Onaway 4N Weather Records (USC00206184)
Record envelope, standing records and threshold days for Onaway 4N (USC00206184), Michigan, United States, with 96 years of record.
Key Facts for Onaway 4N
- Onaway 4N (USC00206184) is a weather station in Michigan, United States at 45.41 latitude and -84.22 longitude, 227 m (745 ft) above sea level.
- The station reports from 1928 to 2023, 96 years of record.
- 1,464 records set at Onaway 4N still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Onaway 4N set a daily record precipitation of 28.4 mm (1.1 in) on 26 October 2023.
About the Station
- Location: Michigan, United States, 45.41 latitude, -84.22 longitude.
- Elevation: 227 m (745 ft).
- Period of record: 1928 to 2023, 96 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 | 12.8 C (55.0 F) | -34.4 C (-29.9 F) | n/a | n/a |
| Feb | 17.8 C (64.0 F) | -37.2 C (-35.0 F) | n/a | n/a |
| Mar | 30.6 C (87.1 F) | -30.6 C (-23.1 F) | n/a | n/a |
| Apr | 32.8 C (91.0 F) | -21.1 C (-6.0 F) | n/a | n/a |
| May | 35.0 C (95.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jun | 38.9 C (102.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Jul | 41.1 C (106.0 F) | 1.7 C (35.1 F) | n/a | n/a |
| Aug | 38.3 C (100.9 F) | 0.0 C (32.0 F) | n/a | n/a |
| Sep | 36.1 C (97.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Oct | 31.7 C (89.1 F) | -10.6 C (12.9 F) | n/a | n/a |
| Nov | 25.0 C (77.0 F) | -22.8 C (-9.0 F) | n/a | n/a |
| Dec | 17.2 C (63.0 F) | -30.6 C (-23.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1928 | 6 |
| 1929 | 23 |
| 1930 | 23 |
| 1931 | 24 |
| 1932 | 13 |
| 1933 | 41 |
| 1934 | 37 |
| 1935 | 17 |
| 1936 | 31 |
| 1937 | 17 |
| 1938 | 14 |
| 1939 | 22 |
| 1940 | 40 |
| 1941 | 34 |
| 1942 | 14 |
| 1943 | 26 |
| 1944 | 21 |
| 1945 | 21 |
| 1946 | 17 |
| 1947 | 30 |
| 1948 | 15 |
| 1949 | 9 |
| 1950 | 25 |
| 1951 | 19 |
| 1952 | 9 |
| 1953 | 20 |
| 1954 | 10 |
| 1955 | 19 |
| 1956 | 22 |
| 1957 | 7 |
| 1958 | 13 |
| 1959 | 17 |
| 1960 | 8 |
| 1961 | 10 |
| 1962 | 14 |
| 1963 | 21 |
| 1964 | 19 |
| 1965 | 22 |
| 1966 | 16 |
| 1967 | 11 |
| 1968 | 12 |
| 1969 | 8 |
| 1970 | 6 |
| 1971 | 9 |
| 1972 | 8 |
| 1973 | 17 |
| 1974 | 14 |
| 1975 | 11 |
| 1976 | 13 |
| 1977 | 14 |
| 1978 | 4 |
| 1979 | 11 |
| 1980 | 10 |
| 1981 | 16 |
| 1982 | 17 |
| 1983 | 8 |
| 1984 | 14 |
| 1985 | 12 |
| 1986 | 9 |
| 1987 | 12 |
| 1988 | 18 |
| 1989 | 14 |
| 1990 | 14 |
| 1991 | 20 |
| 1992 | 9 |
| 1993 | 6 |
| 1994 | 14 |
| 1995 | 6 |
| 1996 | 10 |
| 1997 | 7 |
| 1998 | 12 |
| 1999 | 18 |
| 2000 | 18 |
| 2001 | 5 |
| 2002 | 12 |
| 2003 | 12 |
| 2004 | 11 |
| 2005 | 18 |
| 2006 | 14 |
| 2007 | 14 |
| 2008 | 17 |
| 2009 | 16 |
| 2010 | 13 |
| 2011 | 3 |
| 2012 | 24 |
| 2013 | 9 |
| 2014 | 22 |
| 2015 | 18 |
| 2016 | 6 |
| 2017 | 16 |
| 2018 | 16 |
| 2019 | 11 |
| 2020 | 12 |
| 2021 | 13 |
| 2022 | 10 |
| 2023 | 4 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1961-09-14 | Record daily precipitation | Record daily precipitation 94.5 mm (3.7 in) |
| 1971-03-07 | Record daily snowfall | Record daily snowfall 40.6 cm (16.0 in) |
| 1971-03-07 | Record snow depth | Record snow depth 94.0 cm (37.0 in) |
| 1971-03-08 | Record snow depth | Record snow depth 96.5 cm (38.0 in) |
| 1977-12-09 | Record daily snowfall | Record daily snowfall 45.7 cm (18.0 in) |
| 1978-01-26 | Record daily snowfall | Record daily snowfall 48.3 cm (19.0 in) |
