Loretta 1W Threshold Days by Year

7 fixed thresholds counted per year at Loretta 1W (USC00144821): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Loretta 1W Thresholds

Loretta 1W: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1973 with 32.
Loretta 1W: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 2007 with 13.
Loretta 1W: days with 50 mm (1.97 in) or more of precipitation in 43 years, most in 1961 with 6.
Loretta 1W: days with 10 cm (3.9 in) or more of snowfall in 43 years, most in 1953 with 4.
7 fixed thresholds have at least one qualifying day at Loretta 1W.

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

67 years with a qualifying day

Days per year at Loretta 1W with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1973.

Days with 10 mm (0.39 in) or more of precipitation per year at Loretta 1W
Year	Days	Decade average
1943	12	17
1945	17	17
1946	22	17
1947	17	17
1951	29	19.8
1952	13	19.8
1953	16	19.8
1954	12	19.8
1955	20	19.8
1956	9	19.8
1957	28	19.8
1958	29	19.8
1959	22	19.8
1960	21	19.2
1961	21	19.2
1962	22	19.2
1963	18	19.2
1964	17	19.2
1965	23	19.2
1966	16	19.2
1967	16	19.2
1968	13	19.2
1969	25	19.2
1970	15	19.9
1971	21	19.9
1972	21	19.9
1973	32	19.9
1974	12	19.9
1975	18	19.9
1976	16	19.9
1977	21	19.9
1978	23	19.9
1979	20	19.9
1980	18	18.2
1981	23	18.2
1982	15	18.2
1983	14	18.2
1984	25	18.2
1985	17	18.2
1986	23	18.2
1987	20	18.2
1988	12	18.2
1989	15	18.2
1990	21	20.6
1991	15	20.6
1992	29	20.6
1993	24	20.6
1994	12	20.6
1995	18	20.6
1996	21	20.6
1997	21	20.6
1998	24	20.6
1999	21	20.6
2000	19	19
2001	17	19
2002	15	19
2003	18	19
2004	20	19
2005	19	19
2006	21	19
2007	22	19
2008	24	19
2009	15	19
2010	19	22
2013	18	22
2019	29	22
2020	19	19

For each year, a bar from the first to the last day at Loretta 1W meeting 10 mm (0.39 in).

First to last qualifying date each year at Loretta 1W
Year	First date	Last date
1943	1943-04-10	1943-12-10
1945	1945-04-03	1945-12-24
1946	1946-02-18	1946-11-09
1947	1947-03-13	1947-12-04
1951	1951-02-25	1951-10-27
1952	1952-03-18	1952-12-19
1953	1953-03-01	1953-12-03
1954	1954-04-21	1954-10-07
1955	1955-01-05	1955-10-03
1956	1956-01-29	1956-10-30
1957	1957-03-21	1957-10-14
1958	1958-02-27	1958-11-18
1959	1959-03-26	1959-10-31
1960	1960-01-14	1960-12-11
1961	1961-04-08	1961-11-16
1962	1962-01-26	1962-10-29
1963	1963-03-11	1963-10-21
1964	1964-03-20	1964-11-16
1965	1965-02-10	1965-10-19
1966	1966-04-30	1966-09-18
1967	1967-04-12	1967-09-18
1968	1968-04-03	1968-11-15
1969	1969-02-14	1969-10-30
1970	1970-03-28	1970-10-09
1971	1971-01-03	1971-11-17
1972	1972-04-26	1972-11-13
1973	1973-03-02	1973-12-04
1974	1974-03-10	1974-11-03
1975	1975-02-04	1975-11-20
1976	1976-02-21	1976-10-27
1977	1977-04-04	1977-12-05
1978	1978-02-13	1978-11-26
1979	1979-01-13	1979-12-28
1980	1980-01-19	1980-12-08
1981	1981-03-25	1981-12-01
1982	1982-03-19	1982-12-28
1983	1983-01-31	1983-11-27
1984	1984-03-04	1984-12-16
1985	1985-04-26	1985-10-10
1986	1986-03-12	1986-12-07
1987	1987-02-28	1987-10-31
1988	1988-04-01	1988-09-19
1989	1989-03-30	1989-09-13
1990	1990-02-22	1990-09-18
1991	1991-03-17	1991-12-23
1992	1992-01-01	1992-11-25
1993	1993-01-09	1993-12-14
1994	1994-02-22	1994-12-07
1995	1995-01-27	1995-09-21
1996	1996-03-31	1996-11-17
1997	1997-04-05	1997-12-24
1998	1998-02-01	1998-11-03
1999	1999-01-30	1999-09-12
2000	2000-02-23	2000-11-12
2001	2001-01-28	2001-10-05
2002	2002-01-31	2002-10-27
2003	2003-03-19	2003-09-11
2004	2004-03-01	2004-10-11
2005	2005-01-05	2005-11-28
2006	2006-03-20	2006-12-31
2007	2007-02-13	2007-12-15
2008	2008-02-17	2008-10-22
2009	2009-04-13	2009-12-23
2010	2010-03-27	2010-11-12
2013	2013-02-21	2013-11-05
2019	2019-01-12	2019-12-28
2020	2020-02-24	2020-11-25

Every Fixed Threshold

Fixed thresholds at Loretta 1W
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	67	32	1973	19
25 mm (0.98 in): Days with 25 mm or more rain	66	13	2007	7
50 mm (1.97 in): Days with 50 mm or more rain	43	6	1961	2
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1955	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1970	1
10 cm (3.9 in): Days with 10 cm or more snowfall	43	4	1953	3
25 cm (9.8 in): Days with 25 cm or more snowfall	7	1	1955	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 Loretta 1W 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).

Loretta 1W Threshold Days by Year

Key Facts for Loretta 1W Thresholds

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

Every Fixed Threshold

Download the Data

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