Surry Mtn Lake Threshold Days by Year

15 fixed thresholds counted per year at Surry Mtn Lake (USC00278539): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Surry Mtn Lake Thresholds

Surry Mtn Lake: days with 10 cm (3.9 in) or more of snowfall in 49 years, most in 1956 with 14.
Surry Mtn Lake: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1984 with 47.
Surry Mtn Lake: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1986 with 16.
Surry Mtn Lake: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1949 with 46.
15 fixed thresholds have at least one qualifying day at Surry Mtn Lake.

Days at or above 30 C (86 F)

42 years with a qualifying day

Days per year at Surry Mtn Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 1949.

Days at or above 30 C (86 F) per year at Surry Mtn Lake
Year	Days	Decade average
1949	46	46
1950	20	26.2
1951	21	26.2
1952	33	26.2
1953	31	26.2
1954	11	26.2
1955	40	26.2
1956	23	26.2
1957	28	26.2
1958	14	26.2
1959	41	26.2
1960	12	15.5
1961	31	15.5
1962	9	15.5
1963	20	15.5
1964	18	15.5
1965	20	15.5
1966	11	15.5
1967	7	15.5
1968	14	15.5
1969	13	15.5
1970	17	14.1
1971	14	14.1
1972	7	14.1
1973	16	14.1
1974	11	14.1
1975	14	14.1
1976	12	14.1
1977	14	14.1
1978	22	14.1
1979	14	14.1
1980	19	16.3
1981	6	16.3
1982	6	16.3
1983	40	16.3
1984	14	16.3
1985	6	16.3
1986	5	16.3
1987	18	16.3
1988	33	16.3
1989	16	16.3
2026	13	13

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

First to last qualifying date each year at Surry Mtn Lake
Year	First date	Last date
1949	1949-05-05	1949-08-28
1950	1950-06-07	1950-08-18
1951	1951-05-16	1951-08-31
1952	1952-06-16	1952-09-13
1953	1953-05-11	1953-09-06
1954	1954-06-20	1954-08-26
1955	1955-05-23	1955-09-19
1956	1956-06-02	1956-09-06
1957	1957-04-28	1957-09-17
1958	1958-07-01	1958-09-01
1959	1959-05-21	1959-09-25
1960	1960-06-06	1960-09-09
1961	1961-05-15	1961-09-25
1962	1962-04-28	1962-07-09
1963	1963-06-25	1963-10-08
1964	1964-05-10	1964-09-12
1965	1965-05-10	1965-09-23
1966	1966-06-25	1966-08-20
1967	1967-06-05	1967-06-18
1968	1968-06-07	1968-08-26
1969	1969-04-29	1969-09-02
1970	1970-05-11	1970-09-23
1971	1971-05-20	1971-09-06
1972	1972-07-03	1972-08-27
1973	1973-06-12	1973-09-05
1974	1974-06-10	1974-08-22
1975	1975-05-21	1975-08-06
1976	1976-04-18	1976-08-23
1977	1977-05-18	1977-09-03
1978	1978-05-21	1978-08-18
1979	1979-05-10	1979-08-06
1980	1980-05-24	1980-09-23
1981	1981-05-26	1981-07-10
1982	1982-07-08	1982-07-20
1983	1983-06-14	1983-09-21
1984	1984-06-08	1984-08-16
1985	1985-05-12	1985-08-16
1986	1986-05-19	1986-07-25
1987	1987-05-30	1987-08-19
1988	1988-05-29	1988-08-16
1989	1989-05-20	1989-09-11
2026	2026-05-19	2026-08-09

Every Fixed Threshold

Fixed thresholds at Surry Mtn Lake
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	42	46	1949	13
35 C (95 F): Days	13	6	1953	1
90 F (32.2 C): Days	41	24	1955	3
0 C (32 F): Ice days (max	42	69	1978	17
0 C (32 F): Frost days (min	42	202	1956	57
-10 C (14 F): Days with min	42	85	1978	22
-20 C (-4 F): Days with min	42	35	1963	8
-30 C (-22 F): Days with min	18	9	1971	1
20 C (68 F): Tropical nights (min	29	10	1955	7
10 mm (0.39 in): Days with 10 mm or more rain	48	47	1984	32
25 mm (0.98 in): Days with 25 mm or more rain	48	16	1986	5
50 mm (1.97 in): Days with 50 mm or more rain	28	4	1986	1
100 mm (3.94 in): Days with 100 mm or more rain	1	0	n/a	1
10 cm (3.9 in): Days with 10 cm or more snowfall	49	14	1956	4
25 cm (9.8 in): Days with 25 cm or more snowfall	19	4	1978	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

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Data for Surry Mtn Lake 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).

Surry Mtn Lake Threshold Days by Year

Key Facts for Surry Mtn Lake Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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