Denham Threshold Days by Year (ASN00006044)

13 fixed thresholds counted per year at Denham (ASN00006044): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Denham Thresholds

Denham: days with 10 mm (0.39 in) or more of precipitation in 106 years, most in 1963 with 13.
Denham: days with 25 mm (0.98 in) or more of precipitation in 94 years, most in 1921 with 7.
Denham: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1908 with 3.
Denham: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 2011 with 123.
13 fixed thresholds have at least one qualifying day at Denham.

Days at or above 30 C (86 F)

34 years with a qualifying day

Days per year at Denham with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 123 in 2011.

Days at or above 30 C (86 F) per year at Denham
Year	Days	Decade average
1989	79	79
1990	52	72
1991	44	72
1992	54	72
1993	48	72
1994	72	72
1995	85	72
1996	92	72
1997	82	72
1998	93	72
1999	98	72
2000	98	76.9
2001	74	76.9
2002	78	76.9
2003	75	76.9
2004	71	76.9
2005	57	76.9
2006	83	76.9
2007	67	76.9
2008	78	76.9
2009	88	76.9
2010	82	93.9
2011	123	93.9
2012	104	93.9
2013	113	93.9
2014	91	93.9
2015	113	93.9
2016	69	93.9
2017	98	93.9
2018	74	93.9
2019	72	93.9
2020	93	101.3
2021	111	101.3
2022	100	101.3

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

First to last qualifying date each year at Denham
Year	First date	Last date
1989	1989-01-03	1989-12-19
1990	1990-01-19	1990-12-11
1991	1991-01-05	1991-12-11
1992	1992-01-06	1992-12-17
1993	1993-01-04	1993-12-17
1994	1994-01-08	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-30
1998	1998-01-03	1998-12-31
1999	1999-01-02	1999-12-31
2000	2000-01-01	2000-12-30
2001	2001-01-06	2001-12-31
2002	2002-01-02	2002-12-31
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-21
2005	2005-01-03	2005-12-17
2006	2006-01-05	2006-12-31
2007	2007-01-06	2007-12-30
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-28
2010	2010-01-02	2010-12-29
2011	2011-01-01	2011-12-28
2012	2012-01-01	2012-12-31
2013	2013-01-01	2013-12-28
2014	2014-01-05	2014-12-29
2015	2015-01-04	2015-12-31
2016	2016-01-13	2016-12-21
2017	2017-01-01	2017-12-31
2018	2018-01-02	2018-12-26
2019	2019-01-06	2019-12-14
2020	2020-01-04	2020-12-31
2021	2021-01-01	2021-12-30
2022	2022-01-02	2022-12-30

Every Fixed Threshold

Fixed thresholds at Denham
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	34	123	2011	100
35 C (95 F): Days	34	45	2011	33
40 C (104 F): Days	33	14	2014	12
45 C (113 F): Days	6	2	1989	1
90 F (32.2 C): Days	34	82	2011	51
100 F (37.8 C): Days	34	25	1996	17
110 F (43.3 C): Days	13	3	1996	2
20 C (68 F): Tropical nights (min	33	168	2010	123
25 C (77 F): Days with min	32	62	2011	29
10 mm (0.39 in): Days with 10 mm or more rain	106	13	1963	10
25 mm (0.98 in): Days with 25 mm or more rain	94	7	1921	4
50 mm (1.97 in): Days with 50 mm or more rain	41	3	1908	1
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1908	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.

Download the Data

Data for Denham 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).

Denham Threshold Days by Year (ASN00006044)

Key Facts for Denham Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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