Reading Wb City Threshold Days by Year (USW00014767)

19 fixed thresholds counted per year at Reading Wb City (USW00014767): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Reading Wb City Thresholds

Reading Wb City: days with 10 mm (0.39 in) or more of precipitation in 147 years, most in 2018 with 63.
Reading Wb City: days with 25 mm (0.98 in) or more of precipitation in 147 years, most in 2018 with 28.
Reading Wb City: days with 50 mm (1.97 in) or more of precipitation in 119 years, most in 2004 with 7.
Reading Wb City: days with 10 cm (3.9 in) or more of snowfall in 116 years, most in 1966 with 6.
19 fixed thresholds have at least one qualifying day at Reading Wb City.

Days at or above 30 C (86 F)

81 years with a qualifying day

Days per year at Reading Wb City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 74 in 1900.

Days at or above 30 C (86 F) per year at Reading Wb City
Year	Days	Decade average
1889	26	26
1898	60	53
1899	46	53
1900	74	44.8
1901	50	44.8
1902	36	44.8
1903	33	44.8
1904	37	44.8
1905	37	44.8
1906	47	44.8
1907	35	44.8
1908	51	44.8
1909	48	44.8
1910	39	39.3
1911	54	39.3
1912	40	39.3
1913	41	39.3
1914	41	39.3
1915	34	39.3
1916	36	39.3
1917	34	39.3
1918	35	39.3
1919	39	39.3
1920	29	36.9
1921	43	36.9
1922	35	36.9
1923	43	36.9
1924	32	36.9
1925	43	36.9
1926	36	36.9
1927	20	36.9
1928	39	36.9
1929	49	36.9
1930	58	43.6
1931	53	43.6
1932	54	43.6
1933	38	43.6
1934	35	43.6
1935	32	43.6
1936	41	43.6
1937	41	43.6
1938	41	43.6
1939	43	43.6
1940	36	51.9
1941	68	51.9
1942	48	51.9
1943	65	51.9
1944	69	51.9
1945	49	51.9
1946	40	51.9
1947	53	51.9
1948	38	51.9
1949	53	51.9
1950	36	51
1951	48	51
1952	53	51
1953	61	51
1954	44	51
1955	60	51
1956	39	51
1957	62	51
1958	38	51
1959	69	51
1960	34	48.4
1961	57	48.4
1962	47	48.4
1963	41	48.4
1964	53	48.4
1965	48	48.4
1966	64	48.4
1967	40	48.4
1968	52	48.4
1992	30	52.5
1993	60	52.5
1994	53	52.5
1995	58	52.5
1996	40	52.5
1997	47	52.5
1998	72	52.5
1999	60	52.5
2000	36	36

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

First to last qualifying date each year at Reading Wb City
Year	First date	Last date
1889	1889-05-08	1889-08-30
1898	1898-05-20	1898-09-19
1899	1899-05-01	1899-09-08
1900	1900-05-13	1900-10-06
1901	1901-04-30	1901-09-15
1902	1902-04-22	1902-09-08
1903	1903-04-29	1903-09-16
1904	1904-05-13	1904-09-12
1905	1905-05-04	1905-10-01
1906	1906-05-13	1906-09-20
1907	1907-03-29	1907-09-21
1908	1908-05-13	1908-10-17
1909	1909-04-19	1909-09-23
1910	1910-05-24	1910-10-06
1911	1911-05-11	1911-09-25
1912	1912-05-21	1912-09-11
1913	1913-05-02	1913-09-07
1914	1914-05-20	1914-09-23
1915	1915-04-25	1915-09-17
1916	1916-05-28	1916-09-14
1917	1917-06-14	1917-09-02
1918	1918-05-06	1918-08-31
1919	1919-05-04	1919-10-03
1920	1920-06-02	1920-08-30
1921	1921-05-22	1921-09-29
1922	1922-06-07	1922-10-06
1923	1923-05-29	1923-09-04
1924	1924-05-06	1924-09-02
1925	1925-05-23	1925-09-13
1926	1926-05-02	1926-10-05
1927	1927-04-20	1927-10-02
1928	1928-05-04	1928-09-13
1929	1929-04-07	1929-09-10
1930	1930-05-02	1930-09-26
1931	1931-05-28	1931-09-23
1932	1932-05-16	1932-09-20
1933	1933-05-20	1933-09-27
1934	1934-05-06	1934-08-24
1935	1935-04-27	1935-08-17
1936	1936-05-08	1936-09-12
1937	1937-05-22	1937-09-04
1938	1938-04-28	1938-10-17
1939	1939-05-06	1939-10-10
1940	1940-05-14	1940-09-21
1941	1941-04-14	1941-10-07
1942	1942-04-06	1942-09-17
1943	1943-05-06	1943-09-28
1944	1944-05-04	1944-09-03
1945	1945-03-29	1945-09-29
1946	1946-05-25	1946-10-07
1947	1947-05-13	1947-10-23
1948	1948-05-10	1948-09-18
1949	1949-05-04	1949-10-11
1950	1950-06-06	1950-10-02
1951	1951-04-29	1951-10-05
1952	1952-06-04	1952-09-13
1953	1953-05-10	1953-09-30
1954	1954-06-01	1954-10-13
1955	1955-05-05	1955-08-30
1956	1956-04-28	1956-09-05
1957	1957-04-27	1957-09-22
1958	1958-05-31	1958-09-26
1959	1959-05-07	1959-10-06
1960	1960-04-14	1960-09-01
1961	1961-06-02	1961-09-25
1962	1962-04-26	1962-09-13
1963	1963-04-03	1963-09-12
1964	1964-05-09	1964-09-23
1965	1965-05-03	1965-09-23
1966	1966-05-06	1966-09-03
1967	1967-06-02	1967-09-19
1968	1968-06-05	1968-09-25
1992	1992-05-02	1992-09-22
1993	1993-05-10	1993-09-15
1994	1994-04-15	1994-08-28
1995	1995-05-24	1995-09-14
1996	1996-05-19	1996-09-09
1997	1997-05-19	1997-10-06
1998	1998-03-30	1998-09-27
1999	1999-05-29	1999-09-06
2000	2000-05-05	2000-09-09

Every Fixed Threshold

Fixed thresholds at Reading Wb City
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	81	74	1900	36
35 C (95 F): Days	69	21	1999	21
40 C (104 F): Days	1	2	1918	2
90 F (32.2 C): Days	81	42	1999	9
100 F (37.8 C): Days	20	5	1999	5
0 C (32 F): Ice days (max	81	59	1904	32
0 C (32 F): Frost days (min	81	148	1904	105
-10 C (14 F): Days with min	77	43	1904	22
-20 C (-4 F): Days with min	10	3	1899	3
20 C (68 F): Tropical nights (min	81	61	1959	24
25 C (77 F): Days with min	29	4	1999	4
10 mm (0.39 in): Days with 10 mm or more rain	147	63	2018	29
25 mm (0.98 in): Days with 25 mm or more rain	147	28	2018	7
50 mm (1.97 in): Days with 50 mm or more rain	119	7	2004	2
100 mm (3.94 in): Days with 100 mm or more rain	23	2	2004	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1972	1
10 cm (3.9 in): Days with 10 cm or more snowfall	116	6	1966	1
25 cm (9.8 in): Days with 25 cm or more snowfall	36	2	1961	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1979	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1889.

Download the Data

Data for Reading Wb City 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Reading Wb City Threshold Days by Year (USW00014767)

Key Facts for Reading Wb City Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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