| 1979-02-17 | Record low minimum temperature | Record low minimum temperature -37.2 C (-35.0 F) |
| 2009-08-15 | Record daily precipitation | Record daily precipitation 95.0 mm (3.7 in) |
Wettest Day of Each Month
Aug: 95.0 mm (3.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 48.3 mm (1.9 in) | 26 January 1964 |
| Feb | 53.6 mm (2.1 in) | 25 February 1965 |
| Mar | 44.5 mm (1.8 in) | 31 March 1998 |
| Apr | 48.0 mm (1.9 in) | 29 April 2020 |
| May | 51.1 mm (2.0 in) | 1 May 1997 |
| Jun | 83.8 mm (3.3 in) | 28 June 1931 |
| Jul | 92.7 mm (3.6 in) | 15 July 1970 |
| Aug | 95.0 mm (3.7 in) | 15 August 2009 |
| Sep | 94.5 mm (3.7 in) | 14 September 1961 |
| Oct | 70.1 mm (2.8 in) | 20 October 2011 |
| Nov | 63.5 mm (2.5 in) | 9 November 1989 |
| Dec | 54.9 mm (2.2 in) | 4 December 1970 |
Period of Record Coverage
1928 to 2023| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1928 | 244 | 67% | No |
| 1929 | 364 | 100% | Yes |
| 1930 | 362 | 99% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 362 | 99% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 331 | 90% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 363 | 99% | Yes |
| 1939 | 361 | 99% | Yes |
| 1940 | 364 | 99% | Yes |
| 1941 | 224 | 61% | No |
| 1942 | 240 | 66% | No |
| 1943 | 365 | 100% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 362 | 99% | Yes |
| 1946 | 361 | 99% | Yes |
| 1947 | 362 | 99% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 360 | 99% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 350 | 96% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 355 | 97% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 328 | 90% | No |
| 1968 | 358 | 98% | Yes |
| 1969 | 362 | 99% | Yes |
| 1970 | 357 | 98% | Yes |
| 1971 | 355 | 97% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 355 | 97% | Yes |
| 1976 | 271 | 74% | No |
| 1977 | 358 | 98% | Yes |
| 1978 | 345 | 95% | Yes |
| 1979 | 347 | 95% | Yes |
| 1980 | 355 | 97% | Yes |
| 1981 | 339 | 93% | Yes |
| 1982 | 342 | 94% | Yes |
| 1983 | 326 | 89% | No |
| 1984 | 326 | 89% | No |
| 1985 | 364 | 100% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 361 | 99% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 352 | 96% | Yes |
| 1993 | 354 | 97% | Yes |
| 1994 | 357 | 98% | Yes |
| 1995 | 364 | 100% | Yes |
| 1996 | 357 | 98% | Yes |
| 1997 | 352 | 96% | Yes |
| 1998 | 353 | 97% | Yes |
| 1999 | 346 | 95% | Yes |
| 2000 | 359 | 98% | Yes |
| 2001 | 258 | 71% | No |
| 2002 | 332 | 91% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 363 | 99% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 361 | 99% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 361 | 99% | Yes |
| 2022 | 275 | 75% | No |
| 2023 | 247 | 68% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 26 October 2023 | Onaway 4N, US | daily rain | 28.4 mm (1.1 in) | 10.6 mm (0.4 in) | 90 years | 50 of 100 (Notable) |
| 4 September 2023 | Onaway 4N, US | daily high max (Tie) | 33.3 C (91.9 F) | tie | 93 years | 9 of 100 (Routine) |
| 12 July 2023 | Onaway 4N, US | daily low max | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 36 years | 22 of 100 (Routine) |
| 1 June 2023 | Onaway 4N, US | daily high max (Tie) | 31.7 C (89.1 F) | tie | 8 years | 2 of 100 (Routine) |
