Plymouth Pwr Substn Weather Records (USC00127028)
Record envelope, standing records and threshold days for Plymouth Pwr Substn (USC00127028), Indiana, United States, with 96 years of record.
Key Facts for Plymouth Pwr Substn
- Plymouth Pwr Substn (USC00127028) is a weather station in Indiana, United States at 41.33 latitude and -86.32 longitude, 239 m (785 ft) above sea level.
- The station reports from 1894 to 1989, 96 years of record.
- 1,464 records set at Plymouth Pwr Substn still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Plymouth Pwr Substn set a daily record snow depth of 7.6 cm (3.0 in) on 21 October 1989.
About the Station
- Location: Indiana, United States, 41.33 latitude, -86.32 longitude.
- Elevation: 239 m (785 ft).
- Period of record: 1894 to 1989, 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 | 20.6 C (69.1 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Feb | 20.6 C (69.1 F) | -28.9 C (-20.0 F) | n/a | n/a |
| Mar | 29.4 C (84.9 F) | -22.2 C (-8.0 F) | n/a | n/a |
| Apr | 32.2 C (90.0 F) | -12.8 C (9.0 F) | n/a | n/a |
| May | 35.6 C (96.1 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jun | 40.6 C (105.1 F) | 0.6 C (33.1 F) | n/a | n/a |
| Jul | 42.8 C (109.0 F) | 4.4 C (39.9 F) | n/a | n/a |
| Aug | 39.4 C (102.9 F) | 2.2 C (36.0 F) | n/a | n/a |
| Sep | 38.9 C (102.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Oct | 33.9 C (93.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Nov | 27.8 C (82.0 F) | -22.8 C (-9.0 F) | n/a | n/a |
| Dec | 21.7 C (71.1 F) | -30.6 C (-23.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1894 | 13 |
| 1895 | 9 |
| 1906 | 14 |
| 1907 | 26 |
| 1908 | 11 |
| 1909 | 24 |
| 1910 | 15 |
| 1911 | 22 |
| 1912 | 24 |
| 1913 | 19 |
| 1914 | 21 |
| 1915 | 22 |
| 1916 | 20 |
| 1917 | 14 |
| 1918 | 31 |
| 1919 | 13 |
| 1920 | 11 |
| 1921 | 17 |
| 1922 | 11 |
| 1923 | 17 |
| 1924 | 20 |
| 1925 | 29 |
| 1926 | 15 |
| 1927 | 12 |
| 1928 | 21 |
| 1929 | 17 |
| 1930 | 35 |
| 1931 | 20 |
| 1932 | 15 |
| 1933 | 26 |
| 1934 | 33 |
| 1935 | 8 |
| 1936 | 40 |
| 1937 | 18 |
| 1938 | 14 |
| 1939 | 17 |
| 1940 | 21 |
| 1941 | 18 |
| 1942 | 15 |
| 1943 | 14 |
| 1944 | 12 |
| 1945 | 14 |
| 1946 | 19 |
| 1947 | 18 |
| 1948 | 8 |
| 1949 | 16 |
| 1950 | 22 |
| 1951 | 23 |
| 1952 | 17 |
| 1953 | 20 |
| 1954 | 12 |
| 1955 | 17 |
| 1956 | 13 |
| 1957 | 12 |
| 1958 | 12 |
| 1959 | 11 |
| 1960 | 14 |
| 1961 | 13 |
| 1962 | 19 |
| 1963 | 33 |
| 1964 | 17 |
| 1965 | 24 |
| 1966 | 12 |
| 1967 | 14 |
| 1968 | 15 |
| 1969 | 10 |
| 1970 | 7 |
| 1971 | 12 |
| 1972 | 15 |
| 1973 | 13 |
| 1974 | 14 |
| 1975 | 16 |
| 1976 | 17 |
| 1977 | 19 |
| 1978 | 9 |
| 1979 | 15 |
| 1980 | 11 |
| 1981 | 12 |
| 1982 | 24 |
| 1983 | 20 |
| 1984 | 21 |
| 1985 | 18 |
| 1986 | 11 |
| 1987 | 10 |
| 1988 | 9 |
| 1989 | 12 |
All-Time Record Progression
15 new records| Date | Kind | Detail |
|---|---|---|
| 1936-07-08 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 1936-07-14 | Record high maximum temperature | Record high maximum temperature 42.8 C (109.0 F) |
| 1937-07-11 | Record high minimum temperature | Record high minimum temperature 27.8 C (82.0 F) |
