Grouse Creek Threshold Days by Year

16 fixed thresholds counted per year at Grouse Creek (USC00423486): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grouse Creek Thresholds

Grouse Creek: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1963 with 15.
Grouse Creek: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 1988 with 77.
Grouse Creek: days with a maximum temperature at or above 90 F (32.2 C) in 32 years, most in 1990 with 46.
Grouse Creek: days with a maximum temperature at or below 0 C (32 F) in 32 years, most in 1985 with 59.
16 fixed thresholds have at least one qualifying day at Grouse Creek.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Grouse Creek with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 77 in 1988.

Days at or above 30 C (86 F) per year at Grouse Creek
Year	Days	Decade average
1960	55	51.3
1961	64	51.3
1962	40	51.3
1963	51	51.3
1967	54	51.3
1968	44	51.3
1983	29	42.4
1984	22	42.4
1985	44	42.4
1986	39	42.4
1987	34	42.4
1988	77	42.4
1989	52	42.4
1990	69	52.6
1991	58	52.6
1992	51	52.6
1993	20	52.6
1994	71	52.6
1995	48	52.6
1996	68	52.6
1997	43	52.6
1998	52	52.6
1999	46	52.6
2000	63	59.1
2001	73	59.1
2002	60	59.1
2003	76	59.1
2004	48	59.1
2005	48	59.1
2006	59	59.1
2009	46	59.1
2010	54	54

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

First to last qualifying date each year at Grouse Creek
Year	First date	Last date
1960	1960-05-11	1960-09-12
1961	1961-06-11	1961-08-28
1962	1962-06-23	1962-09-05
1963	1963-07-03	1963-10-04
1967	1967-05-23	1967-09-05
1968	1968-06-03	1968-09-14
1983	1983-05-29	1983-09-02
1984	1984-06-28	1984-09-05
1985	1985-06-08	1985-08-31
1986	1986-06-01	1986-09-06
1987	1987-06-14	1987-09-22
1988	1988-06-05	1988-09-10
1989	1989-06-15	1989-09-06
1990	1990-06-10	1990-09-16
1991	1991-06-12	1991-09-06
1992	1992-05-25	1992-08-29
1993	1993-06-27	1993-09-12
1994	1994-06-12	1994-09-28
1995	1995-06-26	1995-09-17
1996	1996-06-08	1996-10-09
1997	1997-06-27	1997-09-11
1998	1998-06-30	1998-09-05
1999	1999-06-16	1999-09-10
2000	2000-06-05	2000-09-17
2001	2001-05-24	2001-10-02
2002	2002-06-01	2002-09-05
2003	2003-05-24	2003-10-02
2004	2004-06-06	2004-09-12
2005	2005-06-21	2005-09-08
2006	2006-05-18	2006-09-14
2009	2009-05-19	2009-09-27
2010	2010-06-25	2010-10-03

Every Fixed Threshold

Fixed thresholds at Grouse Creek
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	77	1988	54
35 C (95 F): Days	26	22	2003	3
40 C (104 F): Days	1	1	2002	1
90 F (32.2 C): Days	32	46	1990	26
100 F (37.8 C): Days	10	4	2002	1
0 C (32 F): Ice days (max	32	59	1985	28
0 C (32 F): Frost days (min	30	210	1999	202
-10 C (14 F): Days with min	30	93	1993	50
-20 C (-4 F): Days with min	27	16	1984	5
-30 C (-22 F): Days with min	2	3	1963	3
20 C (68 F): Tropical nights (min	6	1	1990	1
10 mm (0.39 in): Days with 10 mm or more rain	44	15	1963	5
25 mm (0.98 in): Days with 25 mm or more rain	12	5	2002	1
50 mm (1.97 in): Days with 50 mm or more rain	4	4	2002	4
10 cm (3.9 in): Days with 10 cm or more snowfall	30	8	1983	2
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1983	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Grouse Creek 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Grouse Creek Threshold Days by Year

Key Facts for Grouse Creek Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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