Lenox Threshold Days by Year (USC00134746)

21 fixed thresholds counted per year at Lenox (USC00134746): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lenox Thresholds

Lenox: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1915 with 37.
Lenox: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1919 with 17.
Lenox: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 1936 with 106.
Lenox: days with a maximum temperature at or above 90 F (32.2 C) in 40 years, most in 1934 with 89.
21 fixed thresholds have at least one qualifying day at Lenox.

Days at or above 30 C (86 F)

40 years with a qualifying day

Days per year at Lenox with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 106 in 1936.

Days at or above 30 C (86 F) per year at Lenox
Year	Days	Decade average
1899	43	43
1900	52	37.5
1901	60	37.5
1902	13	37.5
1903	26	37.5
1904	13	37.5
1905	34	37.5
1906	47	37.5
1907	40	37.5
1908	40	37.5
1909	50	37.5
1910	56	60.7
1911	86	60.7
1912	49	60.7
1913	77	60.7
1914	80	60.7
1915	9	60.7
1916	57	60.7
1917	39	60.7
1918	79	60.7
1919	75	60.7
1920	58	64.9
1921	87	64.9
1922	68	64.9
1923	63	64.9
1924	34	64.9
1925	76	64.9
1926	67	64.9
1927	73	64.9
1928	57	64.9
1929	66	64.9
1930	84	88.9
1931	94	88.9
1932	72	88.9
1933	92	88.9
1934	102	88.9
1935	73	88.9
1936	106	88.9
1937	95	88.9
1938	82	88.9

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

First to last qualifying date each year at Lenox
Year	First date	Last date
1899	1899-05-26	1899-10-23
1900	1900-05-13	1900-09-10
1901	1901-06-14	1901-09-07
1902	1902-04-21	1902-08-13
1903	1903-06-29	1903-08-26
1904	1904-06-20	1904-09-28
1905	1905-06-03	1905-09-24
1906	1906-04-24	1906-09-16
1907	1907-03-21	1907-09-18
1908	1908-05-20	1908-09-22
1909	1909-05-05	1909-09-12
1910	1910-04-28	1910-09-18
1911	1911-05-09	1911-09-28
1912	1912-05-23	1912-09-09
1913	1913-05-29	1913-09-08
1914	1914-05-10	1914-10-01
1915	1915-05-12	1915-09-13
1916	1916-05-06	1916-09-10
1917	1917-04-19	1917-09-16
1918	1918-05-04	1918-08-29
1919	1919-05-28	1919-10-02
1920	1920-05-22	1920-10-10
1921	1921-05-20	1921-10-16
1922	1922-06-07	1922-10-06
1923	1923-05-31	1923-09-05
1924	1924-05-05	1924-10-19
1925	1925-04-21	1925-09-19
1926	1926-04-29	1926-09-21
1927	1927-05-17	1927-10-26
1928	1928-05-02	1928-10-11
1929	1929-04-04	1929-09-27
1930	1930-04-10	1930-10-10
1931	1931-04-08	1931-10-10
1932	1932-05-13	1932-10-02
1933	1933-05-16	1933-09-25
1934	1934-05-05	1934-10-12
1935	1935-06-10	1935-10-16
1936	1936-04-20	1936-09-22
1937	1937-05-20	1937-10-02
1938	1938-03-21	1938-10-16

Every Fixed Threshold

Fixed thresholds at Lenox
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	40	106	1936	82
35 C (95 F): Days	32	64	1934	29
40 C (104 F): Days	12	30	1936	3
45 C (113 F): Days	2	1	1934	1
90 F (32.2 C): Days	40	89	1934	48
100 F (37.8 C): Days	18	47	1936	10
110 F (43.3 C): Days	3	8	1934	6
0 C (32 F): Ice days (max	40	63	1937	30
0 C (32 F): Frost days (min	40	161	1907	128
-10 C (14 F): Days with min	40	65	1929	32
-20 C (-4 F): Days with min	39	30	1936	1
-30 C (-22 F): Days with min	10	6	1905	1
20 C (68 F): Tropical nights (min	40	52	1936	35
25 C (77 F): Days with min	9	8	1934	8
10 mm (0.39 in): Days with 10 mm or more rain	44	37	1915	24
25 mm (0.98 in): Days with 25 mm or more rain	44	17	1919	5
50 mm (1.97 in): Days with 50 mm or more rain	31	5	1909	1
100 mm (3.94 in): Days with 100 mm or more rain	5	2	1932	2
10 cm (3.9 in): Days with 10 cm or more snowfall	29	4	1912	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1912	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1918	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Lenox 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).

Lenox Threshold Days by Year (USC00134746)

Key Facts for Lenox Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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