Windsor Kings College Weather Records (CA008206410)
Record envelope, standing records and threshold days for Windsor Kings College (CA008206410), Nova Scotia, Canada, with 78 years of record.
Key Facts for Windsor Kings College
- Windsor Kings College (CA008206410) is a weather station in Nova Scotia, Canada at 44.98 latitude and -64.10 longitude, 27 m (89 ft) above sea level.
- The station reports from 1871 to 1948, 78 years of record.
- 1,464 records set at Windsor Kings College still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Windsor Kings College set a daily record low minimum temperature of -23.9 C (-11.0 F) on 14 March 1948.
About the Station
- Location: Nova Scotia, Canada, 44.98 latitude, -64.10 longitude.
- Elevation: 27 m (89 ft).
- Period of record: 1871 to 1948, 78 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 | 15.0 C (59.0 F) | -29.4 C (-20.9 F) | n/a | n/a |
| Feb | 16.1 C (61.0 F) | -31.7 C (-25.1 F) | n/a | n/a |
| Mar | 23.9 C (75.0 F) | -24.4 C (-11.9 F) | n/a | n/a |
| Apr | 28.3 C (82.9 F) | -18.3 C (-0.9 F) | n/a | n/a |
| May | 32.2 C (90.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Jun | 35.6 C (96.1 F) | -2.2 C (28.0 F) | n/a | n/a |
| Jul | 35.0 C (95.0 F) | 2.2 C (36.0 F) | n/a | n/a |
| Aug | 37.8 C (100.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Sep | 33.9 C (93.0 F) | -2.2 C (28.0 F) | n/a | n/a |
| Oct | 30.0 C (86.0 F) | -7.8 C (18.0 F) | n/a | n/a |
| Nov | 21.1 C (70.0 F) | -16.7 C (1.9 F) | n/a | n/a |
| Dec | 16.7 C (62.1 F) | -25.0 C (-13.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1872 | 4 |
| 1873 | 18 |
| 1874 | 28 |
| 1876 | 2 |
| 1877 | 15 |
| 1878 | 15 |
| 1879 | 39 |
| 1880 | 19 |
| 1881 | 22 |
| 1882 | 21 |
| 1883 | 6 |
| 1903 | 31 |
| 1904 | 33 |
| 1905 | 30 |
| 1906 | 32 |
| 1907 | 39 |
| 1908 | 25 |
| 1909 | 26 |
| 1910 | 32 |
| 1911 | 37 |
| 1912 | 31 |
| 1913 | 48 |
| 1914 | 36 |
| 1915 | 27 |
| 1916 | 35 |
| 1917 | 26 |
| 1918 | 38 |
| 1919 | 30 |
| 1920 | 42 |
| 1921 | 30 |
| 1922 | 27 |
| 1923 | 33 |
| 1924 | 11 |
| 1925 | 24 |
| 1926 | 29 |
| 1927 | 26 |
| 1928 | 12 |
| 1929 | 22 |
| 1930 | 31 |
| 1931 | 26 |
| 1932 | 32 |
| 1933 | 30 |
| 1934 | 32 |
| 1935 | 14 |
| 1936 | 32 |
| 1937 | 24 |
| 1938 | 26 |
| 1939 | 25 |
| 1940 | 15 |
| 1941 | 19 |
| 1942 | 38 |
| 1943 | 19 |
| 1944 | 11 |
| 1945 | 29 |
| 1946 | 26 |
| 1947 | 26 |
| 1948 | 8 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1928-08-15 | Record high maximum temperature | Record high maximum temperature 35.6 C (96.1 F) |
| 1931-05-29 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
| 1935-08-19 | Record high maximum temperature | Record high maximum temperature 37.8 C (100.0 F) |