| 1938-09-14 | Record daily precipitation | Record daily precipitation 112.0 mm (4.4 in) |
| 1954-12-19 | Record daily snowfall | Record daily snowfall 40.6 cm (16.0 in) |
| 1954-12-19 | Record snow depth | Record snow depth 40.6 cm (16.0 in) |
| 1960-03-04 | Record snow depth | Record snow depth 45.7 cm (18.0 in) |
| 1960-03-07 | Record snow depth | Record snow depth 48.3 cm (19.0 in) |
| 1963-01-28 | Record low minimum temperature | Record low minimum temperature -31.1 C (-24.0 F) |
| 1977-01-13 | Record snow depth | Record snow depth 50.8 cm (20.0 in) |
| 1978-01-27 | Record snow depth | Record snow depth 71.1 cm (28.0 in) |
| 1982-01-10 | Record low maximum temperature | Record low maximum temperature -20.6 C (-5.1 F) |
| 1983-07-02 | Record daily precipitation | Record daily precipitation 114.3 mm (4.5 in) |
| 1983-12-23 | Record low maximum temperature | Record low maximum temperature -21.1 C (-6.0 F) |
| 1985-01-20 | Record low minimum temperature | Record low minimum temperature -31.7 C (-25.1 F) |
Wettest Day of Each Month
Jul: 114.3 mm (4.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 44.5 mm (1.8 in) | 30 January 1947 |
| Feb | 63.5 mm (2.5 in) | 12 February 1985 |
| Mar | 64.8 mm (2.6 in) | 28 March 1985 |
| Apr | 87.1 mm (3.4 in) | 29 April 1956 |
| May | 83.3 mm (3.3 in) | 31 May 1959 |
| Jun | 109.2 mm (4.3 in) | 13 June 1981 |
| Jul | 114.3 mm (4.5 in) | 2 July 1983 |
| Aug | 108.0 mm (4.3 in) | 3 August 1929 |
| Sep | 112.0 mm (4.4 in) | 14 September 1938 |
| Oct | 111.0 mm (4.4 in) | 3 October 1954 |
| Nov | 54.9 mm (2.2 in) | 9 November 1966 |
| Dec | 65.8 mm (2.6 in) | 7 December 1927 |
Period of Record Coverage
1894 to 1989| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1894 | 273 | 75% | No |
| 1895 | 107 | 29% | No |
| 1905 | 30 | 8% | No |
| 1906 | 356 | 98% | Yes |
| 1907 | 362 | 99% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 364 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 364 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 364 | 100% | Yes |
| 1919 | 360 | 99% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 363 | 99% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 364 | 100% | Yes |
| 1927 | 365 | 100% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 364 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 362 | 99% | Yes |
| 1934 | 362 | 99% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 342 | 93% | Yes |
| 1937 | 351 | 96% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 353 | 97% | Yes |
| 1943 | 362 | 99% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 363 | 99% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 362 | 99% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 363 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 335 | 92% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 332 | 91% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 355 | 97% | Yes |
| 1983 | 357 | 98% | Yes |
| 1984 | 359 | 98% | Yes |
| 1985 | 355 | 97% | Yes |
| 1986 | 357 | 98% | Yes |
| 1987 | 358 | 98% | Yes |
| 1988 | 356 | 97% | Yes |
