Coldwater Weather Records (CA006111766)
Record envelope, standing records and threshold days for Coldwater (CA006111766), Ontario, Canada, with 72 years of record.
Key Facts for Coldwater
- Coldwater (CA006111766) is a weather station in Ontario, Canada at 44.70 latitude and -79.67 longitude, 183 m (600 ft) above sea level.
- The station reports from 1883 to 1954, 72 years of record.
- 1,464 records set at Coldwater still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Coldwater set a daily record high minimum temperature of 16.1 C (61.0 F) on 30 September 1954.
About the Station
- Location: Ontario, Canada, 44.70 latitude, -79.67 longitude.
- Elevation: 183 m (600 ft).
- Period of record: 1883 to 1954, 72 years.
- Eligible elements: tmax, tmin, prcp, snow.
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 | 13.3 C (55.9 F) | -43.3 C (-45.9 F) | n/a | n/a |
| Feb | 12.8 C (55.0 F) | -43.9 C (-47.0 F) | n/a | n/a |
| Mar | 25.6 C (78.1 F) | -38.3 C (-36.9 F) | n/a | n/a |
| Apr | 29.4 C (84.9 F) | -24.4 C (-11.9 F) | n/a | n/a |
| May | 34.4 C (93.9 F) | -7.2 C (19.0 F) | n/a | n/a |
| Jun | 35.6 C (96.1 F) | -3.3 C (26.1 F) | n/a | n/a |
| Jul | 36.7 C (98.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Aug | 36.7 C (98.1 F) | -5.6 C (21.9 F) | n/a | n/a |
| Sep | 35.0 C (95.0 F) | -7.2 C (19.0 F) | n/a | n/a |
| Oct | 30.6 C (87.1 F) | -13.3 C (8.1 F) | n/a | n/a |
| Nov | 26.1 C (79.0 F) | -26.1 C (-15.0 F) | n/a | n/a |
| Dec | 17.2 C (63.0 F) | -44.4 C (-47.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1885 | 3 |
| 1886 | 22 |
| 1887 | 19 |
| 1888 | 33 |
| 1889 | 23 |
| 1890 | 33 |
| 1891 | 34 |
| 1892 | 15 |
| 1893 | 17 |
| 1894 | 37 |
| 1895 | 49 |
| 1896 | 33 |
| 1897 | 20 |
| 1898 | 32 |
| 1899 | 29 |
| 1900 | 26 |
| 1901 | 12 |
| 1902 | 19 |
| 1904 | 16 |
| 1905 | 5 |
| 1907 | 31 |
| 1908 | 33 |
| 1909 | 43 |
| 1910 | 16 |
| 1911 | 6 |
| 1912 | 21 |
| 1913 | 43 |
| 1914 | 40 |
| 1915 | 14 |
| 1916 | 21 |
| 1917 | 21 |
| 1918 | 25 |
| 1919 | 19 |
| 1920 | 17 |
| 1921 | 25 |
| 1922 | 8 |
| 1923 | 1 |
| 1925 | 2 |
| 1926 | 14 |
| 1927 | 12 |
| 1929 | 2 |
| 1930 | 26 |
| 1931 | 23 |
| 1932 | 26 |
| 1933 | 38 |
| 1934 | 36 |
| 1935 | 24 |
| 1936 | 45 |
| 1937 | 14 |
| 1938 | 15 |
| 1939 | 14 |
| 1940 | 19 |
| 1941 | 20 |
| 1942 | 14 |
| 1943 | 34 |
| 1944 | 14 |
| 1945 | 42 |
| 1946 | 27 |
| 1947 | 37 |
| 1948 | 14 |
| 1949 | 21 |
| 1950 | 17 |
| 1951 | 21 |
| 1952 | 16 |
| 1953 | 11 |
| 1954 | 5 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1927-01-05 | Record daily snowfall | Record daily snowfall 66.0 cm (26.0 in) |
