Waiawa 943 Threshold Days by Year

8 fixed thresholds counted per year at Waiawa 943 (USC00519253): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Waiawa 943 Thresholds

Waiawa 943: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1916 with 48.
Waiawa 943: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1916 with 20.
Waiawa 943: days with 50 mm (1.97 in) or more of precipitation in 51 years, most in 1916 with 7.
Waiawa 943: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 1934 with 148.
8 fixed thresholds have at least one qualifying day at Waiawa 943.

Days at or above 30 C (86 F)

24 years with a qualifying day

Days per year at Waiawa 943 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 148 in 1934.

Days at or above 30 C (86 F) per year at Waiawa 943
Year	Days	Decade average
1905	9	11
1906	27	11
1908	2	11
1909	6	11
1910	11	38.2
1911	34	38.2
1912	53	38.2
1913	82	38.2
1914	56	38.2
1915	59	38.2
1916	7	38.2
1917	17	38.2
1918	13	38.2
1919	50	38.2
1922	32	22.8
1924	3	22.8
1925	22	22.8
1926	18	22.8
1929	39	22.8
1930	25	45.2
1931	8	45.2
1932	14	45.2
1933	31	45.2
1934	148	45.2

For each year, a bar from the first to the last day at Waiawa 943 meeting 30 C (86 F).

First to last qualifying date each year at Waiawa 943
Year	First date	Last date
1905	1905-06-11	1905-10-17
1906	1906-06-15	1906-11-28
1908	1908-08-29	1908-10-12
1909	1909-09-06	1909-11-19
1910	1910-07-29	1910-11-14
1911	1911-05-28	1911-10-19
1912	1912-06-01	1912-10-17
1913	1913-07-07	1913-12-27
1914	1914-04-13	1914-11-18
1915	1915-02-25	1915-09-24
1916	1916-02-03	1916-10-09
1917	1917-08-24	1917-11-13
1918	1918-06-06	1918-09-29
1919	1919-04-01	1919-12-16
1922	1922-07-05	1922-12-29
1924	1924-06-10	1924-11-06
1925	1925-07-17	1925-10-27
1926	1926-05-10	1926-07-23
1929	1929-02-25	1929-11-09
1930	1930-07-06	1930-10-24
1931	1931-05-16	1931-10-09
1932	1932-09-01	1932-11-02
1933	1933-06-15	1933-12-26
1934	1934-01-21	1934-12-30

Every Fixed Threshold

Fixed thresholds at Waiawa 943
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	24	148	1934	148
35 C (95 F): Days	1	4	1934	4
90 F (32.2 C): Days	9	33	1934	33
20 C (68 F): Tropical nights (min	21	121	1930	21
10 mm (0.39 in): Days with 10 mm or more rain	62	48	1916	9
25 mm (0.98 in): Days with 25 mm or more rain	62	20	1916	5
50 mm (1.97 in): Days with 50 mm or more rain	51	7	1916	2
100 mm (3.94 in): Days with 100 mm or more rain	14	4	1916	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1905.

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Data for Waiawa 943 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Waiawa 943 Threshold Days by Year

Key Facts for Waiawa 943 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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