| 1989 | 243 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 21 October 1989 | Plymouth Pwr Substn, US | daily snow depth | 7.6 cm (3.0 in) | 7.6 cm (3.0 in) | 83 years | 20 of 100 (Routine) |
| 20 October 1989 | Plymouth Pwr Substn, US | monthly snow depth | 22.9 cm (9.0 in) | 15.3 cm (6.0 in) | 78 years | 56 of 100 (Notable) |
| 20 October 1989 | Plymouth Pwr Substn, US | monthly snowfall | 21.6 cm (8.5 in) | 2.5 cm (1.0 in) | 78 years | 47 of 100 (Notable) |
| 20 October 1989 | Plymouth Pwr Substn, US | daily low max | 2.2 C (36.0 F) | 4.5 C (8.1 F) | 59 years | 33 of 100 (Routine) |
| 19 October 1989 | Plymouth Pwr Substn, US | daily snow depth | 2.5 cm (1.0 in) | 2.5 cm (1.0 in) | 83 years | 20 of 100 (Routine) |
| 19 October 1989 | Plymouth Pwr Substn, US | daily low max | 3.3 C (37.9 F) | 2.8 C (5.0 F) | 59 years | 30 of 100 (Routine) |
| 18 October 1989 | Plymouth Pwr Substn, US | daily low max | 6.7 C (44.1 F) | 0.5 C (0.9 F) | 16 years | 14 of 100 (Routine) |
| 14 October 1989 | Plymouth Pwr Substn, US | daily high max | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 68 years | 29 of 100 (Routine) |
| 4 October 1989 | Plymouth Pwr Substn, US | daily low min | -1.7 C (28.9 F) | 0.6 C (1.1 F) | 60 years | 28 of 100 (Routine) |
| 14 September 1989 | Plymouth Pwr Substn, US | daily low max | 12.8 C (55.0 F) | 3.3 C (5.9 F) | 40 years | 27 of 100 (Routine) |
| 24 August 1989 | Plymouth Pwr Substn, US | daily rain | 32.5 mm (1.3 in) | 1.3 mm (0.05 in) | 78 years | 33 of 100 (Routine) |
| 8 August 1989 | Plymouth Pwr Substn, US | daily low min | 8.3 C (46.9 F) | 0.6 C (1.1 F) | 63 years | 28 of 100 (Routine) |
| 7 August 1989 | Plymouth Pwr Substn, US | daily low max | 20.0 C (68.0 F) | 2.2 C (4.0 F) | 76 years | 38 of 100 (Notable) |
| 7 August 1989 | Plymouth Pwr Substn, US | daily low min | 7.8 C (46.0 F) | 0.5 C (0.9 F) | 18 years | 15 of 100 (Routine) |
| 20 July 1989 | Plymouth Pwr Substn, US | daily low max (Tie) | 21.1 C (70.0 F) | tie | 31 years | 4 of 100 (Routine) |
| 16 June 1989 | Plymouth Pwr Substn, US | daily low max | 17.8 C (64.0 F) | 1.6 C (2.9 F) | 72 years | 33 of 100 (Routine) |
| 4 June 1989 | Plymouth Pwr Substn, US | daily rain | 29.7 mm (1.2 in) | 3.8 mm (0.15 in) | 82 years | 35 of 100 (Notable) |
| 28 March 1989 | Plymouth Pwr Substn, US | daily high min (Tie) | 15.0 C (59.0 F) | tie | 44 years | 5 of 100 (Routine) |
| 1 February 1989 | Plymouth Pwr Substn, US | daily high max | 15.6 C (60.1 F) | 2.3 C (4.1 F) | 21 years | 18 of 100 (Routine) |
| 31 January 1989 | Plymouth Pwr Substn, US | daily high max | 17.8 C (64.0 F) | 6.1 C (11.0 F) | 1 year | 18 of 100 (Routine) |
Climate Trend
79 complete years, 1906 to 1988| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1906 | 10.1 C | +0.01 C |
| 1907 | 8.8 C | -1.25 C |
| 1908 | 10.2 C | +0.11 C |
| 1909 | 9.3 C | -0.80 C |
| 1910 | 9.4 C | -0.66 C |
| 1911 | 10.0 C | -0.09 C |
| 1912 | 8.5 C | -1.61 C |
| 1913 | 10.2 C | +0.09 C |
| 1914 | 9.7 C | -0.32 C |
| 1915 | 9.5 C | -0.52 C |
| 1916 | 9.9 C | -0.21 C |
| 1917 | 7.8 C | -2.22 C |
| 1918 | 10.0 C | -0.11 C |
| 1919 | 10.4 C | +0.36 C |
| 1920 | 9.8 C | -0.24 C |
| 1921 | 12.1 C | +2.05 C |
| 1922 | 10.2 C | +0.11 C |
| 1923 | 9.8 C | -0.29 C |
