Drake Threshold Days by Year (USC00322298)

19 fixed thresholds counted per year at Drake (USC00322298): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Drake Thresholds

Drake: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1954 with 19.
Drake: nights with a minimum temperature at or below 0 C (32 F) in 47 years, most in 1965 with 210.
Drake: nights with a minimum temperature at or below -10 C (14 F) in 47 years, most in 1955 with 131.
Drake: nights with a minimum temperature at or below -20 C (-4 F) in 47 years, most in 1950 with 77.
19 fixed thresholds have at least one qualifying day at Drake.

Days at or above 30 C (86 F)

46 years with a qualifying day

Days per year at Drake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 61 in 1936.

Days at or above 30 C (86 F) per year at Drake
Year	Days	Decade average
1934	44	39.7
1935	23	39.7
1936	61	39.7
1937	34	39.7
1938	30	39.7
1939	46	39.7
1940	35	29
1941	32	29
1942	21	29
1943	31	29
1944	18	29
1946	22	29
1947	27	29
1948	37	29
1949	38	29
1950	29	24.8
1951	15	24.8
1952	30	24.8
1953	24	24.8
1954	10	24.8
1955	32	24.8
1956	16	24.8
1957	23	24.8
1958	26	24.8
1959	43	24.8
1960	33	27.7
1961	54	27.7
1962	12	27.7
1963	31	27.7
1964	24	27.7
1965	13	27.7
1966	35	27.7
1967	34	27.7
1968	15	27.7
1969	26	27.7
1970	37	29.8
1971	22	29.8
1972	25	29.8
1973	25	29.8
1974	34	29.8
1975	22	29.8
1976	45	29.8
1977	30	29.8
1978	34	29.8
1979	24	29.8
1980	35	35

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

First to last qualifying date each year at Drake
Year	First date	Last date
1934	1934-05-05	1934-10-13
1935	1935-06-29	1935-09-22
1936	1936-05-11	1936-10-08
1937	1937-05-28	1937-10-03
1938	1938-06-13	1938-09-25
1939	1939-04-30	1939-09-21
1940	1940-05-11	1940-09-17
1941	1941-05-17	1941-09-18
1942	1942-04-14	1942-10-01
1943	1943-06-18	1943-10-08
1944	1944-05-13	1944-08-12
1946	1946-06-11	1946-09-14
1947	1947-04-28	1947-09-04
1948	1948-05-18	1948-09-19
1949	1949-05-13	1949-10-06
1950	1950-06-05	1950-09-27
1951	1951-05-09	1951-08-02
1952	1952-04-28	1952-09-28
1953	1953-06-12	1953-10-02
1954	1954-06-24	1954-09-01
1955	1955-05-03	1955-10-11
1956	1956-05-22	1956-09-27
1957	1957-07-02	1957-10-03
1958	1958-05-12	1958-10-14
1959	1959-06-03	1959-09-14
1960	1960-05-13	1960-10-05
1961	1961-05-31	1961-09-01
1962	1962-04-25	1962-09-03
1963	1963-05-31	1963-10-05
1964	1964-05-21	1964-08-20
1965	1965-05-14	1965-08-17
1966	1966-05-22	1966-09-13
1967	1967-05-23	1967-09-12
1968	1968-06-03	1968-09-15
1969	1969-05-27	1969-09-14
1970	1970-05-17	1970-09-20
1971	1971-06-04	1971-09-03
1972	1972-05-16	1972-09-20
1973	1973-05-18	1973-09-01
1974	1974-06-04	1974-08-25
1975	1975-06-25	1975-08-29
1976	1976-06-03	1976-10-01
1977	1977-04-10	1977-08-10
1978	1978-05-23	1978-09-11
1979	1979-05-17	1979-09-27
1980	1980-04-21	1980-09-08

Every Fixed Threshold

Fixed thresholds at Drake
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	46	61	1936	35
35 C (95 F): Days	43	23	1936	6
40 C (104 F): Days	5	9	1936	1
45 C (113 F): Days	1	1	1936	1
90 F (32.2 C): Days	46	44	1936	21
100 F (37.8 C): Days	28	14	1936	1
110 F (43.3 C): Days	1	3	1936	3
0 C (32 F): Ice days (max	46	120	1950	93
0 C (32 F): Frost days (min	47	210	1965	184
-10 C (14 F): Days with min	47	131	1955	95
-20 C (-4 F): Days with min	47	77	1950	45
-30 C (-22 F): Days with min	47	32	1936	8
-40 C (-40 F): Days with min	1	2	1936	2
20 C (68 F): Tropical nights (min	32	7	1936	3
10 mm (0.39 in): Days with 10 mm or more rain	49	19	1954	11
25 mm (0.98 in): Days with 25 mm or more rain	45	6	1952	1
50 mm (1.97 in): Days with 50 mm or more rain	16	3	1937	1
10 cm (3.9 in): Days with 10 cm or more snowfall	6	3	1949	3
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 1934.

Download the Data

Data for Drake 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).

Drake Threshold Days by Year (USC00322298)

Key Facts for Drake Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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