Brookville Threshold Days by Year (USC00361001)

16 fixed thresholds counted per year at Brookville (USC00361001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brookville Thresholds

Brookville: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1928 with 47.
Brookville: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1928 with 14.
Brookville: nights with a minimum temperature at or below 0 C (32 F) in 27 years, most in 1917 with 203.
Brookville: nights with a minimum temperature at or below -10 C (14 F) in 27 years, most in 1934 with 67.
16 fixed thresholds have at least one qualifying day at Brookville.

Days at or above 30 C (86 F)

25 years with a qualifying day

Days per year at Brookville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1913.

Days at or above 30 C (86 F) per year at Brookville
Year	Days	Decade average
1911	59	36.1
1913	62	36.1
1915	14	36.1
1916	35	36.1
1917	16	36.1
1918	29	36.1
1919	38	36.1
1920	14	26.4
1921	38	26.4
1922	30	26.4
1923	35	26.4
1924	18	26.4
1926	20	26.4
1928	30	26.4
1930	49	41.8
1931	44	41.8
1932	36	41.8
1933	48	41.8
1934	58	41.8
1935	28	41.8
1936	54	41.8
1937	34	41.8
1939	25	41.8
1941	32	21
1942	10	21

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

First to last qualifying date each year at Brookville
Year	First date	Last date
1911	1911-05-11	1911-09-14
1913	1913-04-24	1913-10-05
1915	1915-04-25	1915-09-16
1916	1916-07-02	1916-09-06
1917	1917-06-13	1917-08-21
1918	1918-05-26	1918-08-25
1919	1919-05-29	1919-10-03
1920	1920-05-30	1920-09-27
1921	1921-04-08	1921-09-02
1922	1922-05-24	1922-10-05
1923	1923-05-26	1923-09-04
1924	1924-06-19	1924-08-31
1926	1926-05-02	1926-08-29
1928	1928-05-04	1928-09-15
1930	1930-05-07	1930-10-15
1931	1931-05-29	1931-09-23
1932	1932-05-26	1932-09-23
1933	1933-05-24	1933-09-26
1934	1934-05-06	1934-09-27
1935	1935-06-15	1935-09-19
1936	1936-05-08	1936-09-24
1937	1937-05-30	1937-09-03
1939	1939-05-07	1939-10-10
1941	1941-05-21	1941-10-07
1942	1942-05-01	1942-09-15

Every Fixed Threshold

Fixed thresholds at Brookville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	25	62	1913	10
35 C (95 F): Days	18	14	1911	1
40 C (104 F): Days	1	1	1911	1
90 F (32.2 C): Days	24	35	1911	2
100 F (37.8 C): Days	7	3	1911	1
0 C (32 F): Ice days (max	25	52	1926	45
0 C (32 F): Frost days (min	27	203	1917	166
-10 C (14 F): Days with min	27	67	1934	44
-20 C (-4 F): Days with min	24	20	1936	8
-30 C (-22 F): Days with min	8	7	1918	2
20 C (68 F): Tropical nights (min	10	3	1911	3
10 mm (0.39 in): Days with 10 mm or more rain	32	47	1928	41
25 mm (0.98 in): Days with 25 mm or more rain	32	14	1928	7
50 mm (1.97 in): Days with 50 mm or more rain	18	3	1911	1
10 cm (3.9 in): Days with 10 cm or more snowfall	10	6	1933	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1935	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

Data for Brookville 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).

Brookville Threshold Days by Year (USC00361001)

Key Facts for Brookville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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