Hay River Threshold Days by Year (CA002202398)

16 fixed thresholds counted per year at Hay River (CA002202398): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hay River Thresholds

Hay River: nights with a minimum temperature at or below 0 C (32 F) in 47 years, most in 1907 with 279.
Hay River: nights with a minimum temperature at or below -10 C (14 F) in 47 years, most in 1903 with 195.
Hay River: nights with a minimum temperature at or below -20 C (-4 F) in 47 years, most in 1908 with 141.
Hay River: nights with a minimum temperature at or below -30 C (-22 F) in 47 years, most in 1933 with 86.
16 fixed thresholds have at least one qualifying day at Hay River.

Days at or above 30 C (86 F)

31 years with a qualifying day

Days per year at Hay River with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 1906.

Days at or above 30 C (86 F) per year at Hay River
Year	Days	Decade average
1895	4	3.3
1896	3	3.3
1898	5	3.3
1899	1	3.3
1901	4	4.2
1903	3	4.2
1905	4	4.2
1906	9	4.2
1907	1	4.2
1912	1	1
1915	1	1
1916	1	1
1919	1	1
1920	4	2.9
1921	1	2.9
1923	3	2.9
1924	4	2.9
1925	4	2.9
1926	2	2.9
1927	4	2.9
1928	1	2.9
1930	3	2.1
1931	3	2.1
1932	5	2.1
1933	1	2.1
1936	1	2.1
1938	1	2.1
1939	1	2.1
1940	1	2.7
1941	4	2.7
1942	3	2.7

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

First to last qualifying date each year at Hay River
Year	First date	Last date
1895	1895-06-08	1895-07-24
1896	1896-06-06	1896-07-15
1898	1898-05-04	1898-07-17
1899	1899-07-24	1899-07-24
1901	1901-05-24	1901-09-01
1903	1903-06-10	1903-07-17
1905	1905-07-23	1905-09-01
1906	1906-07-02	1906-07-24
1907	1907-06-24	1907-06-24
1912	1912-08-19	1912-08-19
1915	1915-08-11	1915-08-11
1916	1916-07-01	1916-07-01
1919	1919-06-20	1919-06-20
1920	1920-07-16	1920-07-31
1921	1921-07-19	1921-07-19
1923	1923-07-09	1923-07-11
1924	1924-06-29	1924-07-02
1925	1925-06-27	1925-07-31
1926	1926-07-02	1926-07-23
1927	1927-07-21	1927-08-24
1928	1928-07-07	1928-07-07
1930	1930-07-13	1930-08-15
1931	1931-07-31	1931-08-18
1932	1932-08-07	1932-08-26
1933	1933-08-10	1933-08-10
1936	1936-07-11	1936-07-11
1938	1938-06-18	1938-06-18
1939	1939-08-30	1939-08-30
1940	1940-07-02	1940-07-02
1941	1941-07-15	1941-07-19
1942	1942-06-05	1942-06-26

Every Fixed Threshold

Fixed thresholds at Hay River
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	31	9	1906	3
35 C (95 F): Days	1	1	1906	1
90 F (32.2 C): Days	12	5	1906	1
0 C (32 F): Ice days (max	45	186	1909	159
0 C (32 F): Frost days (min	47	279	1907	221
-10 C (14 F): Days with min	47	195	1903	153
-20 C (-4 F): Days with min	47	141	1908	104
-30 C (-22 F): Days with min	47	86	1933	42
-40 C (-40 F): Days with min	46	33	1936	6
20 C (68 F): Tropical nights (min	5	4	1903	1
25 C (77 F): Days with min	1	1	1903	1
10 mm (0.39 in): Days with 10 mm or more rain	33	14	1939	4
25 mm (0.98 in): Days with 25 mm or more rain	16	3	1910	3
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1921	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	8	1939	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	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 1895.

Download the Data

Data for Hay River 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).

Hay River Threshold Days by Year (CA002202398)

Key Facts for Hay River Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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