| 2 May 2023 | Onaway 4N, US | daily low max | 4.4 C (39.9 F) | 1.7 C (3.1 F) | 76 years | 33 of 100 (Routine) |
| 15 April 2023 | Onaway 4N, US | daily high max | 30.6 C (87.1 F) | 2.3 C (4.1 F) | 20 years | 18 of 100 (Routine) |
| 14 April 2023 | Onaway 4N, US | daily high min (Tie) | 8.3 C (46.9 F) | tie | 16 years | 3 of 100 (Routine) |
| 5 April 2023 | Onaway 4N, US | daily rain | 29.7 mm (1.2 in) | 6.1 mm (0.24 in) | 45 years | 30 of 100 (Routine) |
| 25 March 2023 | Onaway 4N, US | daily rain | 22.1 mm (0.9 in) | 3.8 mm (0.15 in) | 53 years | 20 of 100 (Routine) |
| 18 March 2023 | Onaway 4N, US | daily rain | 41.4 mm (1.6 in) | 27.9 mm (1.1 in) | 57 years | 66 of 100 (Major) |
| 14 February 2023 | Onaway 4N, US | daily high max | 12.2 C (54.0 F) | 1.1 C (2.0 F) | 20 years | 17 of 100 (Routine) |
| 9 February 2023 | Onaway 4N, US | daily rain | 40.1 mm (1.6 in) | 28.2 mm (1.1 in) | 56 years | 66 of 100 (Major) |
| 5 January 2023 | Onaway 4N, US | daily snowfall | 11.2 cm (4.4 in) | 1.0 cm (0.4 in) | 93 years | 39 of 100 (Notable) |
| 29 December 2022 | Onaway 4N, US | daily high min (Tie) | 0.0 C (32.0 F) | tie | 36 years | 4 of 100 (Routine) |
| 28 December 2022 | Onaway 4N, US | daily snow depth (Tie) | 43.2 cm (17.0 in) | tie | 71 years | 7 of 100 (Routine) |
| 27 December 2022 | Onaway 4N, US | daily snow depth (Tie) | 45.7 cm (18.0 in) | tie | 8 years | 2 of 100 (Routine) |
| 26 December 2022 | Onaway 4N, US | daily snow depth (Tie) | 48.3 cm (19.0 in) | tie | 8 years | 2 of 100 (Routine) |
| 23 December 2022 | Onaway 4N, US | daily snowfall | 22.9 cm (9.0 in) | 7.7 cm (3.0 in) | 88 years | 51 of 100 (Notable) |
| 23 December 2022 | Onaway 4N, US | daily rain | 29.2 mm (1.1 in) | 8.1 mm (0.32 in) | 80 years | 49 of 100 (Notable) |
| 19 November 2022 | Onaway 4N, US | daily rain | 27.9 mm (1.1 in) | 9.6 mm (0.38 in) | 19 years | 29 of 100 (Routine) |
Climate Trend
82 complete years, 1929 to 2021| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1929 | 5.3 C | -1.68 C |
| 1930 | 6.6 C | -0.29 C |
| 1931 | 9.0 C | +2.09 C |
| 1932 | 7.3 C | +0.39 C |
| 1933 | 7.2 C | +0.24 C |
| 1934 | 6.1 C | -0.83 C |
| 1935 | 6.1 C | -0.87 C |
| 1937 | 6.3 C | -0.65 C |
| 1938 | 6.8 C | -0.11 C |
| 1939 | 5.4 C | -1.58 C |
| 1940 | 4.6 C | -2.35 C |
| 1943 | 5.9 C | -1.02 C |
| 1944 | 7.2 C | +0.31 C |
| 1945 | 6.3 C | -0.60 C |
| 1946 | 6.9 C | +0.00 C |
| 1947 | 6.6 C | -0.30 C |
| 1948 | 6.4 C | -0.55 C |
| 1949 | 7.3 C | +0.40 C |
| 1950 | 5.4 C | -1.57 C |
| 1951 | 5.9 C | -1.07 C |
| 1952 | 7.0 C | +0.11 C |
| 1953 | 7.8 C | +0.84 C |
| 1954 | 6.6 C | -0.38 C |
| 1955 | 7.6 C | +0.69 C |
| 1957 | 6.6 C | -0.30 C |
| 1958 | 6.0 C | -0.94 C |
| 1959 | 6.5 C | -0.39 C |
| 1961 | 6.8 C | -0.09 C |
| 1962 | 6.0 C | -0.89 C |
| 1963 | 6.1 C | -0.85 C |
| 1964 | 7.3 C | +0.41 C |
| 1965 | 6.2 C | -0.73 C |
| 1966 | 6.9 C | -0.07 C |
| 1968 | 7.3 C | +0.34 C |
| 1969 | 6.6 C | -0.38 C |
| 1970 | 6.7 C | -0.21 C |
| 1971 | 6.8 C | -0.16 C |
| 1972 | 5.7 C | -1.26 C |
| 1973 | 8.0 C | +1.08 C |
| 1974 | 6.7 C | -0.21 C |
| 1975 | 7.6 C | +0.63 C |
| 1977 | 6.8 C | -0.09 C |
| 1978 | 6.4 C | -0.56 C |
| 1979 | 6.4 C | -0.55 C |
| 1980 | 6.1 C | -0.84 C |
| 1982 | 6.7 C | -0.20 C |
| 1984 | 7.1 C | +0.20 C |
| 1985 | 6.9 C | -0.03 C |
| 1986 | 7.6 C | +0.69 C |
| 1987 | 8.8 C | +1.86 C |
| 1988 | 7.6 C | +0.62 C |
| 1989 | 6.7 C | -0.27 C |
| 1990 | 8.2 C | +1.31 C |
