Milroy Threshold Days by Year

4 fixed thresholds counted per year at Milroy (ASN00048060): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Milroy Thresholds

Milroy: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1950 with 35.
Milroy: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1890 with 14.
Milroy: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1933 with 4.
Milroy: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1891 with 1.
4 fixed thresholds have at least one qualifying day at Milroy.

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

54 years with a qualifying day

Days per year at Milroy with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Milroy
Year	Days	Decade average
1889	21	21
1890	27	15
1891	16	15
1892	10	15
1893	14	15
1894	13	15
1895	10	15
1910	13	10.4
1911	14	10.4
1912	9	10.4
1913	17	10.4
1914	9	10.4
1915	5	10.4
1916	15	10.4
1917	10	10.4
1918	8	10.4
1919	4	10.4
1920	17	12.5
1921	22	12.5
1922	7	12.5
1923	8	12.5
1924	17	12.5
1925	14	12.5
1926	17	12.5
1927	9	12.5
1928	11	12.5
1929	3	12.5
1932	8	11.4
1933	21	11.4
1934	14	11.4
1935	6	11.4
1936	16	11.4
1937	5	11.4
1938	8	11.4
1939	13	11.4
1940	3	9.7
1941	8	9.7
1943	9	9.7
1944	6	9.7
1945	8	9.7
1946	9	9.7
1947	17	9.7
1948	11	9.7
1949	16	9.7
1950	35	18.4
1952	11	18.4
1953	16	18.4
1955	20	18.4
1956	23	18.4
1958	10	18.4
1959	14	18.4
1960	13	11.7
1961	8	11.7
1962	14	11.7

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

First to last qualifying date each year at Milroy
Year	First date	Last date
1889	1889-02-06	1889-12-20
1890	1890-01-12	1890-12-29
1891	1891-01-06	1891-09-14
1892	1892-01-06	1892-10-27
1893	1893-03-17	1893-11-20
1894	1894-01-04	1894-12-11
1895	1895-01-20	1895-12-03
1910	1910-01-14	1910-11-12
1911	1911-01-10	1911-12-31
1912	1912-06-09	1912-12-23
1913	1913-01-02	1913-12-18
1914	1914-01-20	1914-12-22
1915	1915-05-05	1915-10-15
1916	1916-01-29	1916-12-11
1917	1917-01-23	1917-12-12
1918	1918-01-10	1918-12-02
1919	1919-05-21	1919-12-07
1920	1920-01-21	1920-12-06
1921	1921-01-04	1921-12-27
1922	1922-01-13	1922-12-12
1923	1923-02-10	1923-12-27
1924	1924-02-15	1924-12-16
1925	1925-01-13	1925-12-31
1926	1926-01-02	1926-12-22
1927	1927-01-06	1927-12-16
1928	1928-01-19	1928-12-27
1929	1929-04-03	1929-12-25
1932	1932-02-09	1932-11-14
1933	1933-01-27	1933-12-06
1934	1934-01-31	1934-11-22
1935	1935-01-05	1935-10-11
1936	1936-01-06	1936-12-19
1937	1937-02-11	1937-08-17
1938	1938-01-24	1938-12-28
1939	1939-01-26	1939-11-17
1940	1940-04-13	1940-12-02
1941	1941-01-01	1941-05-24
1943	1943-01-02	1943-11-19
1944	1944-01-26	1944-11-30
1945	1945-02-19	1945-12-07
1946	1946-01-02	1946-12-29
1947	1947-02-11	1947-12-25
1948	1948-01-02	1948-09-15
1949	1949-02-20	1949-11-22
1950	1950-01-01	1950-11-25
1952	1952-02-19	1952-12-30
1953	1953-01-06	1953-11-06
1955	1955-01-23	1955-12-17
1956	1956-01-19	1956-12-02
1958	1958-01-28	1958-11-25
1959	1959-01-02	1959-10-09
1960	1960-01-11	1960-12-15
1961	1961-01-03	1961-12-14
1962	1962-01-20	1962-12-30

Every Fixed Threshold

Fixed thresholds at Milroy
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	54	35	1950	14
25 mm (0.98 in): Days with 25 mm or more rain	53	14	1890	4
50 mm (1.97 in): Days with 50 mm or more rain	27	4	1933	3
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1891	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1889.

Download the Data

Data for Milroy 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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

Milroy Threshold Days by Year

Key Facts for Milroy Thresholds

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

Every Fixed Threshold

Download the Data

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