Belleville Par Lab Threshold Days by Year (CA006150717)
18 fixed thresholds counted per year at Belleville Par Lab (CA006150717): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Belleville Par Lab Thresholds
- Belleville Par Lab: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1949 with 41.
- Belleville Par Lab: days with a maximum temperature at or below 0 C (32 F) in 26 years, most in 1940 with 77.
- Belleville Par Lab: nights with a minimum temperature at or below 0 C (32 F) in 26 years, most in 1947 with 165.
- Belleville Par Lab: nights with a minimum temperature at or below -10 C (14 F) in 26 years, most in 1940 with 73.
- 18 fixed thresholds have at least one qualifying day at Belleville Par Lab.
Days at or above 30 C (86 F)
26 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1930 | 10 | 23.4 |
| 1931 | 28 | 23.4 |
| 1932 | 10 | 23.4 |
| 1933 | 29 | 23.4 |
| 1934 | 23 | 23.4 |
| 1935 | 22 | 23.4 |
| 1936 | 24 | 23.4 |
| 1937 | 36 | 23.4 |
| 1938 | 21 | 23.4 |
| 1939 | 31 | 23.4 |
| 1940 | 16 | 19.9 |
| 1941 | 21 | 19.9 |
| 1942 | 14 | 19.9 |
| 1943 | 13 | 19.9 |
| 1944 | 22 | 19.9 |
| 1945 | 13 | 19.9 |
| 1946 | 15 | 19.9 |
| 1947 | 25 | 19.9 |
| 1948 | 19 | 19.9 |
| 1949 | 41 | 19.9 |
| 1950 | 2 | 11.7 |
| 1951 | 13 | 11.7 |
| 1952 | 28 | 11.7 |
| 1953 | 20 | 11.7 |
| 1954 | 4 | 11.7 |
| 1958 | 3 | 11.7 |
| Year | First date | Last date |
|---|---|---|
| 1930 | 1930-06-15 | 1930-09-02 |
| 1931 | 1931-06-20 | 1931-09-13 |
| 1932 | 1932-06-05 | 1932-09-01 |
| 1933 | 1933-06-06 | 1933-08-25 |
| 1934 | 1934-06-02 | 1934-09-04 |
| 1935 | 1935-07-05 | 1935-08-21 |
| 1936 | 1936-06-09 | 1936-09-23 |
| 1937 | 1937-06-01 | 1937-09-03 |
| 1938 | 1938-06-16 | 1938-08-21 |
| 1939 | 1939-06-09 | 1939-09-16 |
| 1940 | 1940-06-04 | 1940-08-18 |
| 1941 | 1941-06-18 | 1941-08-30 |
| 1942 | 1942-06-10 | 1942-09-19 |
| 1943 | 1943-06-22 | 1943-09-01 |
| 1944 | 1944-06-27 | 1944-08-16 |
| 1945 | 1945-06-23 | 1945-09-08 |
| 1946 | 1946-06-24 | 1946-09-19 |
| 1947 | 1947-06-11 | 1947-09-11 |
| 1948 | 1948-06-29 | 1948-09-13 |
| 1949 | 1949-06-12 | 1949-08-27 |
| 1950 | 1950-06-25 | 1950-08-17 |
| 1951 | 1951-06-18 | 1951-09-13 |
| 1952 | 1952-06-15 | 1952-09-13 |
| 1953 | 1953-06-20 | 1953-09-04 |
| 1954 | 1954-06-21 | 1954-07-30 |
| 1958 | 1958-07-26 | 1958-08-03 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 26 | 41 | 1949 | 3 |
| 35 C (95 F): Days | 7 | 5 | 1936 | 2 |
| 40 C (104 F): Days | 1 | 1 | 1936 | 1 |
| 90 F (32.2 C): Days | 22 | 14 | 1953 | 14 |
| 100 F (37.8 C): Days | 2 | 3 | 1936 | 3 |
| 0 C (32 F): Ice days (max | 26 | 77 | 1940 | 67 |
| 0 C (32 F): Frost days (min | 26 | 165 | 1947 | 158 |
| -10 C (14 F): Days with min | 26 | 73 | 1940 | 55 |
| -20 C (-4 F): Days with min | 25 | 29 | 1934 | 9 |
| -30 C (-22 F): Days with min | 13 | 6 | 1934 | 1 |
| 20 C (68 F): Tropical nights (min | 26 | 17 | 1931 | 6 |
| 25 C (77 F): Days with min | 2 | 1 | 1936 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 25 | 44 | 1942 | 28 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 25 | 9 | 1943 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 8 | 2 | 1943 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1941 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 25 | 10 | 1941 | 6 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 14 | 3 | 1942 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.
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).