Garthby Threshold Days by Year (CA007022596)

13 fixed thresholds counted per year at Garthby (CA007022596): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Garthby Thresholds

Garthby: days with a maximum temperature at or below 0 C (32 F) in 21 years, most in 1965 with 110.
Garthby: nights with a minimum temperature at or below 0 C (32 F) in 21 years, most in 1978 with 199.
Garthby: nights with a minimum temperature at or below -10 C (14 F) in 21 years, most in 1970 with 103.
Garthby: nights with a minimum temperature at or below -20 C (-4 F) in 21 years, most in 1976 with 49.
13 fixed thresholds have at least one qualifying day at Garthby.

Days at or above 30 C (86 F)

20 years with a qualifying day

Days per year at Garthby with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1975.

Days at or above 30 C (86 F) per year at Garthby
Year	Days	Decade average
1963	8	3.4
1964	3	3.4
1965	3	3.4
1966	2	3.4
1967	1	3.4
1968	5	3.4
1969	2	3.4
1970	12	6.2
1971	4	6.2
1972	2	6.2
1973	7	6.2
1974	1	6.2
1975	13	6.2
1976	5	6.2
1977	6	6.2
1978	6	6.2
1979	6	6.2
1981	4	7.3
1982	5	7.3
1983	13	7.3

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

First to last qualifying date each year at Garthby
Year	First date	Last date
1963	1963-06-29	1963-07-29
1964	1964-06-30	1964-07-28
1965	1965-06-28	1965-09-22
1966	1966-07-03	1966-08-09
1967	1967-06-04	1967-06-04
1968	1968-07-14	1968-07-19
1969	1969-06-27	1969-07-16
1970	1970-07-10	1970-08-16
1971	1971-05-19	1971-06-30
1972	1972-07-15	1972-07-18
1973	1973-06-27	1973-09-05
1974	1974-07-14	1974-07-14
1975	1975-05-20	1975-08-03
1976	1976-06-16	1976-08-22
1977	1977-05-22	1977-08-29
1978	1978-05-27	1978-08-15
1979	1979-05-09	1979-07-26
1981	1981-06-16	1981-07-09
1982	1982-07-07	1982-07-18
1983	1983-06-13	1983-08-06

Every Fixed Threshold

Fixed thresholds at Garthby
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	20	13	1975	13
90 F (32.2 C): Days	5	2	1975	1
0 C (32 F): Ice days (max	21	110	1965	75
0 C (32 F): Frost days (min	21	199	1978	179
-10 C (14 F): Days with min	21	103	1970	68
-20 C (-4 F): Days with min	21	49	1976	28
-30 C (-22 F): Days with min	21	15	1982	2
20 C (68 F): Tropical nights (min	12	3	1972	3
10 mm (0.39 in): Days with 10 mm or more rain	21	49	1974	41
25 mm (0.98 in): Days with 25 mm or more rain	21	11	1974	7
50 mm (1.97 in): Days with 50 mm or more rain	8	2	1963	1
10 cm (3.9 in): Days with 10 cm or more snowfall	21	16	1971	6
25 cm (9.8 in): Days with 25 cm or more snowfall	8	2	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

Data for Garthby 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).

Garthby Threshold Days by Year (CA007022596)

Key Facts for Garthby Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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