West Branch Threshold Days by Year (USC00049540)

16 fixed thresholds counted per year at West Branch (USC00049540): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for West Branch Thresholds

West Branch: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1910 with 97.
West Branch: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 1910 with 62.
West Branch: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 1922 with 152.
West Branch: days with a maximum temperature at or above 35 C (95 F) in 32 years, most in 1910 with 27.
16 fixed thresholds have at least one qualifying day at West Branch.

Days at or above 30 C (86 F)

35 years with a qualifying day

Days per year at West Branch with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 97 in 1910.

Days at or above 30 C (86 F) per year at West Branch
Year	Days	Decade average
1908	76	76.5
1909	77	76.5
1910	97	56.6
1911	46	56.6
1912	49	56.6
1913	53	56.6
1914	59	56.6
1915	61	56.6
1916	45	56.6
1917	70	56.6
1918	36	56.6
1919	50	56.6
1920	39	43.2
1921	35	43.2
1922	45	43.2
1923	30	43.2
1924	54	43.2
1925	34	43.2
1926	54	43.2
1927	35	43.2
1928	54	43.2
1929	52	43.2
1930	32	54.2
1931	60	54.2
1933	64	54.2
1934	63	54.2
1935	46	54.2
1936	61	54.2
1937	52	54.2
1938	51	54.2
1939	59	54.2
1940	49	35.8
1942	33	35.8
1943	24	35.8
1947	37	35.8

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

First to last qualifying date each year at West Branch
Year	First date	Last date
1908	1908-06-24	1908-10-07
1909	1909-05-30	1909-10-12
1910	1910-04-22	1910-11-01
1911	1911-06-09	1911-10-17
1912	1912-05-13	1912-09-23
1913	1913-05-25	1913-10-22
1914	1914-03-17	1914-10-04
1915	1915-06-05	1915-10-08
1916	1916-06-06	1916-09-29
1917	1917-06-08	1917-10-11
1918	1918-06-07	1918-09-18
1919	1919-05-19	1919-09-24
1920	1920-05-18	1920-09-03
1921	1921-06-09	1921-09-29
1922	1922-05-30	1922-09-19
1923	1923-06-30	1923-09-16
1924	1924-05-15	1924-09-18
1925	1925-06-18	1925-08-25
1926	1926-04-25	1926-09-04
1927	1927-05-13	1927-08-20
1928	1928-05-24	1928-09-23
1929	1929-05-21	1929-10-21
1930	1930-06-09	1930-10-28
1931	1931-06-25	1931-10-02
1933	1933-05-27	1933-10-16
1934	1934-05-10	1934-10-11
1935	1935-05-21	1935-09-30
1936	1936-05-09	1936-10-09
1937	1937-06-02	1937-09-25
1938	1938-05-13	1938-09-16
1939	1939-05-28	1939-09-23
1940	1940-05-18	1940-10-13
1942	1942-06-28	1942-09-22
1943	1943-05-23	1943-09-30
1947	1947-04-15	1947-09-24

Every Fixed Threshold

Fixed thresholds at West Branch
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	35	97	1910	37
35 C (95 F): Days	32	27	1910	4
40 C (104 F): Days	4	4	1908	1
90 F (32.2 C): Days	35	62	1910	17
100 F (37.8 C): Days	13	11	1908	4
0 C (32 F): Ice days (max	16	8	1937	1
0 C (32 F): Frost days (min	35	152	1922	121
-10 C (14 F): Days with min	25	10	1937	1
10 mm (0.39 in): Days with 10 mm or more rain	32	61	1937	56
25 mm (0.98 in): Days with 25 mm or more rain	32	35	1916	32
50 mm (1.97 in): Days with 50 mm or more rain	32	22	1940	8
100 mm (3.94 in): Days with 100 mm or more rain	26	5	1929	2
200 mm (7.87 in): Days with 200 mm or more rain	2	2	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	22	1916	10
25 cm (9.8 in): Days with 25 cm or more snowfall	8	6	1913	3
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1916	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

Data for West Branch 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).

West Branch Threshold Days by Year (USC00049540)

Key Facts for West Branch Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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