Grass Creek Threshold Days by Year (USC00484036)

19 fixed thresholds counted per year at Grass Creek (USC00484036): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grass Creek Thresholds

Grass Creek: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1957 with 11.
Grass Creek: days with 25 mm (0.98 in) or more of precipitation in 18 years, most in 1957 with 4.
Grass Creek: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1988 with 76.
Grass Creek: days with a maximum temperature at or above 90 F (32.2 C) in 14 years, most in 1988 with 48.
19 fixed thresholds have at least one qualifying day at Grass Creek.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Grass Creek with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 1988.

Days at or above 30 C (86 F) per year at Grass Creek
Year	Days	Decade average
1969	41	41
1970	44	32.5
1971	44	32.5
1972	22	32.5
1973	19	32.5
1977	24	32.5
1979	42	32.5
1980	35	43.6
1981	43	43.6
1982	44	43.6
1986	33	43.6
1987	34	43.6
1988	76	43.6
1989	40	43.6

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

First to last qualifying date each year at Grass Creek
Year	First date	Last date
1969	1969-05-26	1969-09-03
1970	1970-06-21	1970-08-26
1971	1971-06-16	1971-09-13
1972	1972-06-29	1972-08-19
1973	1973-06-09	1973-08-31
1977	1977-06-01	1977-08-02
1979	1979-06-03	1979-09-30
1980	1980-06-22	1980-09-07
1981	1981-06-26	1981-09-19
1982	1982-06-13	1982-09-09
1986	1986-06-02	1986-09-01
1987	1987-05-15	1987-09-27
1988	1988-05-16	1988-09-10
1989	1989-06-15	1989-09-29

Every Fixed Threshold

Fixed thresholds at Grass Creek
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	76	1988	40
35 C (95 F): Days	10	12	1988	11
40 C (104 F): Days	1	1	1970	1
90 F (32.2 C): Days	14	48	1988	24
100 F (37.8 C): Days	5	2	1970	1
0 C (32 F): Ice days (max	14	44	1979	42
0 C (32 F): Frost days (min	14	232	1982	203
-10 C (14 F): Days with min	14	96	1989	96
-20 C (-4 F): Days with min	14	29	1979	25
-30 C (-22 F): Days with min	7	8	1972	4
-40 C (-40 F): Days with min	1	1	1989	1
20 C (68 F): Tropical nights (min	2	3	1970	2
10 mm (0.39 in): Days with 10 mm or more rain	28	11	1957	9
25 mm (0.98 in): Days with 25 mm or more rain	18	4	1957	1
50 mm (1.97 in): Days with 50 mm or more rain	4	2	1962	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1962	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	6	1972	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	2	1982	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1982	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

Data for Grass 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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

Grass Creek Threshold Days by Year (USC00484036)

Key Facts for Grass Creek Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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