Watrous Threshold Days by Year (CA004018640)

16 fixed thresholds counted per year at Watrous (CA004018640): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Watrous Thresholds

Watrous: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 1961 with 39.
Watrous: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 1955 with 139.
Watrous: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 1970 with 227.
Watrous: nights with a minimum temperature at or below -10 C (14 F) in 31 years, most in 1955 with 137.
16 fixed thresholds have at least one qualifying day at Watrous.

Days at or above 30 C (86 F)

31 years with a qualifying day

Days per year at Watrous with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 39 in 1961.

Days at or above 30 C (86 F) per year at Watrous
Year	Days	Decade average
1953	11	9.7
1954	3	9.7
1955	12	9.7
1956	5	9.7
1957	9	9.7
1958	14	9.7
1959	14	9.7
1960	17	15.7
1961	39	15.7
1962	6	15.7
1963	7	15.7
1964	15	15.7
1965	13	15.7
1966	12	15.7
1967	24	15.7
1968	6	15.7
1969	18	15.7
1970	18	11.1
1971	15	11.1
1972	15	11.1
1973	10	11.1
1974	8	11.1
1975	15	11.1
1976	6	11.1
1977	1	11.1
1978	6	11.1
1979	17	11.1
1980	15	11.5
1981	12	11.5
1982	6	11.5
1983	13	11.5

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

First to last qualifying date each year at Watrous
Year	First date	Last date
1953	1953-05-06	1953-08-21
1954	1954-06-22	1954-08-30
1955	1955-06-29	1955-09-02
1956	1956-06-01	1956-09-26
1957	1957-07-09	1957-08-05
1958	1958-05-12	1958-08-17
1959	1959-06-05	1959-08-07
1960	1960-05-11	1960-09-04
1961	1961-06-03	1961-09-16
1962	1962-06-25	1962-08-17
1963	1963-07-05	1963-09-09
1964	1964-05-20	1964-10-13
1965	1965-06-10	1965-08-23
1966	1966-06-28	1966-09-11
1967	1967-06-26	1967-09-06
1968	1968-06-19	1968-09-11
1969	1969-05-26	1969-09-13
1970	1970-06-03	1970-09-04
1971	1971-05-13	1971-09-11
1972	1972-05-31	1972-08-29
1973	1973-06-23	1973-08-17
1974	1974-06-24	1974-08-06
1975	1975-06-24	1975-09-16
1976	1976-07-17	1976-09-05
1977	1977-06-24	1977-06-24
1978	1978-06-05	1978-09-04
1979	1979-06-12	1979-09-16
1980	1980-04-20	1980-09-07
1981	1981-05-21	1981-09-11
1982	1982-06-22	1982-09-08
1983	1983-07-06	1983-09-01

Every Fixed Threshold

Fixed thresholds at Watrous
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	31	39	1961	13
35 C (95 F): Days	16	5	1961	2
90 F (32.2 C): Days	29	24	1961	5
100 F (37.8 C): Days	1	1	1961	1
0 C (32 F): Ice days (max	31	139	1955	125
0 C (32 F): Frost days (min	31	227	1970	215
-10 C (14 F): Days with min	31	137	1955	105
-20 C (-4 F): Days with min	31	91	1970	48
-30 C (-22 F): Days with min	31	38	1972	16
-40 C (-40 F): Days with min	8	5	1969	1
20 C (68 F): Tropical nights (min	2	1	1961	1
10 mm (0.39 in): Days with 10 mm or more rain	27	20	1954	16
25 mm (0.98 in): Days with 25 mm or more rain	24	7	1983	7
50 mm (1.97 in): Days with 50 mm or more rain	6	2	1959	1
10 cm (3.9 in): Days with 10 cm or more snowfall	21	4	1953	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1964	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

Data for Watrous 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).

Watrous Threshold Days by Year (CA004018640)

Key Facts for Watrous Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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