Kettle Falls Threshold Days by Year (USC00454178)

17 fixed thresholds counted per year at Kettle Falls (USC00454178): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kettle Falls Thresholds

Kettle Falls: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 1938 with 80.
Kettle Falls: days with a maximum temperature at or above 35 C (95 F) in 24 years, most in 1924 with 34.
Kettle Falls: days with a maximum temperature at or above 90 F (32.2 C) in 24 years, most in 1924 with 60.
Kettle Falls: days with a maximum temperature at or below 0 C (32 F) in 24 years, most in 1922 with 50.
17 fixed thresholds have at least one qualifying day at Kettle Falls.

Days at or above 30 C (86 F)

24 years with a qualifying day

Days per year at Kettle Falls with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 80 in 1938.

Days at or above 30 C (86 F) per year at Kettle Falls
Year	Days	Decade average
1910	57	60.2
1911	48	60.2
1914	54	60.2
1917	59	60.2
1918	78	60.2
1919	65	60.2
1920	57	65.6
1921	55	65.6
1922	79	65.6
1923	60	65.6
1924	79	65.6
1925	77	65.6
1926	71	65.6
1927	50	65.6
1929	62	65.6
1930	63	63.3
1931	72	63.3
1932	53	63.3
1933	50	63.3
1934	77	63.3
1935	55	63.3
1936	64	63.3
1937	56	63.3
1938	80	63.3

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

First to last qualifying date each year at Kettle Falls
Year	First date	Last date
1910	1910-04-23	1910-09-21
1911	1911-05-01	1911-09-12
1914	1914-05-31	1914-09-03
1917	1917-06-14	1917-10-04
1918	1918-05-11	1918-09-28
1919	1919-05-18	1919-09-25
1920	1920-06-20	1920-09-17
1921	1921-05-18	1921-08-30
1922	1922-05-15	1922-09-20
1923	1923-05-08	1923-10-04
1924	1924-05-09	1924-09-15
1925	1925-05-14	1925-09-23
1926	1926-04-15	1926-09-04
1927	1927-05-15	1927-08-23
1929	1929-05-19	1929-09-16
1930	1930-05-15	1930-09-17
1931	1931-04-30	1931-09-03
1932	1932-06-09	1932-09-28
1933	1933-06-02	1933-08-28
1934	1934-04-20	1934-09-05
1935	1935-05-20	1935-10-02
1936	1936-04-17	1936-09-21
1937	1937-05-02	1937-09-18
1938	1938-05-21	1938-09-27

Every Fixed Threshold

Fixed thresholds at Kettle Falls
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	24	80	1938	80
35 C (95 F): Days	24	34	1924	27
40 C (104 F): Days	12	8	1924	2
45 C (113 F): Days	1	1	1924	1
90 F (32.2 C): Days	24	60	1924	52
100 F (37.8 C): Days	22	16	1926	9
110 F (43.3 C): Days	2	3	1926	3
0 C (32 F): Ice days (max	24	50	1922	24
0 C (32 F): Frost days (min	24	185	1929	166
-10 C (14 F): Days with min	24	51	1922	17
-20 C (-4 F): Days with min	18	17	1937	17
-30 C (-22 F): Days with min	5	3	1937	3
20 C (68 F): Tropical nights (min	2	1	1910	1
10 mm (0.39 in): Days with 10 mm or more rain	22	18	1937	8
25 mm (0.98 in): Days with 25 mm or more rain	11	2	1923	1
10 cm (3.9 in): Days with 10 cm or more snowfall	1	5	1933	5
25 cm (9.8 in): Days with 25 cm or more snowfall	1	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 1910.

Download the Data

Data for Kettle Falls 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).

Kettle Falls Threshold Days by Year (USC00454178)

Key Facts for Kettle Falls Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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