| 1924 | 8.0 C | -2.07 C |
| 1925 | 9.7 C | -0.41 C |
| 1926 | 8.4 C | -1.68 C |
| 1927 | 9.6 C | -0.42 C |
| 1928 | 9.2 C | -0.85 C |
| 1929 | 8.5 C | -1.59 C |
| 1930 | 9.5 C | -0.61 C |
| 1931 | 11.6 C | +1.55 C |
| 1932 | 10.1 C | +0.03 C |
| 1933 | 11.2 C | +1.10 C |
| 1934 | 10.8 C | +0.78 C |
| 1935 | 10.1 C | +0.01 C |
| 1936 | 10.4 C | +0.29 C |
| 1937 | 9.4 C | -0.63 C |
| 1938 | 11.0 C | +0.95 C |
| 1939 | 10.6 C | +0.55 C |
| 1940 | 9.3 C | -0.77 C |
| 1941 | 11.1 C | +0.99 C |
| 1942 | 10.4 C | +0.30 C |
| 1943 | 9.9 C | -0.17 C |
| 1944 | 11.2 C | +1.09 C |
| 1945 | 10.1 C | +0.08 C |
| 1946 | 11.5 C | +1.46 C |
| 1947 | 10.0 C | -0.09 C |
| 1948 | 10.0 C | -0.05 C |
| 1949 | 10.7 C | +0.64 C |
| 1951 | 9.5 C | -0.56 C |
| 1953 | 11.4 C | +1.38 C |
| 1954 | 11.1 C | +1.02 C |
| 1955 | 10.9 C | +0.81 C |
| 1956 | 10.9 C | +0.79 C |
| 1957 | 10.2 C | +0.16 C |
| 1958 | 9.4 C | -0.67 C |
| 1959 | 10.5 C | +0.44 C |
| 1960 | 9.8 C | -0.24 C |
| 1961 | 10.0 C | -0.11 C |
| 1962 | 9.6 C | -0.48 C |
| 1963 | 9.1 C | -0.98 C |
| 1964 | 10.5 C | +0.40 C |
| 1966 | 9.8 C | -0.28 C |
| 1967 | 9.4 C | -0.68 C |
| 1968 | 10.3 C | +0.20 C |
| 1970 | 10.2 C | +0.16 C |
| 1971 | 10.5 C | +0.44 C |
| 1972 | 9.6 C | -0.43 C |
| 1973 | 11.5 C | +1.39 C |
| 1974 | 10.4 C | +0.33 C |
| 1975 | 10.8 C | +0.76 C |
| 1976 | 9.9 C | -0.21 C |
| 1977 | 10.2 C | +0.13 C |
| 1978 | 9.2 C | -0.87 C |
| 1979 | 9.2 C | -0.88 C |
| 1980 | 9.9 C | -0.12 C |
| 1981 | 10.4 C | +0.33 C |
| 1982 | 9.9 C | -0.19 C |
| 1983 | 10.9 C | +0.80 C |
| 1984 | 10.5 C | +0.44 C |
| 1985 | 10.4 C | +0.34 C |
| 1986 | 10.9 C | +0.79 C |
| 1987 | 11.0 C | +0.91 C |
| 1988 | 9.9 C | -0.16 C |
The annual mean temperature here has risen by 0.09 C (0.02 to 0.16) per decade over 1906 to 1988. In Fahrenheit: 0.16 F (0.03 to 0.29) per decade. The slope is a straight line fitted to 79 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.09 C (0.02 to 0.16) per decade | 0.16 F (0.03 to 0.29) per decade | 1906 to 1988 | 79 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1906 to 1988 | 79 | Rise |
| Mean daily minimum | 0.02 C (-0.05 to 0.10) per decade | 0.04 F (-0.10 to 0.18) per decade | 1906 to 1988 | 79 | 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
1894 to 1989| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1936 | 36.1 C (97.0 F) | 87 |
| Coldest night (TNn) | -31.7 C (-25.1 F) | 1985 | -24.4 C (-11.9 F) | 87 |
| Wettest day (Rx1day) | 114.3 mm (4.5 in) | 1983 | 54.9 mm (2.2 in) | 87 |
| Wettest five days (Rx5day) | 204.5 mm (8.1 in) | 1954 | 88.1 mm (3.5 in) | 87 |
| Longest dry spell (CDD) | 33 days | 1939 | 19 days | 87 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1894 | 37.2 C (99.0 F) |
| 1895 | 26.7 C (80.1 F) |
| 1905 | 8.9 C (48.0 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 32.8 C (91.0 F) |
| 1908 | 35.6 C (96.1 F) |
| 1909 | 32.8 C (91.0 F) |
| 1910 | 35.0 C (95.0 F) |
| 1911 | 34.4 C (93.9 F) |
| 1912 | 31.7 C (89.1 F) |
| 1913 | 34.4 C (93.9 F) |
| 1914 | 35.6 C (96.1 F) |
| 1915 | 31.7 C (89.1 F) |
| 1916 | 37.2 C (99.0 F) |
| 1917 | 35.0 C (95.0 F) |
| 1918 | 38.3 C (100.9 F) |
