Mt Mary College Weather Records (USC00475474)
Record envelope, standing records and threshold days for Mt Mary College (USC00475474), Wisconsin, United States, with 74 years of record.
Key Facts for Mt Mary College
- Mt Mary College (USC00475474) is a weather station in Wisconsin, United States at 43.07 latitude and -88.03 longitude, 218 m (715 ft) above sea level.
- The station reports from 1946 to 2019, 74 years of record.
- 1,464 records set at Mt Mary College still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Mt Mary College set a monthly record daily precipitation of 42.2 mm (1.7 in) on 12 February 2019.
About the Station
- Location: Wisconsin, United States, 43.07 latitude, -88.03 longitude.
- Elevation: 218 m (715 ft).
- Period of record: 1946 to 2019, 74 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
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 | 15.6 C (60.1 F) | -32.8 C (-27.0 F) | n/a | n/a |
| Feb | 21.7 C (71.1 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Mar | 30.0 C (86.0 F) | -26.1 C (-15.0 F) | n/a | n/a |
| Apr | 32.2 C (90.0 F) | -11.7 C (10.9 F) | n/a | n/a |
| May | 35.0 C (95.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jun | 40.0 C (104.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Jul | 42.2 C (108.0 F) | 4.4 C (39.9 F) | n/a | n/a |
| Aug | 42.2 C (108.0 F) | 5.0 C (41.0 F) | n/a | n/a |
| Sep | 37.8 C (100.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Oct | 32.2 C (90.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Nov | 25.6 C (78.1 F) | -22.2 C (-8.0 F) | n/a | n/a |
| Dec | 20.0 C (68.0 F) | -30.0 C (-22.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1946 | 7 |
| 1947 | 47 |
| 1948 | 23 |
| 1949 | 21 |
| 1950 | 51 |
| 1951 | 37 |
| 1952 | 17 |
| 1953 | 24 |
| 1954 | 16 |
| 1955 | 20 |
| 1956 | 18 |
| 1957 | 17 |
| 1958 | 24 |
| 1959 | 27 |
| 1960 | 18 |
| 1961 | 10 |
| 1962 | 24 |
| 1963 | 39 |
| 1964 | 21 |
| 1965 | 36 |
| 1966 | 17 |
| 1967 | 17 |
| 1968 | 21 |
| 1969 | 13 |
| 1970 | 15 |
| 1971 | 13 |
| 1972 | 24 |
| 1973 | 19 |
| 1974 | 25 |
| 1975 | 13 |
| 1976 | 29 |
| 1977 | 28 |
| 1978 | 9 |
| 1979 | 16 |
| 1980 | 10 |
| 1981 | 16 |
| 1982 | 30 |
| 1983 | 31 |
| 1984 | 13 |
| 1985 | 17 |
| 1986 | 19 |
| 1987 | 23 |
| 1988 | 45 |
| 1989 | 18 |
| 1990 | 27 |
| 1991 | 29 |
| 1992 | 20 |
| 1993 | 4 |
| 1994 | 23 |
| 1995 | 20 |
| 1996 | 14 |
| 1997 | 13 |
| 1998 | 9 |
| 1999 | 16 |
| 2000 | 18 |
| 2001 | 14 |
| 2002 | 18 |
| 2003 | 8 |
| 2004 | 9 |
| 2005 | 18 |
| 2006 | 13 |
| 2007 | 18 |
| 2008 | 13 |
| 2009 | 14 |
| 2010 | 13 |
| 2011 | 13 |
| 2012 | 40 |
| 2013 | 7 |
| 2014 | 24 |
| 2015 | 15 |
| 2016 | 11 |
| 2017 | 29 |
| 2018 | 15 |
| 2019 | 1 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1979-01-14 | Record snow depth | Record snow depth 71.1 cm (28.0 in) |
