Orwell 2 NW Threshold Days by Year (USC00366622)

3 fixed thresholds counted per year at Orwell 2 NW (USC00366622): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Orwell 2 NW Thresholds

Orwell 2 NW: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1977 with 41.
Orwell 2 NW: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1983 with 11.
Orwell 2 NW: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1972 with 3.
3 fixed thresholds have at least one qualifying day at Orwell 2 NW.

Days with 10 mm (0.39 in) or more of precipitation

31 years with a qualifying day

Days per year at Orwell 2 NW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1977.

Days with 10 mm (0.39 in) or more of precipitation per year at Orwell 2 NW
Year	Days	Decade average
1962	21	26.5
1963	25	26.5
1964	20	26.5
1965	29	26.5
1966	27	26.5
1967	32	26.5
1968	31	26.5
1969	27	26.5
1970	24	33
1971	27	33
1972	38	33
1973	33	33
1974	33	33
1975	36	33
1976	33	33
1977	41	33
1978	28	33
1979	37	33
1980	25	28.8
1981	25	28.8
1982	30	28.8
1983	31	28.8
1984	37	28.8
1985	30	28.8
1986	28	28.8
1988	25	28.8
1989	28	28.8
1990	37	32
1991	23	32
1992	33	32
1993	35	32

For each year, a bar from the first to the last day at Orwell 2 NW meeting 10 mm (0.39 in).

First to last qualifying date each year at Orwell 2 NW
Year	First date	Last date
1962	1962-01-07	1962-12-07
1963	1963-01-12	1963-12-09
1964	1964-01-02	1964-12-28
1965	1965-01-08	1965-12-26
1966	1966-01-24	1966-12-11
1967	1967-01-28	1967-12-13
1968	1968-01-15	1968-12-28
1969	1969-01-30	1969-12-26
1970	1970-02-03	1970-12-17
1971	1971-02-08	1971-12-31
1972	1972-02-04	1972-12-22
1973	1973-01-04	1973-12-22
1974	1974-01-11	1974-12-16
1975	1975-01-09	1975-12-26
1976	1976-01-27	1976-12-07
1977	1977-02-21	1977-12-22
1978	1978-01-09	1978-12-25
1979	1979-01-01	1979-12-25
1980	1980-01-15	1980-12-03
1981	1981-02-02	1981-12-23
1982	1982-01-04	1982-12-16
1983	1983-01-11	1983-12-29
1984	1984-02-15	1984-12-22
1985	1985-03-12	1985-12-02
1986	1986-01-20	1986-12-03
1988	1988-02-02	1988-12-25
1989	1989-03-25	1989-11-16
1990	1990-01-21	1990-12-31
1991	1991-01-16	1991-12-29
1992	1992-03-11	1992-12-31
1993	1993-01-14	1993-12-19

Every Fixed Threshold

Fixed thresholds at Orwell 2 NW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	31	41	1977	35
25 mm (0.98 in): Days with 25 mm or more rain	31	11	1983	6
50 mm (1.97 in): Days with 50 mm or more rain	8	3	1972	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

Download the Data

Data for Orwell 2 NW 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).

Orwell 2 NW Threshold Days by Year (USC00366622)

Key Facts for Orwell 2 NW Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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