Big Is Threshold Days by Year

14 fixed thresholds counted per year at Big Is (USC00444039): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Big Is Thresholds

Big Is: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 2018 with 61.
Big Is: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 2018 with 30.
Big Is: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 2018 with 8.
Big Is: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1966 with 4.
14 fixed thresholds have at least one qualifying day at Big Is.

Days with 10 mm (0.39 in) or more of precipitation

34 years with a qualifying day

Days per year at Big Is with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 61 in 2018.

Days with 10 mm (0.39 in) or more of precipitation per year at Big Is
Year	Days	Decade average
1961	47	33.4
1962	38	33.4
1963	22	33.4
1964	38	33.4
1965	27	33.4
1966	31	33.4
1968	31	33.4
1970	38	38.6
1971	37	38.6
1973	41	38.6
1974	37	38.6
1975	47	38.6
1976	36	38.6
1977	36	38.6
1978	37	38.6
1980	29	38
1981	39	38
1982	38	38
1983	35	38
1984	49	38
2007	29	38.7
2008	38	38.7
2009	49	38.7
2010	41	45.5
2011	41	45.5
2012	37	45.5
2013	50	45.5
2014	44	45.5
2015	48	45.5
2016	45	45.5
2017	36	45.5
2018	61	45.5
2019	52	45.5
2022	49	49

For each year, a bar from the first to the last day at Big Is meeting 10 mm (0.39 in).

First to last qualifying date each year at Big Is
Year	First date	Last date
1961	1961-01-01	1961-12-28
1962	1962-01-06	1962-12-30
1963	1963-01-12	1963-12-24
1964	1964-01-01	1964-12-28
1965	1965-01-10	1965-11-22
1966	1966-01-06	1966-12-29
1968	1968-03-01	1968-12-22
1970	1970-01-19	1970-12-31
1971	1971-01-04	1971-12-19
1973	1973-01-04	1973-12-31
1974	1974-01-21	1974-12-16
1975	1975-01-11	1975-12-31
1976	1976-01-01	1976-12-08
1977	1977-01-10	1977-12-25
1978	1978-01-09	1978-12-31
1980	1980-01-05	1980-11-05
1981	1981-02-02	1981-12-22
1982	1982-01-02	1982-12-15
1983	1983-01-23	1983-12-28
1984	1984-01-10	1984-12-30
2007	2007-01-01	2007-12-31
2008	2008-01-18	2008-12-17
2009	2009-01-07	2009-12-26
2010	2010-01-18	2010-12-17
2011	2011-01-27	2011-12-28
2012	2012-01-12	2012-12-27
2013	2013-01-15	2013-12-30
2014	2014-01-06	2014-12-25
2015	2015-01-13	2015-12-29
2016	2016-01-10	2016-12-24
2017	2017-01-03	2017-10-24
2018	2018-01-12	2018-12-29
2019	2019-01-05	2019-12-30
2022	2022-01-02	2022-12-23

Every Fixed Threshold

Fixed thresholds at Big Is
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	1	72	2012	72
35 C (95 F): Days	1	14	2012	14
40 C (104 F): Days	1	1	2012	1
90 F (32.2 C): Days	1	32	2012	32
100 F (37.8 C): Days	1	3	2012	3
0 C (32 F): Ice days (max	1	1	2012	1
0 C (32 F): Frost days (min	1	74	2012	74
20 C (68 F): Tropical nights (min	1	28	2012	28
10 mm (0.39 in): Days with 10 mm or more rain	34	61	2018	49
25 mm (0.98 in): Days with 25 mm or more rain	34	30	2018	19
50 mm (1.97 in): Days with 50 mm or more rain	32	8	2018	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	2008	1
10 cm (3.9 in): Days with 10 cm or more snowfall	16	4	1966	1
25 cm (9.8 in): Days with 25 cm or more snowfall	7	2	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2012.

Download the Data

Data for Big Is 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).

Big Is Threshold Days by Year

Key Facts for Big Is Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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