Walla Walla 3 W Threshold Days by Year (USC00458926)

16 fixed thresholds counted per year at Walla Walla 3 W (USC00458926): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Walla Walla 3 W Thresholds

Walla Walla 3 W: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 1940 with 87.
Walla Walla 3 W: days with a maximum temperature at or above 35 C (95 F) in 31 years, most in 1961 with 42.
Walla Walla 3 W: days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 1958 with 68.
Walla Walla 3 W: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 1960 with 35.
16 fixed thresholds have at least one qualifying day at Walla Walla 3 W.

Days at or above 30 C (86 F)

31 years with a qualifying day

Days per year at Walla Walla 3 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 1940.

Days at or above 30 C (86 F) per year at Walla Walla 3 W
Year	Days	Decade average
1931	68	68.6
1932	52	68.6
1933	42	68.6
1934	82	68.6
1935	64	68.6
1936	80	68.6
1937	74	68.6
1938	84	68.6
1939	71	68.6
1940	87	68.2
1941	56	68.2
1942	68	68.2
1943	66	68.2
1944	75	68.2
1945	77	68.2
1946	66	68.2
1947	71	68.2
1948	47	68.2
1949	69	68.2
1950	74	65.9
1951	68	65.9
1952	74	65.9
1953	63	65.9
1954	54	65.9
1955	58	65.9
1956	68	65.9
1957	63	65.9
1958	83	65.9
1959	54	65.9
1960	68	74
1961	80	74

For each year, a bar from the first to the last day at Walla Walla 3 W meeting 30 C (86 F).

First to last qualifying date each year at Walla Walla 3 W
Year	First date	Last date
1931	1931-05-11	1931-09-25
1932	1932-06-09	1932-09-16
1933	1933-06-12	1933-09-04
1934	1934-04-20	1934-10-09
1935	1935-05-21	1935-09-20
1936	1936-04-15	1936-09-21
1937	1937-05-02	1937-09-19
1938	1938-05-22	1938-09-23
1939	1939-04-28	1939-09-23
1940	1940-05-09	1940-10-18
1941	1941-05-11	1941-08-23
1942	1942-04-20	1942-09-27
1943	1943-04-14	1943-10-07
1944	1944-05-14	1944-09-25
1945	1945-05-03	1945-09-15
1946	1946-04-25	1946-09-24
1947	1947-05-01	1947-09-25
1948	1948-05-26	1948-09-14
1949	1949-04-17	1949-09-09
1950	1950-05-12	1950-09-23
1951	1951-05-10	1951-09-19
1952	1952-04-18	1952-09-26
1953	1953-05-05	1953-09-19
1954	1954-05-16	1954-09-11
1955	1955-06-06	1955-09-10
1956	1956-04-20	1956-09-25
1957	1957-04-29	1957-09-25
1958	1958-05-16	1958-10-04
1959	1959-05-13	1959-09-13
1960	1960-05-10	1960-09-18
1961	1961-05-19	1961-09-04

Every Fixed Threshold

Fixed thresholds at Walla Walla 3 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	31	87	1940	80
35 C (95 F): Days	31	42	1961	42
40 C (104 F): Days	19	7	1942	7
90 F (32.2 C): Days	31	68	1958	67
100 F (37.8 C): Days	28	17	1961	17
110 F (43.3 C): Days	1	2	1941	2
0 C (32 F): Ice days (max	31	35	1960	15
0 C (32 F): Frost days (min	31	116	1936	71
-10 C (14 F): Days with min	28	32	1937	4
-20 C (-4 F): Days with min	15	12	1950	1
-30 C (-22 F): Days with min	2	4	1950	2
20 C (68 F): Tropical nights (min	27	9	1961	9
25 C (77 F): Days with min	1	1	1958	1
10 mm (0.39 in): Days with 10 mm or more rain	31	14	1940	12
25 mm (0.98 in): Days with 25 mm or more rain	12	3	1942	1
10 cm (3.9 in): Days with 10 cm or more snowfall	16	3	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 1931.

Download the Data

Data for Walla Walla 3 W 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).

Walla Walla 3 W Threshold Days by Year (USC00458926)

Key Facts for Walla Walla 3 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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