| 1979-01-16 | Record snow depth | Record snow depth 76.2 cm (30.0 in) |
| 1979-01-24 | Record snow depth | Record snow depth 78.7 cm (31.0 in) |
| 1982-01-10 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 1988-06-21 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1988-08-01 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
Wettest Day of Each Month
Jul: 161.8 mm (6.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 39.9 mm (1.6 in) | 30 January 1947 |
| Feb | 42.2 mm (1.7 in) | 12 February 2019 |
| Mar | 56.4 mm (2.2 in) | 30 March 1960 |
| Apr | 97.8 mm (3.9 in) | 21 April 1973 |
| May | 73.9 mm (2.9 in) | 13 May 1978 |
| Jun | 141.0 mm (5.6 in) | 21 June 1997 |
| Jul | 161.8 mm (6.4 in) | 18 July 1964 |
| Aug | 96.5 mm (3.8 in) | 7 August 1998 |
| Sep | 78.2 mm (3.1 in) | 18 September 1972 |
| Oct | 59.7 mm (2.4 in) | 4 October 1991 |
| Nov | 62.5 mm (2.5 in) | 1 November 1982 |
| Dec | 41.7 mm (1.6 in) | 15 December 1971 |
Period of Record Coverage
1946 to 2019| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1946 | 80 | 22% | No |
| 1947 | 364 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 359 | 98% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 362 | 99% | Yes |
| 1970 | 359 | 98% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 363 | 99% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 359 | 98% | Yes |
| 1983 | 352 | 96% | Yes |
| 1984 | 361 | 99% | Yes |
| 1985 | 360 | 99% | Yes |
| 1986 | 354 | 97% | Yes |
| 1987 | 360 | 99% | Yes |
| 1988 | 361 | 99% | Yes |
| 1989 | 361 | 99% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 361 | 99% | Yes |
| 1994 | 360 | 99% | Yes |
| 1995 | 359 | 98% | Yes |
| 1996 | 360 | 98% | Yes |
| 1997 | 347 | 95% | Yes |
| 1998 | 304 | 83% | No |
| 1999 | 328 | 90% | No |
| 2000 | 325 | 89% | No |
| 2001 | 329 | 90% | Yes |
| 2002 | 331 | 91% | Yes |
| 2003 | 332 | 91% | Yes |
| 2004 | 330 | 90% | Yes |
| 2005 | 336 | 92% | Yes |
| 2006 | 340 | 93% | Yes |
| 2007 | 331 | 91% | Yes |
| 2008 | 357 | 98% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 354 | 97% | Yes |
| 2017 | 354 | 97% | Yes |
| 2018 | 350 | 96% | Yes |
| 2019 | 24 | 7% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 February 2019 | Mt Mary College, US | monthly rain | 42.2 mm (1.7 in) | 1.6 mm (0.06 in) | 21 years | 25 of 100 (Routine) |
| 12 February 2019 | Mt Mary College, US | daily snowfall | 19.6 cm (7.7 in) | 1.8 cm (0.7 in) | 24 years | 17 of 100 (Routine) |
| 1 February 2019 | Mt Mary College, US | daily low min | -30.6 C (-23.1 F) | 5.6 C (10.1 F) | 33 years | 25 of 100 (Routine) |
| 28 December 2018 | Mt Mary College, US | daily high min | 3.9 C (39.0 F) | 1.7 C (3.1 F) | 33 years | 19 of 100 (Routine) |
| 16 November 2018 | Mt Mary College, US | daily snowfall (Tie) | 2.5 cm (1.0 in) | tie | 4 years | 2 of 100 (Routine) |
