Reading Threshold Days by Year (USC00196783)

18 fixed thresholds counted per year at Reading (USC00196783): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Reading Thresholds

Reading: days with a maximum temperature at or above 30 C (86 F) in 59 years, most in 2016 with 58.
Reading: days with a maximum temperature at or above 90 F (32.2 C) in 59 years, most in 2016 with 35.
Reading: days with a maximum temperature at or below 0 C (32 F) in 59 years, most in 1970 with 46.
Reading: nights with a minimum temperature at or below 0 C (32 F) in 59 years, most in 1972 with 175.
18 fixed thresholds have at least one qualifying day at Reading.

Days at or above 30 C (86 F)

59 years with a qualifying day

Days per year at Reading with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 58 in 2016.

Days at or above 30 C (86 F) per year at Reading
Year	Days	Decade average
1960	19	27.1
1961	36	27.1
1962	14	27.1
1963	28	27.1
1964	23	27.1
1965	37	27.1
1966	37	27.1
1967	17	27.1
1968	29	27.1
1969	31	27.1
1970	34	33.1
1971	43	33.1
1972	22	33.1
1973	39	33.1
1974	32	33.1
1975	34	33.1
1976	35	33.1
1977	31	33.1
1978	33	33.1
1979	28	33.1
1980	39	26.1
1981	25	26.1
1982	14	26.1
1983	48	26.1
1984	28	26.1
1985	14	26.1
1986	11	26.1
1987	25	26.1
1988	37	26.1
1989	20	26.1
1990	21	24.2
1991	38	24.2
1992	11	24.2
1993	28	24.2
1994	13	24.2
1995	34	24.2
1996	14	24.2
1997	27	24.2
1998	22	24.2
1999	34	24.2
2000	24	21.3
2001	35	21.3
2003	16	21.3
2004	14	21.3
2005	31	21.3
2006	15	21.3
2007	28	21.3
2008	17	21.3
2009	12	21.3
2010	43	33.1
2011	17	33.1
2012	21	33.1
2013	23	33.1
2014	14	33.1
2015	33	33.1
2016	58	33.1
2017	47	33.1
2018	50	33.1
2019	25	33.1

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

First to last qualifying date each year at Reading
Year	First date	Last date
1960	1960-06-16	1960-09-08
1961	1961-05-14	1961-09-26
1962	1962-04-27	1962-08-27
1963	1963-05-09	1963-10-07
1964	1964-05-07	1964-09-11
1965	1965-05-09	1965-09-23
1966	1966-05-27	1966-09-02
1967	1967-06-09	1967-08-20
1968	1968-06-06	1968-10-02
1969	1969-05-17	1969-09-01
1970	1970-05-10	1970-09-25
1971	1971-06-07	1971-10-02
1972	1972-05-28	1972-09-17
1973	1973-04-22	1973-09-04
1974	1974-04-29	1974-09-13
1975	1975-05-20	1975-08-22
1976	1976-04-17	1976-09-14
1977	1977-04-22	1977-09-02
1978	1978-05-20	1978-09-21
1979	1979-05-09	1979-10-22
1980	1980-05-22	1980-09-22
1981	1981-05-25	1981-09-14
1982	1982-07-07	1982-09-11
1983	1983-06-12	1983-09-20
1984	1984-05-23	1984-08-30
1985	1985-04-30	1985-09-20
1986	1986-05-18	1986-07-26
1987	1987-05-10	1987-08-19
1988	1988-06-12	1988-08-28
1989	1989-05-20	1989-09-11
1990	1990-04-27	1990-08-27
1991	1991-04-08	1991-09-17
1992	1992-05-21	1992-08-26
1993	1993-05-09	1993-09-15
1994	1994-04-27	1994-08-28
1995	1995-05-24	1995-09-14
1996	1996-05-20	1996-08-26
1997	1997-06-10	1997-08-17
1998	1998-03-28	1998-09-06
1999	1999-05-30	1999-09-04
2000	2000-05-05	2000-09-01
2001	2001-04-22	2001-09-10
2003	2003-04-16	2003-08-22
2004	2004-04-19	2004-08-30
2005	2005-04-20	2005-09-14
2006	2006-06-01	2006-08-03
2007	2007-04-23	2007-09-26
2008	2008-06-07	2008-09-05
2009	2009-04-25	2009-08-21
2010	2010-04-07	2010-09-25
2011	2011-05-27	2011-08-02
2012	2012-04-16	2012-08-31
2013	2013-05-30	2013-09-12
2014	2014-05-12	2014-09-06
2015	2015-05-04	2015-09-18
2016	2016-05-26	2016-09-23
2017	2017-04-12	2017-09-28
2018	2018-05-03	2018-09-17
2019	2019-05-27	2019-09-24

Every Fixed Threshold

Fixed thresholds at Reading
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	59	58	2016	25
35 C (95 F): Days	33	13	2016	2
40 C (104 F): Days	1	1	1975	1
90 F (32.2 C): Days	59	35	2016	14
100 F (37.8 C): Days	1	1	1975	1
0 C (32 F): Ice days (max	59	46	1970	24
0 C (32 F): Frost days (min	59	175	1972	128
-10 C (14 F): Days with min	59	59	1970	27
-20 C (-4 F): Days with min	40	11	1971	4
20 C (68 F): Tropical nights (min	58	28	1988	11
25 C (77 F): Days with min	3	2	2011	1
10 mm (0.39 in): Days with 10 mm or more rain	59	55	1983	43
25 mm (0.98 in): Days with 25 mm or more rain	59	23	1977	14
50 mm (1.97 in): Days with 50 mm or more rain	55	7	2010	1
100 mm (3.94 in): Days with 100 mm or more rain	11	2	2006	2
10 cm (3.9 in): Days with 10 cm or more snowfall	57	10	1975	4
25 cm (9.8 in): Days with 25 cm or more snowfall	35	4	1967	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	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 1960.

Download the Data

Data for Reading 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).

Reading Threshold Days by Year (USC00196783)

Key Facts for Reading Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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