| 1991 | 8.3 C | +1.34 C |
| 1992 | 6.6 C | -0.35 C |
| 1993 | 6.8 C | -0.18 C |
| 1994 | 6.8 C | -0.09 C |
| 1995 | 7.0 C | +0.06 C |
| 1996 | 6.2 C | -0.69 C |
| 1997 | 6.9 C | -0.05 C |
| 1998 | 9.3 C | +2.35 C |
| 1999 | 8.6 C | +1.64 C |
| 2000 | 8.0 C | +1.09 C |
| 2003 | 6.7 C | -0.21 C |
| 2004 | 7.2 C | +0.23 C |
| 2005 | 7.9 C | +0.98 C |
| 2006 | 8.4 C | +1.47 C |
| 2007 | 7.9 C | +0.97 C |
| 2008 | 6.8 C | -0.17 C |
| 2009 | 6.2 C | -0.74 C |
| 2010 | 8.2 C | +1.27 C |
| 2011 | 7.3 C | +0.38 C |
| 2012 | 8.8 C | +1.86 C |
| 2013 | 6.3 C | -0.66 C |
| 2014 | 5.0 C | -1.89 C |
| 2015 | 6.9 C | -0.05 C |
| 2016 | 8.1 C | +1.12 C |
| 2017 | 7.4 C | +0.44 C |
| 2018 | 6.9 C | -0.06 C |
| 2019 | 5.8 C | -1.13 C |
| 2020 | 7.5 C | +0.56 C |
| 2021 | 8.0 C | +1.03 C |
The annual mean temperature here has risen by 0.12 C (0.05 to 0.19) per decade over 1929 to 2021. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.12 C (0.05 to 0.19) per decade | 0.2 F (0.1 to 0.3) per decade | 1929 to 2021 | 82 | Rise |
| Mean daily maximum | 0.09 C (0.01 to 0.17) per decade | 0.17 F (0.02 to 0.31) per decade | 1929 to 2021 | 82 | Rise |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1929 to 2021 | 82 | 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
1928 to 2023| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.1 C (106.0 F) | 1936 | 34.4 C (93.9 F) | 96 |
| Coldest night (TNn) | -37.2 C (-35.0 F) | 1979 | -27.2 C (-17.0 F) | 96 |
| Wettest day (Rx1day) | 95.0 mm (3.7 in) | 2009 | 44.1 mm (1.7 in) | 96 |
| Wettest five days (Rx5day) | 162.3 mm (6.4 in) | 1968 | 68.6 mm (2.7 in) | 96 |
| Longest dry spell (CDD) | 33 days | 2004 | 18 days | 96 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1928 | 34.4 C (93.9 F) |
| 1929 | 34.4 C (93.9 F) |
| 1930 | 34.4 C (93.9 F) |
| 1931 | 37.8 C (100.0 F) |
| 1932 | 35.0 C (95.0 F) |
| 1933 | 38.9 C (102.0 F) |
| 1934 | 37.8 C (100.0 F) |
| 1935 | 37.2 C (99.0 F) |
| 1936 | 41.1 C (106.0 F) |
| 1937 | 36.7 C (98.1 F) |
| 1938 | 34.4 C (93.9 F) |
| 1939 | 36.1 C (97.0 F) |
| 1940 | 31.1 C (88.0 F) |
| 1941 | 38.3 C (100.9 F) |
| 1942 | 35.0 C (95.0 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 36.7 C (98.1 F) |
| 1945 | 36.7 C (98.1 F) |
| 1946 | 32.8 C (91.0 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 37.2 C (99.0 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 32.8 C (91.0 F) |
| 1951 | 31.7 C (89.1 F) |
| 1952 | 35.6 C (96.1 F) |
| 1953 | 36.1 C (97.0 F) |
| 1954 | 33.3 C (91.9 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 35.0 C (95.0 F) |
| 1957 | 32.8 C (91.0 F) |
| 1958 | 32.8 C (91.0 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 33.3 C (91.9 F) |
| 1962 | 33.9 C (93.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 33.3 C (91.9 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 34.4 C (93.9 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 33.3 C (91.9 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 31.7 C (89.1 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 32.8 C (91.0 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 33.3 C (91.9 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 32.8 C (91.0 F) |
| 1980 | 33.3 C (91.9 F) |
| 1981 | 33.9 C (93.0 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 35.0 C (95.0 F) |
| 1984 | 31.7 C (89.1 F) |
