Merritt Threshold Days by Year (CA001125070)

15 fixed thresholds counted per year at Merritt (CA001125070): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Merritt Thresholds

Merritt: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1928 with 24.
Merritt: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 1936 with 68.
Merritt: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 1950 with 214.
Merritt: nights with a minimum temperature at or below -10 C (14 F) in 37 years, most in 1949 with 81.
15 fixed thresholds have at least one qualifying day at Merritt.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Merritt with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1928.

Days at or above 30 C (86 F) per year at Merritt
Year	Days	Decade average
1919	8	8
1920	21	17.8
1921	5	17.8
1922	18	17.8
1923	19	17.8
1924	21	17.8
1925	21	17.8
1926	17	17.8
1927	13	17.8
1928	24	17.8
1929	19	17.8
1930	17	12.5
1931	15	12.5
1932	6	12.5
1933	13	12.5
1934	16	12.5
1935	8	12.5
1936	10	12.5
1937	7	12.5
1938	17	12.5
1939	16	12.5
1940	13	10.3
1941	20	10.3
1942	19	10.3
1943	5	10.3
1944	8	10.3
1945	13	10.3
1946	7	10.3
1947	4	10.3
1948	7	10.3
1949	7	10.3
1950	11	8.5
1951	6	8.5
1963	13	9.3
1964	5	9.3
1965	13	9.3
1966	6	9.3

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

First to last qualifying date each year at Merritt
Year	First date	Last date
1919	1919-07-10	1919-08-17
1920	1920-06-30	1920-08-21
1921	1921-06-11	1921-08-14
1922	1922-06-01	1922-08-29
1923	1923-06-28	1923-08-20
1924	1924-05-12	1924-09-09
1925	1925-06-19	1925-08-20
1926	1926-05-11	1926-08-27
1927	1927-06-21	1927-08-15
1928	1928-05-20	1928-09-05
1929	1929-07-12	1929-09-15
1930	1930-06-15	1930-08-14
1931	1931-06-07	1931-08-23
1932	1932-06-11	1932-08-17
1933	1933-07-15	1933-08-27
1934	1934-05-27	1934-08-27
1935	1935-07-12	1935-08-12
1936	1936-05-26	1936-08-04
1937	1937-06-27	1937-07-27
1938	1938-06-20	1938-08-26
1939	1939-06-29	1939-08-22
1940	1940-06-18	1940-09-11
1941	1941-06-11	1941-08-21
1942	1942-06-30	1942-08-23
1943	1943-07-20	1943-07-26
1944	1944-06-10	1944-09-10
1945	1945-07-07	1945-08-15
1946	1946-07-19	1946-08-22
1947	1947-07-17	1947-08-02
1948	1948-05-27	1948-07-17
1949	1949-07-09	1949-08-01
1950	1950-07-03	1950-09-03
1951	1951-07-11	1951-08-02
1963	1963-05-21	1963-09-08
1964	1964-07-07	1964-08-11
1965	1965-07-24	1965-08-19
1966	1966-05-05	1966-09-04

Every Fixed Threshold

Fixed thresholds at Merritt
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	24	1928	6
35 C (95 F): Days	16	6	1926	1
90 F (32.2 C): Days	33	16	1920	2
100 F (37.8 C): Days	1	2	1941	2
0 C (32 F): Ice days (max	37	68	1936	33
0 C (32 F): Frost days (min	37	214	1950	171
-10 C (14 F): Days with min	37	81	1949	30
-20 C (-4 F): Days with min	36	34	1950	6
-30 C (-22 F): Days with min	17	22	1950	1
-40 C (-40 F): Days with min	1	2	1950	2
10 mm (0.39 in): Days with 10 mm or more rain	36	9	1922	4
25 mm (0.98 in): Days with 25 mm or more rain	17	2	1933	1
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1938	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	5	1921	3
25 cm (9.8 in): Days with 25 cm or more snowfall	5	2	1933	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.

Download the Data

Data for Merritt 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).

Merritt Threshold Days by Year (CA001125070)

Key Facts for Merritt Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related