Bronson Threshold Days by Year (USC00411094)

19 fixed thresholds counted per year at Bronson (USC00411094): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bronson Thresholds

Bronson: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1957 with 58.
Bronson: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1944 with 28.
Bronson: days with 50 mm (1.97 in) or more of precipitation in 46 years, most in 1950 with 11.
Bronson: nights with a minimum temperature at or below 0 C (32 F) in 24 years, most in 1942 with 62.
19 fixed thresholds have at least one qualifying day at Bronson.

Days at or above 30 C (86 F)

21 years with a qualifying day

Days per year at Bronson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 162 in 1948.

Days at or above 30 C (86 F) per year at Bronson
Year	Days	Decade average
1934	154	141.8
1935	131	141.8
1937	137	141.8
1939	145	141.8
1940	116	139.4
1941	144	139.4
1942	152	139.4
1943	130	139.4
1944	136	139.4
1945	134	139.4
1946	125	139.4
1947	148	139.4
1948	162	139.4
1949	147	139.4
1950	139	137
1951	141	137
1952	144	137
1953	148	137
1955	139	137
1956	150	137
1957	98	137

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

First to last qualifying date each year at Bronson
Year	First date	Last date
1934	1934-04-10	1934-10-30
1935	1935-03-21	1935-11-10
1937	1937-04-17	1937-10-31
1939	1939-04-02	1939-10-27
1940	1940-02-28	1940-10-29
1941	1941-04-18	1941-10-26
1942	1942-03-16	1942-12-26
1943	1943-01-01	1943-10-22
1944	1944-04-15	1944-10-26
1945	1945-03-12	1945-11-18
1946	1946-03-16	1946-11-03
1947	1947-04-05	1947-11-01
1948	1948-03-20	1948-11-05
1949	1949-04-08	1949-10-22
1950	1950-05-04	1950-11-03
1951	1951-03-08	1951-11-01
1952	1952-05-01	1952-11-03
1953	1953-03-14	1953-10-25
1955	1955-03-12	1955-11-15
1956	1956-03-06	1956-10-21
1957	1957-05-16	1957-09-22

Every Fixed Threshold

Fixed thresholds at Bronson
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	21	162	1948	98
35 C (95 F): Days	21	80	1948	7
40 C (104 F): Days	8	14	1951	3
45 C (113 F): Days	1	1	1947	1
90 F (32.2 C): Days	21	126	1956	67
100 F (37.8 C): Days	15	37	1951	20
110 F (43.3 C): Days	1	2	1947	2
0 C (32 F): Ice days (max	6	4	1951	1
0 C (32 F): Frost days (min	24	62	1942	32
-10 C (14 F): Days with min	10	5	1951	1
20 C (68 F): Tropical nights (min	24	125	1941	72
25 C (77 F): Days with min	4	7	1935	1
10 mm (0.39 in): Days with 10 mm or more rain	46	58	1957	29
25 mm (0.98 in): Days with 25 mm or more rain	46	28	1944	13
50 mm (1.97 in): Days with 50 mm or more rain	46	11	1950	3
100 mm (3.94 in): Days with 100 mm or more rain	20	2	1946	1
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1968	1
10 cm (3.9 in): Days with 10 cm or more snowfall	3	1	1929	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1929	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1934.

Download the Data

Data for Bronson 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).

Bronson Threshold Days by Year (USC00411094)

Key Facts for Bronson Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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