| 1942-09-22 | Record daily precipitation | Record daily precipitation 124.0 mm (4.9 in) |
Wettest Day of Each Month
Sep: 124.0 mm (4.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 57.7 mm (2.3 in) | 27 January 1947 |
| Feb | 60.5 mm (2.4 in) | 23 February 1928 |
| Mar | 71.1 mm (2.8 in) | 30 March 1878 |
| Apr | 53.1 mm (2.1 in) | 26 April 1946 |
| May | 59.9 mm (2.4 in) | 4 May 1936 |
| Jun | 50.8 mm (2.0 in) | 3 June 1947 |
| Jul | 69.6 mm (2.7 in) | 23 July 1912 |
| Aug | 82.0 mm (3.2 in) | 3 August 1908 |
| Sep | 124.0 mm (4.9 in) | 22 September 1942 |
| Oct | 75.4 mm (3.0 in) | 28 October 1933 |
| Nov | 66.0 mm (2.6 in) | 5 November 1923 |
| Dec | 75.7 mm (3.0 in) | 9 December 1928 |
Period of Record Coverage
1872 to 1948| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1872 | 127 | 35% | No |
| 1873 | 183 | 50% | No |
| 1874 | 204 | 56% | No |
| 1876 | 52 | 14% | No |
| 1877 | 261 | 72% | No |
| 1878 | 239 | 65% | No |
| 1879 | 361 | 99% | Yes |
| 1880 | 228 | 62% | No |
| 1881 | 317 | 87% | No |
| 1882 | 364 | 100% | Yes |
| 1883 | 179 | 49% | No |
| 1903 | 316 | 87% | No |
| 1904 | 365 | 100% | Yes |
| 1905 | 365 | 100% | Yes |
| 1906 | 364 | 100% | Yes |
| 1907 | 365 | 100% | Yes |
| 1908 | 366 | 100% | Yes |
| 1909 | 364 | 100% | Yes |
| 1910 | 365 | 100% | Yes |
| 1911 | 365 | 100% | Yes |
| 1912 | 366 | 100% | Yes |
| 1913 | 365 | 100% | Yes |
| 1914 | 365 | 100% | Yes |
| 1915 | 365 | 100% | Yes |
| 1916 | 365 | 100% | Yes |
| 1917 | 365 | 100% | Yes |
| 1918 | 365 | 100% | Yes |
| 1919 | 365 | 100% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 327 | 90% | No |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 350 | 96% | Yes |
| 1927 | 318 | 87% | No |
| 1928 | 335 | 92% | Yes |
| 1929 | 365 | 100% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 365 | 100% | Yes |
| 1933 | 364 | 100% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 363 | 99% | Yes |
| 1937 | 364 | 100% | Yes |
| 1938 | 365 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 346 | 95% | Yes |
| 1944 | 282 | 77% | No |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 324 | 89% | No |
| 1948 | 91 | 25% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 14 March 1948 | Windsor Kings College, CA | daily low min | -23.9 C (-11.0 F) | 2.2 C (4.0 F) | 43 years | 22 of 100 (Routine) |
| 13 March 1948 | Windsor Kings College, CA | daily low min | -23.3 C (-9.9 F) | 5.5 C (9.9 F) | 43 years | 28 of 100 (Routine) |
| 6 March 1948 | Windsor Kings College, CA | monthly low min | -24.4 C (-11.9 F) | 0.5 C (0.9 F) | 28 years | 25 of 100 (Routine) |
