Ormstown Threshold Days by Year (CA007025745)

16 fixed thresholds counted per year at Ormstown (CA007025745): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ormstown Thresholds

Ormstown: days with 10 mm (0.39 in) or more of precipitation in 21 years, most in 1973 with 42.
Ormstown: days with 25 mm (0.98 in) or more of precipitation in 21 years, most in 1969 with 10.
Ormstown: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1975 with 28.
Ormstown: days with a maximum temperature at or below 0 C (32 F) in 20 years, most in 1978 with 95.
16 fixed thresholds have at least one qualifying day at Ormstown.

Days at or above 30 C (86 F)

20 years with a qualifying day

Days per year at Ormstown with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1975.

Days at or above 30 C (86 F) per year at Ormstown
Year	Days	Decade average
1964	10	10.5
1965	10	10.5
1966	14	10.5
1967	6	10.5
1968	8	10.5
1969	15	10.5
1970	20	15
1971	13	15
1972	9	15
1973	24	15
1974	6	15
1975	28	15
1976	7	15
1977	13	15
1978	16	15
1979	14	15
1980	3	8
1981	3	8
1982	7	8
1983	19	8

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

First to last qualifying date each year at Ormstown
Year	First date	Last date
1964	1964-05-23	1964-07-28
1965	1965-06-19	1965-09-22
1966	1966-05-24	1966-08-09
1967	1967-06-03	1967-08-17
1968	1968-07-01	1968-07-22
1969	1969-06-02	1969-08-31
1970	1970-05-01	1970-08-20
1971	1971-05-19	1971-08-19
1972	1972-06-15	1972-09-01
1973	1973-06-06	1973-09-05
1974	1974-05-15	1974-08-22
1975	1975-05-20	1975-08-26
1976	1976-06-10	1976-08-21
1977	1977-05-21	1977-09-01
1978	1978-05-27	1978-08-16
1979	1979-05-09	1979-08-02
1980	1980-06-24	1980-07-19
1981	1981-06-16	1981-07-09
1982	1982-07-06	1982-07-18
1983	1983-06-12	1983-09-20

Every Fixed Threshold

Fixed thresholds at Ormstown
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	20	28	1975	19
35 C (95 F): Days	1	2	1975	2
90 F (32.2 C): Days	16	8	1975	4
0 C (32 F): Ice days (max	20	95	1978	70
0 C (32 F): Frost days (min	20	175	1978	157
-10 C (14 F): Days with min	20	95	1978	54
-20 C (-4 F): Days with min	20	34	1970	14
-30 C (-22 F): Days with min	17	5	1976	1
20 C (68 F): Tropical nights (min	20	19	1973	10
25 C (77 F): Days with min	2	1	1975	1
10 mm (0.39 in): Days with 10 mm or more rain	21	42	1973	41
25 mm (0.98 in): Days with 25 mm or more rain	21	10	1969	4
50 mm (1.97 in): Days with 50 mm or more rain	9	2	1979	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1969	1
10 cm (3.9 in): Days with 10 cm or more snowfall	19	9	1972	2
25 cm (9.8 in): Days with 25 cm or more snowfall	9	3	1969	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

Data for Ormstown 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).

Ormstown Threshold Days by Year (CA007025745)

Key Facts for Ormstown Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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