| 10 November 2018 | Mt Mary College, US | daily snow depth (Tie) | 5.1 cm (2.0 in) | tie | 71 years | 7 of 100 (Routine) |
| 9 November 2018 | Mt Mary College, US | daily snowfall (Tie) | 3.8 cm (1.5 in) | tie | 32 years | 4 of 100 (Routine) |
| 22 October 2018 | Mt Mary College, US | daily low min (Tie) | -3.3 C (26.1 F) | tie | 41 years | 4 of 100 (Routine) |
| 22 October 2018 | Mt Mary College, US | daily low max (Tie) | 5.6 C (42.1 F) | tie | 20 years | 3 of 100 (Routine) |
| 10 October 2018 | Mt Mary College, US | daily high max | 29.4 C (84.9 F) | 1.6 C (2.9 F) | 68 years | 29 of 100 (Routine) |
| 10 October 2018 | Mt Mary College, US | daily high min | 19.4 C (66.9 F) | 2.7 C (4.9 F) | 44 years | 25 of 100 (Routine) |
| 9 October 2018 | Mt Mary College, US | daily high max (Tie) | 28.9 C (84.0 F) | tie | 7 years | 2 of 100 (Routine) |
| 2 October 2018 | Mt Mary College, US | daily rain | 26.7 mm (1.1 in) | 2.6 mm (0.10 in) | 8 years | 12 of 100 (Routine) |
| 6 September 2018 | Mt Mary College, US | daily rain | 52.1 mm (2.1 in) | 20.6 mm (0.8 in) | 35 years | 34 of 100 (Routine) |
| 5 September 2018 | Mt Mary College, US | daily high min (Tie) | 21.7 C (71.1 F) | tie | 35 years | 4 of 100 (Routine) |
| 27 August 2018 | Mt Mary College, US | daily rain | 61.0 mm (2.4 in) | 37.1 mm (1.5 in) | 33 years | 46 of 100 (Notable) |
| 18 June 2018 | Mt Mary College, US | daily high min (Tie) | 22.8 C (73.0 F) | tie | 24 years | 3 of 100 (Routine) |
| 6 June 2018 | Mt Mary College, US | daily low max (Tie) | 16.1 C (61.0 F) | tie | 32 years | 4 of 100 (Routine) |
| 28 May 2018 | Mt Mary College, US | monthly high max (Tie) | 35.0 C (95.0 F) | tie | 29 years | 6 of 100 (Routine) |
| 26 May 2018 | Mt Mary College, US | daily high min (Tie) | 18.3 C (64.9 F) | tie | 52 years | 5 of 100 (Routine) |
Climate Trend
70 complete years, 1947 to 2018| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1947 | 8.3 C | -0.71 C |
| 1948 | 8.3 C | -0.69 C |
| 1949 | 9.1 C | +0.11 C |
| 1950 | 7.3 C | -1.71 C |
| 1951 | 7.0 C | -1.99 C |
| 1952 | 8.7 C | -0.30 C |
| 1953 | 9.3 C | +0.35 C |
| 1954 | 9.0 C | +0.02 C |
| 1955 | 8.9 C | -0.13 C |
| 1956 | 8.5 C | -0.49 C |
| 1957 | 8.2 C | -0.75 C |
| 1958 | 7.9 C | -1.05 C |
| 1959 | 8.2 C | -0.82 C |
| 1960 | 8.0 C | -0.94 C |
| 1961 | 8.7 C | -0.27 C |
| 1962 | 7.9 C | -1.11 C |
| 1963 | 8.0 C | -1.01 C |
| 1964 | 9.6 C | +0.58 C |
| 1965 | 8.3 C | -0.64 C |
| 1966 | 8.5 C | -0.53 C |
| 1967 | 8.4 C | -0.54 C |
| 1968 | 9.4 C | +0.43 C |
| 1969 | 8.5 C | -0.47 C |
| 1970 | 8.9 C | -0.05 C |
| 1971 | 8.9 C | -0.09 C |
| 1972 | 7.6 C | -1.41 C |
| 1973 | 10.0 C | +1.02 C |
| 1974 | 8.9 C | -0.08 C |
| 1975 | 9.4 C | +0.43 C |
| 1976 | 8.6 C | -0.42 C |
| 1977 | 9.3 C | +0.28 C |
| 1978 | 8.2 C | -0.78 C |
| 1979 | 8.1 C | -0.93 C |
| 1980 | 8.8 C | -0.18 C |
| 1981 | 9.3 C | +0.33 C |