| 1919 | 35.0 C (95.0 F) |
| 1920 | 36.7 C (98.1 F) |
| 1921 | 38.9 C (102.0 F) |
| 1922 | 37.2 C (99.0 F) |
| 1923 | 37.2 C (99.0 F) |
| 1924 | 34.4 C (93.9 F) |
| 1925 | 36.7 C (98.1 F) |
| 1926 | 35.0 C (95.0 F) |
| 1927 | 36.1 C (97.0 F) |
| 1928 | 35.6 C (96.1 F) |
| 1929 | 36.7 C (98.1 F) |
| 1930 | 39.4 C (102.9 F) |
| 1931 | 37.8 C (100.0 F) |
| 1932 | 37.8 C (100.0 F) |
| 1933 | 40.0 C (104.0 F) |
| 1934 | 41.7 C (107.1 F) |
| 1935 | 37.2 C (99.0 F) |
| 1936 | 42.8 C (109.0 F) |
| 1937 | 35.6 C (96.1 F) |
| 1938 | 33.3 C (91.9 F) |
| 1939 | 38.9 C (102.0 F) |
| 1940 | 37.8 C (100.0 F) |
| 1941 | 38.3 C (100.9 F) |
| 1942 | 35.6 C (96.1 F) |
| 1943 | 36.1 C (97.0 F) |
| 1944 | 38.3 C (100.9 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 36.1 C (97.0 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 33.9 C (93.0 F) |
| 1951 | 35.0 C (95.0 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 38.9 C (102.0 F) |
| 1954 | 37.2 C (99.0 F) |
| 1955 | 38.9 C (102.0 F) |
| 1956 | 37.2 C (99.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 33.3 C (91.9 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 36.1 C (97.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 35.6 C (96.1 F) |
| 1963 | 36.1 C (97.0 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 34.4 C (93.9 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 35.0 C (95.0 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 37.8 C (100.0 F) |
| 1972 | 36.1 C (97.0 F) |
| 1973 | 37.2 C (99.0 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 33.9 C (93.0 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 35.6 C (96.1 F) |
| 1982 | 34.4 C (93.9 F) |
| 1983 | 37.2 C (99.0 F) |
| 1984 | 40.0 C (104.0 F) |
| 1985 | 35.6 C (96.1 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 33.3 C (91.9 F) |
| 1988 | 37.8 C (100.0 F) |
| 1989 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1894 | -17.8 C (0.0 F) |
| 1895 | -27.8 C (-18.0 F) |
| 1905 | -16.1 C (3.0 F) |
| 1906 | -22.8 C (-9.0 F) |
| 1907 | -19.4 C (-2.9 F) |
| 1908 | -22.2 C (-8.0 F) |
| 1909 | -25.0 C (-13.0 F) |
| 1910 | -22.8 C (-9.0 F) |
| 1911 | -18.3 C (-0.9 F) |
| 1912 | -27.8 C (-18.0 F) |
| 1913 | -21.1 C (-6.0 F) |
| 1914 | -23.3 C (-9.9 F) |
| 1915 | -26.1 C (-15.0 F) |
| 1916 | -22.8 C (-9.0 F) |
| 1917 | -26.7 C (-16.1 F) |
| 1918 | -28.9 C (-20.0 F) |
| 1919 | -22.8 C (-9.0 F) |
| 1920 | -25.0 C (-13.0 F) |
| 1921 | -14.4 C (6.1 F) |
| 1922 | -25.6 C (-14.1 F) |
| 1923 | -22.2 C (-8.0 F) |
| 1924 | -30.6 C (-23.1 F) |
| 1925 | -22.8 C (-9.0 F) |
| 1926 | -23.3 C (-9.9 F) |
| 1927 | -26.1 C (-15.0 F) |
| 1928 | -25.0 C (-13.0 F) |
| 1929 | -23.9 C (-11.0 F) |
| 1930 | -30.0 C (-22.0 F) |
| 1931 | -20.0 C (-4.0 F) |
| 1932 | -23.3 C (-9.9 F) |
| 1933 | -28.9 C (-20.0 F) |
| 1934 | -22.8 C (-9.0 F) |
| 1935 | -24.4 C (-11.9 F) |
| 1936 | -28.3 C (-18.9 F) |
| 1937 | -18.3 C (-0.9 F) |
| 1938 | -17.8 C (0.0 F) |
| 1939 | -16.7 C (1.9 F) |
| 1940 | -26.1 C (-15.0 F) |
| 1941 | -19.4 C (-2.9 F) |
| 1942 | -24.4 C (-11.9 F) |
| 1943 | -25.0 C (-13.0 F) |
| 1944 | -23.3 C (-9.9 F) |
| 1945 | -22.8 C (-9.0 F) |
| 1946 | -19.4 C (-2.9 F) |
| 1947 | -18.9 C (-2.0 F) |
