Claresholm Waterworks Threshold Days by Year (CA003031658)

17 fixed thresholds counted per year at Claresholm Waterworks (CA003031658): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Claresholm Waterworks Thresholds

Claresholm Waterworks: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 1971 with 28.
Claresholm Waterworks: days with a maximum temperature at or below 0 C (32 F) in 24 years, most in 1972 with 89.
Claresholm Waterworks: nights with a minimum temperature at or below 0 C (32 F) in 24 years, most in 1970 with 204.
Claresholm Waterworks: nights with a minimum temperature at or below -10 C (14 F) in 24 years, most in 1982 with 96.
17 fixed thresholds have at least one qualifying day at Claresholm Waterworks.

Days at or above 30 C (86 F)

24 years with a qualifying day

Days per year at Claresholm Waterworks with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1971.

Days at or above 30 C (86 F) per year at Claresholm Waterworks
Year	Days	Decade average
1960	21	11.7
1961	22	11.7
1962	6	11.7
1963	9	11.7
1964	4	11.7
1965	7	11.7
1966	8	11.7
1967	17	11.7
1968	10	11.7
1969	13	11.7
1970	25	11.7
1971	28	11.7
1972	6	11.7
1973	15	11.7
1974	7	11.7
1975	7	11.7
1976	6	11.7
1977	3	11.7
1978	7	11.7
1979	13	11.7
1980	2	8.8
1981	19	8.8
1982	3	8.8
1983	11	8.8

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

First to last qualifying date each year at Claresholm Waterworks
Year	First date	Last date
1960	1960-07-06	1960-09-03
1961	1961-06-04	1961-08-24
1962	1962-06-25	1962-08-16
1963	1963-08-06	1963-09-08
1964	1964-07-11	1964-08-12
1965	1965-06-11	1965-08-11
1966	1966-05-26	1966-09-06
1967	1967-07-12	1967-09-29
1968	1968-06-26	1968-09-11
1969	1969-06-04	1969-09-12
1970	1970-06-02	1970-09-29
1971	1971-07-15	1971-08-27
1972	1972-05-30	1972-08-28
1973	1973-06-22	1973-09-06
1974	1974-06-16	1974-08-05
1975	1975-07-04	1975-07-27
1976	1976-07-15	1976-08-22
1977	1977-06-07	1977-07-22
1978	1978-06-29	1978-08-09
1979	1979-06-29	1979-10-10
1980	1980-07-28	1980-10-07
1981	1981-07-03	1981-09-18
1982	1982-07-29	1982-09-03
1983	1983-07-05	1983-08-31

Every Fixed Threshold

Fixed thresholds at Claresholm Waterworks
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	24	28	1971	11
35 C (95 F): Days	7	3	1971	1
90 F (32.2 C): Days	18	16	1971	3
0 C (32 F): Ice days (max	24	89	1972	63
0 C (32 F): Frost days (min	24	204	1970	185
-10 C (14 F): Days with min	24	96	1982	63
-20 C (-4 F): Days with min	24	48	1978	27
-30 C (-22 F): Days with min	23	16	1969	9
-40 C (-40 F): Days with min	5	2	1969	1
20 C (68 F): Tropical nights (min	4	1	1960	1
10 mm (0.39 in): Days with 10 mm or more rain	24	21	1968	8
25 mm (0.98 in): Days with 25 mm or more rain	21	4	1967	2
50 mm (1.97 in): Days with 50 mm or more rain	4	2	1963	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1963	1
10 cm (3.9 in): Days with 10 cm or more snowfall	19	12	1967	2
25 cm (9.8 in): Days with 25 cm or more snowfall	3	2	1967	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Claresholm Waterworks 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).

Claresholm Waterworks Threshold Days by Year (CA003031658)

Key Facts for Claresholm Waterworks Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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