Coronach Threshold Days by Year (CA004031844)

16 fixed thresholds counted per year at Coronach (CA004031844): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Coronach Thresholds

Coronach: days with a maximum temperature at or above 30 C (86 F) in 12 years, most in 1983 with 37.
Coronach: days with a maximum temperature at or above 90 F (32.2 C) in 12 years, most in 1983 with 16.
Coronach: days with a maximum temperature at or below 0 C (32 F) in 12 years, most in 1982 with 120.
Coronach: nights with a minimum temperature at or below 0 C (32 F) in 12 years, most in 1972 with 211.
16 fixed thresholds have at least one qualifying day at Coronach.

Days at or above 30 C (86 F)

12 years with a qualifying day

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

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

First to last qualifying date each year at Coronach
Year	First date	Last date
1972	1972-05-17	1972-08-29
1973	1973-06-13	1973-08-30
1974	1974-06-17	1974-08-06
1975	1975-06-24	1975-08-06
1976	1976-07-17	1976-09-17
1977	1977-05-12	1977-08-24
1978	1978-05-15	1978-09-10
1979	1979-05-27	1979-09-16
1980	1980-04-20	1980-09-07
1981	1981-05-20	1981-09-19
1982	1982-06-22	1982-09-09
1983	1983-06-10	1983-09-26

Every Fixed Threshold

Fixed thresholds at Coronach
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	12	37	1983	37
35 C (95 F): Days	10	7	1983	7
90 F (32.2 C): Days	12	16	1983	16
100 F (37.8 C): Days	3	2	1983	2
0 C (32 F): Ice days (max	12	120	1982	98
0 C (32 F): Frost days (min	12	211	1972	200
-10 C (14 F): Days with min	12	117	1978	84
-20 C (-4 F): Days with min	12	68	1978	35
-30 C (-22 F): Days with min	12	18	1982	9
-40 C (-40 F): Days with min	1	1	1983	1
20 C (68 F): Tropical nights (min	2	1	1974	1
10 mm (0.39 in): Days with 10 mm or more rain	12	19	1976	8
25 mm (0.98 in): Days with 25 mm or more rain	11	4	1977	2
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1972	1
10 cm (3.9 in): Days with 10 cm or more snowfall	10	8	1975	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1983	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.

Download the Data

Data for Coronach 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).

Coronach Threshold Days by Year (CA004031844)

Key Facts for Coronach Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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