Waterbury City Hall Threshold Days by Year (USC00068911)
18 fixed thresholds counted per year at Waterbury City Hall (USC00068911): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Waterbury City Hall Thresholds
- Waterbury City Hall: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1942 with 48.
- Waterbury City Hall: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1951 with 17.
- Waterbury City Hall: nights with a minimum temperature at or below 0 C (32 F) in 25 years, most in 1941 with 153.
- Waterbury City Hall: nights with a minimum temperature at or below -10 C (14 F) in 25 years, most in 1934 with 42.
- 18 fixed thresholds have at least one qualifying day at Waterbury City Hall.
Days at or above 30 C (86 F)
23 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1926 | 37 | 32 |
| 1927 | 25 | 32 |
| 1928 | 34 | 32 |
| 1930 | 54 | 55.1 |
| 1931 | 51 | 55.1 |
| 1932 | 61 | 55.1 |
| 1933 | 53 | 55.1 |
| 1934 | 54 | 55.1 |
| 1935 | 56 | 55.1 |
| 1936 | 62 | 55.1 |
| 1937 | 57 | 55.1 |
| 1938 | 49 | 55.1 |
| 1939 | 54 | 55.1 |
| 1940 | 36 | 41.2 |
| 1941 | 48 | 41.2 |
| 1942 | 35 | 41.2 |
| 1945 | 40 | 41.2 |
| 1946 | 40 | 41.2 |
| 1947 | 48 | 41.2 |
| 1951 | 29 | 39 |
| 1952 | 47 | 39 |
| 1953 | 52 | 39 |
| 1954 | 28 | 39 |
| Year | First date | Last date |
|---|---|---|
| 1926 | 1926-06-02 | 1926-09-25 |
| 1927 | 1927-04-20 | 1927-10-02 |
| 1928 | 1928-06-14 | 1928-10-12 |
| 1930 | 1930-05-02 | 1930-10-13 |
| 1931 | 1931-05-28 | 1931-10-03 |
| 1932 | 1932-05-16 | 1932-10-09 |
| 1933 | 1933-05-20 | 1933-09-27 |
| 1934 | 1934-05-05 | 1934-09-26 |
| 1935 | 1935-04-27 | 1935-09-12 |
| 1936 | 1936-05-01 | 1936-09-12 |
| 1937 | 1937-05-30 | 1937-09-24 |
| 1938 | 1938-04-20 | 1938-10-17 |
| 1939 | 1939-04-25 | 1939-10-10 |
| 1940 | 1940-06-03 | 1940-09-21 |
| 1941 | 1941-04-15 | 1941-10-06 |
| 1942 | 1942-04-30 | 1942-09-17 |
| 1945 | 1945-03-28 | 1945-09-29 |
| 1946 | 1946-05-26 | 1946-10-07 |
| 1947 | 1947-05-13 | 1947-10-17 |
| 1951 | 1951-06-02 | 1951-09-13 |
| 1952 | 1952-06-09 | 1952-09-14 |
| 1953 | 1953-05-12 | 1953-09-06 |
| 1954 | 1954-06-12 | 1954-10-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 23 | 62 | 1936 | 28 |
| 35 C (95 F): Days | 21 | 14 | 1933 | 4 |
| 40 C (104 F): Days | 1 | 1 | 1926 | 1 |
| 90 F (32.2 C): Days | 23 | 31 | 1933 | 11 |
| 100 F (37.8 C): Days | 7 | 3 | 1926 | 2 |
| 0 C (32 F): Ice days (max | 23 | 33 | 1945 | 18 |
| 0 C (32 F): Frost days (min | 25 | 153 | 1941 | 96 |
| -10 C (14 F): Days with min | 25 | 42 | 1934 | 10 |
| -20 C (-4 F): Days with min | 9 | 7 | 1942 | 1 |
| -30 C (-22 F): Days with min | 1 | 0 | n/a | 1 |
| 20 C (68 F): Tropical nights (min | 25 | 37 | 1953 | 22 |
| 25 C (77 F): Days with min | 3 | 4 | 1952 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 28 | 48 | 1942 | 30 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 28 | 17 | 1951 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 25 | 5 | 1938 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1934 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 24 | 10 | 1945 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 8 | 2 | 1926 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.
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 (2025-12-31).