| 1933-12-29 | Record low minimum temperature | Record low minimum temperature -44.4 C (-47.9 F) |
| 1938-09-22 | Record daily precipitation | Record daily precipitation 95.3 mm (3.8 in) |
| 1944-06-23 | Record daily precipitation | Record daily precipitation 133.4 mm (5.3 in) |
Wettest Day of Each Month
Jun: 133.4 mm (5.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 66.0 mm (2.6 in) | 5 January 1927 |
| Feb | 50.8 mm (2.0 in) | 24 February 1954 |
| Mar | 63.5 mm (2.5 in) | 29 March 1951 |
| Apr | 57.2 mm (2.3 in) | 27 April 1954 |
| May | 57.2 mm (2.3 in) | 17 May 1937 |
| Jun | 133.4 mm (5.3 in) | 23 June 1944 |
| Jul | 91.9 mm (3.6 in) | 25 July 1899 |
| Aug | 52.1 mm (2.1 in) | 3 August 1885 |
| Sep | 95.3 mm (3.8 in) | 22 September 1938 |
| Oct | 66.0 mm (2.6 in) | 14 October 1893 |
| Nov | 86.4 mm (3.4 in) | 9 November 1888 |
| Dec | 46.2 mm (1.8 in) | 5 December 1898 |
Period of Record Coverage
1885 to 1954| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1885 | 121 | 33% | No |
| 1886 | 365 | 100% | Yes |
| 1887 | 365 | 100% | Yes |
| 1888 | 361 | 99% | Yes |
| 1889 | 365 | 100% | Yes |
| 1890 | 365 | 100% | Yes |
| 1891 | 364 | 100% | Yes |
| 1892 | 366 | 100% | Yes |
| 1893 | 364 | 100% | Yes |
| 1894 | 365 | 100% | Yes |
| 1895 | 365 | 100% | Yes |
| 1896 | 354 | 97% | Yes |
| 1897 | 365 | 100% | Yes |
| 1898 | 365 | 100% | Yes |
| 1899 | 365 | 100% | Yes |
| 1900 | 365 | 100% | Yes |
| 1901 | 365 | 100% | Yes |
| 1902 | 361 | 99% | Yes |
| 1904 | 364 | 99% | Yes |
| 1905 | 212 | 58% | No |
| 1907 | 333 | 91% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 359 | 98% | Yes |
| 1911 | 213 | 58% | No |
| 1912 | 366 | 100% | Yes |
| 1913 | 363 | 99% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 337 | 92% | Yes |
| 1916 | 366 | 100% | Yes |
| 1917 | 364 | 100% | Yes |
| 1918 | 303 | 83% | No |
| 1919 | 214 | 59% | No |
| 1920 | 209 | 57% | No |
| 1921 | 363 | 99% | Yes |
| 1922 | 272 | 75% | No |
| 1923 | 31 | 8% | No |
| 1925 | 31 | 8% | No |
| 1926 | 273 | 75% | No |
| 1927 | 243 | 67% | No |
| 1929 | 60 | 16% | No |
| 1930 | 333 | 91% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 361 | 99% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 298 | 82% | No |
| 1936 | 365 | 100% | Yes |
| 1937 | 364 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 304 | 83% | No |
| 1940 | 304 | 83% | No |
| 1941 | 336 | 92% | Yes |
| 1942 | 363 | 99% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 334 | 91% | Yes |
| 1945 | 360 | 99% | Yes |
