Glenlea Threshold Days by Year (CA005021054)

16 fixed thresholds counted per year at Glenlea (CA005021054): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glenlea Thresholds

Glenlea: days with a maximum temperature at or above 30 C (86 F) in 16 years, most in 1983 with 37.
Glenlea: days with a maximum temperature at or above 90 F (32.2 C) in 16 years, most in 1983 with 16.
Glenlea: days with a maximum temperature at or below 0 C (32 F) in 16 years, most in 1972 with 141.
Glenlea: nights with a minimum temperature at or below 0 C (32 F) in 16 years, most in 1979 with 212.
16 fixed thresholds have at least one qualifying day at Glenlea.

Days at or above 30 C (86 F)

16 years with a qualifying day

Days per year at Glenlea with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 37 in 1983.

Days at or above 30 C (86 F) per year at Glenlea
Year	Days	Decade average
1968	3	7
1969	11	7
1970	20	15.7
1971	8	15.7
1972	19	15.7
1973	10	15.7
1974	22	15.7
1975	12	15.7
1976	22	15.7
1977	11	15.7
1978	22	15.7
1979	11	15.7
1980	24	18.8
1981	6	18.8
1982	8	18.8
1983	37	18.8

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

First to last qualifying date each year at Glenlea
Year	First date	Last date
1968	1968-06-03	1968-07-14
1969	1969-05-26	1969-08-27
1970	1970-06-05	1970-09-06
1971	1971-06-03	1971-08-28
1972	1972-05-16	1972-08-30
1973	1973-06-14	1973-08-31
1974	1974-06-19	1974-09-26
1975	1975-06-20	1975-08-23
1976	1976-06-02	1976-09-30
1977	1977-04-30	1977-08-09
1978	1978-06-05	1978-09-05
1979	1979-06-13	1979-09-16
1980	1980-04-20	1980-09-07
1981	1981-07-05	1981-09-10
1982	1982-05-28	1982-09-10
1983	1983-06-10	1983-09-02

Every Fixed Threshold

Fixed thresholds at Glenlea
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	16	37	1983	37
35 C (95 F): Days	8	4	1983	4
90 F (32.2 C): Days	16	16	1983	16
100 F (37.8 C): Days	2	1	1972	1
0 C (32 F): Ice days (max	16	141	1972	110
0 C (32 F): Frost days (min	16	212	1979	204
-10 C (14 F): Days with min	16	138	1976	97
-20 C (-4 F): Days with min	16	93	1978	47
-30 C (-22 F): Days with min	16	35	1979	13
-40 C (-40 F): Days with min	6	4	1968	1
20 C (68 F): Tropical nights (min	8	7	1983	7
10 mm (0.39 in): Days with 10 mm or more rain	16	20	1968	9
25 mm (0.98 in): Days with 25 mm or more rain	14	6	1968	3
50 mm (1.97 in): Days with 50 mm or more rain	5	2	1968	2
10 cm (3.9 in): Days with 10 cm or more snowfall	14	5	1970	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1977	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 Glenlea 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).

Glenlea Threshold Days by Year (CA005021054)

Key Facts for Glenlea Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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