Eureka Threshold Days by Year (CA002401200)

9 fixed thresholds counted per year at Eureka (CA002401200): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Eureka Thresholds

Eureka: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 1956 with 290.
Eureka: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 1953 with 325.
Eureka: nights with a minimum temperature at or below -10 C (14 F) in 36 years, most in 1972 with 265.
Eureka: nights with a minimum temperature at or below -20 C (-4 F) in 36 years, most in 1976 with 236.
9 fixed thresholds have at least one qualifying day at Eureka.

Nights at or below 0 C (32 F)

36 years with a qualifying day

Days per year at Eureka with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 325 in 1953.

Nights at or below 0 C (32 F) per year at Eureka
Year	Days	Decade average
1948	294	292
1949	290	292
1950	297	298.4
1951	297	298.4
1952	296	298.4
1953	325	298.4
1954	282	298.4
1955	294	298.4
1956	302	298.4
1957	297	298.4
1958	297	298.4
1959	297	298.4
1960	288	300.6
1961	316	300.6
1962	296	300.6
1963	311	300.6
1964	296	300.6
1965	300	300.6
1966	298	300.6
1967	300	300.6
1968	302	300.6
1969	299	300.6
1970	307	304.3
1971	296	304.3
1972	316	304.3
1973	294	304.3
1974	305	304.3
1975	294	304.3
1976	319	304.3
1977	289	304.3
1978	299	304.3
1979	324	304.3
1980	315	299
1981	294	299
1982	300	299
1983	287	299

For each year, a bar from the first to the last day at Eureka meeting 0 C (32 F).

First to last qualifying date each year at Eureka
Year	First date	Last date
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-01	1983-12-31

Every Fixed Threshold

Fixed thresholds at Eureka
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	36	290	1956	256
0 C (32 F): Frost days (min	36	325	1953	287
-10 C (14 F): Days with min	36	265	1972	248
-20 C (-4 F): Days with min	36	236	1976	220
-30 C (-22 F): Days with min	36	182	1976	161
-40 C (-40 F): Days with min	36	116	1974	74
10 mm (0.39 in): Days with 10 mm or more rain	10	3	1953	1
25 mm (0.98 in): Days with 25 mm or more rain	1	1	1953	1
10 cm (3.9 in): Days with 10 cm or more snowfall	5	1	1955	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

Data for Eureka 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Eureka Threshold Days by Year (CA002401200)

Key Facts for Eureka Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

Related