| 1985 | 33.3 C (91.9 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 35.0 C (95.0 F) |
| 1988 | 37.2 C (99.0 F) |
| 1989 | 34.4 C (93.9 F) |
| 1990 | 31.7 C (89.1 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 34.4 C (93.9 F) |
| 1996 | 34.4 C (93.9 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 33.3 C (91.9 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 33.9 C (93.0 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 36.7 C (98.1 F) |
| 2007 | 34.4 C (93.9 F) |
| 2008 | 33.3 C (91.9 F) |
| 2009 | 35.0 C (95.0 F) |
| 2010 | 33.3 C (91.9 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 34.4 C (93.9 F) |
| 2013 | 35.0 C (95.0 F) |
| 2014 | 31.7 C (89.1 F) |
| 2015 | 33.9 C (93.0 F) |
| 2016 | 34.4 C (93.9 F) |
| 2017 | 33.3 C (91.9 F) |
| 2018 | 35.6 C (96.1 F) |
| 2019 | 32.8 C (91.0 F) |
| 2020 | 32.2 C (90.0 F) |
| 2021 | 32.8 C (91.0 F) |
| 2022 | 34.4 C (93.9 F) |
| 2023 | 33.3 C (91.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1928 | -15.0 C (5.0 F) |
| 1929 | -25.0 C (-13.0 F) |
| 1930 | -25.6 C (-14.1 F) |
| 1931 | -21.7 C (-7.1 F) |
| 1932 | -21.7 C (-7.1 F) |
| 1933 | -30.6 C (-23.1 F) |
| 1934 | -33.9 C (-29.0 F) |
| 1935 | -27.8 C (-18.0 F) |
| 1936 | -26.1 C (-15.0 F) |
| 1937 | -22.8 C (-9.0 F) |
| 1938 | -26.1 C (-15.0 F) |
| 1939 | -28.9 C (-20.0 F) |
| 1940 | -26.1 C (-15.0 F) |
| 1941 | -23.9 C (-11.0 F) |
| 1942 | -24.4 C (-11.9 F) |
| 1943 | -32.2 C (-26.0 F) |
| 1944 | -24.4 C (-11.9 F) |
| 1945 | -28.9 C (-20.0 F) |
| 1946 | -26.7 C (-16.1 F) |
| 1947 | -28.9 C (-20.0 F) |
| 1948 | -30.6 C (-23.1 F) |
| 1949 | -24.4 C (-11.9 F) |
| 1950 | -28.3 C (-18.9 F) |
| 1951 | -30.0 C (-22.0 F) |
| 1952 | -25.0 C (-13.0 F) |
| 1953 | -26.1 C (-15.0 F) |
| 1954 | -24.4 C (-11.9 F) |
| 1955 | -23.9 C (-11.0 F) |
| 1956 | -21.1 C (-6.0 F) |
| 1957 | -24.4 C (-11.9 F) |
| 1958 | -27.8 C (-18.0 F) |
| 1959 | -27.2 C (-17.0 F) |
| 1960 | -24.4 C (-11.9 F) |
| 1961 | -29.4 C (-20.9 F) |
| 1962 | -30.6 C (-23.1 F) |
| 1963 | -29.4 C (-20.9 F) |
| 1964 | -23.3 C (-9.9 F) |
| 1965 | -31.7 C (-25.1 F) |
| 1966 | -25.6 C (-14.1 F) |
| 1967 | -28.9 C (-20.0 F) |
| 1968 | -30.0 C (-22.0 F) |
| 1969 | -22.8 C (-9.0 F) |
| 1970 | -27.8 C (-18.0 F) |
| 1971 | -27.8 C (-18.0 F) |
| 1972 | -30.0 C (-22.0 F) |
| 1973 | -27.8 C (-18.0 F) |
| 1974 | -29.4 C (-20.9 F) |
| 1975 | -27.2 C (-17.0 F) |
| 1976 | -30.0 C (-22.0 F) |
| 1977 | -30.0 C (-22.0 F) |
| 1978 | -28.9 C (-20.0 F) |
| 1979 | -37.2 C (-35.0 F) |
| 1980 | -27.8 C (-18.0 F) |
| 1981 | -33.9 C (-29.0 F) |
| 1982 | -32.2 C (-26.0 F) |
| 1983 | -29.4 C (-20.9 F) |
| 1984 | -31.1 C (-24.0 F) |
| 1985 | -31.7 C (-25.1 F) |
| 1986 | -29.4 C (-20.9 F) |
| 1987 | -28.9 C (-20.0 F) |
| 1988 | -26.1 C (-15.0 F) |
| 1989 | -27.2 C (-17.0 F) |
| 1990 | -25.0 C (-13.0 F) |
| 1991 | -26.7 C (-16.1 F) |
| 1992 | -25.6 C (-14.1 F) |
| 1993 | -25.6 C (-14.1 F) |
| 1994 | -34.4 C (-29.9 F) |
| 1995 | -25.0 C (-13.0 F) |
| 1996 | -31.7 C (-25.1 F) |
| 1997 | -30.0 C (-22.0 F) |
| 1998 | -25.6 C (-14.1 F) |
| 1999 | -26.1 C (-15.0 F) |
| 2000 | -25.0 C (-13.0 F) |
| 2001 | -23.3 C (-9.9 F) |
| 2002 | -22.2 C (-8.0 F) |
| 2003 | -28.3 C (-18.9 F) |
| 2004 | -26.7 C (-16.1 F) |
| 2005 | -26.7 C (-16.1 F) |
| 2006 | -20.6 C (-5.1 F) |
| 2007 | -27.2 C (-17.0 F) |
| 2008 | -26.1 C (-15.0 F) |
| 2009 | -29.4 C (-20.9 F) |
| 2010 | -21.7 C (-7.1 F) |