| 5 March 1948 | Windsor Kings College, CA | monthly low max | -16.1 C (3.0 F) | 3.9 C (7.0 F) | 64 years | 43 of 100 (Notable) |
| 2 March 1948 | Windsor Kings College, CA | daily snowfall | 21.6 cm (8.5 in) | 14.0 cm (5.5 in) | 10 years | 32 of 100 (Routine) |
| 2 March 1948 | Windsor Kings College, CA | daily rain | 21.6 mm (0.9 in) | 3.6 mm (0.14 in) | 2 years | 11 of 100 (Routine) |
| 13 February 1948 | Windsor Kings College, CA | daily rain | 13.7 mm (0.5 in) | 0.7 mm (0.03 in) | 37 years | 18 of 100 (Routine) |
| 11 February 1948 | Windsor Kings College, CA | daily low min | -25.0 C (-13.0 F) | 1.7 C (3.1 F) | 36 years | 19 of 100 (Routine) |
| 10 February 1948 | Windsor Kings College, CA | daily low max | -14.4 C (6.1 F) | 0.5 C (0.9 F) | 40 years | 19 of 100 (Routine) |
| 10 February 1948 | Windsor Kings College, CA | daily low min (Tie) | -24.4 C (-11.9 F) | tie | 21 years | 3 of 100 (Routine) |
| 5 February 1948 | Windsor Kings College, CA | daily low min (Tie) | -22.2 C (-8.0 F) | tie | 42 years | 4 of 100 (Routine) |
| 21 January 1948 | Windsor Kings College, CA | daily rain | 29.2 mm (1.1 in) | 6.3 mm (0.25 in) | 28 years | 22 of 100 (Routine) |
| 18 January 1948 | Windsor Kings College, CA | daily high min | 2.2 C (36.0 F) | 0.5 C (0.9 F) | 34 years | 17 of 100 (Routine) |
| 16 January 1948 | Windsor Kings College, CA | daily low min | -22.8 C (-9.0 F) | 0.6 C (1.1 F) | 18 years | 12 of 100 (Routine) |
| 13 January 1948 | Windsor Kings College, CA | daily rain | 29.7 mm (1.2 in) | 4.3 mm (0.17 in) | 33 years | 21 of 100 (Routine) |
| 27 December 1947 | Windsor Kings College, CA | daily snowfall | 16.5 cm (6.5 in) | 1.3 cm (0.5 in) | 16 years | 14 of 100 (Routine) |
| 26 December 1947 | Windsor Kings College, CA | daily low min | -21.1 C (-6.0 F) | 0.5 C (0.9 F) | 67 years | 27 of 100 (Routine) |
| 24 December 1947 | Windsor Kings College, CA | daily snowfall (Tie) | 8.9 cm (3.5 in) | tie | 42 years | 4 of 100 (Routine) |
| 23 December 1947 | Windsor Kings College, CA | daily snowfall (Tie) | 15.2 cm (6.0 in) | tie | 24 years | 3 of 100 (Routine) |
| 21 December 1947 | Windsor Kings College, CA | daily snowfall | 34.3 cm (13.5 in) | 31.8 cm (12.5 in) | 38 years | 58 of 100 (Notable) |
Climate Trend
39 complete years, 1879 to 1946| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1879 | 5.8 C | -0.79 C |
| 1882 | 5.5 C | -1.05 C |
| 1904 | 5.3 C | -1.26 C |
| 1905 | 5.4 C | -1.18 C |
| 1906 | 6.6 C | +0.07 C |
| 1907 | 5.6 C | -0.92 C |
| 1908 | 6.7 C | +0.09 C |
| 1909 | 6.9 C | +0.38 C |
| 1910 | 6.7 C | +0.16 C |
| 1911 | 6.3 C | -0.28 C |
| 1912 | 6.1 C | -0.45 C |
| 1913 | 7.3 C | +0.75 C |
| 1914 | 5.8 C | -0.73 C |
| 1915 | 7.0 C | +0.40 C |