| 1982 | 8.6 C | -0.34 C |
| 1983 | 9.5 C | +0.55 C |
| 1984 | 9.4 C | +0.46 C |
| 1985 | 9.0 C | -0.02 C |
| 1986 | 9.6 C | +0.59 C |
| 1987 | 10.9 C | +1.87 C |
| 1988 | 10.0 C | +1.06 C |
| 1989 | 8.7 C | -0.32 C |
| 1990 | 10.6 C | +1.64 C |
| 1991 | 10.3 C | +1.27 C |
| 1992 | 9.0 C | +0.06 C |
| 1993 | 9.1 C | +0.08 C |
| 1994 | 9.5 C | +0.52 C |
| 1995 | 9.4 C | +0.43 C |
| 1996 | 8.2 C | -0.75 C |
| 1997 | 8.9 C | -0.04 C |
| 1999 | 10.3 C | +1.33 C |
| 2000 | 9.6 C | +0.66 C |
| 2001 | 10.3 C | +1.35 C |
| 2002 | 10.0 C | +0.99 C |
| 2003 | 8.9 C | -0.06 C |
| 2004 | 9.3 C | +0.29 C |
| 2005 | 10.0 C | +0.97 C |
| 2006 | 10.3 C | +1.30 C |
| 2007 | 9.8 C | +0.85 C |
| 2008 | 8.3 C | -0.67 C |
| 2009 | 8.4 C | -0.61 C |
| 2010 | 10.0 C | +1.03 C |
| 2011 | 9.2 C | +0.18 C |
| 2012 | 11.0 C | +2.05 C |
| 2013 | 7.9 C | -1.05 C |
| 2014 | 7.1 C | -1.91 C |
| 2015 | 9.1 C | +0.13 C |
| 2017 | 9.8 C | +0.78 C |
| 2018 | 8.6 C | -0.43 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1947 to 2018. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 70 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.2 to 0.5) per decade | 1947 to 2018 | 70 | Rise |
| Mean daily maximum | 0.14 C (0.04 to 0.23) per decade | 0.2 F (0.1 to 0.4) per decade | 1947 to 2018 | 70 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.6) per decade | 1947 to 2018 | 70 | 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
1946 to 2019| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1988 | 35.6 C (96.1 F) | 74 |
| Coldest night (TNn) | -32.8 C (-27.0 F) | 1951 | -24.4 C (-11.9 F) | 74 |
| Wettest day (Rx1day) | 161.8 mm (6.4 in) | 1964 | 54.9 mm (2.2 in) | 74 |
| Wettest five days (Rx5day) | 179.8 mm (7.1 in) | 1964 | 87.3 mm (3.4 in) | 74 |
| Longest dry spell (CDD) | 50 days | 1969 | 20 days | 74 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1946 | 23.9 C (75.0 F) |
| 1947 | 37.8 C (100.0 F) |
| 1948 | 38.3 C (100.9 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 32.2 C (90.0 F) |
| 1951 | 32.2 C (90.0 F) |
| 1952 | 33.3 C (91.9 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 34.4 C (93.9 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 34.4 C (93.9 F) |
| 1957 | 33.9 C (93.0 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | 33.9 C (93.0 F) |
| 1962 | 35.6 C (96.1 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 35.6 C (96.1 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 32.8 C (91.0 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 33.9 C (93.0 F) |
| 1976 | 38.3 C (100.9 F) |
| 1977 | 38.3 C (100.9 F) |
| 1978 | 33.9 C (93.0 F) |
| 1979 | 33.3 C (91.9 F) |
| 1980 | 36.7 C (98.1 F) |
| 1981 | 35.0 C (95.0 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 35.6 C (96.1 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 38.3 C (100.9 F) |
| 1988 | 42.2 C (108.0 F) |