| 1946 | 360 | 99% | Yes |
| 1947 | 364 | 100% | Yes |
| 1948 | 363 | 99% | Yes |
| 1949 | 361 | 99% | Yes |
| 1950 | 360 | 99% | Yes |
| 1951 | 333 | 91% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 244 | 67% | No |
| 1954 | 181 | 50% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 September 1954 | Coldwater, CA | daily high min | 16.1 C (61.0 F) | 2.2 C (4.0 F) | 68 years | 31 of 100 (Routine) |
| 17 September 1954 | Coldwater, CA | daily low max (Tie) | 12.2 C (54.0 F) | tie | 19 years | 3 of 100 (Routine) |
| 12 August 1954 | Coldwater, CA | daily low max | 16.7 C (62.1 F) | 0.5 C (0.9 F) | 52 years | 23 of 100 (Routine) |
| 10 July 1954 | Coldwater, CA | daily low min (Tie) | 5.0 C (41.0 F) | tie | 62 years | 6 of 100 (Routine) |
| 14 June 1954 | Coldwater, CA | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 4 years | 9 of 100 (Routine) |
| 27 April 1954 | Coldwater, CA | monthly rain | 57.2 mm (2.3 in) | 8.9 mm (0.35 in) | 4 years | 30 of 100 (Routine) |
| 14 April 1954 | Coldwater, CA | daily rain | 14.0 mm (0.6 in) | 0.5 mm (0.02 in) | 69 years | 20 of 100 (Routine) |
| 11 April 1954 | Coldwater, CA | daily high min (Tie) | 8.9 C (48.0 F) | tie | 8 years | 2 of 100 (Routine) |
| 5 April 1954 | Coldwater, CA | daily snowfall | 10.2 cm (4.0 in) | 5.6 cm (2.2 in) | 27 years | 25 of 100 (Routine) |
| 4 April 1954 | Coldwater, CA | monthly low min | -24.4 C (-11.9 F) | 0.5 C (0.9 F) | 21 years | 24 of 100 (Routine) |
| 3 April 1954 | Coldwater, CA | daily low min | -18.9 C (-2.0 F) | 6.1 C (11.0 F) | 41 years | 31 of 100 (Routine) |
| 24 February 1954 | Coldwater, CA | monthly rain | 50.8 mm (2.0 in) | 7.6 mm (0.30 in) | 32 years | 39 of 100 (Notable) |
| 30 January 1954 | Coldwater, CA | daily snowfall | 17.8 cm (7.0 in) | 2.6 cm (1.0 in) | 0 years | 10 of 100 (Routine) |
| 19 October 1953 | Coldwater, CA | daily high max | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 43 years | 18 of 100 (Routine) |
| 19 October 1953 | Coldwater, CA | daily high min (Tie) | 10.6 C (51.1 F) | tie | 32 years | 3 of 100 (Routine) |
| 12 September 1953 | Coldwater, CA | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 22 years | 13 of 100 (Routine) |
| 4 September 1953 | Coldwater, CA | daily high max | 33.9 C (93.0 F) | 2.2 C (4.0 F) | 54 years | 26 of 100 (Routine) |
| 4 September 1953 | Coldwater, CA | daily high min | 21.7 C (71.1 F) | 0.6 C (1.1 F) | 54 years | 23 of 100 (Routine) |
| 3 September 1953 | Coldwater, CA | daily high min (Tie) | 20.6 C (69.1 F) | tie | 16 years | 2 of 100 (Routine) |