| 2011 | -28.3 C (-18.9 F) |
| 2012 | -23.9 C (-11.0 F) |
| 2013 | -26.1 C (-15.0 F) |
| 2014 | -33.3 C (-27.9 F) |
| 2015 | -33.3 C (-27.9 F) |
| 2016 | -30.0 C (-22.0 F) |
| 2017 | -26.7 C (-16.1 F) |
| 2018 | -25.6 C (-14.1 F) |
| 2019 | -30.0 C (-22.0 F) |
| 2020 | -22.2 C (-8.0 F) |
| 2021 | -22.8 C (-9.0 F) |
| 2022 | -27.8 C (-18.0 F) |
| 2023 | -25.0 C (-13.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1928 | 24.9 mm (1.0 in) |
| 1929 | 43.2 mm (1.7 in) |
| 1930 | 30.2 mm (1.2 in) |
| 1931 | 83.8 mm (3.3 in) |
| 1932 | 30.7 mm (1.2 in) |
| 1933 | 33.0 mm (1.3 in) |
| 1934 | 33.8 mm (1.3 in) |
| 1935 | 34.3 mm (1.4 in) |
| 1936 | 41.9 mm (1.6 in) |
| 1937 | 47.0 mm (1.9 in) |
| 1938 | 42.7 mm (1.7 in) |
| 1939 | 26.4 mm (1.0 in) |
| 1940 | 44.7 mm (1.8 in) |
| 1941 | 42.7 mm (1.7 in) |
| 1942 | 44.2 mm (1.7 in) |
| 1943 | 36.1 mm (1.4 in) |
| 1944 | 37.8 mm (1.5 in) |
| 1945 | 40.1 mm (1.6 in) |
| 1946 | 36.1 mm (1.4 in) |
| 1947 | 58.4 mm (2.3 in) |
| 1948 | 30.5 mm (1.2 in) |
| 1949 | 55.4 mm (2.2 in) |
| 1950 | 32.0 mm (1.3 in) |
| 1951 | 47.0 mm (1.9 in) |
| 1952 | 31.2 mm (1.2 in) |
| 1953 | 29.0 mm (1.1 in) |
| 1954 | 45.7 mm (1.8 in) |
| 1955 | 40.9 mm (1.6 in) |
| 1956 | 33.0 mm (1.3 in) |
| 1957 | 57.7 mm (2.3 in) |
| 1958 | 66.8 mm (2.6 in) |
| 1959 | 35.3 mm (1.4 in) |
| 1960 | 39.4 mm (1.6 in) |
| 1961 | 94.5 mm (3.7 in) |
| 1962 | 31.5 mm (1.2 in) |
| 1963 | 46.0 mm (1.8 in) |
| 1964 | 48.3 mm (1.9 in) |
| 1965 | 65.0 mm (2.6 in) |
| 1966 | 50.0 mm (2.0 in) |
| 1967 | 49.3 mm (1.9 in) |
| 1968 | 83.3 mm (3.3 in) |
| 1969 | 59.7 mm (2.4 in) |
| 1970 | 92.7 mm (3.6 in) |
| 1971 | 66.8 mm (2.6 in) |
| 1972 | 91.2 mm (3.6 in) |
| 1973 | 53.3 mm (2.1 in) |
| 1974 | 36.8 mm (1.4 in) |
| 1975 | 43.2 mm (1.7 in) |
| 1976 | 27.2 mm (1.1 in) |
| 1977 | 30.2 mm (1.2 in) |
| 1978 | 43.9 mm (1.7 in) |
| 1979 | 54.6 mm (2.1 in) |
| 1980 | 30.0 mm (1.2 in) |
| 1981 | 27.4 mm (1.1 in) |
| 1982 | 65.0 mm (2.6 in) |
| 1983 | 50.3 mm (2.0 in) |
| 1984 | 39.4 mm (1.6 in) |
| 1985 | 39.1 mm (1.5 in) |
| 1986 | 42.7 mm (1.7 in) |
| 1987 | 26.7 mm (1.1 in) |
| 1988 | 38.9 mm (1.5 in) |
| 1989 | 63.5 mm (2.5 in) |
| 1990 | 77.7 mm (3.1 in) |
| 1991 | 42.9 mm (1.7 in) |
| 1992 | 29.0 mm (1.1 in) |
| 1993 | 43.2 mm (1.7 in) |
| 1994 | 69.3 mm (2.7 in) |
| 1995 | 37.1 mm (1.5 in) |
| 1996 | 59.7 mm (2.4 in) |
| 1997 | 51.1 mm (2.0 in) |
| 1998 | 44.5 mm (1.8 in) |
| 1999 | 53.8 mm (2.1 in) |
| 2000 | 31.8 mm (1.3 in) |
| 2001 | 66.3 mm (2.6 in) |
| 2002 | 58.7 mm (2.3 in) |
| 2003 | 33.3 mm (1.3 in) |
| 2004 | 39.1 mm (1.5 in) |
| 2005 | 62.5 mm (2.5 in) |
| 2006 | 54.6 mm (2.1 in) |
| 2007 | 67.6 mm (2.7 in) |
| 2008 | 39.9 mm (1.6 in) |
| 2009 | 95.0 mm (3.7 in) |
| 2010 | 53.1 mm (2.1 in) |
| 2011 | 70.1 mm (2.8 in) |
| 2012 | 46.0 mm (1.8 in) |
| 2013 | 37.3 mm (1.5 in) |
| 2014 | 65.0 mm (2.6 in) |
| 2015 | 49.5 mm (1.9 in) |
| 2016 | 52.3 mm (2.1 in) |
| 2017 | 49.3 mm (1.9 in) |
| 2018 | 55.1 mm (2.2 in) |
| 2019 | 42.4 mm (1.7 in) |
| 2020 | 57.7 mm (2.3 in) |
| 2021 | 64.0 mm (2.5 in) |
| 2022 | 29.2 mm (1.1 in) |
| 2023 | 41.4 mm (1.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1928 | 63.2 mm (2.5 in) |
| 1929 | 85.0 mm (3.3 in) |
| 1930 | 45.7 mm (1.8 in) |
| 1931 | 88.1 mm (3.5 in) |
| 1932 | 48.3 mm (1.9 in) |
| 1933 | 58.1 mm (2.3 in) |
| 1934 | 44.7 mm (1.8 in) |
