Whitehead Threshold Days by Year (CA008206300)

13 fixed thresholds counted per year at Whitehead (CA008206300): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Whitehead Thresholds

Whitehead: days with 10 cm (3.9 in) or more of snowfall in 53 years, most in 1893 with 11.
Whitehead: nights with a minimum temperature at or below 0 C (32 F) in 40 years, most in 1933 with 189.
Whitehead: nights with a minimum temperature at or below -10 C (14 F) in 40 years, most in 1923 with 51.
Whitehead: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 1918 with 96.
13 fixed thresholds have at least one qualifying day at Whitehead.

Nights at or below 0 C (32 F)

40 years with a qualifying day

Days per year at Whitehead with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 189 in 1933.

Nights at or below 0 C (32 F) per year at Whitehead
Year	Days	Decade average
1914	187	158.8
1915	143	158.8
1916	142	158.8
1918	166	158.8
1919	156	158.8
1920	152	156.3
1922	143	156.3
1923	158	156.3
1924	151	156.3
1927	146	156.3
1928	176	156.3
1929	168	156.3
1930	154	152.9
1931	139	152.9
1932	152	152.9
1933	189	152.9
1934	156	152.9
1935	144	152.9
1936	144	152.9
1937	145	152.9
1938	145	152.9
1939	161	152.9
1940	158	153.8
1941	156	153.8
1942	155	153.8
1943	156	153.8
1944	140	153.8
1945	141	153.8
1946	158	153.8
1947	166	153.8
1950	153	147.4
1951	130	147.4
1952	165	147.4
1953	133	147.4
1954	165	147.4
1955	171	147.4
1956	154	147.4
1957	111	147.4
1958	141	147.4
1959	151	147.4

For each year, a bar from the first to the last day at Whitehead meeting 0 C (32 F).

First to last qualifying date each year at Whitehead
Year	First date	Last date
1914	1914-01-01	1914-12-31
1915	1915-01-01	1915-12-31
1916	1916-01-01	1916-12-31
1918	1918-01-01	1918-12-31
1919	1919-01-01	1919-12-31
1920	1920-01-01	1920-12-31
1922	1922-01-01	1922-11-30
1923	1923-01-01	1923-12-31
1924	1924-01-01	1924-12-31
1927	1927-01-01	1927-12-31
1928	1928-01-02	1928-12-31
1929	1929-01-01	1929-12-31
1930	1930-01-01	1930-12-31
1931	1931-01-01	1931-12-31
1932	1932-01-01	1932-12-30
1933	1933-01-01	1933-12-31
1934	1934-01-01	1934-12-31
1935	1935-01-01	1935-12-31
1936	1936-01-01	1936-12-31
1937	1937-01-01	1937-12-31
1938	1938-01-01	1938-12-31
1939	1939-01-01	1939-12-31
1940	1940-01-01	1940-12-28
1941	1941-01-01	1941-12-31
1942	1942-01-01	1942-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-31
1945	1945-01-01	1945-12-31
1946	1946-01-03	1946-12-31
1947	1947-01-01	1947-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-02-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31

Every Fixed Threshold

Fixed thresholds at Whitehead
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	1	1	1931	1
0 C (32 F): Ice days (max	39	96	1918	53
0 C (32 F): Frost days (min	40	189	1933	151
-10 C (14 F): Days with min	40	51	1923	31
-20 C (-4 F): Days with min	29	13	1923	3
20 C (68 F): Tropical nights (min	5	2	1936	2
10 mm (0.39 in): Days with 10 mm or more rain	37	52	1890	47
25 mm (0.98 in): Days with 25 mm or more rain	37	16	1901	16
50 mm (1.97 in): Days with 50 mm or more rain	21	3	1892	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1916	1
10 cm (3.9 in): Days with 10 cm or more snowfall	53	11	1893	3
25 cm (9.8 in): Days with 25 cm or more snowfall	18	5	1885	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1894	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

Download the Data

Data for Whitehead 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).

Whitehead Threshold Days by Year (CA008206300)

Key Facts for Whitehead Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

Related