| 1916 | 6.4 C | -0.18 C |
| 1917 | 5.7 C | -0.83 C |
| 1918 | 6.0 C | -0.54 C |
| 1919 | 6.7 C | +0.18 C |
| 1920 | 6.4 C | -0.13 C |
| 1921 | 7.0 C | +0.48 C |
| 1922 | 6.3 C | -0.27 C |
| 1924 | 6.4 C | -0.14 C |
| 1925 | 6.1 C | -0.43 C |
| 1929 | 6.5 C | -0.03 C |
| 1930 | 7.4 C | +0.87 C |
| 1931 | 8.1 C | +1.52 C |
| 1932 | 7.3 C | +0.71 C |
| 1933 | 6.8 C | +0.26 C |
| 1934 | 6.3 C | -0.30 C |
| 1935 | 6.7 C | +0.09 C |
| 1936 | 7.1 C | +0.58 C |
| 1937 | 7.9 C | +1.36 C |
| 1938 | 7.0 C | +0.42 C |
| 1939 | 6.8 C | +0.21 C |
| 1940 | 6.1 C | -0.42 C |
| 1941 | 6.2 C | -0.41 C |
| 1942 | 7.1 C | +0.52 C |
| 1945 | 7.3 C | +0.78 C |
| 1946 | 7.3 C | +0.70 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.4) per decade over 1879 to 1946. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 39 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 0.4) per decade | 0.4 F (0.2 to 0.6) per decade | 1879 to 1946 | 39 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.4) per decade | 0.4 F (0.2 to 0.7) per decade | 1879 to 1946 | 39 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.4) per decade | 0.4 F (0.2 to 0.7) per decade | 1879 to 1946 | 39 | 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
1871 to 1948| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 1935 | 32.2 C (90.0 F) | 57 |
| Coldest night (TNn) | -31.7 C (-25.1 F) | 1916 | -23.3 C (-9.9 F) | 57 |
| Wettest day (Rx1day) | 124.0 mm (4.9 in) | 1942 | 52.7 mm (2.1 in) | 56 |
| Wettest five days (Rx5day) | 203.5 mm (8.0 in) | 1942 | 79.1 mm (3.1 in) | 56 |
| Longest dry spell (CDD) | 29 days | 1944 | 15 days | 56 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1871 | n/a |
| 1872 | 20.6 C (69.1 F) |
| 1873 | 35.0 C (95.0 F) |
| 1874 | 34.4 C (93.9 F) |
| 1876 | 12.2 C (54.0 F) |
| 1877 | 28.3 C (82.9 F) |
| 1878 | 32.2 C (90.0 F) |
| 1879 | 33.3 C (91.9 F) |
| 1880 | 28.3 C (82.9 F) |
| 1881 | 32.2 C (90.0 F) |
| 1882 | 31.7 C (89.1 F) |
| 1883 | 28.3 C (82.9 F) |
| 1903 | 26.7 C (80.1 F) |
| 1904 | 32.8 C (91.0 F) |
| 1905 | 30.6 C (87.1 F) |
| 1906 | 33.9 C (93.0 F) |
| 1907 | 30.6 C (87.1 F) |
| 1908 | 33.3 C (91.9 F) |
| 1909 | 31.7 C (89.1 F) |
| 1910 | 31.1 C (88.0 F) |
| 1911 | 33.9 C (93.0 F) |
| 1912 | 35.0 C (95.0 F) |
| 1913 | 32.2 C (90.0 F) |
| 1914 | 32.8 C (91.0 F) |
| 1915 | 28.9 C (84.0 F) |
| 1916 | 33.3 C (91.9 F) |
| 1917 | 31.7 C (89.1 F) |
| 1918 | 31.1 C (88.0 F) |
| 1919 | 30.6 C (87.1 F) |
| 1920 | 33.9 C (93.0 F) |
| 1921 | 33.9 C (93.0 F) |
| 1922 | 31.1 C (88.0 F) |
| 1923 | 30.0 C (86.0 F) |
| 1924 | 31.1 C (88.0 F) |
| 1925 | 31.1 C (88.0 F) |
| 1926 | 33.9 C (93.0 F) |
| 1927 | 30.0 C (86.0 F) |
