Grovespring 1NE Threshold Days by Year (USC00233483)

17 fixed thresholds counted per year at Grovespring 1NE (USC00233483): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grovespring 1NE Thresholds

Grovespring 1NE: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 1951 with 44.
Grovespring 1NE: days with 25 mm (0.98 in) or more of precipitation in 50 years, most in 1965 with 19.
Grovespring 1NE: days with 50 mm (1.97 in) or more of precipitation in 49 years, most in 1957 with 6.
Grovespring 1NE: days with 10 cm (3.9 in) or more of snowfall in 34 years, most in 2002 with 6.
17 fixed thresholds have at least one qualifying day at Grovespring 1NE.

Days at or above 30 C (86 F)

25 years with a qualifying day

Days per year at Grovespring 1NE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 99 in 1980.

Days at or above 30 C (86 F) per year at Grovespring 1NE
Year	Days	Decade average
1964	76	55.3
1965	55	55.3
1966	55	55.3
1967	38	55.3
1968	51	55.3
1969	57	55.3
1970	64	66.5
1972	61	66.5
1975	74	66.5
1977	67	66.5
1980	99	99
1992	38	59.4
1993	58	59.4
1994	53	59.4
1995	63	59.4
1996	69	59.4
1997	51	59.4
1998	81	59.4
1999	62	59.4
2000	78	59.7
2001	61	59.7
2002	64	59.7
2003	44	59.7
2004	34	59.7
2006	77	59.7

For each year, a bar from the first to the last day at Grovespring 1NE meeting 30 C (86 F).

First to last qualifying date each year at Grovespring 1NE
Year	First date	Last date
1964	1964-05-17	1964-10-17
1965	1965-04-21	1965-09-19
1966	1966-05-08	1966-09-04
1967	1967-05-25	1967-10-04
1968	1968-06-03	1968-09-23
1969	1969-05-29	1969-10-04
1970	1970-04-28	1970-09-21
1972	1972-04-13	1972-09-21
1975	1975-05-20	1975-10-13
1977	1977-05-28	1977-09-19
1980	1980-05-12	1980-10-10
1992	1992-06-16	1992-09-16
1993	1993-06-18	1993-09-13
1994	1994-06-03	1994-10-03
1995	1995-05-14	1995-10-14
1996	1996-04-20	1996-09-23
1997	1997-05-19	1997-10-05
1998	1998-05-14	1998-09-30
1999	1999-06-05	1999-09-26
2000	2000-05-09	2000-10-04
2001	2001-04-10	2001-09-08
2002	2002-05-02	2002-10-04
2003	2003-06-11	2003-08-29
2004	2004-05-21	2004-09-28
2006	2006-04-14	2006-10-05

Every Fixed Threshold

Fixed thresholds at Grovespring 1NE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	25	99	1980	77
35 C (95 F): Days	22	55	1980	11
40 C (104 F): Days	2	9	1980	2
90 F (32.2 C): Days	25	79	1980	41
100 F (37.8 C): Days	8	23	1980	1
0 C (32 F): Ice days (max	25	31	1980	4
0 C (32 F): Frost days (min	29	122	1966	77
-10 C (14 F): Days with min	29	37	1977	5
-20 C (-4 F): Days with min	17	10	1977	2
20 C (68 F): Tropical nights (min	29	55	1980	46
25 C (77 F): Days with min	4	1	1969	1
10 mm (0.39 in): Days with 10 mm or more rain	50	44	1951	26
25 mm (0.98 in): Days with 25 mm or more rain	50	19	1965	8
50 mm (1.97 in): Days with 50 mm or more rain	49	6	1957	2
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1993	1
10 cm (3.9 in): Days with 10 cm or more snowfall	34	6	2002	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

Data for Grovespring 1NE 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Grovespring 1NE Threshold Days by Year (USC00233483)

Key Facts for Grovespring 1NE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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