Grafton Olympic Pool Threshold Days by Year

14 fixed thresholds counted per year at Grafton Olympic Pool (ASN00058130): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grafton Olympic Pool Thresholds

Grafton Olympic Pool: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1989 with 43.
Grafton Olympic Pool: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1988 with 20.
Grafton Olympic Pool: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 2002 with 102.
Grafton Olympic Pool: days with a maximum temperature at or above 35 C (95 F) in 47 years, most in 2002 with 23.
14 fixed thresholds have at least one qualifying day at Grafton Olympic Pool.

Days at or above 30 C (86 F)

47 years with a qualifying day

Days per year at Grafton Olympic Pool with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 102 in 2002.

Days at or above 30 C (86 F) per year at Grafton Olympic Pool
Year	Days	Decade average
1967	44	67
1968	89	67
1969	68	67
1971	43	54.1
1972	41	54.1
1973	70	54.1
1974	42	54.1
1975	58	54.1
1976	36	54.1
1977	65	54.1
1978	62	54.1
1979	70	54.1
1980	97	67.8
1981	72	67.8
1982	66	67.8
1983	76	67.8
1984	54	67.8
1985	66	67.8
1986	67	67.8
1987	75	67.8
1988	66	67.8
1989	39	67.8
1990	72	74
1991	98	74
1992	60	74
1993	82	74
1994	75	74
1995	66	74
1996	69	74
1997	79	74
1998	100	74
1999	39	74
2000	58	77.5
2001	75	77.5
2002	102	77.5
2003	65	77.5
2004	97	77.5
2005	92	77.5
2006	72	77.5
2007	67	77.5
2008	53	77.5
2009	94	77.5
2010	63	71
2011	66	71
2012	68	71
2013	73	71
2014	85	71

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

First to last qualifying date each year at Grafton Olympic Pool
Year	First date	Last date
1967	1967-01-10	1967-12-30
1968	1968-01-01	1968-12-31
1969	1969-01-03	1969-12-30
1971	1971-01-01	1971-12-31
1972	1972-01-22	1972-12-31
1973	1973-01-03	1973-12-31
1974	1974-01-05	1974-12-29
1975	1975-01-01	1975-12-18
1976	1976-01-09	1976-12-30
1977	1977-01-01	1977-12-27
1978	1978-01-03	1978-12-25
1979	1979-01-03	1979-12-31
1980	1980-01-01	1980-12-29
1981	1981-01-04	1981-12-30
1982	1982-01-01	1982-12-30
1983	1983-01-05	1983-12-26
1984	1984-01-03	1984-12-26
1985	1985-01-02	1985-12-31
1986	1986-01-02	1986-12-27
1987	1987-01-01	1987-12-28
1988	1988-01-02	1988-12-26
1989	1989-01-04	1989-12-27
1990	1990-01-02	1990-12-30
1991	1991-01-01	1991-12-29
1992	1992-01-02	1992-12-29
1993	1993-01-04	1993-12-31
1994	1994-01-01	1994-12-29
1995	1995-01-02	1995-12-31
1996	1996-01-01	1996-12-31
1997	1997-01-07	1997-12-27
1998	1998-01-01	1998-12-30
1999	1999-01-03	1999-12-29
2000	2000-01-04	2000-12-26
2001	2001-01-04	2001-12-31
2002	2002-01-01	2002-12-31
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-27
2005	2005-01-01	2005-12-31
2006	2006-01-01	2006-12-25
2007	2007-01-07	2007-12-22
2008	2008-01-06	2008-12-31
2009	2009-01-01	2009-12-29
2010	2010-01-01	2010-12-31
2011	2011-01-02	2011-12-20
2012	2012-01-04	2012-12-31
2013	2013-01-01	2013-12-31
2014	2014-01-02	2014-12-31

Every Fixed Threshold

Fixed thresholds at Grafton Olympic Pool
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	47	102	2002	85
35 C (95 F): Days	47	23	2002	16
40 C (104 F): Days	18	4	2004	1
90 F (32.2 C): Days	47	52	2004	40
100 F (37.8 C): Days	41	11	2002	4
110 F (43.3 C): Days	5	1	1968	1
0 C (32 F): Frost days (min	15	7	1968	1
20 C (68 F): Tropical nights (min	45	66	1981	61
25 C (77 F): Days with min	6	2	2004	2
10 mm (0.39 in): Days with 10 mm or more rain	48	43	1989	25
25 mm (0.98 in): Days with 25 mm or more rain	48	20	1988	6
50 mm (1.97 in): Days with 50 mm or more rain	43	8	2009	4
100 mm (3.94 in): Days with 100 mm or more rain	20	2	1967	2
200 mm (7.87 in): Days with 200 mm or more rain	4	1	1974	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1967.

Download the Data

Data for Grafton Olympic Pool 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).

Grafton Olympic Pool Threshold Days by Year

Key Facts for Grafton Olympic Pool Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related