| 1928 | 35.6 C (96.1 F) |
| 1929 | 32.2 C (90.0 F) |
| 1930 | 32.8 C (91.0 F) |
| 1931 | 32.8 C (91.0 F) |
| 1932 | 31.7 C (89.1 F) |
| 1933 | 31.7 C (89.1 F) |
| 1934 | 33.3 C (91.9 F) |
| 1935 | 37.8 C (100.0 F) |
| 1936 | 30.0 C (86.0 F) |
| 1937 | 32.8 C (91.0 F) |
| 1938 | 31.7 C (89.1 F) |
| 1939 | 32.2 C (90.0 F) |
| 1940 | 31.1 C (88.0 F) |
| 1941 | 32.2 C (90.0 F) |
| 1942 | 32.2 C (90.0 F) |
| 1943 | 32.2 C (90.0 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 32.8 C (91.0 F) |
| 1946 | 32.8 C (91.0 F) |
| 1947 | 32.2 C (90.0 F) |
| 1948 | 14.4 C (57.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1871 | n/a |
| 1872 | -21.7 C (-7.1 F) |
| 1873 | -12.8 C (9.0 F) |
| 1874 | -25.6 C (-14.1 F) |
| 1876 | -20.6 C (-5.1 F) |
| 1877 | -25.0 C (-13.0 F) |
| 1878 | -21.1 C (-6.0 F) |
| 1879 | -24.4 C (-11.9 F) |
| 1880 | -22.8 C (-9.0 F) |
| 1881 | -19.4 C (-2.9 F) |
| 1882 | -17.2 C (1.0 F) |
| 1883 | -17.8 C (0.0 F) |
| 1903 | -22.2 C (-8.0 F) |
| 1904 | -25.6 C (-14.1 F) |
| 1905 | -27.8 C (-18.0 F) |
| 1906 | -22.2 C (-8.0 F) |
| 1907 | -23.9 C (-11.0 F) |
| 1908 | -25.6 C (-14.1 F) |
| 1909 | -22.8 C (-9.0 F) |
| 1910 | -19.4 C (-2.9 F) |
| 1911 | -25.6 C (-14.1 F) |
| 1912 | -25.6 C (-14.1 F) |
| 1913 | -22.8 C (-9.0 F) |
| 1914 | -28.3 C (-18.9 F) |
| 1915 | -22.2 C (-8.0 F) |
| 1916 | -31.7 C (-25.1 F) |
| 1917 | -26.1 C (-15.0 F) |
| 1918 | -25.6 C (-14.1 F) |
| 1919 | -23.3 C (-9.9 F) |
| 1920 | -30.6 C (-23.1 F) |
| 1921 | -25.0 C (-13.0 F) |
| 1922 | -30.6 C (-23.1 F) |
| 1923 | -25.6 C (-14.1 F) |
| 1924 | -23.9 C (-11.0 F) |
| 1925 | -28.9 C (-20.0 F) |
| 1926 | -24.4 C (-11.9 F) |
| 1927 | -21.1 C (-6.0 F) |
| 1928 | -25.0 C (-13.0 F) |
| 1929 | -22.8 C (-9.0 F) |
| 1930 | -22.2 C (-8.0 F) |
| 1931 | -21.7 C (-7.1 F) |
| 1932 | -22.8 C (-9.0 F) |
| 1933 | -25.0 C (-13.0 F) |
| 1934 | -29.4 C (-20.9 F) |
| 1935 | -26.1 C (-15.0 F) |
| 1936 | -19.4 C (-2.9 F) |
| 1937 | -21.7 C (-7.1 F) |
| 1938 | -23.3 C (-9.9 F) |
| 1939 | -17.8 C (0.0 F) |
| 1940 | -22.2 C (-8.0 F) |
| 1941 | -23.3 C (-9.9 F) |
| 1942 | -22.8 C (-9.0 F) |
| 1943 | -24.4 C (-11.9 F) |
| 1944 | -20.6 C (-5.1 F) |
| 1945 | -25.6 C (-14.1 F) |
| 1946 | -24.4 C (-11.9 F) |
| 1947 | -21.1 C (-6.0 F) |
| 1948 | -25.0 C (-13.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1871 | 37.1 mm (1.5 in) |
| 1872 | 22.9 mm (0.9 in) |
| 1873 | 64.5 mm (2.5 in) |
| 1874 | n/a |
| 1876 | 27.9 mm (1.1 in) |
| 1877 | 36.3 mm (1.4 in) |
| 1878 | 71.1 mm (2.8 in) |
| 1879 | 67.6 mm (2.7 in) |
| 1880 | 27.4 mm (1.1 in) |
| 1881 | 52.1 mm (2.1 in) |
| 1882 | 43.2 mm (1.7 in) |
| 1883 | n/a |
| 1903 | 53.8 mm (2.1 in) |
| 1904 | 70.1 mm (2.8 in) |