| 1948 | -22.8 C (-9.0 F) |
| 1949 | -21.7 C (-7.1 F) |
| 1950 | -25.0 C (-13.0 F) |
| 1951 | -27.8 C (-18.0 F) |
| 1952 | -17.8 C (0.0 F) |
| 1953 | -21.1 C (-6.0 F) |
| 1954 | -18.9 C (-2.0 F) |
| 1955 | -24.4 C (-11.9 F) |
| 1956 | -19.4 C (-2.9 F) |
| 1957 | -23.9 C (-11.0 F) |
| 1958 | -25.6 C (-14.1 F) |
| 1959 | -25.6 C (-14.1 F) |
| 1960 | -26.1 C (-15.0 F) |
| 1961 | -27.2 C (-17.0 F) |
| 1962 | -25.0 C (-13.0 F) |
| 1963 | -31.1 C (-24.0 F) |
| 1964 | -18.3 C (-0.9 F) |
| 1965 | -23.9 C (-11.0 F) |
| 1966 | -26.1 C (-15.0 F) |
| 1967 | -25.6 C (-14.1 F) |
| 1968 | -26.1 C (-15.0 F) |
| 1969 | -21.1 C (-6.0 F) |
| 1970 | -30.0 C (-22.0 F) |
| 1971 | -25.6 C (-14.1 F) |
| 1972 | -28.9 C (-20.0 F) |
| 1973 | -21.7 C (-7.1 F) |
| 1974 | -21.7 C (-7.1 F) |
| 1975 | -25.0 C (-13.0 F) |
| 1976 | -26.7 C (-16.1 F) |
| 1977 | -28.3 C (-18.9 F) |
| 1978 | -27.8 C (-18.0 F) |
| 1979 | -27.8 C (-18.0 F) |
| 1980 | -23.3 C (-9.9 F) |
| 1981 | -24.4 C (-11.9 F) |
| 1982 | -28.9 C (-20.0 F) |
| 1983 | -28.9 C (-20.0 F) |
| 1984 | -31.1 C (-24.0 F) |
| 1985 | -31.7 C (-25.1 F) |
| 1986 | -21.7 C (-7.1 F) |
| 1987 | -27.8 C (-18.0 F) |
| 1988 | -23.9 C (-11.0 F) |
| 1989 | -19.4 C (-2.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1894 | 59.2 mm (2.3 in) |
| 1895 | 18.8 mm (0.7 in) |
| 1905 | 17.8 mm (0.7 in) |
| 1906 | 59.9 mm (2.4 in) |
| 1907 | 49.3 mm (1.9 in) |
| 1908 | 45.7 mm (1.8 in) |
| 1909 | 50.3 mm (2.0 in) |
| 1910 | 39.4 mm (1.6 in) |
| 1911 | 49.5 mm (1.9 in) |
| 1912 | 81.0 mm (3.2 in) |
| 1913 | 50.8 mm (2.0 in) |
| 1914 | 41.9 mm (1.6 in) |
| 1915 | 38.6 mm (1.5 in) |
| 1916 | 96.0 mm (3.8 in) |
| 1917 | 43.4 mm (1.7 in) |
| 1918 | 56.1 mm (2.2 in) |
| 1919 | 75.4 mm (3.0 in) |
| 1920 | 51.8 mm (2.0 in) |
| 1921 | 50.8 mm (2.0 in) |
| 1922 | 50.8 mm (2.0 in) |
| 1923 | 49.3 mm (1.9 in) |
| 1924 | 55.9 mm (2.2 in) |
| 1925 | 71.1 mm (2.8 in) |
| 1926 | 58.4 mm (2.3 in) |
| 1927 | 65.8 mm (2.6 in) |
| 1928 | 55.9 mm (2.2 in) |
| 1929 | 108.0 mm (4.3 in) |
| 1930 | 64.8 mm (2.6 in) |
| 1931 | 39.6 mm (1.6 in) |
| 1932 | 71.1 mm (2.8 in) |
| 1933 | 62.2 mm (2.4 in) |
| 1934 | 76.2 mm (3.0 in) |
| 1935 | 34.0 mm (1.3 in) |
| 1936 | 41.1 mm (1.6 in) |
| 1937 | 48.8 mm (1.9 in) |
| 1938 | 112.0 mm (4.4 in) |
| 1939 | 71.4 mm (2.8 in) |
| 1940 | 54.1 mm (2.1 in) |
| 1941 | 46.2 mm (1.8 in) |
| 1942 | 99.3 mm (3.9 in) |
| 1943 | 58.7 mm (2.3 in) |
| 1944 | 53.3 mm (2.1 in) |
| 1945 | 88.4 mm (3.5 in) |
| 1946 | 47.0 mm (1.9 in) |
| 1947 | 47.5 mm (1.9 in) |
| 1948 | 41.9 mm (1.6 in) |
| 1949 | 51.3 mm (2.0 in) |
| 1950 | 62.2 mm (2.4 in) |
| 1951 | 102.4 mm (4.0 in) |
| 1952 | 50.8 mm (2.0 in) |
| 1953 | 58.4 mm (2.3 in) |
| 1954 | 111.0 mm (4.4 in) |
| 1955 | 57.4 mm (2.3 in) |
| 1956 | 87.1 mm (3.4 in) |
| 1957 | 70.6 mm (2.8 in) |
| 1958 | 47.5 mm (1.9 in) |
| 1959 | 91.2 mm (3.6 in) |
| 1960 | 70.6 mm (2.8 in) |
| 1961 | 54.6 mm (2.1 in) |
| 1962 | 44.5 mm (1.8 in) |
| 1963 | 48.5 mm (1.9 in) |
| 1964 | 57.4 mm (2.3 in) |
| 1965 | 68.6 mm (2.7 in) |
| 1966 | 54.9 mm (2.2 in) |
| 1967 | 53.3 mm (2.1 in) |
| 1968 | 64.5 mm (2.5 in) |
| 1969 | 40.6 mm (1.6 in) |
| 1970 | 57.4 mm (2.3 in) |
