Macklin Threshold Days by Year (CA004044800)

15 fixed thresholds counted per year at Macklin (CA004044800): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Macklin Thresholds

Macklin: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1964 with 16.
Macklin: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 1961 with 27.
Macklin: days with a maximum temperature at or below 0 C (32 F) in 32 years, most in 1951 with 144.
Macklin: nights with a minimum temperature at or below 0 C (32 F) in 32 years, most in 1946 with 226.
15 fixed thresholds have at least one qualifying day at Macklin.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Macklin with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 27 in 1961.

Days at or above 30 C (86 F) per year at Macklin
Year	Days	Decade average
1945	18	16.3
1946	13	16.3
1947	22	16.3
1948	12	16.3
1950	13	11.3
1951	7	11.3
1952	6	11.3
1953	15	11.3
1954	5	11.3
1955	13	11.3
1956	6	11.3
1957	12	11.3
1958	20	11.3
1959	16	11.3
1960	22	11.4
1961	27	11.4
1962	6	11.4
1963	3	11.4
1964	8	11.4
1965	14	11.4
1966	10	11.4
1968	5	11.4
1969	8	11.4
1970	10	9.1
1971	8	9.1
1972	10	9.1
1973	14	9.1
1974	8	9.1
1975	8	9.1
1976	2	9.1
1977	8	9.1
1978	14	9.1

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

First to last qualifying date each year at Macklin
Year	First date	Last date
1945	1945-05-30	1945-08-19
1946	1946-05-27	1946-08-24
1947	1947-07-03	1947-08-09
1948	1948-06-01	1948-09-02
1950	1950-06-12	1950-09-03
1951	1951-05-23	1951-08-04
1952	1952-07-04	1952-09-26
1953	1953-05-06	1953-08-19
1954	1954-07-05	1954-07-20
1955	1955-07-13	1955-09-04
1956	1956-06-01	1956-07-20
1957	1957-04-29	1957-10-01
1958	1958-05-28	1958-09-12
1959	1959-07-11	1959-08-03
1960	1960-05-12	1960-09-04
1961	1961-05-22	1961-09-05
1962	1962-06-24	1962-08-17
1963	1963-07-22	1963-09-29
1964	1964-06-27	1964-08-18
1965	1965-06-10	1965-08-23
1966	1966-05-27	1966-09-18
1968	1968-06-19	1968-09-10
1969	1969-07-10	1969-08-25
1970	1970-06-02	1970-08-16
1971	1971-08-03	1971-08-21
1972	1972-05-31	1972-08-28
1973	1973-06-13	1973-08-22
1974	1974-06-23	1974-08-05
1975	1975-07-03	1975-07-27
1976	1976-08-22	1976-08-25
1977	1977-04-26	1977-07-25
1978	1978-06-04	1978-09-04

Every Fixed Threshold

Fixed thresholds at Macklin
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	27	1961	14
35 C (95 F): Days	14	3	1961	1
90 F (32.2 C): Days	31	14	1947	2
0 C (32 F): Ice days (max	32	144	1951	111
0 C (32 F): Frost days (min	32	226	1946	185
-10 C (14 F): Days with min	32	147	1951	109
-20 C (-4 F): Days with min	32	84	1951	66
-30 C (-22 F): Days with min	32	31	1951	12
-40 C (-40 F): Days with min	14	9	1969	1
20 C (68 F): Tropical nights (min	3	1	1951	1
10 mm (0.39 in): Days with 10 mm or more rain	33	16	1964	8
25 mm (0.98 in): Days with 25 mm or more rain	29	6	1968	1
50 mm (1.97 in): Days with 50 mm or more rain	4	2	1963	1
10 cm (3.9 in): Days with 10 cm or more snowfall	25	5	1948	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

Data for Macklin 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).

Macklin Threshold Days by Year (CA004044800)

Key Facts for Macklin Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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