| 2 September 1953 | Coldwater, CA | daily high min | 21.1 C (70.0 F) | 0.5 C (0.9 F) | 32 years | 15 of 100 (Routine) |
Climate Trend
43 complete years, 1886 to 1952| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1886 | 5.9 C | +0.62 C |
| 1887 | 5.8 C | +0.52 C |
| 1888 | 4.2 C | -1.11 C |
| 1889 | 5.6 C | +0.33 C |
| 1890 | 5.7 C | +0.38 C |
| 1891 | 6.0 C | +0.65 C |
| 1892 | 5.5 C | +0.24 C |
| 1893 | 4.3 C | -1.05 C |
| 1894 | 6.2 C | +0.85 C |
| 1895 | 4.9 C | -0.44 C |
| 1896 | 4.3 C | -1.00 C |
| 1897 | 5.6 C | +0.25 C |
| 1898 | 6.1 C | +0.84 C |
| 1899 | 5.1 C | -0.22 C |
| 1900 | 5.8 C | +0.46 C |
| 1901 | 5.2 C | -0.07 C |
| 1902 | 5.3 C | -0.02 C |
| 1904 | 3.7 C | -1.59 C |
| 1908 | 4.8 C | -0.47 C |
| 1909 | 4.8 C | -0.46 C |
| 1910 | 4.2 C | -1.13 C |
| 1912 | 4.3 C | -1.00 C |
| 1913 | 6.6 C | +1.34 C |
| 1914 | 4.5 C | -0.76 C |
| 1916 | 5.2 C | -0.09 C |
| 1917 | 3.1 C | -2.17 C |
| 1921 | 7.0 C | +1.67 C |
| 1931 | 6.7 C | +1.39 C |
| 1932 | 5.8 C | +0.53 C |
| 1933 | 5.4 C | +0.12 C |
| 1934 | 3.9 C | -1.45 C |
| 1936 | 3.9 C | -1.39 C |
| 1937 | 5.5 C | +0.15 C |
| 1938 | 5.6 C | +0.31 C |
| 1942 | 5.9 C | +0.61 C |
| 1943 | 4.6 C | -0.70 C |
| 1945 | 4.6 C | -0.72 C |
| 1946 | 5.5 C | +0.15 C |
| 1947 | 5.7 C | +0.36 C |
| 1948 | 5.8 C | +0.46 C |
| 1949 | 6.9 C | +1.56 C |
| 1950 | 5.4 C | +0.13 C |
| 1952 | 7.3 C | +2.01 C |
The fitted trend in annual mean temperature here over 1886 to 1952 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (-0.1 to 0.2) per decade | 0.1 F (-0.1 to 0.4) per decade | 1886 to 1952 | 43 | Not clearly different from zero |
| Mean daily maximum | 0.03 C (-0.11 to 0.18) per decade | 0.1 F (-0.2 to 0.3) per decade | 1886 to 1952 | 43 | Not clearly different from zero |
| Mean daily minimum | 0.1 C (-0.1 to 0.3) per decade | 0.2 F (-0.1 to 0.5) per decade | 1886 to 1952 | 43 | 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
1883 to 1954| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 36.7 C (98.1 F) | 1887 | 33.9 C (93.0 F) | 66 |
| Coldest night (TNn) | -44.4 C (-47.9 F) | 1933 | -35.0 C (-31.0 F) | 66 |
| Wettest day (Rx1day) | 133.4 mm (5.3 in) | 1944 | 42.3 mm (1.7 in) | 68 |
| Wettest five days (Rx5day) | 158.3 mm (6.2 in) | 1942 | 67.8 mm (2.7 in) | 68 |
| Longest dry spell (CDD) | 54 days | 1936 | 19 days | 68 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1883 | n/a |
| 1884 | n/a |
| 1885 | 25.0 C (77.0 F) |
| 1886 | 35.6 C (96.1 F) |
| 1887 | 36.7 C (98.1 F) |
| 1888 | 35.0 C (95.0 F) |
| 1889 | 32.8 C (91.0 F) |
