Fredericton Unb Threshold Days by Year (CA008101700)

17 fixed thresholds counted per year at Fredericton Unb (CA008101700): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fredericton Unb Thresholds

Fredericton Unb: days with a maximum temperature at or below 0 C (32 F) in 74 years, most in 1875 with 102.
Fredericton Unb: nights with a minimum temperature at or below 0 C (32 F) in 74 years, most in 1911 with 202.
Fredericton Unb: nights with a minimum temperature at or below -10 C (14 F) in 74 years, most in 1875 with 109.
Fredericton Unb: nights with a minimum temperature at or below -20 C (-4 F) in 74 years, most in 1883 with 49.
17 fixed thresholds have at least one qualifying day at Fredericton Unb.

Days at or above 30 C (86 F)

72 years with a qualifying day

Days per year at Fredericton Unb with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 1937.

Days at or above 30 C (86 F) per year at Fredericton Unb
Year	Days	Decade average
1872	4	9.8
1875	5	9.8
1876	20	9.8
1877	8	9.8
1878	10	9.8
1879	12	9.8
1880	14	7.3
1881	12	7.3
1882	9	7.3
1883	4	7.3
1884	9	7.3
1885	6	7.3
1886	6	7.3
1887	6	7.3
1888	3	7.3
1889	4	7.3
1890	3	4.5
1891	1	4.5
1892	5	4.5
1893	6	4.5
1896	8	4.5
1897	7	4.5
1898	3	4.5
1899	3	4.5
1900	6	8.7
1901	11	8.7
1904	4	8.7
1905	11	8.7
1907	7	8.7
1908	14	8.7
1909	8	8.7
1910	4	7.6
1911	14	7.6
1912	11	7.6
1913	4	7.6
1914	9	7.6
1915	1	7.6
1916	9	7.6
1917	5	7.6
1918	8	7.6
1919	11	7.6
1920	10	8.1
1921	22	8.1
1922	5	8.1
1923	5	8.1
1924	11	8.1
1925	8	8.1
1926	4	8.1
1927	2	8.1
1928	6	8.1
1929	8	8.1
1930	5	9
1931	8	9
1932	5	9
1933	3	9
1934	2	9
1935	15	9
1937	23	9
1938	7	9
1939	13	9
1940	8	14
1941	8	14
1942	9	14
1943	9	14
1944	19	14
1945	18	14
1946	14	14
1947	23	14
1948	11	14
1949	21	14
1950	5	8
1951	11	8

For each year, a bar from the first to the last day at Fredericton Unb meeting 30 C (86 F).

First to last qualifying date each year at Fredericton Unb
Year	First date	Last date
1872	1872-06-30	1872-08-10
1875	1875-05-25	1875-08-30
1876	1876-06-02	1876-08-15
1877	1877-05-29	1877-08-24
1878	1878-06-20	1878-07-10
1879	1879-05-31	1879-08-03
1880	1880-05-27	1880-09-06
1881	1881-05-24	1881-08-31
1882	1882-06-24	1882-08-07
1883	1883-06-27	1883-08-23
1884	1884-06-08	1884-08-21
1885	1885-06-16	1885-07-25
1886	1886-07-02	1886-09-08
1887	1887-06-29	1887-07-28
1888	1888-06-06	1888-07-05
1889	1889-05-10	1889-09-02
1890	1890-07-29	1890-08-05
1891	1891-06-16	1891-06-16
1892	1892-06-02	1892-07-25
1893	1893-06-14	1893-08-11
1896	1896-07-02	1896-09-12
1897	1897-07-06	1897-09-10
1898	1898-07-03	1898-07-30
1899	1899-06-14	1899-07-04
1900	1900-06-21	1900-09-03
1901	1901-05-22	1901-07-18
1904	1904-07-20	1904-08-01
1905	1905-06-16	1905-08-12
1907	1907-06-18	1907-07-20
1908	1908-06-07	1908-07-31
1909	1909-06-25	1909-08-08
1910	1910-07-06	1910-07-11
1911	1911-05-21	1911-08-10
1912	1912-06-24	1912-07-15
1913	1913-07-02	1913-08-16
1914	1914-05-26	1914-09-23
1915	1915-08-01	1915-08-01
1916	1916-07-12	1916-08-21
1917	1917-07-17	1917-08-02
1918	1918-05-18	1918-08-24
1919	1919-06-03	1919-07-24
1920	1920-07-11	1920-09-24
1921	1921-05-30	1921-09-03
1922	1922-06-05	1922-08-16
1923	1923-06-19	1923-08-03
1924	1924-06-24	1924-08-06
1925	1925-06-04	1925-08-25
1926	1926-07-21	1926-07-29
1927	1927-07-12	1927-07-26
1928	1928-07-04	1928-08-17
1929	1929-05-28	1929-07-29
1930	1930-06-05	1930-06-17
1931	1931-05-21	1931-09-14
1932	1932-05-17	1932-08-17
1933	1933-08-17	1933-08-23
1934	1934-06-06	1934-07-07
1935	1935-07-04	1935-08-21
1937	1937-05-30	1937-09-03
1938	1938-06-21	1938-08-16
1939	1939-06-20	1939-09-16
1940	1940-05-27	1940-08-18
1941	1941-06-19	1941-07-25
1942	1942-06-11	1942-09-18
1943	1943-06-24	1943-08-02
1944	1944-06-27	1944-08-16
1945	1945-06-15	1945-09-08
1946	1946-06-24	1946-09-20
1947	1947-06-23	1947-09-12
1948	1948-06-30	1948-09-07
1949	1949-06-03	1949-08-28
1950	1950-05-25	1950-08-09
1951	1951-05-20	1951-09-13

Every Fixed Threshold

Fixed thresholds at Fredericton Unb
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	72	23	1937	11
35 C (95 F): Days	9	4	1921	1
90 F (32.2 C): Days	53	14	1944	14
100 F (37.8 C): Days	1	2	1935	2
0 C (32 F): Ice days (max	74	102	1875	62
0 C (32 F): Frost days (min	74	202	1911	166
-10 C (14 F): Days with min	74	109	1875	69
-20 C (-4 F): Days with min	74	49	1883	18
-30 C (-22 F): Days with min	52	13	1934	2
20 C (68 F): Tropical nights (min	19	5	1947	2
10 mm (0.39 in): Days with 10 mm or more rain	74	55	1872	44
25 mm (0.98 in): Days with 25 mm or more rain	74	18	1912	8
50 mm (1.97 in): Days with 50 mm or more rain	48	5	1909	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1912	1
10 cm (3.9 in): Days with 10 cm or more snowfall	74	17	1872	9
25 cm (9.8 in): Days with 25 cm or more snowfall	36	3	1893	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1905	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1872.

Download the Data

Data for Fredericton Unb threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Fredericton Unb Threshold Days by Year (CA008101700)

Key Facts for Fredericton Unb Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related