Norfolk 2 SW Threshold Days by Year (USC00065445)

16 fixed thresholds counted per year at Norfolk 2 SW (USC00065445): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Norfolk 2 SW Thresholds

Norfolk 2 SW: days with 10 mm (0.39 in) or more of precipitation in 84 years, most in 1996 with 61.
Norfolk 2 SW: days with 25 mm (0.98 in) or more of precipitation in 84 years, most in 1979 with 22.
Norfolk 2 SW: nights with a minimum temperature at or below 0 C (32 F) in 83 years, most in 1972 with 189.
Norfolk 2 SW: nights with a minimum temperature at or below -10 C (14 F) in 83 years, most in 1885 with 74.
16 fixed thresholds have at least one qualifying day at Norfolk 2 SW.

Days at or above 30 C (86 F)

76 years with a qualifying day

Days per year at Norfolk 2 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1988.

Days at or above 30 C (86 F) per year at Norfolk 2 SW
Year	Days	Decade average
1885	6	7
1886	8	7
1943	13	9
1946	3	9
1947	5	9
1948	8	9
1949	16	9
1951	2	7
1952	6	7
1953	13	7
1954	4	7
1955	19	7
1956	3	7
1957	10	7
1958	1	7
1959	5	7
1962	4	5.3
1963	7	5.3
1964	7	5.3
1965	5	5.3
1966	7	5.3
1967	3	5.3
1968	5	5.3
1969	4	5.3
1970	5	4.1
1971	2	4.1
1972	2	4.1
1973	8	4.1
1974	2	4.1
1975	5	4.1
1976	2	4.1
1977	5	4.1
1978	2	4.1
1979	8	4.1
1980	6	7.1
1981	3	7.1
1982	5	7.1
1983	13	7.1
1984	6	7.1
1985	1	7.1
1986	1	7.1
1987	7	7.1
1988	22	7.1
1990	2	6.1
1991	7	6.1
1993	6	6.1
1994	7	6.1
1995	8	6.1
1996	1	6.1
1997	5	6.1
1998	2	6.1
1999	17	6.1
2000	5	5.9
2003	2	5.9
2005	8	5.9
2006	7	5.9
2007	10	5.9
2008	6	5.9
2009	3	5.9
2010	10	10.4
2011	8	10.4
2012	13	10.4
2013	15	10.4
2014	2	10.4
2015	7	10.4
2016	14	10.4
2017	7	10.4
2018	16	10.4
2019	12	10.4
2020	14	12.4
2021	12	12.4
2022	18	12.4
2023	7	12.4
2024	14	12.4
2025	12	12.4
2026	10	12.4

For each year, a bar from the first to the last day at Norfolk 2 SW meeting 30 C (86 F).

First to last qualifying date each year at Norfolk 2 SW
Year	First date	Last date
1885	1885-07-09	1885-07-22
1886	1886-07-03	1886-08-28
1943	1943-06-03	1943-09-07
1946	1946-06-25	1946-07-19
1947	1947-06-11	1947-08-25
1948	1948-06-25	1948-08-29
1949	1949-06-13	1949-08-29
1951	1951-08-31	1951-09-01
1952	1952-06-27	1952-08-28
1953	1953-06-21	1953-09-06
1954	1954-06-22	1954-08-01
1955	1955-07-03	1955-08-22
1956	1956-06-15	1956-08-19
1957	1957-06-16	1957-08-04
1958	1958-07-02	1958-07-02
1959	1959-06-30	1959-08-28
1962	1962-04-28	1962-07-09
1963	1963-06-29	1963-07-30
1964	1964-05-24	1964-07-30
1965	1965-06-08	1965-08-17
1966	1966-06-28	1966-08-08
1967	1967-06-11	1967-06-17
1968	1968-07-02	1968-08-26
1969	1969-06-28	1969-07-18
1970	1970-07-25	1970-08-17
1971	1971-07-01	1971-07-02
1972	1972-07-19	1972-07-20
1973	1973-06-12	1973-09-03
1974	1974-06-11	1974-07-05
1975	1975-05-21	1975-08-04
1976	1976-04-19	1976-04-20
1977	1977-07-17	1977-08-29
1978	1978-07-22	1978-07-24
1979	1979-05-10	1979-08-06
1980	1980-06-25	1980-09-03
1981	1981-06-17	1981-07-10
1982	1982-07-09	1982-07-20
1983	1983-06-14	1983-09-21
1984	1984-06-09	1984-07-16
1985	1985-08-16	1985-08-16
1986	1986-07-08	1986-07-08
1987	1987-07-11	1987-08-18
1988	1988-06-14	1988-08-16
1990	1990-04-29	1990-07-05
1991	1991-07-18	1991-07-24
1993	1993-07-08	1993-08-29
1994	1994-06-18	1994-07-22
1995	1995-06-20	1995-08-17
1996	1996-05-21	1996-05-21
1997	1997-06-22	1997-08-17
1998	1998-08-25	1998-08-26
1999	1999-06-01	1999-09-04
2000	2000-05-08	2000-06-26
2003	2003-06-27	2003-06-28
2005	2005-06-09	2005-08-15
2006	2006-06-19	2006-08-04
2007	2007-06-09	2007-09-09
2008	2008-06-08	2008-07-21
2009	2009-04-28	2009-08-18
2010	2010-05-03	2010-09-03
2011	2011-06-02	2011-07-24
2012	2012-04-17	2012-08-10
2013	2013-05-22	2013-09-12
2014	2014-07-03	2014-07-24
2015	2015-07-20	2015-09-10
2016	2016-05-29	2016-08-15
2017	2017-05-18	2017-08-23
2018	2018-05-04	2018-09-07
2019	2019-07-04	2019-08-20
2020	2020-06-22	2020-08-24
2021	2021-05-27	2021-08-27
2022	2022-05-22	2022-08-31
2023	2023-04-15	2023-09-08
2024	2024-06-19	2024-08-03
2025	2025-06-06	2025-08-14
2026	2026-05-18	2026-08-08

Every Fixed Threshold

Fixed thresholds at Norfolk 2 SW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	76	22	1988	10
90 F (32.2 C): Days	37	5	1949	4
0 C (32 F): Ice days (max	82	89	1960	43
0 C (32 F): Frost days (min	83	189	1972	96
-10 C (14 F): Days with min	83	74	1885	35
-20 C (-4 F): Days with min	78	22	1963	7
-30 C (-22 F): Days with min	2	3	1943	1
20 C (68 F): Tropical nights (min	71	15	2005	8
10 mm (0.39 in): Days with 10 mm or more rain	84	61	1996	30
25 mm (0.98 in): Days with 25 mm or more rain	84	22	1979	7
50 mm (1.97 in): Days with 50 mm or more rain	73	9	2011	2
100 mm (3.94 in): Days with 100 mm or more rain	15	3	1955	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	83	14	1996	3
25 cm (9.8 in): Days with 25 cm or more snowfall	55	4	1966	1
50 cm (19.7 in): Days with 50 cm or more snowfall	7	1	1947	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1885.

Download the Data

Data for Norfolk 2 SW 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).

Norfolk 2 SW Threshold Days by Year (USC00065445)

Key Facts for Norfolk 2 SW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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