Whitby Falls Threshold Days by Year

3 fixed thresholds counted per year at Whitby Falls (ASN00009166): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Whitby Falls Thresholds

Whitby Falls: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1955 with 50.
Whitby Falls: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1939 with 16.
Whitby Falls: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1932 with 4.
3 fixed thresholds have at least one qualifying day at Whitby Falls.

Days with 10 mm (0.39 in) or more of precipitation

34 years with a qualifying day

Days per year at Whitby Falls with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1955.

Days with 10 mm (0.39 in) or more of precipitation per year at Whitby Falls
Year	Days	Decade average
1930	38	32.4
1931	34	32.4
1932	32	32.4
1933	29	32.4
1934	32	32.4
1935	32	32.4
1936	30	32.4
1937	34	32.4
1938	29	32.4
1939	34	32.4
1940	17	32
1941	32	32
1942	44	32
1943	30	32
1944	25	32
1946	43	32
1947	41	32
1948	31	32
1949	25	32
1950	29	32.3
1951	33	32.3
1952	32	32.3
1953	31	32.3
1954	29	32.3
1955	50	32.3
1956	37	32.3
1957	28	32.3
1958	34	32.3
1959	20	32.3
1960	40	37.3
1961	33	37.3
1962	34	37.3
1963	42	37.3
1995	26	26

For each year, a bar from the first to the last day at Whitby Falls meeting 10 mm (0.39 in).

First to last qualifying date each year at Whitby Falls
Year	First date	Last date
1930	1930-04-14	1930-12-12
1931	1931-04-11	1931-10-14
1932	1932-04-05	1932-10-28
1933	1933-04-09	1933-10-15
1934	1934-01-15	1934-11-05
1935	1935-04-02	1935-10-26
1936	1936-05-08	1936-10-01
1937	1937-02-10	1937-10-21
1938	1938-03-12	1938-11-01
1939	1939-05-03	1939-10-03
1940	1940-04-26	1940-10-20
1941	1941-04-21	1941-11-17
1942	1942-04-09	1942-10-28
1943	1943-01-31	1943-09-21
1944	1944-04-15	1944-12-07
1946	1946-04-19	1946-11-13
1947	1947-04-02	1947-10-25
1948	1948-04-16	1948-12-24
1949	1949-04-29	1949-11-14
1950	1950-05-05	1950-11-08
1951	1951-02-22	1951-12-07
1952	1952-03-28	1952-10-31
1953	1953-02-02	1953-11-16
1954	1954-04-23	1954-10-05
1955	1955-02-15	1955-10-27
1956	1956-03-05	1956-11-29
1957	1957-04-22	1957-09-05
1958	1958-05-08	1958-12-21
1959	1959-04-12	1959-12-31
1960	1960-01-01	1960-10-15
1961	1961-03-27	1961-12-15
1962	1962-01-02	1962-12-06
1963	1963-04-22	1963-10-17
1995	1995-05-10	1995-10-30

Every Fixed Threshold

Fixed thresholds at Whitby Falls
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	34	50	1955	26
25 mm (0.98 in): Days with 25 mm or more rain	34	16	1939	10
50 mm (1.97 in): Days with 50 mm or more rain	25	4	1932	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for Whitby 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Whitby Falls Threshold Days by Year

Key Facts for Whitby Falls Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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