Glen Forrest Threshold Days by Year (ASN00009051)

4 fixed thresholds counted per year at Glen Forrest (ASN00009051): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glen Forrest Thresholds

Glen Forrest: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1963 with 48.
Glen Forrest: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1965 with 14.
Glen Forrest: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1967 with 5.
Glen Forrest: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1963 with 1.
4 fixed thresholds have at least one qualifying day at Glen Forrest.

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

34 years with a qualifying day

Days per year at Glen Forrest with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1963.

Days with 10 mm (0.39 in) or more of precipitation per year at Glen Forrest
Year	Days	Decade average
1959	23	23
1960	37	36.3
1961	41	36.3
1962	28	36.3
1963	48	36.3
1964	40	36.3
1965	45	36.3
1966	17	36.3
1967	34	36.3
1971	32	29.4
1972	27	29.4
1973	37	29.4
1974	40	29.4
1975	28	29.4
1976	22	29.4
1977	22	29.4
1978	36	29.4
1979	21	29.4
1980	28	29.4
1981	38	29.4
1982	28	29.4
1983	31	29.4
1984	34	29.4
1985	25	29.4
1986	30	29.4
1987	23	29.4
1988	34	29.4
1989	23	29.4
1990	29	31.3
1991	33	31.3
1992	37	31.3
1993	31	31.3
1994	22	31.3
1995	36	31.3

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

First to last qualifying date each year at Glen Forrest
Year	First date	Last date
1959	1959-02-28	1959-12-31
1960	1960-01-01	1960-10-15
1961	1961-01-27	1961-12-18
1962	1962-05-12	1962-11-09
1963	1963-03-16	1963-11-24
1964	1964-04-01	1964-12-18
1965	1965-04-12	1965-12-27
1966	1966-01-04	1966-12-27
1967	1967-04-11	1967-12-10
1971	1971-01-31	1971-10-21
1972	1972-04-20	1972-10-28
1973	1973-04-16	1973-11-05
1974	1974-02-03	1974-11-14
1975	1975-03-22	1975-11-16
1976	1976-01-06	1976-11-12
1977	1977-05-07	1977-10-30
1978	1978-02-24	1978-11-25
1979	1979-03-15	1979-11-13
1980	1980-02-11	1980-11-26
1981	1981-02-18	1981-11-26
1982	1982-01-21	1982-10-05
1983	1983-02-16	1983-12-31
1984	1984-03-04	1984-11-17
1985	1985-04-09	1985-10-28
1986	1986-02-22	1986-11-30
1987	1987-03-17	1987-12-24
1988	1988-04-28	1988-11-07
1989	1989-04-03	1989-11-12
1990	1990-01-29	1990-10-29
1991	1991-02-26	1991-12-25
1992	1992-01-27	1992-11-20
1993	1993-02-06	1993-10-27
1994	1994-05-23	1994-09-30
1995	1995-02-24	1995-11-28

Every Fixed Threshold

Fixed thresholds at Glen Forrest
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	34	48	1963	36
25 mm (0.98 in): Days with 25 mm or more rain	34	14	1965	7
50 mm (1.97 in): Days with 50 mm or more rain	15	5	1967	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1963	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

Data for Glen Forrest 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).

Glen Forrest Threshold Days by Year (ASN00009051)

Key Facts for Glen Forrest Thresholds

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

Every Fixed Threshold

Download the Data

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