| 1971 | 47.2 mm (1.9 in) |
| 1972 | 60.2 mm (2.4 in) |
| 1973 | 74.4 mm (2.9 in) |
| 1974 | 50.8 mm (2.0 in) |
| 1975 | 61.0 mm (2.4 in) |
| 1976 | 43.7 mm (1.7 in) |
| 1977 | 75.7 mm (3.0 in) |
| 1978 | 43.9 mm (1.7 in) |
| 1979 | 43.7 mm (1.7 in) |
| 1980 | 44.5 mm (1.8 in) |
| 1981 | 109.2 mm (4.3 in) |
| 1982 | 64.8 mm (2.6 in) |
| 1983 | 114.3 mm (4.5 in) |
| 1984 | 37.3 mm (1.5 in) |
| 1985 | 64.8 mm (2.6 in) |
| 1986 | 74.9 mm (2.9 in) |
| 1987 | 35.6 mm (1.4 in) |
| 1988 | 40.9 mm (1.6 in) |
| 1989 | 33.3 mm (1.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1894 | 106.7 mm (4.2 in) |
| 1895 | 33.0 mm (1.3 in) |
| 1905 | 25.4 mm (1.0 in) |
| 1906 | 79.6 mm (3.1 in) |
| 1907 | 60.7 mm (2.4 in) |
| 1908 | 72.1 mm (2.8 in) |
| 1909 | 65.8 mm (2.6 in) |
| 1910 | 51.0 mm (2.0 in) |
| 1911 | 67.6 mm (2.7 in) |
| 1912 | 98.7 mm (3.9 in) |
| 1913 | 112.5 mm (4.4 in) |
| 1914 | 85.9 mm (3.4 in) |
| 1915 | 66.3 mm (2.6 in) |
| 1916 | 129.8 mm (5.1 in) |
| 1917 | 75.4 mm (3.0 in) |
| 1918 | 67.8 mm (2.7 in) |
| 1919 | 115.6 mm (4.6 in) |
| 1920 | 80.9 mm (3.2 in) |
| 1921 | 73.1 mm (2.9 in) |
| 1922 | 61.5 mm (2.4 in) |
| 1923 | 81.0 mm (3.2 in) |
| 1924 | 66.2 mm (2.6 in) |
| 1925 | 119.1 mm (4.7 in) |
| 1926 | 81.0 mm (3.2 in) |
| 1927 | 87.6 mm (3.4 in) |
| 1928 | 85.4 mm (3.4 in) |
| 1929 | 127.1 mm (5.0 in) |
| 1930 | 65.8 mm (2.6 in) |
| 1931 | 76.2 mm (3.0 in) |
| 1932 | 127.2 mm (5.0 in) |
| 1933 | 95.5 mm (3.8 in) |
| 1934 | 98.3 mm (3.9 in) |
| 1935 | 72.9 mm (2.9 in) |
| 1936 | 67.6 mm (2.7 in) |
| 1937 | 63.5 mm (2.5 in) |
| 1938 | 121.2 mm (4.8 in) |
| 1939 | 87.7 mm (3.5 in) |
| 1940 | 99.8 mm (3.9 in) |
| 1941 | 134.6 mm (5.3 in) |
| 1942 | 116.9 mm (4.6 in) |
| 1943 | 109.3 mm (4.3 in) |
| 1944 | 84.1 mm (3.3 in) |
| 1945 | 131.1 mm (5.2 in) |
| 1946 | 90.9 mm (3.6 in) |
| 1947 | 64.0 mm (2.5 in) |
| 1948 | 69.6 mm (2.7 in) |
| 1949 | 88.1 mm (3.5 in) |
| 1950 | 88.4 mm (3.5 in) |
| 1951 | 140.9 mm (5.5 in) |
| 1952 | 84.6 mm (3.3 in) |
| 1953 | 108.0 mm (4.3 in) |
| 1954 | 204.5 mm (8.1 in) |
| 1955 | 74.4 mm (2.9 in) |
| 1956 | 113.6 mm (4.5 in) |
| 1957 | 95.2 mm (3.7 in) |
| 1958 | 90.9 mm (3.6 in) |
| 1959 | 93.2 mm (3.7 in) |
| 1960 | 87.8 mm (3.5 in) |
| 1961 | 83.5 mm (3.3 in) |
| 1962 | 50.1 mm (2.0 in) |
| 1963 | 139.6 mm (5.5 in) |
| 1964 | 98.5 mm (3.9 in) |
| 1965 | 96.3 mm (3.8 in) |
| 1966 | 96.0 mm (3.8 in) |
| 1967 | 89.9 mm (3.5 in) |
| 1968 | 116.3 mm (4.6 in) |
| 1969 | 68.3 mm (2.7 in) |
| 1970 | 121.1 mm (4.8 in) |
| 1971 | 51.3 mm (2.0 in) |
| 1972 | 136.7 mm (5.4 in) |
| 1973 | 104.1 mm (4.1 in) |
| 1974 | 77.0 mm (3.0 in) |
| 1975 | 124.8 mm (4.9 in) |
| 1976 | 69.6 mm (2.7 in) |
| 1977 | 94.8 mm (3.7 in) |
| 1978 | 73.6 mm (2.9 in) |
| 1979 | 66.3 mm (2.6 in) |
| 1980 | 107.7 mm (4.2 in) |
| 1981 | 149.0 mm (5.9 in) |
| 1982 | 95.3 mm (3.8 in) |
| 1983 | 146.0 mm (5.7 in) |
| 1984 | 90.9 mm (3.6 in) |
| 1985 | 102.4 mm (4.0 in) |
| 1986 | 126.2 mm (5.0 in) |
| 1987 | 69.3 mm (2.7 in) |
| 1988 | 79.3 mm (3.1 in) |
| 1989 | 86.6 mm (3.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1894 | 22 days |
| 1895 | 14 days |
| 1905 | 18 days |
