Sierra City Threshold Days by Year (USC00048207)

15 fixed thresholds counted per year at Sierra City (USC00048207): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sierra City Thresholds

Sierra City: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 1960 with 85.
Sierra City: days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 1959 with 58.
Sierra City: nights with a minimum temperature at or below 0 C (32 F) in 30 years, most in 1971 with 179.
Sierra City: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1983 with 77.
15 fixed thresholds have at least one qualifying day at Sierra City.

Days at or above 30 C (86 F)

31 years with a qualifying day

Days per year at Sierra City with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 85 in 1960.

Days at or above 30 C (86 F) per year at Sierra City
Year	Days	Decade average
1949	34	34
1950	51	61.8
1954	46	61.8
1958	76	61.8
1959	74	61.8
1960	85	60.1
1961	74	60.1
1965	29	60.1
1966	60	60.1
1967	63	60.1
1968	49	60.1
1969	61	60.1
1970	75	61.2
1971	58	61.2
1972	51	61.2
1973	60	61.2
1974	69	61.2
1975	61	61.2
1976	53	61.2
1977	77	61.2
1978	47	61.2
1982	44	55.6
1983	44	55.6
1984	68	55.6
1985	65	55.6
1986	64	55.6
1987	60	55.6
1988	71	55.6
1989	29	55.6
1990	44	32
1997	20	32

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

First to last qualifying date each year at Sierra City
Year	First date	Last date
1949	1949-06-09	1949-09-23
1950	1950-05-29	1950-09-05
1954	1954-05-16	1954-09-27
1958	1958-05-18	1958-10-10
1959	1959-05-13	1959-10-25
1960	1960-06-02	1960-10-03
1961	1961-06-14	1961-10-16
1965	1965-06-10	1965-10-11
1966	1966-05-25	1966-09-30
1967	1967-05-17	1967-09-28
1968	1968-06-16	1968-09-27
1969	1969-05-30	1969-09-27
1970	1970-05-15	1970-10-04
1971	1971-06-15	1971-10-12
1972	1972-05-27	1972-09-15
1973	1973-05-12	1973-09-12
1974	1974-05-25	1974-10-17
1975	1975-05-30	1975-10-02
1976	1976-05-12	1976-10-06
1977	1977-05-31	1977-10-19
1978	1978-06-06	1978-10-14
1982	1982-05-26	1982-09-10
1983	1983-05-25	1983-09-18
1984	1984-05-28	1984-09-19
1985	1985-04-14	1985-10-06
1986	1986-05-26	1986-09-08
1987	1987-06-03	1987-10-07
1988	1988-06-16	1988-10-25
1989	1989-06-23	1989-09-05
1990	1990-06-09	1990-10-01
1997	1997-07-07	1997-08-15

Every Fixed Threshold

Fixed thresholds at Sierra City
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	31	85	1960	20
35 C (95 F): Days	26	32	1959	1
90 F (32.2 C): Days	31	58	1959	6
100 F (37.8 C): Days	8	6	1988	6
0 C (32 F): Ice days (max	25	14	1949	4
0 C (32 F): Frost days (min	30	179	1971	102
-10 C (14 F): Days with min	21	14	1949	2
10 mm (0.39 in): Days with 10 mm or more rain	30	77	1983	44
25 mm (0.98 in): Days with 25 mm or more rain	30	46	1983	17
50 mm (1.97 in): Days with 50 mm or more rain	30	18	1970	6
100 mm (3.94 in): Days with 100 mm or more rain	17	6	1986	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1986	1
10 cm (3.9 in): Days with 10 cm or more snowfall	23	18	1982	1
25 cm (9.8 in): Days with 25 cm or more snowfall	17	9	1982	8
50 cm (19.7 in): Days with 50 cm or more snowfall	5	2	1982	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

Data for Sierra City 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).

Sierra City Threshold Days by Year (USC00048207)

Key Facts for Sierra City Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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