Glenrock 14 SSE Threshold Days by Year (USC00483960)

17 fixed thresholds counted per year at Glenrock 14 SSE (USC00483960): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glenrock 14 SSE Thresholds

Glenrock 14 SSE: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1983 with 17.
Glenrock 14 SSE: days with 10 cm (3.9 in) or more of snowfall in 36 years, most in 1970 with 24.
Glenrock 14 SSE: days with 25 cm (9.8 in) or more of snowfall in 33 years, most in 1971 with 7.
Glenrock 14 SSE: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1971 with 6.
17 fixed thresholds have at least one qualifying day at Glenrock 14 SSE.

Days at or above 30 C (86 F)

21 years with a qualifying day

Days per year at Glenrock 14 SSE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 27 in 1985.

Days at or above 30 C (86 F) per year at Glenrock 14 SSE
Year	Days	Decade average
1964	22	14.5
1965	6	14.5
1966	25	14.5
1967	8	14.5
1968	8	14.5
1969	18	14.5
1970	10	12.2
1971	10	12.2
1973	2	12.2
1974	16	12.2
1975	15	12.2
1976	12	12.2
1977	12	12.2
1978	16	12.2
1979	17	12.2
1981	19	19.3
1982	18	19.3
1983	25	19.3
1984	13	19.3
1985	27	19.3
1986	14	19.3

For each year, a bar from the first to the last day at Glenrock 14 SSE meeting 30 C (86 F).

First to last qualifying date each year at Glenrock 14 SSE
Year	First date	Last date
1964	1964-05-20	1964-08-18
1965	1965-07-21	1965-08-13
1966	1966-06-27	1966-08-29
1967	1967-07-21	1967-09-02
1968	1968-07-14	1968-08-07
1969	1969-05-27	1969-08-28
1970	1970-06-27	1970-08-17
1971	1971-06-23	1971-09-02
1973	1973-08-16	1973-08-20
1974	1974-06-19	1974-08-19
1975	1975-07-01	1975-09-01
1976	1976-06-20	1976-09-05
1977	1977-06-04	1977-09-05
1978	1978-06-24	1978-09-07
1979	1979-06-13	1979-09-09
1981	1981-06-23	1981-08-30
1982	1982-06-29	1982-09-04
1983	1983-06-25	1983-09-07
1984	1984-06-28	1984-08-31
1985	1985-06-07	1985-08-31
1986	1986-06-17	1986-08-29

Every Fixed Threshold

Fixed thresholds at Glenrock 14 SSE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	21	27	1985	14
35 C (95 F): Days	2	1	1979	1
90 F (32.2 C): Days	17	9	1964	2
0 C (32 F): Ice days (max	21	63	1979	21
0 C (32 F): Frost days (min	22	225	1970	187
-10 C (14 F): Days with min	22	77	1967	40
-20 C (-4 F): Days with min	22	21	1965	11
-30 C (-22 F): Days with min	15	7	1983	1
-40 C (-40 F): Days with min	1	1	1983	1
20 C (68 F): Tropical nights (min	5	3	1964	1
10 mm (0.39 in): Days with 10 mm or more rain	36	17	1983	10
25 mm (0.98 in): Days with 25 mm or more rain	27	6	1971	2
50 mm (1.97 in): Days with 50 mm or more rain	6	1	1962	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1965	1
10 cm (3.9 in): Days with 10 cm or more snowfall	36	24	1970	7
25 cm (9.8 in): Days with 25 cm or more snowfall	33	7	1971	4
50 cm (19.7 in): Days with 50 cm or more snowfall	9	2	1973	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 Glenrock 14 SSE 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).

Glenrock 14 SSE Threshold Days by Year (USC00483960)

Key Facts for Glenrock 14 SSE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related