| 1935 | 51.8 mm (2.0 in) |
| 1936 | 69.6 mm (2.7 in) |
| 1937 | 80.8 mm (3.2 in) |
| 1938 | 64.0 mm (2.5 in) |
| 1939 | 46.2 mm (1.8 in) |
| 1940 | 60.2 mm (2.4 in) |
| 1941 | 57.7 mm (2.3 in) |
| 1942 | 48.3 mm (1.9 in) |
| 1943 | 53.8 mm (2.1 in) |
| 1944 | 54.1 mm (2.1 in) |
| 1945 | 51.8 mm (2.0 in) |
| 1946 | 56.9 mm (2.2 in) |
| 1947 | 91.4 mm (3.6 in) |
| 1948 | 46.8 mm (1.8 in) |
| 1949 | 62.5 mm (2.5 in) |
| 1950 | 68.6 mm (2.7 in) |
| 1951 | 62.5 mm (2.5 in) |
| 1952 | 66.0 mm (2.6 in) |
| 1953 | 55.9 mm (2.2 in) |
| 1954 | 69.8 mm (2.7 in) |
| 1955 | 92.0 mm (3.6 in) |
| 1956 | 50.0 mm (2.0 in) |
| 1957 | 102.9 mm (4.1 in) |
| 1958 | 90.8 mm (3.6 in) |
| 1959 | 79.8 mm (3.1 in) |
| 1960 | 83.1 mm (3.3 in) |
| 1961 | 155.0 mm (6.1 in) |
| 1962 | 62.5 mm (2.5 in) |
| 1963 | 82.6 mm (3.3 in) |
| 1964 | 62.2 mm (2.4 in) |
| 1965 | 97.0 mm (3.8 in) |
| 1966 | 109.7 mm (4.3 in) |
| 1967 | 52.4 mm (2.1 in) |
| 1968 | 162.3 mm (6.4 in) |
| 1969 | 77.1 mm (3.0 in) |
| 1970 | 114.8 mm (4.5 in) |
| 1971 | 97.3 mm (3.8 in) |
| 1972 | 91.2 mm (3.6 in) |
| 1973 | 97.0 mm (3.8 in) |
| 1974 | 73.8 mm (2.9 in) |
| 1975 | 68.3 mm (2.7 in) |
| 1976 | 65.0 mm (2.6 in) |
| 1977 | 64.0 mm (2.5 in) |
| 1978 | 64.7 mm (2.5 in) |
| 1979 | 67.3 mm (2.6 in) |
| 1980 | 52.9 mm (2.1 in) |
| 1981 | 48.2 mm (1.9 in) |
| 1982 | 75.2 mm (3.0 in) |
| 1983 | 66.8 mm (2.6 in) |
| 1984 | 93.2 mm (3.7 in) |
| 1985 | 62.3 mm (2.5 in) |
| 1986 | 56.4 mm (2.2 in) |
| 1987 | 50.6 mm (2.0 in) |
| 1988 | 60.5 mm (2.4 in) |
| 1989 | 68.6 mm (2.7 in) |
| 1990 | 101.4 mm (4.0 in) |
| 1991 | 75.2 mm (3.0 in) |
| 1992 | 53.5 mm (2.1 in) |
| 1993 | 72.9 mm (2.9 in) |
| 1994 | 84.5 mm (3.3 in) |
| 1995 | 72.7 mm (2.9 in) |
| 1996 | 123.8 mm (4.9 in) |
| 1997 | 60.5 mm (2.4 in) |
| 1998 | 79.7 mm (3.1 in) |
| 1999 | 70.3 mm (2.8 in) |
| 2000 | 61.5 mm (2.4 in) |
| 2001 | 85.1 mm (3.4 in) |
| 2002 | 65.4 mm (2.6 in) |
| 2003 | 66.4 mm (2.6 in) |
| 2004 | 72.1 mm (2.8 in) |
| 2005 | 83.3 mm (3.3 in) |
| 2006 | 58.9 mm (2.3 in) |
| 2007 | 88.2 mm (3.5 in) |
| 2008 | 62.2 mm (2.4 in) |
| 2009 | 115.3 mm (4.5 in) |
| 2010 | 67.6 mm (2.7 in) |
| 2011 | 110.5 mm (4.4 in) |
| 2012 | 77.4 mm (3.0 in) |
| 2013 | 56.6 mm (2.2 in) |
| 2014 | 92.2 mm (3.6 in) |
| 2015 | 76.7 mm (3.0 in) |
| 2016 | 83.1 mm (3.3 in) |
| 2017 | 102.6 mm (4.0 in) |
| 2018 | 98.7 mm (3.9 in) |
| 2019 | 66.0 mm (2.6 in) |
| 2020 | 125.3 mm (4.9 in) |
| 2021 | 81.8 mm (3.2 in) |
| 2022 | 57.7 mm (2.3 in) |
| 2023 | 78.7 mm (3.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1928 | 21 days |
| 1929 | 18 days |
| 1930 | 15 days |
| 1931 | 17 days |
| 1932 | 19 days |
| 1933 | 29 days |
| 1934 | 17 days |
| 1935 | 21 days |
| 1936 | 21 days |
| 1937 | 20 days |
| 1938 | 14 days |
| 1939 | 20 days |
| 1940 | 16 days |
| 1941 | 27 days |
| 1942 | 3 days |
| 1943 | 22 days |
| 1944 | 21 days |
| 1945 | 16 days |
| 1946 | 16 days |
| 1947 | 22 days |
| 1948 | 22 days |
| 1949 | 18 days |
| 1950 | 12 days |
| 1951 | 19 days |
| 1952 | 15 days |
| 1953 | 17 days |
| 1954 | 28 days |
| 1955 | 14 days |
| 1956 | 17 days |
| 1957 | 18 days |
| 1958 | 19 days |
| 1959 | 15 days |
| 1960 | 14 days |
| 1961 | 19 days |
| 1962 | 22 days |
| 1963 | 23 days |
| 1964 | 21 days |
| 1965 | 18 days |
| 1966 | 25 days |
| 1967 | 21 days |
| 1968 | 17 days |
| 1969 | 23 days |
| 1970 | 15 days |
