McCook Ridge Threshold Days by Year (USR0000MCCO)

11 fixed thresholds counted per year at McCook Ridge (USR0000MCCO): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for McCook Ridge Thresholds

McCook Ridge: days with a maximum temperature at or above 30 C (86 F) in 38 years, most in 2020 with 66.
McCook Ridge: days with a maximum temperature at or above 90 F (32.2 C) in 38 years, most in 2003 with 41.
McCook Ridge: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 1985 with 52.
McCook Ridge: nights with a minimum temperature at or below 0 C (32 F) in 38 years, most in 2008 with 182.
11 fixed thresholds have at least one qualifying day at McCook Ridge.

Days at or above 30 C (86 F)

38 years with a qualifying day

Days per year at McCook Ridge with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 66 in 2020.

Days at or above 30 C (86 F) per year at McCook Ridge
Year	Days	Decade average
1985	22	23.5
1986	13	23.5
1988	32	23.5
1989	27	23.5
1990	31	28.7
1991	12	28.7
1992	16	28.7
1994	41	28.7
1995	30	28.7
1996	48	28.7
1997	20	28.7
1998	36	28.7
1999	24	28.7
2000	50	50.8
2001	59	50.8
2002	62	50.8
2003	59	50.8
2004	37	50.8
2005	32	50.8
2006	47	50.8
2007	64	50.8
2008	57	50.8
2009	41	50.8
2010	41	43.4
2011	32	43.4
2014	30	43.4
2015	39	43.4
2016	47	43.4
2017	49	43.4
2018	59	43.4
2019	50	43.4
2020	66	56.6
2021	62	56.6
2022	53	56.6
2023	38	56.6
2024	55	56.6
2025	58	56.6
2026	64	56.6

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

First to last qualifying date each year at McCook Ridge
Year	First date	Last date
1985	1985-06-07	1985-08-31
1986	1986-06-27	1986-08-18
1988	1988-06-16	1988-09-07
1989	1989-06-15	1989-08-08
1990	1990-06-18	1990-09-15
1991	1991-07-04	1991-08-31
1992	1992-06-22	1992-08-21
1994	1994-06-12	1994-08-26
1995	1995-07-07	1995-09-04
1996	1996-05-13	1996-09-04
1997	1997-06-19	1997-08-24
1998	1998-06-28	1998-09-07
1999	1999-06-19	1999-08-23
2000	2000-05-23	2000-09-16
2001	2001-06-01	2001-09-25
2002	2002-05-30	2002-09-05
2003	2003-05-27	2003-09-04
2004	2004-06-03	2004-09-02
2005	2005-05-23	2005-08-29
2006	2006-06-02	2006-08-23
2007	2007-06-14	2007-09-02
2008	2008-06-15	2008-08-30
2009	2009-05-18	2009-09-01
2010	2010-06-05	2010-09-30
2011	2011-06-23	2011-08-31
2014	2014-06-25	2014-08-18
2015	2015-06-17	2015-09-12
2016	2016-06-05	2016-09-19
2017	2017-06-04	2017-09-07
2018	2018-06-04	2018-08-17
2019	2019-06-28	2019-09-05
2020	2020-06-01	2020-09-07
2021	2021-06-03	2021-09-10
2022	2022-06-08	2022-09-08
2023	2023-06-26	2023-08-31
2024	2024-06-06	2024-09-29
2025	2025-05-31	2025-09-03
2026	2026-06-04	2026-09-13

Every Fixed Threshold

Fixed thresholds at McCook Ridge
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	38	66	2020	64
35 C (95 F): Days	26	14	2003	8
90 F (32.2 C): Days	38	41	2003	36
100 F (37.8 C): Days	2	2	2002	1
0 C (32 F): Ice days (max	38	52	1985	34
0 C (32 F): Frost days (min	38	182	2008	69
-10 C (14 F): Days with min	38	59	1988	42
-20 C (-4 F): Days with min	26	8	1990	9
-30 C (-22 F): Days with min	1	2	1990	2
20 C (68 F): Tropical nights (min	27	5	1985	5
25 C (77 F): Days with min	1	1	1985	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1985.

Download the Data

Data for McCook Ridge 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).

McCook Ridge Threshold Days by Year (USR0000MCCO)

Key Facts for McCook Ridge Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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