Chipman Threshold Days by Year (CA008101100)

17 fixed thresholds counted per year at Chipman (CA008101100): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chipman Thresholds

Chipman: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1954 with 57.
Chipman: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1954 with 19.
Chipman: days with 10 cm (3.9 in) or more of snowfall in 34 years, most in 1964 with 19.
Chipman: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 1947 with 36.
17 fixed thresholds have at least one qualifying day at Chipman.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Chipman with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 1947.

Days at or above 30 C (86 F) per year at Chipman
Year	Days	Decade average
1933	5	13.3
1934	5	13.3
1935	16	13.3
1936	4	13.3
1937	35	13.3
1938	9	13.3
1939	19	13.3
1940	17	20.1
1941	14	20.1
1942	11	20.1
1943	4	20.1
1944	27	20.1
1945	28	20.1
1946	25	20.1
1947	36	20.1
1948	13	20.1
1949	26	20.1
1950	8	12.9
1951	16	12.9
1952	27	12.9
1954	5	12.9
1955	24	12.9
1956	6	12.9
1957	7	12.9
1958	5	12.9
1959	18	12.9
1960	20	10.7
1961	14	10.7
1962	7	10.7
1963	12	10.7
1964	8	10.7
1965	9	10.7
1966	5	10.7

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

First to last qualifying date each year at Chipman
Year	First date	Last date
1933	1933-06-29	1933-08-23
1934	1934-07-06	1934-07-20
1935	1935-07-04	1935-08-21
1936	1936-06-07	1936-07-10
1937	1937-05-30	1937-09-03
1938	1938-06-01	1938-08-16
1939	1939-06-20	1939-09-16
1940	1940-05-27	1940-08-18
1941	1941-06-19	1941-08-07
1942	1942-06-11	1942-09-18
1943	1943-06-24	1943-07-13
1944	1944-05-26	1944-08-18
1945	1945-07-01	1945-09-09
1946	1946-06-24	1946-09-20
1947	1947-06-22	1947-09-13
1948	1948-06-27	1948-09-08
1949	1949-06-03	1949-08-27
1950	1950-05-24	1950-08-09
1951	1951-06-19	1951-09-13
1952	1952-06-23	1952-08-30
1954	1954-06-20	1954-08-25
1955	1955-05-22	1955-08-22
1956	1956-06-14	1956-08-18
1957	1957-06-16	1957-07-27
1958	1958-07-23	1958-08-06
1959	1959-05-26	1959-09-08
1960	1960-05-28	1960-09-09
1961	1961-05-14	1961-09-11
1962	1962-05-19	1962-08-26
1963	1963-06-02	1963-07-29
1964	1964-05-24	1964-07-28
1965	1965-06-09	1965-09-22
1966	1966-05-24	1966-08-19

Every Fixed Threshold

Fixed thresholds at Chipman
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	36	1947	5
35 C (95 F): Days	13	10	1944	1
90 F (32.2 C): Days	26	20	1947	2
100 F (37.8 C): Days	3	3	1935	1
0 C (32 F): Ice days (max	33	91	1942	63
0 C (32 F): Frost days (min	33	220	1947	185
-10 C (14 F): Days with min	33	110	1933	61
-20 C (-4 F): Days with min	33	61	1934	15
-30 C (-22 F): Days with min	31	25	1934	2
-40 C (-40 F): Days with min	4	4	1935	1
20 C (68 F): Tropical nights (min	12	3	1947	1
10 mm (0.39 in): Days with 10 mm or more rain	34	57	1954	36
25 mm (0.98 in): Days with 25 mm or more rain	34	19	1954	5
50 mm (1.97 in): Days with 50 mm or more rain	19	3	1954	1
10 cm (3.9 in): Days with 10 cm or more snowfall	34	19	1964	10
25 cm (9.8 in): Days with 25 cm or more snowfall	27	6	1954	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1949	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1933.

Download the Data

Data for Chipman 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).

Chipman Threshold Days by Year (CA008101100)

Key Facts for Chipman Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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