| 1890 | 32.8 C (91.0 F) |
| 1891 | 33.9 C (93.0 F) |
| 1892 | 35.0 C (95.0 F) |
| 1893 | 33.9 C (93.0 F) |
| 1894 | 35.6 C (96.1 F) |
| 1895 | 35.0 C (95.0 F) |
| 1896 | 34.4 C (93.9 F) |
| 1897 | 36.1 C (97.0 F) |
| 1898 | 33.9 C (93.0 F) |
| 1899 | 34.4 C (93.9 F) |
| 1900 | 35.0 C (95.0 F) |
| 1901 | 35.0 C (95.0 F) |
| 1902 | 33.9 C (93.0 F) |
| 1904 | 32.8 C (91.0 F) |
| 1905 | 32.2 C (90.0 F) |
| 1907 | 33.3 C (91.9 F) |
| 1908 | 33.3 C (91.9 F) |
| 1909 | 32.2 C (90.0 F) |
| 1910 | 33.3 C (91.9 F) |
| 1911 | 33.3 C (91.9 F) |
| 1912 | 32.8 C (91.0 F) |
| 1913 | 35.0 C (95.0 F) |
| 1914 | 36.7 C (98.1 F) |
| 1915 | 31.1 C (88.0 F) |
| 1916 | 35.0 C (95.0 F) |
| 1917 | 34.4 C (93.9 F) |
| 1918 | 35.0 C (95.0 F) |
| 1919 | 33.3 C (91.9 F) |
| 1920 | 30.6 C (87.1 F) |
| 1921 | 34.4 C (93.9 F) |
| 1922 | 29.4 C (84.9 F) |
| 1923 | 5.6 C (42.1 F) |
| 1925 | 8.9 C (48.0 F) |
| 1926 | 36.1 C (97.0 F) |
| 1927 | 28.9 C (84.0 F) |
| 1929 | 17.8 C (64.0 F) |
| 1930 | 33.3 C (91.9 F) |
| 1931 | 35.6 C (96.1 F) |
| 1932 | 33.9 C (93.0 F) |
| 1933 | 35.6 C (96.1 F) |
| 1934 | 33.9 C (93.0 F) |
| 1935 | 32.8 C (91.0 F) |
| 1936 | 35.6 C (96.1 F) |
| 1937 | 33.3 C (91.9 F) |
| 1938 | 33.9 C (93.0 F) |
| 1939 | 33.3 C (91.9 F) |
| 1940 | 31.7 C (89.1 F) |
| 1941 | 33.9 C (93.0 F) |
| 1942 | 32.2 C (90.0 F) |
| 1943 | 31.7 C (89.1 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 32.2 C (90.0 F) |
| 1946 | 31.1 C (88.0 F) |
| 1947 | 35.0 C (95.0 F) |
| 1948 | 35.0 C (95.0 F) |
| 1949 | 33.9 C (93.0 F) |
| 1950 | 32.2 C (90.0 F) |
| 1951 | 30.0 C (86.0 F) |
| 1952 | 33.3 C (91.9 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 29.4 C (84.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1883 | n/a |
| 1884 | n/a |
| 1885 | -21.7 C (-7.1 F) |
| 1886 | -36.7 C (-34.1 F) |
| 1887 | -35.0 C (-31.0 F) |
| 1888 | -38.9 C (-38.0 F) |
| 1889 | -31.7 C (-25.1 F) |
| 1890 | -28.9 C (-20.0 F) |
| 1891 | -27.8 C (-18.0 F) |
| 1892 | -31.7 C (-25.1 F) |
| 1893 | -32.2 C (-26.0 F) |
| 1894 | -31.7 C (-25.1 F) |
| 1895 | -31.7 C (-25.1 F) |
| 1896 | -39.4 C (-38.9 F) |
| 1897 | -32.8 C (-27.0 F) |
| 1898 | -36.7 C (-34.1 F) |
| 1899 | -35.6 C (-32.1 F) |
| 1900 | -38.3 C (-36.9 F) |
| 1901 | -30.6 C (-23.1 F) |
| 1902 | -28.9 C (-20.0 F) |
| 1904 | -37.8 C (-36.0 F) |
| 1905 | -36.1 C (-33.0 F) |
| 1907 | -39.4 C (-38.9 F) |
| 1908 | -43.3 C (-45.9 F) |
| 1909 | -28.9 C (-20.0 F) |
| 1910 | -35.6 C (-32.1 F) |
| 1911 | -31.7 C (-25.1 F) |
| 1912 | -43.3 C (-45.9 F) |
| 1913 | -35.0 C (-31.0 F) |
| 1914 | -43.9 C (-47.0 F) |
