Genoa Threshold Days by Year

15 fixed thresholds counted per year at Genoa (USC00053258): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Genoa Thresholds

Genoa: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1941 with 23.
Genoa: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1941 with 6.
Genoa: days with 10 cm (3.9 in) or more of snowfall in 53 years, most in 1995 with 7.
Genoa: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1965 with 3.
15 fixed thresholds have at least one qualifying day at Genoa.

Days at or above 30 C (86 F)

16 years with a qualifying day

Days per year at Genoa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 73 in 2012.

Days at or above 30 C (86 F) per year at Genoa
Year	Days	Decade average
1971	48	48
2003	46	34
2004	28	34
2009	28	34
2010	59	56.5
2011	58	56.5
2012	73	56.5
2013	54	56.5
2015	40	56.5
2016	51	56.5
2018	66	56.5
2019	51	56.5
2020	73	51.3
2023	38	51.3
2025	38	51.3
2026	56	51.3

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

First to last qualifying date each year at Genoa
Year	First date	Last date
1971	1971-06-15	1971-09-13
2003	2003-05-30	2003-10-20
2004	2004-05-06	2004-09-19
2009	2009-05-20	2009-09-02
2010	2010-05-23	2010-09-29
2011	2011-06-03	2011-09-29
2012	2012-05-19	2012-09-12
2013	2013-05-25	2013-09-10
2015	2015-06-03	2015-09-22
2016	2016-06-10	2016-09-21
2018	2018-05-26	2018-10-04
2019	2019-05-17	2019-10-01
2020	2020-05-29	2020-09-26
2023	2023-06-20	2023-10-02
2025	2025-06-10	2025-09-13
2026	2026-06-07	2026-08-30

Every Fixed Threshold

Fixed thresholds at Genoa
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	16	73	2012	56
35 C (95 F): Days	14	21	2012	8
90 F (32.2 C): Days	16	53	2020	28
100 F (37.8 C): Days	3	4	2012	4
0 C (32 F): Ice days (max	16	41	2013	3
0 C (32 F): Frost days (min	14	188	1971	64
-10 C (14 F): Days with min	14	50	1971	12
-20 C (-4 F): Days with min	12	8	2025	2
20 C (68 F): Tropical nights (min	9	8	2012	6
10 mm (0.39 in): Days with 10 mm or more rain	72	23	1941	6
25 mm (0.98 in): Days with 25 mm or more rain	64	6	1941	2
50 mm (1.97 in): Days with 50 mm or more rain	19	3	1965	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1942	1
10 cm (3.9 in): Days with 10 cm or more snowfall	53	7	1995	1
25 cm (9.8 in): Days with 25 cm or more snowfall	11	2	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1971.

Download the Data

Data for Genoa 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Genoa Threshold Days by Year

Key Facts for Genoa Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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