| 1906 | 15 days |
| 1907 | 28 days |
| 1908 | 26 days |
| 1909 | 16 days |
| 1910 | 28 days |
| 1911 | 14 days |
| 1912 | 16 days |
| 1913 | 16 days |
| 1914 | 15 days |
| 1915 | 23 days |
| 1916 | 20 days |
| 1917 | 20 days |
| 1918 | 21 days |
| 1919 | 18 days |
| 1920 | 30 days |
| 1921 | 15 days |
| 1922 | 20 days |
| 1923 | 21 days |
| 1924 | 23 days |
| 1925 | 23 days |
| 1926 | 15 days |
| 1927 | 30 days |
| 1928 | 19 days |
| 1929 | 18 days |
| 1930 | 23 days |
| 1931 | 18 days |
| 1932 | 19 days |
| 1933 | 16 days |
| 1934 | 19 days |
| 1935 | 18 days |
| 1936 | 23 days |
| 1937 | 13 days |
| 1938 | 20 days |
| 1939 | 33 days |
| 1940 | 19 days |
| 1941 | 17 days |
| 1942 | 23 days |
| 1943 | 19 days |
| 1944 | 24 days |
| 1945 | 19 days |
| 1946 | 19 days |
| 1947 | 26 days |
| 1948 | 21 days |
| 1949 | 15 days |
| 1950 | 17 days |
| 1951 | 15 days |
| 1952 | 15 days |
| 1953 | 23 days |
| 1954 | 19 days |
| 1955 | 17 days |
| 1956 | 27 days |
| 1957 | 23 days |
| 1958 | 18 days |
| 1959 | 15 days |
| 1960 | 17 days |
| 1961 | 10 days |
| 1962 | 18 days |
| 1963 | 22 days |
| 1964 | 18 days |
| 1965 | 14 days |
| 1966 | 23 days |
| 1967 | 19 days |
| 1968 | 25 days |
| 1969 | 31 days |
| 1970 | 21 days |
| 1971 | 12 days |
| 1972 | 22 days |
| 1973 | 16 days |
| 1974 | 13 days |
| 1975 | 14 days |
| 1976 | 15 days |
| 1977 | 13 days |
| 1978 | 16 days |
| 1979 | 33 days |
| 1980 | 15 days |
| 1981 | 16 days |
| 1982 | 16 days |
| 1983 | 26 days |
| 1984 | 14 days |
| 1985 | 12 days |
| 1986 | 15 days |
| 1987 | 29 days |
| 1988 | 21 days |
| 1989 | 24 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
79 years with a frostAcross 79 years with a frost, the median last spring frost at Plymouth Pwr Substn falls on 7 May and the median first autumn frost on 6 October, which leaves a median of 152 days between them.
In 1957 to 1988 the median growing season was 152 days. That is 3 days fewer than in 1906 to 1935.
Fitted over all years, the growing season changes by -0.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1906 to 1935) | Recent period (1957 to 1988) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 7 May | 5 May | 7 May | 2 days later | -0.3 days per decade |
| First autumn frost | 6 October | 11 October | 5 October | 6 days earlier | -0.5 days per decade |
| Growing days | 152 days | 155 days | 152 days | 3 days fewer | -0.2 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
83 years, 1906 to 1988A day with at least 55.9 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 136.7 mm (5.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 55.9 mm (2.2 in) | |
| 5 years | 72.8 mm (2.9 in) | |
| 10 years | 85.6 mm (3.4 in) | |
| 25 years | 104.1 mm (4.1 in) | |
| 50 years | 119.6 mm (4.7 in) | |
| 100 years | 136.7 mm (5.4 in) | Longer than the 83 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, 83 years of values from 1906 to 1988.
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: 114.3 mm (4.5 in) in 1983; 112.0 mm (4.4 in) in 1938; 111.0 mm (4.4 in) in 1954.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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).