 2005 | 69 days |
| 2006 | 82 days |
| 2007 | 48 days |
| 2008 | 116 days |
| 2009 | 141 days |
| 2010 | 64 days |
| 2011 | 93 days |
| 2012 | 22 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
42 years with a frostAcross 42 years with a frost, the median last spring frost at Actopan falls on 9 March and the median first autumn frost on 12 November, which leaves a median of 252 days between them.
Fitted over all years, the growing season changes by -4.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1970 to 2011) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 9 March | n/a | 12 March | n/a | +2.9 days per decade |
| First autumn frost | 12 November | n/a | 14 November | n/a | -1.1 days per decade |
| Growing days | 252 days | n/a | 250 days | n/a | -4.0 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
55 years, 1955 to 2011A day with at least 37.1 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 148.0 mm (5.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 37.1 mm (1.5 in) | |
| 5 years | 55.4 mm (2.2 in) | |
| 10 years | 71.2 mm (2.8 in) | |
| 25 years | 96.3 mm (3.8 in) | |
| 50 years | 119.8 mm (4.7 in) | |
| 100 years | 148.0 mm (5.8 in) | Longer than the 55 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, 55 years of values from 1955 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: 116.8 mm (4.6 in) in 1999; 99.8 mm (3.9 in) in 2007; 97.8 mm (3.9 in) in 1988.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Actopan, at 2003. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2003 ran 0.7 C (1.2 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2003 | +0.7 | +1.2 | 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).