Spring Grove Threshold Days by Year (USC00368379)

12 fixed thresholds counted per year at Spring Grove (USC00368379): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Spring Grove Thresholds

Spring Grove: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 2018 with 53.
Spring Grove: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 2018 with 19.
Spring Grove: days with 50 mm (1.97 in) or more of precipitation in 65 years, most in 2018 with 7.
Spring Grove: days with 10 cm (3.9 in) or more of snowfall in 64 years, most in 1961 with 7.
12 fixed thresholds have at least one qualifying day at Spring Grove.

Nights at or below 0 C (32 F)

12 years with a qualifying day

Days per year at Spring Grove with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line.

Nights at or below 0 C (32 F) per year at Spring Grove
Year	Days	Decade average
1936	74	67.5
1937	67	67.5
1938	68	67.5
1939	61	67.5
1940	87	116.3
1941	121	116.3
1942	132	116.3
1943	129	116.3
1944	124	116.3
1945	108	116.3
1946	102	116.3
1947	127	116.3

For each year, a bar from the first to the last day at Spring Grove meeting 0 C (32 F).

First to last qualifying date each year at Spring Grove
Year	First date	Last date
1936	1936-01-01	1936-12-23
1937	1937-01-01	1937-12-24
1938	1938-01-04	1938-12-31
1939	1939-01-07	1939-12-31
1940	1940-01-01	1940-12-25
1941	1941-01-04	1941-12-31
1942	1942-01-01	1942-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-31
1945	1945-01-01	1945-12-30
1946	1946-01-01	1946-12-31
1947	1947-01-01	1947-12-31

Every Fixed Threshold

Fixed thresholds at Spring Grove
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Frost days (min	12	0	n/a	127
-10 C (14 F): Days with min	12	0	n/a	10
-20 C (-4 F): Days with min	1	0	n/a	1
20 C (68 F): Tropical nights (min	12	0	n/a	7
25 C (77 F): Days with min	3	0	n/a	4
10 mm (0.39 in): Days with 10 mm or more rain	85	53	2018	34
25 mm (0.98 in): Days with 25 mm or more rain	85	19	2018	7
50 mm (1.97 in): Days with 50 mm or more rain	65	7	2018	1
100 mm (3.94 in): Days with 100 mm or more rain	9	1	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	7	1961	1
25 cm (9.8 in): Days with 25 cm or more snowfall	20	3	1958	2
50 cm (19.7 in): Days with 50 cm or more snowfall	2	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 1936.

Download the Data

Data for Spring Grove 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).

Spring Grove Threshold Days by Year (USC00368379)

Key Facts for Spring Grove Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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