Glen St Mary 1 W Threshold Days by Year (USC00083470)

13 fixed thresholds counted per year at Glen St Mary 1 W (USC00083470): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glen St Mary 1 W Thresholds

Glen St Mary 1 W: days with 10 mm (0.39 in) or more of precipitation in 83 years, most in 1948 with 63.
Glen St Mary 1 W: days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 1991 with 26.
Glen St Mary 1 W: days with 50 mm (1.97 in) or more of precipitation in 83 years, most in 1950 with 9.
Glen St Mary 1 W: days with a maximum temperature at or above 30 C (86 F) in 74 years, most in 1955 with 170.
13 fixed thresholds have at least one qualifying day at Glen St Mary 1 W.

Days at or above 30 C (86 F)

74 years with a qualifying day

Days per year at Glen St Mary 1 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 170 in 1955.

Days at or above 30 C (86 F) per year at Glen St Mary 1 W
Year	Days	Decade average
1920	122	138
1924	125	138
1925	166	138
1929	139	138
1930	126	145.6
1931	148	145.6
1932	135	145.6
1933	141	145.6
1934	149	145.6
1935	155	145.6
1936	158	145.6
1937	148	145.6
1938	148	145.6
1939	148	145.6
1940	137	151
1941	161	151
1942	154	151
1943	159	151
1944	143	151
1945	166	151
1946	152	151
1947	148	151
1948	145	151
1949	145	151
1950	147	148.3
1951	150	148.3
1952	143	148.3
1953	139	148.3
1954	129	148.3
1955	170	148.3
1956	154	148.3
1957	146	148.3
1958	152	148.3
1959	153	148.3
1960	145	140.9
1961	134	140.9
1962	166	140.9
1963	148	140.9
1964	144	140.9
1965	140	140.9
1966	117	140.9
1969	133	140.9
1976	122	137.5
1978	153	137.5
1984	128	126
1987	131	126
1988	119	126
1989	126	126
1990	152	125.4
1991	125	125.4
1992	115	125.4
1993	127	125.4
1994	119	125.4
1995	133	125.4
1996	107	125.4
1997	110	125.4
1998	128	125.4
1999	138	125.4
2000	129	132.3
2001	124	132.3
2002	152	132.3
2003	135	132.3
2004	130	132.3
2005	113	132.3
2006	156	132.3
2007	120	132.3
2008	123	132.3
2009	141	132.3
2010	151	140
2011	154	140
2012	140	140
2013	118	140
2014	137	140
2026	150	150

For each year, a bar from the first to the last day at Glen St Mary 1 W meeting 30 C (86 F).

First to last qualifying date each year at Glen St Mary 1 W
Year	First date	Last date
1920	1920-03-28	1920-11-10
1924	1924-04-22	1924-09-28
1925	1925-03-09	1925-10-26
1929	1929-03-22	1929-11-16
1930	1930-04-16	1930-10-18
1931	1931-04-04	1931-10-29
1932	1932-01-15	1932-10-21
1933	1933-03-16	1933-10-19
1934	1934-04-03	1934-10-24
1935	1935-03-22	1935-11-06
1936	1936-03-25	1936-11-04
1937	1937-03-20	1937-10-29
1938	1938-03-17	1938-11-18
1939	1939-03-05	1939-10-28
1940	1940-03-29	1940-10-30
1941	1941-04-16	1941-11-01
1942	1942-03-16	1942-10-30
1943	1943-03-13	1943-11-07
1944	1944-03-26	1944-10-07
1945	1945-02-22	1945-10-08
1946	1946-03-26	1946-11-11
1947	1947-04-05	1947-10-20
1948	1948-03-19	1948-10-01
1949	1949-03-24	1949-10-26
1950	1950-03-20	1950-10-23
1951	1951-04-26	1951-10-31
1952	1952-03-21	1952-10-16
1953	1953-02-21	1953-09-30
1954	1954-03-13	1954-10-15
1955	1955-03-12	1955-10-13
1956	1956-03-07	1956-12-16
1957	1957-02-05	1957-11-17
1958	1958-04-04	1958-11-18
1959	1959-04-07	1959-11-05
1960	1960-04-01	1960-10-20
1961	1961-03-04	1961-11-04
1962	1962-02-24	1962-10-22
1963	1963-03-11	1963-10-28
1964	1964-03-04	1964-10-05
1965	1965-03-26	1965-10-11
1966	1966-04-13	1966-10-18
1969	1969-04-04	1969-10-17
1976	1976-03-04	1976-10-09
1978	1978-04-05	1978-11-15
1984	1984-03-16	1984-11-05
1987	1987-04-16	1987-11-25
1988	1988-04-23	1988-10-04
1989	1989-03-21	1989-10-18
1990	1990-03-18	1990-10-22
1991	1991-02-22	1991-09-25
1992	1992-04-21	1992-09-28
1993	1993-05-06	1993-10-22
1994	1994-03-25	1994-10-04
1995	1995-04-18	1995-11-03
1996	1996-04-23	1996-10-30
1997	1997-03-01	1997-10-15
1998	1998-04-01	1998-10-21
1999	1999-04-03	1999-10-17
2000	2000-03-30	2000-10-07
2001	2001-02-16	2001-10-08
2002	2002-03-17	2002-10-31
2003	2003-03-07	2003-11-08
2004	2004-04-09	2004-11-04
2005	2005-05-13	2005-10-22
2006	2006-04-03	2006-10-23
2007	2007-04-02	2007-10-24
2008	2008-04-02	2008-10-17
2009	2009-03-17	2009-11-01
2010	2010-04-03	2010-10-29
2011	2011-03-20	2011-10-18
2012	2012-03-17	2012-10-09
2013	2013-04-12	2013-10-19
2014	2014-04-15	2014-10-28
2026	2026-02-21	2026-10-15

Every Fixed Threshold

Fixed thresholds at Glen St Mary 1 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	74	170	1955	150
35 C (95 F): Days	72	47	1941	17
90 F (32.2 C): Days	74	129	1962	85
100 F (37.8 C): Days	23	5	1998	2
0 C (32 F): Frost days (min	72	65	2010	25
-10 C (14 F): Days with min	4	2	2002	1
20 C (68 F): Tropical nights (min	72	117	1941	105
25 C (77 F): Days with min	21	2	1920	1
10 mm (0.39 in): Days with 10 mm or more rain	83	63	1948	40
25 mm (0.98 in): Days with 25 mm or more rain	83	26	1991	11
50 mm (1.97 in): Days with 50 mm or more rain	83	9	1950	1
100 mm (3.94 in): Days with 100 mm or more rain	35	4	1964	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1944	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

Data for Glen St Mary 1 W 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Glen St Mary 1 W Threshold Days by Year (USC00083470)

Key Facts for Glen St Mary 1 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related