Forest Glen Threshold Days by Year (USC00043130)

15 fixed thresholds counted per year at Forest Glen (USC00043130): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Forest Glen Thresholds

Forest Glen: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1983 with 75.
Forest Glen: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1983 with 44.
Forest Glen: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1983 with 18.
Forest Glen: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1960 with 106.
15 fixed thresholds have at least one qualifying day at Forest Glen.

Days at or above 30 C (86 F)

36 years with a qualifying day

Days per year at Forest Glen with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 106 in 1960.

Days at or above 30 C (86 F) per year at Forest Glen
Year	Days	Decade average
1930	57	79.7
1931	80	79.7
1932	84	79.7
1933	76	79.7
1934	77	79.7
1935	80	79.7
1936	86	79.7
1937	80	79.7
1938	95	79.7
1939	82	79.7
1940	84	71.5
1941	62	71.5
1942	53	71.5
1943	98	71.5
1944	67	71.5
1946	65	71.5
1957	82	84.7
1958	93	84.7
1959	79	84.7
1960	106	89.7
1961	85	89.7
1963	74	89.7
1965	85	89.7
1966	84	89.7
1967	104	89.7
1969	90	89.7
1971	69	77.3
1973	76	77.3
1974	91	77.3
1975	89	77.3
1977	73	77.3
1978	62	77.3
1979	81	77.3
1982	73	78
1983	74	78
1984	87	78

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

First to last qualifying date each year at Forest Glen
Year	First date	Last date
1930	1930-06-06	1930-09-06
1931	1931-04-21	1931-10-02
1932	1932-05-11	1932-10-05
1933	1933-05-28	1933-10-07
1934	1934-05-10	1934-09-30
1935	1935-05-20	1935-10-01
1936	1936-05-08	1936-10-10
1937	1937-05-14	1937-09-27
1938	1938-05-12	1938-09-22
1939	1939-04-19	1939-09-24
1940	1940-05-09	1940-08-31
1941	1941-05-10	1941-09-25
1942	1942-05-20	1942-10-09
1943	1943-05-22	1943-10-15
1944	1944-05-03	1944-09-28
1946	1946-04-23	1946-09-29
1957	1957-04-29	1957-09-25
1958	1958-05-10	1958-10-13
1959	1959-05-12	1959-10-18
1960	1960-05-31	1960-10-04
1961	1961-05-19	1961-10-05
1963	1963-05-18	1963-10-04
1965	1965-05-13	1965-10-10
1966	1966-05-03	1966-10-11
1967	1967-05-08	1967-09-29
1969	1969-05-07	1969-09-29
1971	1971-06-17	1971-10-08
1973	1973-06-05	1973-09-16
1974	1974-05-26	1974-10-02
1975	1975-05-13	1975-10-02
1977	1977-06-06	1977-09-15
1978	1978-06-03	1978-10-14
1979	1979-05-14	1979-10-06
1982	1982-05-22	1982-09-11
1983	1983-05-21	1983-09-23
1984	1984-05-27	1984-09-29

Every Fixed Threshold

Fixed thresholds at Forest Glen
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	36	106	1960	87
35 C (95 F): Days	36	50	1960	33
40 C (104 F): Days	18	8	1959	3
90 F (32.2 C): Days	36	86	1967	71
100 F (37.8 C): Days	34	22	1959	9
110 F (43.3 C): Days	1	1	1959	1
0 C (32 F): Ice days (max	7	7	1932	1
0 C (32 F): Frost days (min	36	179	1939	116
-10 C (14 F): Days with min	27	11	1932	2
10 mm (0.39 in): Days with 10 mm or more rain	37	75	1983	38
25 mm (0.98 in): Days with 25 mm or more rain	37	44	1983	17
50 mm (1.97 in): Days with 50 mm or more rain	37	18	1983	4
100 mm (3.94 in): Days with 100 mm or more rain	17	3	1967	2
10 cm (3.9 in): Days with 10 cm or more snowfall	16	6	1965	2
25 cm (9.8 in): Days with 25 cm or more snowfall	5	2	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for Forest Glen 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).

Forest Glen Threshold Days by Year (USC00043130)

Key Facts for Forest Glen Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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