| 1915 | -29.4 C (-20.9 F) |
| 1916 | -33.3 C (-27.9 F) |
| 1917 | -36.7 C (-34.1 F) |
| 1918 | -34.4 C (-29.9 F) |
| 1919 | -35.0 C (-31.0 F) |
| 1920 | -41.1 C (-42.0 F) |
| 1921 | -36.7 C (-34.1 F) |
| 1922 | -33.3 C (-27.9 F) |
| 1923 | -35.0 C (-31.0 F) |
| 1925 | -35.0 C (-31.0 F) |
| 1926 | -34.4 C (-29.9 F) |
| 1927 | -36.1 C (-33.0 F) |
| 1929 | -30.6 C (-23.1 F) |
| 1930 | -39.4 C (-38.9 F) |
| 1931 | -32.2 C (-26.0 F) |
| 1932 | -33.3 C (-27.9 F) |
| 1933 | -44.4 C (-47.9 F) |
| 1934 | -41.1 C (-42.0 F) |
| 1935 | -40.0 C (-40.0 F) |
| 1936 | -37.2 C (-35.0 F) |
| 1937 | -29.4 C (-20.9 F) |
| 1938 | -38.3 C (-36.9 F) |
| 1939 | -37.8 C (-36.0 F) |
| 1940 | -37.8 C (-36.0 F) |
| 1941 | -31.1 C (-24.0 F) |
| 1942 | -44.4 C (-47.9 F) |
| 1943 | -37.2 C (-35.0 F) |
| 1944 | -32.8 C (-27.0 F) |
| 1945 | -41.1 C (-42.0 F) |
| 1946 | -37.2 C (-35.0 F) |
| 1947 | -40.0 C (-40.0 F) |
| 1948 | -39.4 C (-38.9 F) |
| 1949 | -28.3 C (-18.9 F) |
| 1950 | -34.4 C (-29.9 F) |
| 1951 | -36.1 C (-33.0 F) |
| 1952 | -34.4 C (-29.9 F) |
| 1953 | -30.6 C (-23.1 F) |
| 1954 | -24.4 C (-11.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1883 | 40.6 mm (1.6 in) |
| 1884 | 38.1 mm (1.5 in) |
| 1885 | 52.1 mm (2.1 in) |
| 1886 | 40.6 mm (1.6 in) |
| 1887 | 38.1 mm (1.5 in) |
| 1888 | 86.4 mm (3.4 in) |
| 1889 | 44.5 mm (1.8 in) |
| 1890 | 34.3 mm (1.4 in) |
| 1891 | 53.3 mm (2.1 in) |
| 1892 | 45.2 mm (1.8 in) |
| 1893 | 66.0 mm (2.6 in) |
| 1894 | 30.0 mm (1.2 in) |
| 1895 | 39.6 mm (1.6 in) |
| 1896 | 44.2 mm (1.7 in) |
| 1897 | 30.7 mm (1.2 in) |
| 1898 | 46.2 mm (1.8 in) |
| 1899 | 91.9 mm (3.6 in) |
| 1900 | 41.4 mm (1.6 in) |
| 1901 | 83.3 mm (3.3 in) |
| 1902 | 50.8 mm (2.0 in) |
| 1904 | 47.5 mm (1.9 in) |
| 1905 | 13.5 mm (0.5 in) |
| 1907 | 29.0 mm (1.1 in) |
| 1908 | 47.0 mm (1.9 in) |
| 1909 | 53.6 mm (2.1 in) |
| 1910 | 44.7 mm (1.8 in) |
| 1911 | 33.3 mm (1.3 in) |
| 1912 | 26.2 mm (1.0 in) |
| 1913 | 31.0 mm (1.2 in) |
| 1914 | 34.3 mm (1.4 in) |
| 1915 | 34.0 mm (1.3 in) |
| 1916 | 30.5 mm (1.2 in) |
| 1917 | 31.0 mm (1.2 in) |
| 1918 | 52.6 mm (2.1 in) |
| 1919 | 27.9 mm (1.1 in) |
| 1920 | 30.0 mm (1.2 in) |
| 1921 | 29.7 mm (1.2 in) |
| 1922 | 43.2 mm (1.7 in) |
| 1923 | 11.4 mm (0.4 in) |
| 1925 | 16.0 mm (0.6 in) |
| 1926 | 32.3 mm (1.3 in) |
| 1927 | 66.0 mm (2.6 in) |
| 1929 | 21.6 mm (0.9 in) |
| 1930 | 34.3 mm (1.4 in) |
| 1931 | 17.8 mm (0.7 in) |
| 1932 | 53.3 mm (2.1 in) |
| 1933 | 31.8 mm (1.3 in) |
| 1934 | 44.5 mm (1.8 in) |
| 1935 | 49.0 mm (1.9 in) |
| 1936 | 31.2 mm (1.2 in) |
