Atwood Lake Threshold Days by Year (USC00330298)

6 fixed thresholds counted per year at Atwood Lake (USC00330298): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atwood Lake Thresholds

Atwood Lake: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1983 with 45.
Atwood Lake: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1975 with 13.
Atwood Lake: days with 10 cm (3.9 in) or more of snowfall in 28 years, most in 1964 with 5.
Atwood Lake: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1975 with 3.
6 fixed thresholds have at least one qualifying day at Atwood Lake.

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

37 years with a qualifying day

Days per year at Atwood Lake with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1983.

Days with 10 mm (0.39 in) or more of precipitation per year at Atwood Lake
Year	Days	Decade average
1950	32	30.5
1951	41	30.5
1952	25	30.5
1953	24	30.5
1954	29	30.5
1955	29	30.5
1956	35	30.5
1957	28	30.5
1958	32	30.5
1959	30	30.5
1960	23	26.2
1961	33	26.2
1962	24	26.2
1963	18	26.2
1964	31	26.2
1965	25	26.2
1966	27	26.2
1967	28	26.2
1968	26	26.2
1969	27	26.2
1970	38	34.6
1971	23	34.6
1972	32	34.6
1973	36	34.6
1974	37	34.6
1975	38	34.6
1976	34	34.6
1977	34	34.6
1978	35	34.6
1979	39	34.6
1980	32	33
1981	35	33
1982	26	33
1983	45	33
1984	35	33
1985	25	33
1986	33	33

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

First to last qualifying date each year at Atwood Lake
Year	First date	Last date
1950	1950-01-03	1950-12-08
1951	1951-01-04	1951-12-30
1952	1952-01-03	1952-12-05
1953	1953-01-18	1953-09-20
1954	1954-01-21	1954-12-30
1955	1955-01-06	1955-11-16
1956	1956-01-30	1956-12-09
1957	1957-01-23	1957-12-26
1958	1958-01-14	1958-11-29
1959	1959-01-16	1959-12-13
1960	1960-01-03	1960-12-21
1961	1961-01-01	1961-12-05
1962	1962-01-27	1962-12-06
1963	1963-03-02	1963-12-09
1964	1964-01-02	1964-12-26
1965	1965-01-02	1965-11-13
1966	1966-01-01	1966-12-11
1967	1967-01-27	1967-12-03
1968	1968-01-14	1968-12-28
1969	1969-01-18	1969-12-11
1970	1970-01-29	1970-12-22
1971	1971-01-04	1971-12-31
1972	1972-03-03	1972-12-16
1973	1973-01-04	1973-12-27
1974	1974-01-09	1974-12-24
1975	1975-01-01	1975-12-26
1976	1976-01-03	1976-12-07
1977	1977-03-13	1977-12-14
1978	1978-01-09	1978-12-09
1979	1979-01-01	1979-12-26
1980	1980-01-12	1980-11-18
1981	1981-02-02	1981-12-23
1982	1982-01-23	1982-12-19
1983	1983-02-02	1983-12-29
1984	1984-01-24	1984-12-30
1985	1985-03-12	1985-12-12
1986	1986-01-20	1986-12-25

Every Fixed Threshold

Fixed thresholds at Atwood Lake
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	37	45	1983	33
25 mm (0.98 in): Days with 25 mm or more rain	37	13	1975	5
50 mm (1.97 in): Days with 50 mm or more rain	24	3	1975	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1969	1
10 cm (3.9 in): Days with 10 cm or more snowfall	28	5	1964	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1950	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

Data for Atwood Lake 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).

Atwood Lake Threshold Days by Year (USC00330298)

Key Facts for Atwood Lake Thresholds

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

Every Fixed Threshold

Download the Data

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