| 1971 | 16 days |
| 1972 | 17 days |
| 1973 | 14 days |
| 1974 | 27 days |
| 1975 | 16 days |
| 1976 | 14 days |
| 1977 | 20 days |
| 1978 | 18 days |
| 1979 | 18 days |
| 1980 | 17 days |
| 1981 | 18 days |
| 1982 | 17 days |
| 1983 | 17 days |
| 1984 | 19 days |
| 1985 | 11 days |
| 1986 | 18 days |
| 1987 | 21 days |
| 1988 | 16 days |
| 1989 | 31 days |
| 1990 | 18 days |
| 1991 | 14 days |
| 1992 | 27 days |
| 1993 | 11 days |
| 1994 | 14 days |
| 1995 | 14 days |
| 1996 | 18 days |
| 1997 | 18 days |
| 1998 | 15 days |
| 1999 | 28 days |
| 2000 | 23 days |
| 2001 | 25 days |
| 2002 | 18 days |
| 2003 | 16 days |
| 2004 | 33 days |
| 2005 | 19 days |
| 2006 | 17 days |
| 2007 | 18 days |
| 2008 | 10 days |
| 2009 | 21 days |
| 2010 | 22 days |
| 2011 | 18 days |
| 2012 | 17 days |
| 2013 | 12 days |
| 2014 | 12 days |
| 2015 | 25 days |
| 2016 | 14 days |
| 2017 | 10 days |
| 2018 | 15 days |
| 2019 | 13 days |
| 2020 | 14 days |
| 2021 | 15 days |
| 2022 | 10 days |
| 2023 | 10 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
82 years with a frostAcross 82 years with a frost, the median last spring frost at Onaway 4N falls on 21 May and the median first autumn frost on 28 September, which leaves a median of 128 days between them.
In 1990 to 2021 the median growing season was 132 days. That is 11 days more than in 1929 to 1963.
Fitted over all years, the growing season changes by +2.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1929 to 1963) | Recent period (1990 to 2021) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 21 May | 24 May | 21 May | 3 days earlier | -0.7 days per decade |
| First autumn frost | 28 September | 24 September | 2 October | 8 days later | +1.6 days per decade |
| Growing days | 128 days | 121 days | 132 days | 11 days more | +2.2 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
88 years, 1929 to 2021A day with at least 45.7 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 105.6 mm (4.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 45.7 mm (1.8 in) | |
| 5 years | 60.4 mm (2.4 in) | |
| 10 years | 70.6 mm (2.8 in) | |
| 25 years | 84.2 mm (3.3 in) | |
| 50 years | 94.8 mm (3.7 in) | |
| 100 years | 105.6 mm (4.2 in) | Longer than the 88 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, 88 years of values from 1929 to 2021.
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: 95.0 mm (3.7 in) in 2009; 94.5 mm (3.7 in) in 1961; 92.7 mm (3.6 in) in 1970.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Onaway 4N, at 2009. Each is measured against neighbouring stations.
- 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 |
|---|---|---|---|---|
| 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
2007 to 2021 against 1961 to 1990Over 2007 to 2021, Onaway 4N had a mean temperature of 7.1 C (44.8 F) and 848.6 mm (33.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Foldens (Canada, 382 km away), Richmond Hill (Canada, 414 km away) and Kitchener (Canada, 368 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Foldens | Canada | 382 km (237 mi) | 7.3 C (45.1 F) | 934.9 mm (36.8 in) | 0.47 |
| Richmond Hill | Canada | 414 km (257 mi) | 7.0 C (44.6 F) | 824.6 mm (32.5 in) | 0.48 |
| Kitchener | Canada | 368 km (229 mi) | 7.2 C (44.9 F) | 888.8 mm (35.0 in) | 0.48 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).