Point Grenville Threshold Days by Year (USC00456584)

9 fixed thresholds counted per year at Point Grenville (USC00456584): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Point Grenville Thresholds

Point Grenville: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1961 with 89.
Point Grenville: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1961 with 40.
Point Grenville: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1954 with 9.
Point Grenville: nights with a minimum temperature at or below 0 C (32 F) in 24 years, most in 1979 with 59.
9 fixed thresholds have at least one qualifying day at Point Grenville.

Nights at or below 0 C (32 F)

24 years with a qualifying day

Days per year at Point Grenville with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 59 in 1979.

Nights at or below 0 C (32 F) per year at Point Grenville
Year	Days	Decade average
1953	22	27.1
1954	37	27.1
1955	28	27.1
1956	39	27.1
1957	32	27.1
1958	11	27.1
1959	21	27.1
1960	28	34
1961	42	34
1962	29	34
1963	33	34
1964	31	34
1965	30	34
1966	33	34
1967	36	34
1968	36	34
1969	42	34
1970	38	45.6
1971	37	45.6
1972	50	45.6
1974	25	45.6
1977	54	45.6
1978	56	45.6
1979	59	45.6

For each year, a bar from the first to the last day at Point Grenville meeting 0 C (32 F).

First to last qualifying date each year at Point Grenville
Year	First date	Last date
1953	1953-01-26	1953-04-12
1954	1954-01-11	1954-12-27
1955	1955-01-02	1955-12-30
1956	1956-01-25	1956-12-29
1957	1957-01-05	1957-12-31
1958	1958-03-03	1958-12-13
1959	1959-01-02	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-28
1962	1962-01-15	1962-12-26
1963	1963-01-07	1963-12-12
1964	1964-01-19	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-26
1967	1967-01-18	1967-12-22
1968	1968-01-03	1968-12-31
1969	1969-01-01	1969-12-27
1970	1970-01-05	1970-12-23
1971	1971-01-02	1971-12-30
1972	1972-01-03	1972-12-30
1974	1974-01-01	1974-12-28
1977	1977-01-03	1977-12-31
1978	1978-01-05	1978-12-29
1979	1979-01-01	1979-12-30

Every Fixed Threshold

Fixed thresholds at Point Grenville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	10	4	1969	1
0 C (32 F): Frost days (min	24	59	1979	59
-10 C (14 F): Days with min	3	3	1972	3
10 mm (0.39 in): Days with 10 mm or more rain	29	89	1961	71
25 mm (0.98 in): Days with 25 mm or more rain	29	40	1961	25
50 mm (1.97 in): Days with 50 mm or more rain	27	9	1954	3
100 mm (3.94 in): Days with 100 mm or more rain	3	3	1959	1
10 cm (3.9 in): Days with 10 cm or more snowfall	3	2	1950	1
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 1954.

Download the Data

Data for Point Grenville 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Point Grenville Threshold Days by Year (USC00456584)

Key Facts for Point Grenville Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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