| 1989 | 36.7 C (98.1 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 33.9 C (93.0 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 37.8 C (100.0 F) |
| 1995 | 42.2 C (108.0 F) |
| 1996 | 36.1 C (97.0 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 36.1 C (97.0 F) |
| 1999 | 39.4 C (102.9 F) |
| 2000 | 34.4 C (93.9 F) |
| 2001 | 38.9 C (102.0 F) |
| 2002 | 37.8 C (100.0 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 33.3 C (91.9 F) |
| 2005 | 37.2 C (99.0 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 36.1 C (97.0 F) |
| 2008 | 35.0 C (95.0 F) |
| 2009 | 35.0 C (95.0 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 37.8 C (100.0 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 35.6 C (96.1 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 34.4 C (93.9 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 35.0 C (95.0 F) |
| 2018 | 35.0 C (95.0 F) |
| 2019 | 6.7 C (44.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1946 | -22.8 C (-9.0 F) |
| 1947 | -25.6 C (-14.1 F) |
| 1948 | -30.0 C (-22.0 F) |
| 1949 | -25.0 C (-13.0 F) |
| 1950 | -25.6 C (-14.1 F) |
| 1951 | -32.8 C (-27.0 F) |
| 1952 | -24.4 C (-11.9 F) |
| 1953 | -22.2 C (-8.0 F) |
| 1954 | -26.1 C (-15.0 F) |
| 1955 | -23.9 C (-11.0 F) |
| 1956 | -21.7 C (-7.1 F) |
| 1957 | -25.6 C (-14.1 F) |
| 1958 | -24.4 C (-11.9 F) |
| 1959 | -27.2 C (-17.0 F) |
| 1960 | -23.3 C (-9.9 F) |
| 1961 | -23.9 C (-11.0 F) |
| 1962 | -26.1 C (-15.0 F) |
| 1963 | -31.1 C (-24.0 F) |
| 1964 | -20.6 C (-5.1 F) |
| 1965 | -27.8 C (-18.0 F) |
| 1966 | -30.0 C (-22.0 F) |
| 1967 | -27.8 C (-18.0 F) |
| 1968 | -26.7 C (-16.1 F) |
| 1969 | -24.4 C (-11.9 F) |
| 1970 | -26.1 C (-15.0 F) |
| 1971 | -25.6 C (-14.1 F) |
| 1972 | -30.0 C (-22.0 F) |
| 1973 | -20.6 C (-5.1 F) |
| 1974 | -25.0 C (-13.0 F) |
| 1975 | -23.9 C (-11.0 F) |
| 1976 | -24.4 C (-11.9 F) |
| 1977 | -28.9 C (-20.0 F) |
| 1978 | -22.8 C (-9.0 F) |
| 1979 | -26.7 C (-16.1 F) |
| 1980 | -21.1 C (-6.0 F) |
| 1981 | -22.8 C (-9.0 F) |
| 1982 | -31.1 C (-24.0 F) |
| 1983 | -30.0 C (-22.0 F) |
| 1984 | -27.8 C (-18.0 F) |
| 1985 | -32.2 C (-26.0 F) |
| 1986 | -21.7 C (-7.1 F) |
| 1987 | -22.8 C (-9.0 F) |
| 1988 | -24.4 C (-11.9 F) |
| 1989 | -27.2 C (-17.0 F) |
| 1990 | -22.2 C (-8.0 F) |
| 1991 | -21.1 C (-6.0 F) |
| 1992 | -21.1 C (-6.0 F) |
| 1993 | -20.6 C (-5.1 F) |
| 1994 | -31.1 C (-24.0 F) |
| 1995 | -21.1 C (-6.0 F) |
| 1996 | -31.7 C (-25.1 F) |
| 1997 | -23.3 C (-9.9 F) |
| 1998 | -20.6 C (-5.1 F) |
| 1999 | -25.0 C (-13.0 F) |
| 2000 | -22.2 C (-8.0 F) |
| 2001 | -21.1 C (-6.0 F) |
| 2002 | -20.6 C (-5.1 F) |
| 2003 | -21.1 C (-6.0 F) |
| 2004 | -24.4 C (-11.9 F) |
| 2005 | -19.4 C (-2.9 F) |
| 2006 | -25.6 C (-14.1 F) |
| 2007 | -25.6 C (-14.1 F) |
| 2008 | -22.2 C (-8.0 F) |
| 2009 | -25.6 C (-14.1 F) |
| 2010 | -17.8 C (0.0 F) |
