Dix Dam Threshold Days by Year (USC00152214)

17 fixed thresholds counted per year at Dix Dam (USC00152214): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dix Dam Thresholds

Dix Dam: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 2011 with 60.
Dix Dam: days with 25 mm (0.98 in) or more of precipitation in 67 years, most in 2018 with 22.
Dix Dam: days with 50 mm (1.97 in) or more of precipitation in 59 years, most in 2025 with 7.
Dix Dam: nights with a minimum temperature at or below 0 C (32 F) in 48 years, most in 1969 with 116.
17 fixed thresholds have at least one qualifying day at Dix Dam.

Days at or above 30 C (86 F)

45 years with a qualifying day

Days per year at Dix Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 101 in 1954.

Days at or above 30 C (86 F) per year at Dix Dam
Year	Days	Decade average
1954	101	74.7
1955	88	74.7
1956	52	74.7
1957	69	74.7
1958	52	74.7
1959	86	74.7
1960	62	61.8
1961	53	61.8
1962	68	61.8
1963	58	61.8
1964	80	61.8
1965	72	61.8
1966	65	61.8
1967	32	61.8
1968	57	61.8
1969	71	61.8
1970	74	62.9
1971	57	62.9
1972	59	62.9
1974	41	62.9
1975	79	62.9
1976	48	62.9
1977	82	62.9
1980	80	66
1981	53	66
1983	83	66
1985	44	66
1988	70	66
1990	52	60.4
1991	73	60.4
1992	24	60.4
1993	70	60.4
1994	51	60.4
1995	59	60.4
1996	52	60.4
1997	52	60.4
1998	86	60.4
1999	85	60.4
2000	61	58.7
2001	58	58.7
2002	83	58.7
2003	41	58.7
2004	37	58.7
2005	90	58.7
2006	41	58.7

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

First to last qualifying date each year at Dix Dam
Year	First date	Last date
1954	1954-05-02	1954-10-05
1955	1955-04-18	1955-09-29
1956	1956-05-12	1956-09-15
1957	1957-05-12	1957-09-22
1958	1958-05-16	1958-09-26
1959	1959-05-02	1959-10-06
1960	1960-04-23	1960-09-23
1961	1961-06-03	1961-10-12
1962	1962-04-30	1962-09-14
1963	1963-04-21	1963-10-20
1964	1964-05-19	1964-09-22
1965	1965-05-08	1965-09-22
1966	1966-05-08	1966-09-03
1967	1967-05-25	1967-09-20
1968	1968-06-06	1968-09-24
1969	1969-05-05	1969-10-14
1970	1970-05-01	1970-09-24
1971	1971-06-03	1971-10-03
1972	1972-05-25	1972-09-23
1974	1974-05-17	1974-08-28
1975	1975-05-20	1975-09-11
1976	1976-06-09	1976-09-09
1977	1977-04-18	1977-09-19
1980	1980-05-29	1980-10-11
1981	1981-06-08	1981-10-01
1983	1983-06-11	1983-10-17
1985	1985-04-22	1985-09-10
1988	1988-05-31	1988-09-11
1990	1990-06-08	1990-09-08
1991	1991-05-15	1991-09-18
1992	1992-06-16	1992-09-09
1993	1993-06-07	1993-09-15
1994	1994-05-23	1994-09-16
1995	1995-06-09	1995-09-14
1996	1996-05-18	1996-09-06
1997	1997-06-20	1997-09-20
1998	1998-05-14	1998-10-06
1999	1999-05-12	1999-09-28
2000	2000-05-06	2000-09-21
2001	2001-05-04	2001-09-14
2002	2002-06-01	2002-10-03
2003	2003-06-24	2003-09-01
2004	2004-05-14	2004-09-24
2005	2005-05-11	2005-10-06
2006	2006-05-27	2006-08-19

Every Fixed Threshold

Fixed thresholds at Dix Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	45	101	1954	41
35 C (95 F): Days	27	43	1954	14
40 C (104 F): Days	2	3	1954	1
90 F (32.2 C): Days	45	79	1954	22
100 F (37.8 C): Days	5	12	1954	2
0 C (32 F): Ice days (max	45	31	1977	4
0 C (32 F): Frost days (min	48	116	1969	73
-10 C (14 F): Days with min	48	34	1977	3
-20 C (-4 F): Days with min	17	6	1970	1
20 C (68 F): Tropical nights (min	48	65	2002	40
25 C (77 F): Days with min	9	3	1980	1
10 mm (0.39 in): Days with 10 mm or more rain	67	60	2011	33
25 mm (0.98 in): Days with 25 mm or more rain	67	22	2018	11
50 mm (1.97 in): Days with 50 mm or more rain	59	7	2025	6
100 mm (3.94 in): Days with 100 mm or more rain	11	1	1996	1
10 cm (3.9 in): Days with 10 cm or more snowfall	9	2	1954	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

Data for Dix Dam 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).

Dix Dam Threshold Days by Year (USC00152214)

Key Facts for Dix Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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