| 1905 | 66.0 mm (2.6 in) |
| 1906 | 42.4 mm (1.7 in) |
| 1907 | 43.9 mm (1.7 in) |
| 1908 | 82.0 mm (3.2 in) |
| 1909 | 37.1 mm (1.5 in) |
| 1910 | 52.3 mm (2.1 in) |
| 1911 | 45.2 mm (1.8 in) |
| 1912 | 69.6 mm (2.7 in) |
| 1913 | 57.7 mm (2.3 in) |
| 1914 | 45.5 mm (1.8 in) |
| 1915 | 55.9 mm (2.2 in) |
| 1916 | 47.8 mm (1.9 in) |
| 1917 | 62.2 mm (2.4 in) |
| 1918 | 43.7 mm (1.7 in) |
| 1919 | 49.0 mm (1.9 in) |
| 1920 | 40.1 mm (1.6 in) |
| 1921 | 45.7 mm (1.8 in) |
| 1922 | 52.3 mm (2.1 in) |
| 1923 | 70.6 mm (2.8 in) |
| 1924 | 53.1 mm (2.1 in) |
| 1925 | 28.7 mm (1.1 in) |
| 1926 | 64.8 mm (2.6 in) |
| 1927 | 54.6 mm (2.1 in) |
| 1928 | 75.7 mm (3.0 in) |
| 1929 | 46.2 mm (1.8 in) |
| 1930 | 42.7 mm (1.7 in) |
| 1931 | 54.6 mm (2.1 in) |
| 1932 | 58.4 mm (2.3 in) |
| 1933 | 75.4 mm (3.0 in) |
| 1934 | 58.2 mm (2.3 in) |
| 1935 | 51.8 mm (2.0 in) |
| 1936 | 76.2 mm (3.0 in) |
| 1937 | 33.8 mm (1.3 in) |
| 1938 | 61.0 mm (2.4 in) |
| 1939 | 31.8 mm (1.3 in) |
| 1940 | 37.8 mm (1.5 in) |
| 1941 | 55.9 mm (2.2 in) |
| 1942 | 124.0 mm (4.9 in) |
| 1943 | 69.9 mm (2.8 in) |
| 1944 | 34.8 mm (1.4 in) |
| 1945 | 59.9 mm (2.4 in) |
| 1946 | 73.7 mm (2.9 in) |
| 1947 | 57.7 mm (2.3 in) |
| 1948 | 29.7 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1871 | 69.4 mm (2.7 in) |
| 1872 | 38.8 mm (1.5 in) |
| 1873 | 86.6 mm (3.4 in) |
| 1874 | n/a |
| 1876 | 31.2 mm (1.2 in) |
| 1877 | 77.0 mm (3.0 in) |
| 1878 | 118.9 mm (4.7 in) |
| 1879 | 108.0 mm (4.3 in) |
| 1880 | 40.9 mm (1.6 in) |
| 1881 | 67.6 mm (2.7 in) |
| 1882 | 61.0 mm (2.4 in) |
| 1883 | n/a |
| 1903 | 84.1 mm (3.3 in) |
| 1904 | 79.8 mm (3.1 in) |
| 1905 | 99.6 mm (3.9 in) |
| 1906 | 81.6 mm (3.2 in) |
| 1907 | 84.7 mm (3.3 in) |
| 1908 | 101.3 mm (4.0 in) |
| 1909 | 84.5 mm (3.3 in) |
| 1910 | 66.3 mm (2.6 in) |
| 1911 | 54.5 mm (2.1 in) |
| 1912 | 95.5 mm (3.8 in) |
| 1913 | 133.1 mm (5.2 in) |
| 1914 | 47.8 mm (1.9 in) |
| 1915 | 83.8 mm (3.3 in) |
| 1916 | 56.2 mm (2.2 in) |
| 1917 | 129.0 mm (5.1 in) |
| 1918 | 65.5 mm (2.6 in) |
| 1919 | 61.1 mm (2.4 in) |
| 1920 | 59.7 mm (2.4 in) |
| 1921 | 54.1 mm (2.1 in) |
| 1922 | 91.9 mm (3.6 in) |
| 1923 | 110.7 mm (4.4 in) |
| 1924 | 87.9 mm (3.5 in) |
| 1925 | 51.2 mm (2.0 in) |
| 1926 | 90.9 mm (3.6 in) |
| 1927 | 72.3 mm (2.8 in) |
| 1928 | 113.8 mm (4.5 in) |
| 1929 | 105.2 mm (4.1 in) |
| 1930 | 78.3 mm (3.1 in) |
| 1931 | 75.0 mm (3.0 in) |
| 1932 | 75.2 mm (3.0 in) |
| 1933 | 126.2 mm (5.0 in) |
| 1934 | 91.7 mm (3.6 in) |
| 1935 | 93.7 mm (3.7 in) |
| 1936 | 82.3 mm (3.2 in) |
| 1937 | 66.3 mm (2.6 in) |
| 1938 | 68.6 mm (2.7 in) |
| 1939 | 59.2 mm (2.3 in) |
| 1940 | 75.8 mm (3.0 in) |
