Mono Lake Threshold Days by Year

14 fixed thresholds counted per year at Mono Lake (USC00045779): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mono Lake Thresholds

Mono Lake: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1981 with 48.
Mono Lake: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 1972 with 41.
Mono Lake: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 1968 with 199.
Mono Lake: nights with a minimum temperature at or below -10 C (14 F) in 37 years, most in 1985 with 38.
14 fixed thresholds have at least one qualifying day at Mono Lake.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Mono Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 48 in 1981.

Days at or above 30 C (86 F) per year at Mono Lake
Year	Days	Decade average
1951	42	30.9
1952	31	30.9
1953	29	30.9
1954	23	30.9
1955	42	30.9
1956	10	30.9
1957	27	30.9
1958	32	30.9
1959	42	30.9
1960	29	27.4
1961	40	27.4
1962	14	27.4
1963	15	27.4
1964	30	27.4
1965	9	27.4
1966	38	27.4
1967	28	27.4
1968	35	27.4
1969	36	27.4
1970	40	31.1
1971	38	31.1
1972	34	31.1
1973	29	31.1
1974	29	31.1
1975	26	31.1
1976	23	31.1
1977	37	31.1
1978	25	31.1
1979	30	31.1
1980	25	22
1981	48	22
1982	11	22
1983	8	22
1984	16	22
1985	26	22
1986	26	22
1987	16	22

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

First to last qualifying date each year at Mono Lake
Year	First date	Last date
1951	1951-05-26	1951-09-15
1952	1952-07-06	1952-09-02
1953	1953-06-22	1953-09-19
1954	1954-06-20	1954-08-31
1955	1955-06-07	1955-09-11
1956	1956-06-26	1956-09-03
1957	1957-06-22	1957-09-07
1958	1958-06-22	1958-08-31
1959	1959-06-20	1959-09-06
1960	1960-06-04	1960-08-21
1961	1961-06-14	1961-08-09
1962	1962-06-24	1962-08-25
1963	1963-07-10	1963-09-28
1964	1964-06-24	1964-08-25
1965	1965-07-04	1965-08-27
1966	1966-06-26	1966-09-04
1967	1967-06-29	1967-08-30
1968	1968-06-16	1968-09-08
1969	1969-07-16	1969-09-05
1970	1970-06-21	1970-09-10
1971	1971-06-22	1971-09-15
1972	1972-06-28	1972-08-24
1973	1973-06-07	1973-08-18
1974	1974-06-11	1974-09-10
1975	1975-06-14	1975-08-10
1976	1976-06-18	1976-09-03
1977	1977-05-31	1977-09-07
1978	1978-06-08	1978-08-10
1979	1979-06-05	1979-09-12
1980	1980-07-15	1980-09-01
1981	1981-06-20	1981-09-01
1982	1982-07-11	1982-08-22
1983	1983-05-28	1983-08-06
1984	1984-05-26	1984-09-09
1985	1985-06-06	1985-08-26
1986	1986-05-29	1986-08-25
1987	1987-06-25	1987-09-09

Every Fixed Threshold

Fixed thresholds at Mono Lake
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	48	1981	16
35 C (95 F): Days	7	2	1972	1
90 F (32.2 C): Days	35	20	1972	5
0 C (32 F): Ice days (max	37	41	1972	31
0 C (32 F): Frost days (min	37	199	1968	150
-10 C (14 F): Days with min	37	38	1985	36
-20 C (-4 F): Days with min	3	1	1962	1
10 mm (0.39 in): Days with 10 mm or more rain	37	19	1982	5
25 mm (0.98 in): Days with 25 mm or more rain	34	7	1980	2
50 mm (1.97 in): Days with 50 mm or more rain	11	4	1955	3
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	36	16	1983	6
25 cm (9.8 in): Days with 25 cm or more snowfall	24	5	1969	1
50 cm (19.7 in): Days with 50 cm or more snowfall	4	1	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

Data for Mono 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).

Mono Lake Threshold Days by Year

Key Facts for Mono Lake Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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