Morris Threshold Days by Year (CA005021920)

19 fixed thresholds counted per year at Morris (CA005021920): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Morris Thresholds

Morris: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1932 with 43.
Morris: days with a maximum temperature at or above 90 F (32.2 C) in 58 years, most in 1939 with 26.
Morris: days with a maximum temperature at or below 0 C (32 F) in 58 years, most in 1965 with 135.
Morris: nights with a minimum temperature at or below 0 C (32 F) in 58 years, most in 1917 with 221.
19 fixed thresholds have at least one qualifying day at Morris.

Days at or above 30 C (86 F)

58 years with a qualifying day

Days per year at Morris with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 1932.

Days at or above 30 C (86 F) per year at Morris
Year	Days	Decade average
1916	13	14.7
1917	25	14.7
1918	6	14.7
1920	28	17.4
1921	25	17.4
1922	14	17.4
1923	28	17.4
1924	7	17.4
1925	15	17.4
1926	14	17.4
1927	8	17.4
1928	6	17.4
1929	29	17.4
1930	35	33.7
1931	28	33.7
1932	43	33.7
1933	36	33.7
1934	30	33.7
1935	15	33.7
1937	33	33.7
1938	40	33.7
1939	43	33.7
1940	23	17.7
1941	30	17.7
1942	6	17.7
1943	17	17.7
1944	13	17.7
1945	11	17.7
1946	11	17.7
1947	18	17.7
1948	20	17.7
1949	28	17.7
1951	6	14.4
1956	12	14.4
1957	20	14.4
1958	13	14.4
1959	21	14.4
1960	21	18.2
1961	38	18.2
1962	10	18.2
1963	30	18.2
1964	12	18.2
1965	8	18.2
1966	21	18.2
1967	19	18.2
1968	3	18.2
1969	20	18.2
1970	25	22.7
1971	11	22.7
1972	22	22.7
1973	18	22.7
1974	27	22.7
1975	19	22.7
1976	37	22.7
1977	18	22.7
1978	27	22.7
1981	15	13.5
1982	12	13.5

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

First to last qualifying date each year at Morris
Year	First date	Last date
1916	1916-07-06	1916-08-19
1917	1917-05-16	1917-09-24
1918	1918-05-05	1918-08-24
1920	1920-06-13	1920-09-14
1921	1921-05-28	1921-09-02
1922	1922-06-05	1922-08-24
1923	1923-05-27	1923-09-15
1924	1924-07-06	1924-08-31
1925	1925-05-19	1925-09-03
1926	1926-05-05	1926-08-27
1927	1927-06-19	1927-09-13
1928	1928-05-23	1928-08-13
1929	1929-06-10	1929-09-22
1930	1930-05-03	1930-09-11
1931	1931-05-15	1931-09-12
1932	1932-05-14	1932-10-01
1933	1933-05-16	1933-08-21
1934	1934-05-06	1934-10-14
1935	1935-07-22	1935-08-24
1937	1937-05-29	1937-09-14
1938	1938-06-03	1938-10-04
1939	1939-05-01	1939-09-19
1940	1940-05-12	1940-09-06
1941	1941-05-05	1941-08-15
1942	1942-07-12	1942-08-21
1943	1943-05-23	1943-10-02
1944	1944-05-24	1944-08-09
1945	1945-06-22	1945-09-06
1946	1946-05-27	1946-08-07
1947	1947-07-03	1947-09-06
1948	1948-05-20	1948-09-05
1949	1949-04-29	1949-08-26
1951	1951-05-24	1951-08-14
1956	1956-05-21	1956-08-28
1957	1957-04-30	1957-08-19
1958	1958-05-12	1958-08-18
1959	1959-05-17	1959-09-08
1960	1960-05-31	1960-09-04
1961	1961-05-20	1961-08-31
1962	1962-06-26	1962-09-02
1963	1963-05-30	1963-09-30
1964	1964-05-21	1964-08-05
1965	1965-05-13	1965-08-23
1966	1966-05-21	1966-09-12
1967	1967-06-29	1967-09-06
1968	1968-06-03	1968-09-14
1969	1969-05-14	1969-09-14
1970	1970-06-04	1970-09-06
1971	1971-06-03	1971-09-02
1972	1972-05-16	1972-08-30
1973	1973-06-02	1973-08-31
1974	1974-06-19	1974-09-26
1975	1975-06-20	1975-08-25
1976	1976-05-09	1976-09-30
1977	1977-04-30	1977-08-09
1978	1978-05-23	1978-09-10
1981	1981-05-21	1981-09-10
1982	1982-04-24	1982-09-09

Every Fixed Threshold

Fixed thresholds at Morris
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	58	43	1932	12
35 C (95 F): Days	44	15	1939	1
40 C (104 F): Days	1	1	1934	1
90 F (32.2 C): Days	58	26	1939	1
100 F (37.8 C): Days	6	3	1929	2
0 C (32 F): Ice days (max	58	135	1965	106
0 C (32 F): Frost days (min	58	221	1917	170
-10 C (14 F): Days with min	58	133	1970	101
-20 C (-4 F): Days with min	58	85	1929	58
-30 C (-22 F): Days with min	58	40	1917	25
-40 C (-40 F): Days with min	8	6	1966	6
20 C (68 F): Tropical nights (min	42	28	1933	1
25 C (77 F): Days with min	4	3	1931	1
10 mm (0.39 in): Days with 10 mm or more rain	28	23	1965	13
25 mm (0.98 in): Days with 25 mm or more rain	27	6	1918	1
50 mm (1.97 in): Days with 50 mm or more rain	9	1	1918	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1966	1
10 cm (3.9 in): Days with 10 cm or more snowfall	27	6	1916	1
25 cm (9.8 in): Days with 25 cm or more snowfall	5	2	1976	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

Data for Morris 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).

Morris Threshold Days by Year (CA005021920)

Key Facts for Morris Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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