Windsor Riverside Threshold Days by Year (CA006139520)
16 fixed thresholds counted per year at Windsor Riverside (CA006139520): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Windsor Riverside Thresholds
- Windsor Riverside: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1909 with 40.
- Windsor Riverside: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1900 with 12.
- Windsor Riverside: days with 10 cm (3.9 in) or more of snowfall in 43 years, most in 1898 with 4.
- Windsor Riverside: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 1928 with 50.
- 16 fixed thresholds have at least one qualifying day at Windsor Riverside.
Days at or above 30 C (86 F)
24 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1897 | 23 | 36.3 |
| 1898 | 49 | 36.3 |
| 1899 | 37 | 36.3 |
| 1900 | 23 | 11.6 |
| 1901 | 20 | 11.6 |
| 1902 | 7 | 11.6 |
| 1903 | 7 | 11.6 |
| 1904 | 7 | 11.6 |
| 1905 | 5 | 11.6 |
| 1906 | 18 | 11.6 |
| 1907 | 5 | 11.6 |
| 1908 | 15 | 11.6 |
| 1909 | 9 | 11.6 |
| 1910 | 14 | 19.9 |
| 1911 | 27 | 19.9 |
| 1912 | 15 | 19.9 |
| 1913 | 24 | 19.9 |
| 1914 | 24 | 19.9 |
| 1915 | 3 | 19.9 |
| 1916 | 32 | 19.9 |
| 1925 | 41 | 33.8 |
| 1926 | 25 | 33.8 |
| 1927 | 19 | 33.8 |
| 1928 | 50 | 33.8 |
| Year | First date | Last date |
|---|---|---|
| 1897 | 1897-06-15 | 1897-10-02 |
| 1898 | 1898-06-04 | 1898-09-04 |
| 1899 | 1899-05-01 | 1899-09-18 |
| 1900 | 1900-06-27 | 1900-09-12 |
| 1901 | 1901-06-25 | 1901-07-29 |
| 1902 | 1902-07-06 | 1902-07-31 |
| 1903 | 1903-07-04 | 1903-07-29 |
| 1904 | 1904-06-26 | 1904-09-02 |
| 1905 | 1905-06-19 | 1905-08-13 |
| 1906 | 1906-06-08 | 1906-08-27 |
| 1907 | 1907-06-23 | 1907-08-13 |
| 1908 | 1908-06-23 | 1908-09-01 |
| 1909 | 1909-06-29 | 1909-08-27 |
| 1910 | 1910-06-19 | 1910-08-25 |
| 1911 | 1911-05-20 | 1911-09-03 |
| 1912 | 1912-06-30 | 1912-09-11 |
| 1913 | 1913-06-16 | 1913-09-04 |
| 1914 | 1914-05-27 | 1914-09-23 |
| 1915 | 1915-07-13 | 1915-07-18 |
| 1916 | 1916-07-03 | 1916-09-08 |
| 1925 | 1925-04-23 | 1925-09-18 |
| 1926 | 1926-05-08 | 1926-08-29 |
| 1927 | 1927-05-09 | 1927-09-17 |
| 1928 | 1928-05-04 | 1928-10-11 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 24 | 50 | 1928 | 50 |
| 35 C (95 F): Days | 10 | 13 | 1898 | 4 |
| 90 F (32.2 C): Days | 20 | 29 | 1898 | 26 |
| 100 F (37.8 C): Days | 3 | 1 | 1898 | 1 |
| 0 C (32 F): Ice days (max | 24 | 80 | 1904 | 34 |
| 0 C (32 F): Frost days (min | 24 | 154 | 1926 | 127 |
| -10 C (14 F): Days with min | 24 | 56 | 1912 | 26 |
| -20 C (-4 F): Days with min | 10 | 8 | 1899 | 2 |
| 20 C (68 F): Tropical nights (min | 24 | 33 | 1916 | 15 |
| 25 C (77 F): Days with min | 3 | 2 | 1911 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 44 | 40 | 1909 | 24 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 44 | 12 | 1900 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 12 | 2 | 1903 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1925 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 43 | 4 | 1898 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 12 | 3 | 1900 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.
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). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).