Glenoma Threshold Days by Year (USC00453177)

15 fixed thresholds counted per year at Glenoma (USC00453177): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glenoma Thresholds

Glenoma: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1987 with 40.
Glenoma: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1996 with 87.
Glenoma: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1996 with 24.
Glenoma: days with a maximum temperature at or above 90 F (32.2 C) in 32 years, most in 1987 with 22.
15 fixed thresholds have at least one qualifying day at Glenoma.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Glenoma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 40 in 1987.

Days at or above 30 C (86 F) per year at Glenoma
Year	Days	Decade average
1968	12	12
1969	12	12
1970	16	14.6
1971	13	14.6
1972	19	14.6
1973	16	14.6
1974	18	14.6
1975	12	14.6
1976	2	14.6
1977	19	14.6
1978	17	14.6
1979	14	14.6
1980	9	20.2
1981	16	20.2
1982	20	20.2
1983	6	20.2
1984	12	20.2
1985	28	20.2
1986	30	20.2
1987	40	20.2
1988	24	20.2
1989	17	20.2
1990	23	18.1
1991	17	18.1
1992	29	18.1
1993	7	18.1
1996	25	18.1
1997	17	18.1
1998	20	18.1
1999	7	18.1
2000	9	11
2001	9	11
2002	15	11

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

First to last qualifying date each year at Glenoma
Year	First date	Last date
1968	1968-06-26	1968-08-11
1969	1969-05-08	1969-09-08
1970	1970-06-02	1970-09-28
1971	1971-05-12	1971-08-12
1972	1972-05-28	1972-09-04
1973	1973-05-14	1973-09-11
1974	1974-06-18	1974-09-25
1975	1975-05-14	1975-10-01
1976	1976-09-21	1976-09-27
1977	1977-06-18	1977-08-18
1978	1978-06-03	1978-08-10
1979	1979-06-02	1979-10-04
1980	1980-07-21	1980-10-06
1981	1981-07-03	1981-09-16
1982	1982-06-11	1982-09-24
1983	1983-05-25	1983-08-14
1984	1984-05-29	1984-08-27
1985	1985-05-17	1985-09-26
1986	1986-05-31	1986-09-07
1987	1987-04-27	1987-10-12
1988	1988-05-12	1988-10-11
1989	1989-06-02	1989-09-29
1990	1990-06-22	1990-09-22
1991	1991-07-03	1991-09-26
1992	1992-05-04	1992-09-30
1993	1993-08-02	1993-09-09
1996	1996-06-03	1996-08-29
1997	1997-05-11	1997-09-24
1998	1998-07-16	1998-09-04
1999	1999-05-23	1999-09-13
2000	2000-06-25	2000-08-23
2001	2001-05-22	2001-08-10
2002	2002-06-12	2002-08-29

Every Fixed Threshold

Fixed thresholds at Glenoma
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	40	1987	15
35 C (95 F): Days	23	8	1992	3
40 C (104 F): Days	2	1	1981	1
90 F (32.2 C): Days	32	22	1987	7
100 F (37.8 C): Days	9	3	1977	1
0 C (32 F): Ice days (max	19	11	1972	1
0 C (32 F): Frost days (min	30	103	1971	78
-10 C (14 F): Days with min	17	13	1972	5
10 mm (0.39 in): Days with 10 mm or more rain	33	87	1996	53
25 mm (0.98 in): Days with 25 mm or more rain	33	24	1996	15
50 mm (1.97 in): Days with 50 mm or more rain	26	5	1975	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1977	1
10 cm (3.9 in): Days with 10 cm or more snowfall	20	5	1969	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	3	1980	2
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1980	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

Data for Glenoma 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).

Glenoma Threshold Days by Year (USC00453177)

Key Facts for Glenoma Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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