| 1937 | 57.2 mm (2.3 in) |
| 1938 | 95.3 mm (3.8 in) |
| 1939 | 59.7 mm (2.4 in) |
| 1940 | 36.3 mm (1.4 in) |
| 1941 | 56.6 mm (2.2 in) |
| 1942 | 70.4 mm (2.8 in) |
| 1943 | 33.5 mm (1.3 in) |
| 1944 | 133.4 mm (5.3 in) |
| 1945 | 45.7 mm (1.8 in) |
| 1946 | 31.8 mm (1.3 in) |
| 1947 | 53.3 mm (2.1 in) |
| 1948 | 45.0 mm (1.8 in) |
| 1949 | 38.1 mm (1.5 in) |
| 1950 | 48.3 mm (1.9 in) |
| 1951 | 63.5 mm (2.5 in) |
| 1952 | 38.1 mm (1.5 in) |
| 1953 | 50.8 mm (2.0 in) |
| 1954 | 57.2 mm (2.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1883 | 73.7 mm (2.9 in) |
| 1884 | 86.4 mm (3.4 in) |
| 1885 | 118.2 mm (4.7 in) |
| 1886 | 68.8 mm (2.7 in) |
| 1887 | 81.3 mm (3.2 in) |
| 1888 | 104.9 mm (4.1 in) |
| 1889 | 72.1 mm (2.8 in) |
| 1890 | 79.7 mm (3.1 in) |
| 1891 | 66.7 mm (2.6 in) |
| 1892 | 62.1 mm (2.4 in) |
| 1893 | 66.0 mm (2.6 in) |
| 1894 | 62.3 mm (2.5 in) |
| 1895 | 58.9 mm (2.3 in) |
| 1896 | 100.6 mm (4.0 in) |
| 1897 | 63.5 mm (2.5 in) |
| 1898 | 101.1 mm (4.0 in) |
| 1899 | 91.9 mm (3.6 in) |
| 1900 | 56.9 mm (2.2 in) |
| 1901 | 129.5 mm (5.1 in) |
| 1902 | 82.5 mm (3.2 in) |
| 1904 | 48.3 mm (1.9 in) |
| 1905 | 30.0 mm (1.2 in) |
| 1907 | 39.4 mm (1.6 in) |
| 1908 | 55.6 mm (2.2 in) |
| 1909 | 92.9 mm (3.7 in) |
| 1910 | 53.0 mm (2.1 in) |
| 1911 | 56.7 mm (2.2 in) |
| 1912 | 55.6 mm (2.2 in) |
| 1913 | 55.4 mm (2.2 in) |
| 1914 | 81.8 mm (3.2 in) |
| 1915 | 55.3 mm (2.2 in) |
| 1916 | 77.0 mm (3.0 in) |
| 1917 | 71.7 mm (2.8 in) |
| 1918 | 74.2 mm (2.9 in) |
| 1919 | 76.7 mm (3.0 in) |
| 1920 | 55.6 mm (2.2 in) |
| 1921 | 61.9 mm (2.4 in) |
| 1922 | 52.3 mm (2.1 in) |
| 1923 | 29.5 mm (1.2 in) |
| 1925 | 28.9 mm (1.1 in) |
| 1926 | 46.5 mm (1.8 in) |
| 1927 | 75.6 mm (3.0 in) |
| 1929 | 47.8 mm (1.9 in) |
| 1930 | 46.7 mm (1.8 in) |
| 1931 | 28.7 mm (1.1 in) |
| 1932 | 76.4 mm (3.0 in) |
| 1933 | 58.8 mm (2.3 in) |
| 1934 | 53.6 mm (2.1 in) |
| 1935 | 78.7 mm (3.1 in) |
| 1936 | 54.1 mm (2.1 in) |
| 1937 | 60.5 mm (2.4 in) |
| 1938 | 117.6 mm (4.6 in) |
| 1939 | 77.0 mm (3.0 in) |
| 1940 | 59.0 mm (2.3 in) |
| 1941 | 107.2 mm (4.2 in) |
| 1942 | 158.3 mm (6.2 in) |
| 1943 | 72.4 mm (2.9 in) |
| 1944 | 133.4 mm (5.3 in) |
| 1945 | 107.9 mm (4.2 in) |
| 1946 | 90.2 mm (3.6 in) |
| 1947 | 118.0 mm (4.6 in) |
| 1948 | 59.5 mm (2.3 in) |
| 1949 | 50.8 mm (2.0 in) |
| 1950 | 83.9 mm (3.3 in) |
| 1951 | 81.3 mm (3.2 in) |
| 1952 | 74.1 mm (2.9 in) |
| 1953 | 63.5 mm (2.5 in) |
| 1954 | 57.2 mm (2.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1883 | 10 days |
| 1884 | 17 days |
| 1885 | 15 days |