| 1941 | 66.1 mm (2.6 in) |
| 1942 | 203.5 mm (8.0 in) |
| 1943 | 85.2 mm (3.4 in) |
| 1944 | 68.1 mm (2.7 in) |
| 1945 | 90.9 mm (3.6 in) |
| 1946 | 78.0 mm (3.1 in) |
| 1947 | 85.9 mm (3.4 in) |
| 1948 | 51.3 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1871 | 20 days |
| 1872 | 9 days |
| 1873 | 15 days |
| 1874 | n/a |
| 1876 | 13 days |
| 1877 | 15 days |
| 1878 | 13 days |
| 1879 | 12 days |
| 1880 | 11 days |
| 1881 | 17 days |
| 1882 | 20 days |
| 1883 | n/a |
| 1903 | 14 days |
| 1904 | 12 days |
| 1905 | 15 days |
| 1906 | 15 days |
| 1907 | 12 days |
| 1908 | 18 days |
| 1909 | 11 days |
| 1910 | 16 days |
| 1911 | 21 days |
| 1912 | 14 days |
| 1913 | 11 days |
| 1914 | 19 days |
| 1915 | 12 days |
| 1916 | 11 days |
| 1917 | 15 days |
| 1918 | 14 days |
| 1919 | 20 days |
| 1920 | 20 days |
| 1921 | 18 days |
| 1922 | 11 days |
| 1923 | 18 days |
| 1924 | 16 days |
| 1925 | 16 days |
| 1926 | 15 days |
| 1927 | 19 days |
| 1928 | 23 days |
| 1929 | 16 days |
| 1930 | 22 days |
| 1931 | 16 days |
| 1932 | 15 days |
| 1933 | 17 days |
| 1934 | 20 days |
| 1935 | 15 days |
| 1936 | 11 days |
| 1937 | 12 days |
| 1938 | 16 days |
| 1939 | 21 days |
| 1940 | 17 days |
| 1941 | 15 days |
| 1942 | 12 days |
| 1943 | 17 days |
| 1944 | 29 days |
| 1945 | 11 days |
| 1946 | 16 days |
| 1947 | 20 days |
| 1948 | 9 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
39 years with a frostAcross 39 years with a frost, the median last spring frost at Windsor Kings College falls on 21 May and the median first autumn frost on 2 October, which leaves a median of 135 days between them.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1911 to 1946) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 21 May | n/a | 20 May | n/a | -1.3 days per decade |
| First autumn frost | 2 October | n/a | 2 October | n/a | -0.4 days per decade |
| Growing days | 135 days | n/a | 136 days | n/a | +1.0 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
46 years, 1879 to 1947A day with at least 54.0 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 103.9 mm (4.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 54.0 mm (2.1 in) | |
| 5 years | 68.2 mm (2.7 in) | |
| 10 years | 77.3 mm (3.0 in) | |
| 25 years | 88.3 mm (3.5 in) | |
| 50 years | 96.2 mm (3.8 in) | Longer than the 46 years of record |
| 100 years | 103.9 mm (4.1 in) | Longer than the 46 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, 46 years of values from 1879 to 1947.
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: 124.0 mm (4.9 in) in 1942; 82.0 mm (3.2 in) in 1908; 76.2 mm (3.0 in) in 1936.
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).