Lyons 2 N Threshold Days by Year

6 fixed thresholds counted per year at Lyons 2 N (USC00345437): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lyons 2 N Thresholds

Lyons 2 N: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1990 with 55.
Lyons 2 N: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1973 with 35.
Lyons 2 N: days with 50 mm (1.97 in) or more of precipitation in 53 years, most in 1973 with 12.
Lyons 2 N: days with 100 mm (3.94 in) or more of precipitation in 22 years, most in 1945 with 4.
6 fixed thresholds have at least one qualifying day at Lyons 2 N.

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

55 years with a qualifying day

Days per year at Lyons 2 N with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 55 in 1990.

Days with 10 mm (0.39 in) or more of precipitation per year at Lyons 2 N
Year	Days	Decade average
1943	25	37
1944	41	37
1945	44	37
1946	44	37
1947	25	37
1948	40	37
1949	40	37
1950	35	34.2
1951	37	34.2
1952	29	34.2
1953	35	34.2
1954	19	34.2
1955	26	34.2
1956	34	34.2
1957	51	34.2
1958	37	34.2
1959	39	34.2
1960	32	30.4
1961	43	30.4
1962	31	30.4
1963	23	30.4
1964	28	30.4
1965	26	30.4
1966	33	30.4
1969	27	30.4
1970	34	31.6
1971	35	31.6
1972	33	31.6
1973	48	31.6
1974	33	31.6
1975	34	31.6
1976	23	31.6
1977	25	31.6
1978	19	31.6
1982	37	31.3
1983	24	31.3
1984	39	31.3
1985	40	31.3
1986	33	31.3
1987	35	31.3
1988	23	31.3
1989	19	31.3
1990	55	41.6
1991	41	41.6
1992	40	41.6
1993	41	41.6
1994	42	41.6
1995	41	41.6
1996	35	41.6
1997	45	41.6
1998	39	41.6
1999	37	41.6
2000	39	34.7
2001	36	34.7
2002	29	34.7

For each year, a bar from the first to the last day at Lyons 2 N meeting 10 mm (0.39 in).

First to last qualifying date each year at Lyons 2 N
Year	First date	Last date
1943	1943-02-03	1943-12-27
1944	1944-01-02	1944-12-28
1945	1945-01-19	1945-11-19
1946	1946-01-04	1946-12-12
1947	1947-03-13	1947-12-31
1948	1948-02-04	1948-12-28
1949	1949-01-15	1949-12-26
1950	1950-01-03	1950-11-15
1951	1951-01-13	1951-12-08
1952	1952-01-03	1952-12-19
1953	1953-01-23	1953-12-11
1954	1954-01-09	1954-12-29
1955	1955-01-10	1955-12-01
1956	1956-01-22	1956-12-24
1957	1957-01-04	1957-12-27
1958	1958-01-20	1958-12-29
1959	1959-03-05	1959-12-27
1960	1960-01-05	1960-12-31
1961	1961-01-14	1961-12-16
1962	1962-01-14	1962-12-20
1963	1963-01-05	1963-12-11
1964	1964-02-05	1964-12-31
1965	1965-01-02	1965-12-31
1966	1966-01-01	1966-12-27
1969	1969-01-16	1969-12-28
1970	1970-03-03	1970-11-01
1971	1971-01-03	1971-12-29
1972	1972-03-21	1972-12-29
1973	1973-01-21	1973-12-04
1974	1974-01-27	1974-12-30
1975	1975-01-10	1975-12-28
1976	1976-03-08	1976-11-11
1977	1977-01-09	1977-11-20
1978	1978-02-12	1978-12-08
1982	1982-01-21	1982-12-26
1983	1983-02-01	1983-11-27
1984	1984-02-09	1984-12-31
1985	1985-01-27	1985-12-09
1986	1986-03-11	1986-11-06
1987	1987-01-10	1987-12-25
1988	1988-03-03	1988-12-22
1989	1989-01-25	1989-11-22
1990	1990-01-03	1990-12-30
1991	1991-01-15	1991-12-20
1992	1992-01-01	1992-12-15
1993	1993-01-04	1993-12-13
1994	1994-01-16	1994-12-20
1995	1995-01-13	1995-12-18
1996	1996-01-02	1996-11-25
1997	1997-02-04	1997-12-24
1998	1998-01-04	1998-12-13
1999	1999-01-02	1999-12-12
2000	2000-01-03	2000-12-27
2001	2001-01-29	2001-12-17
2002	2002-01-19	2002-12-31

Every Fixed Threshold

Fixed thresholds at Lyons 2 N
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	55	55	1990	29
25 mm (0.98 in): Days with 25 mm or more rain	55	35	1973	9
50 mm (1.97 in): Days with 50 mm or more rain	53	12	1973	3
100 mm (3.94 in): Days with 100 mm or more rain	22	4	1945	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1945	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	2	1954	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.

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Data for Lyons 2 N 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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

Lyons 2 N Threshold Days by Year

Key Facts for Lyons 2 N Thresholds

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

Every Fixed Threshold

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