Epping Threshold Days by Year (USC00322735)

20 fixed thresholds counted per year at Epping (USC00322735): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Epping Thresholds

Epping: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1953 with 21.
Epping: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1977 with 5.
Epping: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1937 with 61.
Epping: days with a maximum temperature at or below 0 C (32 F) in 26 years, most in 1951 with 115.
20 fixed thresholds have at least one qualifying day at Epping.

Days at or above 30 C (86 F)

26 years with a qualifying day

Days per year at Epping with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 61 in 1937.

Days at or above 30 C (86 F) per year at Epping
Year	Days	Decade average
1922	29	23.7
1923	20	23.7
1924	5	23.7
1925	50	23.7
1927	10	23.7
1928	13	23.7
1929	39	23.7
1932	34	46.3
1937	61	46.3
1938	41	46.3
1939	49	46.3
1940	44	34.7
1941	37	34.7
1942	29	34.7
1943	20	34.7
1944	17	34.7
1945	31	34.7
1946	35	34.7
1947	35	34.7
1948	44	34.7
1949	55	34.7
1950	24	30.6
1951	31	30.6
1952	38	30.6
1953	30	30.6
1954	30	30.6

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

First to last qualifying date each year at Epping
Year	First date	Last date
1922	1922-06-04	1922-09-27
1923	1923-05-26	1923-09-21
1924	1924-07-15	1924-09-04
1925	1925-05-18	1925-09-03
1927	1927-06-26	1927-08-25
1928	1928-05-06	1928-09-18
1929	1929-06-16	1929-09-02
1932	1932-05-13	1932-10-01
1937	1937-05-28	1937-09-20
1938	1938-06-17	1938-10-03
1939	1939-05-01	1939-09-21
1940	1940-05-11	1940-09-04
1941	1941-05-24	1941-09-18
1942	1942-04-22	1942-10-10
1943	1943-06-22	1943-10-04
1944	1944-05-29	1944-08-28
1945	1945-06-21	1945-09-06
1946	1946-04-30	1946-10-01
1947	1947-07-02	1947-09-04
1948	1948-05-18	1948-09-26
1949	1949-04-28	1949-09-24
1950	1950-06-04	1950-09-06
1951	1951-05-23	1951-08-22
1952	1952-04-26	1952-09-27
1953	1953-05-08	1953-10-01
1954	1954-06-22	1954-09-01

Every Fixed Threshold

Fixed thresholds at Epping
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	26	61	1937	30
35 C (95 F): Days	22	19	1937	2
40 C (104 F): Days	6	2	1949	1
90 F (32.2 C): Days	25	39	1949	19
100 F (37.8 C): Days	15	7	1937	2
110 F (43.3 C): Days	1	1	1949	1
0 C (32 F): Ice days (max	26	115	1951	59
0 C (32 F): Frost days (min	26	205	1929	191
-10 C (14 F): Days with min	26	124	1951	62
-20 C (-4 F): Days with min	26	64	1951	26
-30 C (-22 F): Days with min	26	24	1929	9
-40 C (-40 F): Days with min	2	1	1939	1
20 C (68 F): Tropical nights (min	14	4	1925	1
25 C (77 F): Days with min	2	2	1925	1
10 mm (0.39 in): Days with 10 mm or more rain	64	21	1953	7
25 mm (0.98 in): Days with 25 mm or more rain	54	5	1977	1
50 mm (1.97 in): Days with 50 mm or more rain	12	2	1944	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1920	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	5	1975	5
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1986	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1922.

Download the Data

Data for Epping 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).

Epping Threshold Days by Year (USC00322735)

Key Facts for Epping Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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