| 1886 | 17 days |
| 1887 | 24 days |
| 1888 | 25 days |
| 1889 | 21 days |
| 1890 | 13 days |
| 1891 | 14 days |
| 1892 | 13 days |
| 1893 | 11 days |
| 1894 | 10 days |
| 1895 | 20 days |
| 1896 | 15 days |
| 1897 | 17 days |
| 1898 | 15 days |
| 1899 | 14 days |
| 1900 | 17 days |
| 1901 | 20 days |
| 1902 | 20 days |
| 1904 | 26 days |
| 1905 | 16 days |
| 1907 | 24 days |
| 1908 | 39 days |
| 1909 | 19 days |
| 1910 | 17 days |
| 1911 | 23 days |
| 1912 | 23 days |
| 1913 | 41 days |
| 1914 | 20 days |
| 1915 | 20 days |
| 1916 | 37 days |
| 1917 | 24 days |
| 1918 | 34 days |
| 1919 | 19 days |
| 1920 | 16 days |
| 1921 | 21 days |
| 1922 | 20 days |
| 1923 | 6 days |
| 1925 | 5 days |
| 1926 | 14 days |
| 1927 | 16 days |
| 1929 | 8 days |
| 1930 | 40 days |
| 1931 | 19 days |
| 1932 | 33 days |
| 1933 | 15 days |
| 1934 | 25 days |
| 1935 | 19 days |
| 1936 | 54 days |
| 1937 | 22 days |
| 1938 | 21 days |
| 1939 | 19 days |
| 1940 | 11 days |
| 1941 | 23 days |
| 1942 | 19 days |
| 1943 | 19 days |
| 1944 | 27 days |
| 1945 | 16 days |
| 1946 | 19 days |
| 1947 | 24 days |
| 1948 | 24 days |
| 1949 | 24 days |
| 1950 | 24 days |
| 1951 | 12 days |
| 1952 | 27 days |
| 1953 | 14 days |
| 1954 | 11 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
43 years with a frostAcross 43 years with a frost, the median last spring frost at Coldwater falls on 25 May and the median first autumn frost on 13 September, which leaves a median of 114 days between them.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1899 to 1952) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 May | n/a | 26 May | n/a | +0.5 days per decade |
| First autumn frost | 13 September | n/a | 12 September | n/a | -0.3 days per decade |
| Growing days | 114 days | n/a | 114 days | n/a | -0.8 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
38 years, 1884 to 1951A day with at least 42.1 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 119.5 mm (4.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 42.1 mm (1.7 in) | |
| 5 years | 56.7 mm (2.2 in) | |
| 10 years | 68.5 mm (2.7 in) | |
| 25 years | 86.1 mm (3.4 in) | |
| 50 years | 101.7 mm (4.0 in) | Longer than the 38 years of record |
| 100 years | 119.5 mm (4.7 in) | Longer than the 38 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, 38 years of values from 1884 to 1951.
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: 95.3 mm (3.8 in) in 1938; 91.9 mm (3.6 in) in 1899; 86.4 mm (3.4 in) in 1888.
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 (2026-10-17).