| 2011 | -22.8 C (-9.0 F) |
| 2012 | -19.4 C (-2.9 F) |
| 2013 | -22.2 C (-8.0 F) |
| 2014 | -26.1 C (-15.0 F) |
| 2015 | -23.3 C (-9.9 F) |
| 2016 | -21.7 C (-7.1 F) |
| 2017 | -21.7 C (-7.1 F) |
| 2018 | -23.3 C (-9.9 F) |
| 2019 | -30.6 C (-23.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1946 | 24.1 mm (0.9 in) |
| 1947 | 63.2 mm (2.5 in) |
| 1948 | 40.6 mm (1.6 in) |
| 1949 | 73.7 mm (2.9 in) |
| 1950 | 98.3 mm (3.9 in) |
| 1951 | 36.8 mm (1.4 in) |
| 1952 | 116.1 mm (4.6 in) |
| 1953 | 54.6 mm (2.1 in) |
| 1954 | 43.9 mm (1.7 in) |
| 1955 | 46.0 mm (1.8 in) |
| 1956 | 47.2 mm (1.9 in) |
| 1957 | 32.5 mm (1.3 in) |
| 1958 | 58.7 mm (2.3 in) |
| 1959 | 48.5 mm (1.9 in) |
| 1960 | 86.6 mm (3.4 in) |
| 1961 | 81.8 mm (3.2 in) |
| 1962 | 39.4 mm (1.6 in) |
| 1963 | 26.9 mm (1.1 in) |
| 1964 | 161.8 mm (6.4 in) |
| 1965 | 43.9 mm (1.7 in) |
| 1966 | 34.8 mm (1.4 in) |
| 1967 | 33.8 mm (1.3 in) |
| 1968 | 59.4 mm (2.3 in) |
| 1969 | 51.6 mm (2.0 in) |
| 1970 | 55.1 mm (2.2 in) |
| 1971 | 45.0 mm (1.8 in) |
| 1972 | 78.2 mm (3.1 in) |
| 1973 | 97.8 mm (3.9 in) |
| 1974 | 61.0 mm (2.4 in) |
| 1975 | 41.7 mm (1.6 in) |
| 1976 | 50.8 mm (2.0 in) |
| 1977 | 37.3 mm (1.5 in) |
| 1978 | 73.9 mm (2.9 in) |
| 1979 | 56.9 mm (2.2 in) |
| 1980 | 49.5 mm (1.9 in) |
| 1981 | 56.6 mm (2.2 in) |
| 1982 | 62.5 mm (2.5 in) |
| 1983 | 78.7 mm (3.1 in) |
| 1984 | 47.0 mm (1.9 in) |
| 1985 | 54.6 mm (2.1 in) |
| 1986 | 88.4 mm (3.5 in) |
| 1987 | 40.4 mm (1.6 in) |
| 1988 | 74.7 mm (2.9 in) |
| 1989 | 49.0 mm (1.9 in) |
| 1990 | 61.5 mm (2.4 in) |
| 1991 | 59.7 mm (2.4 in) |
| 1992 | 37.1 mm (1.5 in) |
| 1993 | 42.4 mm (1.7 in) |
| 1994 | 55.9 mm (2.2 in) |
| 1995 | 52.6 mm (2.1 in) |
| 1996 | 68.1 mm (2.7 in) |
| 1997 | 141.0 mm (5.6 in) |
| 1998 | 96.5 mm (3.8 in) |
| 1999 | 62.2 mm (2.4 in) |
| 2000 | 58.7 mm (2.3 in) |
| 2001 | 54.1 mm (2.1 in) |
| 2002 | 62.0 mm (2.4 in) |
| 2003 | 31.5 mm (1.2 in) |
| 2004 | 59.7 mm (2.4 in) |
| 2005 | 41.9 mm (1.6 in) |
| 2006 | 57.2 mm (2.3 in) |
| 2007 | 45.7 mm (1.8 in) |
| 2008 | 52.1 mm (2.1 in) |
| 2009 | 99.8 mm (3.9 in) |
| 2010 | 137.4 mm (5.4 in) |
| 2011 | 58.4 mm (2.3 in) |
| 2012 | 38.1 mm (1.5 in) |
| 2013 | 51.8 mm (2.0 in) |
| 2014 | 61.0 mm (2.4 in) |
| 2015 | 63.0 mm (2.5 in) |
| 2016 | 50.8 mm (2.0 in) |
| 2017 | 48.8 mm (1.9 in) |
| 2018 | 97.3 mm (3.8 in) |
| 2019 | 42.2 mm (1.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1946 | 34.3 mm (1.4 in) |
| 1947 | 63.2 mm (2.5 in) |
| 1948 | 75.6 mm (3.0 in) |
| 1949 | 111.8 mm (4.4 in) |
| 1950 | 169.2 mm (6.7 in) |
| 1951 | 65.5 mm (2.6 in) |
| 1952 | 163.1 mm (6.4 in) |
| 1953 | 113.2 mm (4.5 in) |
| 1954 | 93.0 mm (3.7 in) |
| 1955 | 104.7 mm (4.1 in) |
| 1956 | 80.2 mm (3.2 in) |
| 1957 | 43.5 mm (1.7 in) |
| 1958 | 68.9 mm (2.7 in) |
| 1959 | 112.0 mm (4.4 in) |
| 1960 | 100.3 mm (3.9 in) |
