Nora Threshold Days by Year (RSM00031318)

3 fixed thresholds counted per year at Nora (RSM00031318): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nora Thresholds

Nora: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1946 with 27.
Nora: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1936 with 10.
Nora: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 1948 with 2.
3 fixed thresholds have at least one qualifying day at Nora.

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

47 years with a qualifying day

Days per year at Nora with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1946.

Days with 10 mm (0.39 in) or more of precipitation per year at Nora
Year	Days	Decade average
1936	24	19.3
1937	18	19.3
1939	16	19.3
1940	20	16.9
1941	11	16.9
1942	18	16.9
1943	21	16.9
1944	11	16.9
1945	14	16.9
1946	27	16.9
1947	16	16.9
1948	18	16.9
1949	13	16.9
1950	14	16.9
1951	23	16.9
1952	11	16.9
1953	21	16.9
1954	13	16.9
1955	15	16.9
1956	20	16.9
1957	19	16.9
1958	16	16.9
1960	17	18.2
1961	26	18.2
1962	16	18.2
1963	19	18.2
1964	15	18.2
1965	16	18.2
1972	25	19.7
1975	19	19.7
1976	19	19.7
1977	17	19.7
1978	18	19.7
1979	20	19.7
1980	12	17.7
1981	14	17.7
1982	22	17.7
1983	21	17.7
1984	21	17.7
1985	27	17.7
1986	12	17.7
1987	13	17.7
1988	16	17.7
1989	19	17.7
1990	23	16.7
1991	11	16.7
1992	16	16.7

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

First to last qualifying date each year at Nora
Year	First date	Last date
1936	1936-05-12	1936-10-11
1937	1937-04-10	1937-10-12
1939	1939-06-11	1939-10-07
1940	1940-04-24	1940-09-24
1941	1941-05-01	1941-09-11
1942	1942-06-02	1942-10-14
1943	1943-05-21	1943-11-03
1944	1944-05-02	1944-11-09
1945	1945-04-01	1945-09-28
1946	1946-04-21	1946-10-12
1947	1947-06-07	1947-10-10
1948	1948-04-16	1948-09-14
1949	1949-04-26	1949-09-15
1950	1950-04-26	1950-10-08
1951	1951-04-07	1951-11-21
1952	1952-06-02	1952-09-06
1953	1953-05-23	1953-11-30
1954	1954-03-30	1954-11-23
1955	1955-05-04	1955-12-14
1956	1956-05-05	1956-11-04
1957	1957-04-07	1957-09-22
1958	1958-05-13	1958-11-10
1960	1960-04-23	1960-10-17
1961	1961-04-03	1961-09-13
1962	1962-05-25	1962-09-21
1963	1963-04-14	1963-10-24
1964	1964-04-10	1964-10-21
1965	1965-05-05	1965-10-25
1972	1972-04-03	1972-09-07
1975	1975-04-28	1975-10-08
1976	1976-02-13	1976-10-20
1977	1977-04-01	1977-10-25
1978	1978-04-14	1978-10-18
1979	1979-05-05	1979-12-20
1980	1980-04-19	1980-09-19
1981	1981-05-02	1981-08-29
1982	1982-05-06	1982-10-21
1983	1983-03-10	1983-11-02
1984	1984-04-27	1984-10-16
1985	1985-04-23	1985-10-29
1986	1986-06-19	1986-09-27
1987	1987-04-30	1987-10-01
1988	1988-04-30	1988-08-21
1989	1989-04-22	1989-10-05
1990	1990-04-01	1990-11-13
1991	1991-04-25	1991-11-02
1992	1992-04-08	1992-09-15

Every Fixed Threshold

Fixed thresholds at Nora
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	47	27	1946	16
25 mm (0.98 in): Days with 25 mm or more rain	46	10	1936	6
50 mm (1.97 in): Days with 50 mm or more rain	23	2	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.

Download the Data

Data for Nora 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).

Nora Threshold Days by Year (RSM00031318)

Key Facts for Nora Thresholds

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

Every Fixed Threshold

Download the Data

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