Niagara Falls Threshold Days by Year (CA006135638)

15 fixed thresholds counted per year at Niagara Falls (CA006135638): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Niagara Falls Thresholds

Niagara Falls: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1979 with 39.
Niagara Falls: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1972 with 10.
Niagara Falls: days with 10 cm (3.9 in) or more of snowfall in 45 years, most in 1959 with 10.
Niagara Falls: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 1972 with 158.
15 fixed thresholds have at least one qualifying day at Niagara Falls.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Niagara Falls with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 1952.

Days at or above 30 C (86 F) per year at Niagara Falls
Year	Days	Decade average
1943	33	33.4
1944	35	33.4
1945	36	33.4
1946	24	33.4
1947	33	33.4
1948	30	33.4
1949	43	33.4
1950	14	25.5
1951	15	25.5
1952	46	25.5
1953	31	25.5
1956	8	25.5
1959	39	25.5
1961	5	13.4
1966	20	13.4
1967	8	13.4
1968	16	13.4
1969	18	13.4
1970	18	16
1971	15	16
1972	8	16
1973	23	16
1974	15	16
1975	18	16
1976	11	16
1977	16	16
1978	20	16
1979	16	16
1980	10	15.8
1981	8	15.8
1982	13	15.8
1983	32	15.8

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

First to last qualifying date each year at Niagara Falls
Year	First date	Last date
1943	1943-06-04	1943-09-07
1944	1944-05-26	1944-08-22
1945	1945-06-14	1945-09-27
1946	1946-06-16	1946-09-20
1947	1947-06-10	1947-09-11
1948	1948-06-23	1948-09-13
1949	1949-05-07	1949-08-28
1950	1950-06-08	1950-08-28
1951	1951-06-01	1951-10-05
1952	1952-06-15	1952-09-15
1953	1953-06-20	1953-09-04
1956	1956-06-13	1956-08-08
1959	1959-05-20	1959-09-28
1961	1961-06-12	1961-08-31
1966	1966-06-06	1966-09-02
1967	1967-06-11	1967-07-09
1968	1968-06-07	1968-08-24
1969	1969-05-29	1969-09-01
1970	1970-05-01	1970-09-24
1971	1971-06-19	1971-09-06
1972	1972-07-11	1972-08-24
1973	1973-06-11	1973-09-05
1974	1974-06-09	1974-08-23
1975	1975-05-22	1975-08-03
1976	1976-06-08	1976-08-21
1977	1977-05-17	1977-09-01
1978	1978-05-27	1978-09-06
1979	1979-05-08	1979-09-01
1980	1980-05-23	1980-08-27
1981	1981-06-15	1981-07-19
1982	1982-07-06	1982-09-14
1983	1983-06-12	1983-09-10

Every Fixed Threshold

Fixed thresholds at Niagara Falls
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	46	1952	32
35 C (95 F): Days	12	4	1948	2
90 F (32.2 C): Days	27	22	1952	6
100 F (37.8 C): Days	1	1	1948	1
0 C (32 F): Ice days (max	32	75	1978	47
0 C (32 F): Frost days (min	34	158	1972	115
-10 C (14 F): Days with min	34	58	1978	25
-20 C (-4 F): Days with min	17	7	1979	4
20 C (68 F): Tropical nights (min	34	40	1949	30
25 C (77 F): Days with min	1	1	1953	1
10 mm (0.39 in): Days with 10 mm or more rain	46	39	1979	35
25 mm (0.98 in): Days with 25 mm or more rain	45	10	1972	6
50 mm (1.97 in): Days with 50 mm or more rain	17	3	1945	1
10 cm (3.9 in): Days with 10 cm or more snowfall	45	10	1959	4
25 cm (9.8 in): Days with 25 cm or more snowfall	13	3	1936	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

Data for Niagara Falls 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Niagara Falls Threshold Days by Year (CA006135638)

Key Facts for Niagara Falls Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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