| 1961 | 109.2 mm (4.3 in) |
| 1962 | 50.1 mm (2.0 in) |
| 1963 | 40.6 mm (1.6 in) |
| 1964 | 179.8 mm (7.1 in) |
| 1965 | 112.0 mm (4.4 in) |
| 1966 | 41.9 mm (1.6 in) |
| 1967 | 77.5 mm (3.1 in) |
| 1968 | 115.8 mm (4.6 in) |
| 1969 | 95.2 mm (3.7 in) |
| 1970 | 86.8 mm (3.4 in) |
| 1971 | 52.1 mm (2.1 in) |
| 1972 | 115.3 mm (4.5 in) |
| 1973 | 108.2 mm (4.3 in) |
| 1974 | 76.0 mm (3.0 in) |
| 1975 | 82.6 mm (3.3 in) |
| 1976 | 91.2 mm (3.6 in) |
| 1977 | 73.4 mm (2.9 in) |
| 1978 | 98.6 mm (3.9 in) |
| 1979 | 67.8 mm (2.7 in) |
| 1980 | 82.5 mm (3.2 in) |
| 1981 | 88.1 mm (3.5 in) |
| 1982 | 67.6 mm (2.7 in) |
| 1983 | 86.6 mm (3.4 in) |
| 1984 | 67.1 mm (2.6 in) |
| 1985 | 81.0 mm (3.2 in) |
| 1986 | 117.6 mm (4.6 in) |
| 1987 | 83.4 mm (3.3 in) |
| 1988 | 77.2 mm (3.0 in) |
| 1989 | 66.3 mm (2.6 in) |
| 1990 | 90.4 mm (3.6 in) |
| 1991 | 64.5 mm (2.5 in) |
| 1992 | 51.6 mm (2.0 in) |
| 1993 | 71.9 mm (2.8 in) |
| 1994 | 85.6 mm (3.4 in) |
| 1995 | 62.3 mm (2.5 in) |
| 1996 | 111.6 mm (4.4 in) |
| 1997 | 170.0 mm (6.7 in) |
| 1998 | 176.8 mm (7.0 in) |
| 1999 | 114.1 mm (4.5 in) |
| 2000 | 111.5 mm (4.4 in) |
| 2001 | 62.0 mm (2.4 in) |
| 2002 | 112.5 mm (4.4 in) |
| 2003 | 62.7 mm (2.5 in) |
| 2004 | 101.0 mm (4.0 in) |
| 2005 | 65.8 mm (2.6 in) |
| 2006 | 88.0 mm (3.5 in) |
| 2007 | 119.5 mm (4.7 in) |
| 2008 | 145.4 mm (5.7 in) |
| 2009 | 119.1 mm (4.7 in) |
| 2010 | 158.7 mm (6.2 in) |
| 2011 | 87.8 mm (3.5 in) |
| 2012 | 67.8 mm (2.7 in) |
| 2013 | 101.1 mm (4.0 in) |
| 2014 | 108.0 mm (4.3 in) |
| 2015 | 94.2 mm (3.7 in) |
| 2016 | 69.6 mm (2.7 in) |
| 2017 | 73.4 mm (2.9 in) |
| 2018 | 123.2 mm (4.9 in) |
| 2019 | 53.7 mm (2.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1946 | 14 days |
| 1947 | 18 days |
| 1948 | 22 days |
| 1949 | 18 days |
| 1950 | 19 days |
| 1951 | 15 days |
| 1952 | 30 days |
| 1953 | 22 days |
| 1954 | 19 days |
| 1955 | 27 days |
| 1956 | 17 days |
| 1957 | 24 days |
| 1958 | 30 days |
| 1959 | 21 days |
| 1960 | 26 days |
| 1961 | 23 days |
| 1962 | 20 days |
| 1963 | 16 days |
| 1964 | 24 days |
| 1965 | 21 days |
| 1966 | 23 days |
| 1967 | 19 days |
| 1968 | 23 days |
| 1969 | 50 days |
| 1970 | 18 days |
| 1971 | 23 days |
| 1972 | 19 days |
| 1973 | 16 days |
| 1974 | 12 days |
| 1975 | 17 days |
| 1976 | 22 days |
| 1977 | 18 days |
| 1978 | 23 days |
| 1979 | 32 days |
| 1980 | 19 days |
| 1981 | 25 days |
| 1982 | 18 days |
| 1983 | 15 days |
| 1984 | 20 days |
| 1985 | 14 days |
| 1986 | 24 days |
| 1987 | 28 days |
| 1988 | 25 days |
| 1989 | 28 days |
| 1990 | 15 days |
| 1991 | 32 days |
| 1992 | 18 days |
| 1993 | 30 days |
| 1994 | 24 days |
| 1995 | 41 days |
| 1996 | 28 days |
| 1997 | 16 days |
| 1998 | 21 days |
| 1999 | 25 days |
| 2000 | 15 days |
| 2001 | 18 days |
| 2002 | 14 days |
| 2003 | 19 days |
| 2004 | 19 days |
