Anna Threshold Days by Year

16 fixed thresholds counted per year at Anna (USC00410262): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Anna Thresholds

Anna: days with 10 mm (0.39 in) or more of precipitation in 45 years, most in 1957 with 47.
Anna: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1957 with 22.
Anna: days with 50 mm (1.97 in) or more of precipitation in 43 years, most in 1902 with 9.
Anna: days with 100 mm (3.94 in) or more of precipitation in 13 years, most in 1957 with 2.
16 fixed thresholds have at least one qualifying day at Anna.

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

45 years with a qualifying day

Days per year at Anna with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1957.

Days with 10 mm (0.39 in) or more of precipitation per year at Anna
Year	Days	Decade average
1902	33	33
1949	25	25
1950	35	29
1951	26	29
1952	25	29
1953	29	29
1954	26	29
1955	21	29
1956	18	29
1957	47	29
1958	34	29
1959	29	29
1960	35	29.4
1961	28	29.4
1962	29	29.4
1963	16	29.4
1964	30	29.4
1965	29	29.4
1966	31	29.4
1967	25	29.4
1968	40	29.4
1969	31	29.4
1970	37	29.8
1971	32	29.8
1972	26	29.8
1973	40	29.8
1975	29	29.8
1976	21	29.8
1977	23	29.8
1978	21	29.8
1979	39	29.8
1980	24	32.2
1981	39	32.2
1982	31	32.2
1983	29	32.2
1984	33	32.2
1985	28	32.2
1986	36	32.2
1987	33	32.2
1988	30	32.2
1989	39	32.2
1990	38	33
1991	35	33
1992	29	33
1993	30	33

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

First to last qualifying date each year at Anna
Year	First date	Last date
1902	1902-01-26	1902-12-14
1949	1949-01-18	1949-12-09
1950	1950-01-02	1950-09-17
1951	1951-01-14	1951-11-27
1952	1952-02-02	1952-12-31
1953	1953-01-17	1953-12-03
1954	1954-01-10	1954-12-29
1955	1955-01-10	1955-12-01
1956	1956-01-19	1956-12-20
1957	1957-01-04	1957-12-25
1958	1958-01-13	1958-11-28
1959	1959-02-14	1959-12-17
1960	1960-01-01	1960-12-31
1961	1961-01-07	1961-12-17
1962	1962-01-14	1962-12-03
1963	1963-01-05	1963-12-11
1964	1964-01-16	1964-12-10
1965	1965-01-03	1965-12-11
1966	1966-01-26	1966-12-28
1967	1967-01-26	1967-12-14
1968	1968-01-18	1968-12-21
1969	1969-01-16	1969-12-29
1970	1970-01-06	1970-11-14
1971	1971-01-13	1971-12-10
1972	1972-02-12	1972-11-18
1973	1973-01-03	1973-12-19
1975	1975-01-31	1975-12-25
1976	1976-03-08	1976-12-11
1977	1977-01-09	1977-12-01
1978	1978-01-12	1978-12-31
1979	1979-01-19	1979-12-24
1980	1980-01-22	1980-12-09
1981	1981-02-10	1981-11-30
1982	1982-01-22	1982-12-27
1983	1983-01-02	1983-12-16
1984	1984-01-23	1984-12-30
1985	1985-01-01	1985-12-11
1986	1986-02-03	1986-12-18
1987	1987-01-03	1987-12-26
1988	1988-01-07	1988-12-30
1989	1989-01-13	1989-11-22
1990	1990-01-17	1990-12-29
1991	1991-01-10	1991-12-18
1992	1992-01-18	1992-12-15
1993	1993-01-20	1993-12-13

Every Fixed Threshold

Fixed thresholds at Anna
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	1	125	1902	125
35 C (95 F): Days	1	69	1902	69
40 C (104 F): Days	1	2	1902	2
90 F (32.2 C): Days	1	93	1902	93
100 F (37.8 C): Days	1	26	1902	26
0 C (32 F): Ice days (max	1	5	1902	5
0 C (32 F): Frost days (min	1	55	1902	55
-10 C (14 F): Days with min	1	2	1902	2
20 C (68 F): Tropical nights (min	1	100	1902	100
25 C (77 F): Days with min	1	1	1902	1
10 mm (0.39 in): Days with 10 mm or more rain	45	47	1957	30
25 mm (0.98 in): Days with 25 mm or more rain	45	22	1957	16
50 mm (1.97 in): Days with 50 mm or more rain	43	9	1902	6
100 mm (3.94 in): Days with 100 mm or more rain	13	2	1957	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1982	1
10 cm (3.9 in): Days with 10 cm or more snowfall	4	1	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

Data for Anna 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).

Anna Threshold Days by Year

Key Facts for Anna Thresholds

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

Every Fixed Threshold

Download the Data

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