Spier Falls Threshold Days by Year (USC00308104)

20 fixed thresholds counted per year at Spier Falls (USC00308104): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Spier Falls Thresholds

Spier Falls: nights with a minimum temperature at or below 0 C (32 F) in 64 years, most in 1912 with 182.
Spier Falls: nights with a minimum temperature at or below -10 C (14 F) in 64 years, most in 1904 with 79.
Spier Falls: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1972 with 48.
Spier Falls: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1971 with 16.
20 fixed thresholds have at least one qualifying day at Spier Falls.

Days at or above 30 C (86 F)

62 years with a qualifying day

Days per year at Spier Falls with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 51 in 1955.

Days at or above 30 C (86 F) per year at Spier Falls
Year	Days	Decade average
1903	13	16.2
1904	10	16.2
1905	16	16.2
1907	19	16.2
1908	28	16.2
1909	11	16.2
1912	26	32.4
1913	39	32.4
1917	27	32.4
1918	27	32.4
1919	43	32.4
1920	24	28.8
1921	36	28.8
1922	21	28.8
1923	40	28.8
1924	29	28.8
1925	32	28.8
1926	23	28.8
1927	20	28.8
1928	25	28.8
1929	38	28.8
1930	37	30.8
1931	33	30.8
1932	23	30.8
1933	32	30.8
1934	30	30.8
1935	19	30.8
1936	27	30.8
1937	37	30.8
1938	31	30.8
1939	39	30.8
1940	19	28.8
1941	36	28.8
1942	15	28.8
1943	29	28.8
1944	41	28.8
1945	22	28.8
1946	20	28.8
1947	29	28.8
1949	48	28.8
1950	11	25.9
1951	18	25.9
1952	36	25.9
1953	35	25.9
1954	16	25.9
1955	51	25.9
1956	14	25.9
1957	19	25.9
1958	14	25.9
1959	45	25.9
1960	11	17.4
1961	21	17.4
1962	12	17.4
1963	19	17.4
1964	22	17.4
1965	19	17.4
1966	24	17.4
1967	13	17.4
1969	16	17.4
1970	24	16.3
1971	15	16.3
1972	10	16.3

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

First to last qualifying date each year at Spier Falls
Year	First date	Last date
1903	1903-04-30	1903-09-15
1904	1904-05-08	1904-08-01
1905	1905-06-15	1905-09-30
1907	1907-06-16	1907-09-16
1908	1908-05-28	1908-09-01
1909	1909-07-12	1909-08-25
1912	1912-06-23	1912-08-27
1913	1913-04-25	1913-09-03
1917	1917-06-23	1917-09-03
1918	1918-05-27	1918-08-26
1919	1919-05-29	1919-09-09
1920	1920-06-02	1920-09-28
1921	1921-05-21	1921-09-08
1922	1922-05-24	1922-08-19
1923	1923-05-26	1923-09-06
1924	1924-06-15	1924-09-01
1925	1925-06-03	1925-09-12
1926	1926-06-24	1926-08-11
1927	1927-06-10	1927-10-02
1928	1928-05-06	1928-08-21
1929	1929-04-08	1929-09-07
1930	1930-05-05	1930-09-17
1931	1931-05-28	1931-09-14
1932	1932-05-16	1932-09-02
1933	1933-06-03	1933-08-27
1934	1934-05-22	1934-08-10
1935	1935-06-29	1935-08-19
1936	1936-05-08	1936-08-20
1937	1937-05-31	1937-09-04
1938	1938-06-07	1938-08-21
1939	1939-05-07	1939-09-17
1940	1940-06-04	1940-08-17
1941	1941-04-20	1941-09-16
1942	1942-05-30	1942-09-16
1943	1943-06-03	1943-09-06
1944	1944-05-04	1944-09-02
1945	1945-06-14	1945-09-09
1946	1946-05-25	1946-09-20
1947	1947-06-11	1947-09-12
1949	1949-05-05	1949-10-10
1950	1950-06-07	1950-07-18
1951	1951-05-16	1951-08-31
1952	1952-06-15	1952-09-14
1953	1953-05-11	1953-09-05
1954	1954-06-13	1954-08-26
1955	1955-05-04	1955-08-23
1956	1956-06-12	1956-08-18
1957	1957-06-15	1957-08-15
1958	1958-07-01	1958-09-01
1959	1959-05-20	1959-09-10
1960	1960-06-28	1960-09-08
1961	1961-05-15	1961-09-25
1962	1962-04-28	1962-09-01
1963	1963-06-25	1963-10-08
1964	1964-05-24	1964-08-31
1965	1965-05-11	1965-09-23
1966	1966-06-06	1966-09-03
1967	1967-06-04	1967-08-19
1969	1969-06-13	1969-09-02
1970	1970-06-02	1970-09-23
1971	1971-05-20	1971-09-06
1972	1972-07-03	1972-08-26

Every Fixed Threshold

Fixed thresholds at Spier Falls
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	62	51	1955	10
35 C (95 F): Days	24	9	1919	2
40 C (104 F): Days	1	1	1919	1
90 F (32.2 C): Days	58	25	1949	1
100 F (37.8 C): Days	3	2	1917	2
0 C (32 F): Ice days (max	62	83	1904	51
0 C (32 F): Frost days (min	64	182	1912	172
-10 C (14 F): Days with min	64	79	1904	64
-20 C (-4 F): Days with min	61	33	1963	13
-30 C (-22 F): Days with min	26	8	1918	5
20 C (68 F): Tropical nights (min	62	18	1955	5
25 C (77 F): Days with min	3	3	1931	3
10 mm (0.39 in): Days with 10 mm or more rain	64	48	1972	38
25 mm (0.98 in): Days with 25 mm or more rain	64	16	1971	9
50 mm (1.97 in): Days with 50 mm or more rain	37	4	1935	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1919	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1919	1
10 cm (3.9 in): Days with 10 cm or more snowfall	17	8	1956	5
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1925	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

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Data for Spier Falls 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).

Spier Falls Threshold Days by Year (USC00308104)

Key Facts for Spier Falls Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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