| 2005 | 15 days |
| 2006 | 18 days |
| 2007 | 25 days |
| 2008 | 20 days |
| 2009 | 26 days |
| 2010 | 21 days |
| 2011 | 17 days |
| 2012 | 26 days |
| 2013 | 18 days |
| 2014 | 11 days |
| 2015 | 21 days |
| 2016 | 19 days |
| 2017 | 18 days |
| 2018 | 19 days |
| 2019 | 4 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
70 years with a frostAcross 70 years with a frost, the median last spring frost at Mt Mary College falls on 1 May and the median first autumn frost on 12 October, which leaves a median of 164 days between them.
In 1987 to 2018 the median growing season was 173 days. That is 16 days more than in 1947 to 1976.
Fitted over all years, the growing season changes by +4.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1947 to 1976) | Recent period (1987 to 2018) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 May | 8 May | 26 April | 12 days earlier | -2.3 days per decade |
| First autumn frost | 12 October | 6 October | 14 October | 8 days later | +2.3 days per decade |
| Growing days | 164 days | 157 days | 173 days | 16 days more | +4.6 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
71 years, 1948 to 2018A day with at least 54.6 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 165.5 mm (6.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 54.6 mm (2.1 in) | |
| 5 years | 75.2 mm (3.0 in) | |
| 10 years | 91.9 mm (3.6 in) | |
| 25 years | 117.2 mm (4.6 in) | |
| 50 years | 139.6 mm (5.5 in) | |
| 100 years | 165.5 mm (6.5 in) | Longer than the 71 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, 71 years of values from 1948 to 2018.
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: 161.8 mm (6.4 in) in 1964; 141.0 mm (5.6 in) in 1997; 137.4 mm (5.4 in) in 2010.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Mt Mary College, at 1964 and 2009. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1964 ran 0.3 C (0.6 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2009 ran 0.4 C (0.7 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1964 | +0.3 | +0.6 | likely | 5 |
| 2009 | -0.4 | -0.7 | likely | 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.
Climate Twins
2003 to 2018 against 1961 to 1990Over 2003 to 2018, Mt Mary College had a mean temperature of 9.2 C (48.5 F) and 866.3 mm (34.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Defiance (United States, 360 km away), Gull Lake Biological STN (United States, 229 km away) and Windsor A (Canada, 424 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Defiance | United States | 360 km (224 mi) | 9.1 C (48.3 F) | 880.9 mm (34.7 in) | 0.36 |
| Gull Lake Biological STN | United States | 229 km (142 mi) | 9.2 C (48.6 F) | 906.7 mm (35.7 in) | 0.39 |
| Windsor A | Canada | 424 km (263 mi) | 8.9 C (48.1 F) | 887.9 mm (35.0 in) | 0.41 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).