Hector 4 SE Threshold Days by Year (USC00033235)

17 fixed thresholds counted per year at Hector 4 SE (USC00033235): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hector 4 SE Thresholds

Hector 4 SE: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1949 with 45.
Hector 4 SE: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1984 with 25.
Hector 4 SE: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1968 with 8.
Hector 4 SE: days with a maximum temperature at or above 30 C (86 F) in 11 years, most in 1980 with 125.
17 fixed thresholds have at least one qualifying day at Hector 4 SE.

Days at or above 30 C (86 F)

11 years with a qualifying day

Days per year at Hector 4 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 125 in 1980.

For each year, a bar from the first to the last day at Hector 4 SE meeting 30 C (86 F).

First to last qualifying date each year at Hector 4 SE
Year	First date	Last date
1968	1968-05-14	1968-10-14
1969	1969-05-20	1969-10-05
1975	1975-05-20	1975-10-14
1976	1976-05-22	1976-10-13
1977	1977-05-07	1977-10-02
1978	1978-05-20	1978-10-22
1980	1980-04-23	1980-10-10
1983	1983-06-03	1983-10-09
1984	1984-05-14	1984-11-10
1986	1986-05-08	1986-10-03
1987	1987-04-18	1987-09-26

Every Fixed Threshold

Fixed thresholds at Hector 4 SE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	11	125	1980	114
35 C (95 F): Days	11	86	1980	37
40 C (104 F): Days	6	35	1980	10
90 F (32.2 C): Days	11	107	1980	90
100 F (37.8 C): Days	9	64	1980	6
110 F (43.3 C): Days	2	2	1986	2
0 C (32 F): Ice days (max	10	11	1983	2
0 C (32 F): Frost days (min	11	103	1983	86
-10 C (14 F): Days with min	11	17	1978	2
-20 C (-4 F): Days with min	3	2	1977	1
20 C (68 F): Tropical nights (min	11	62	1977	25
25 C (77 F): Days with min	1	0	n/a	2
10 mm (0.39 in): Days with 10 mm or more rain	28	45	1949	33
25 mm (0.98 in): Days with 25 mm or more rain	28	25	1984	18
50 mm (1.97 in): Days with 50 mm or more rain	27	8	1968	3
100 mm (3.94 in): Days with 100 mm or more rain	9	1	1954	1
10 cm (3.9 in): Days with 10 cm or more snowfall	8	1	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

Data for Hector 4 SE 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).

Year	Days	Decade average
1968	90	93.5
1969	97	93.5
1975	99	100.8
1976	85	100.8
1977	116	100.8
1978	103	100.8
1980	125	110
1983	110	110
1984	99	110
1986	102	110
1987	114	110

Hector 4 SE Threshold Days by Year (USC00033235)

Key Facts for Hector 4 SE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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