Indianola Idaho Threshold Days by Year

12 fixed thresholds counted per year at Indianola Idaho (USR0000IIND): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Indianola Idaho Thresholds

Indianola Idaho: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 2003 with 96.
Indianola Idaho: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 2003 with 53.
Indianola Idaho: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 2013 with 77.
Indianola Idaho: days with a maximum temperature at or above 100 F (37.8 C) in 35 years, most in 2003 with 27.
12 fixed thresholds have at least one qualifying day at Indianola Idaho.

Days at or above 30 C (86 F)

35 years with a qualifying day

Days per year at Indianola Idaho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 96 in 2003.

Days at or above 30 C (86 F) per year at Indianola Idaho
Year	Days	Decade average
1988	89	77.5
1989	66	77.5
1990	72	72.8
1991	79	72.8
1992	71	72.8
1994	93	72.8
1995	66	72.8
1996	77	72.8
1997	58	72.8
1999	66	72.8
2000	72	79.9
2001	91	79.9
2003	96	79.9
2004	61	79.9
2005	71	79.9
2006	83	79.9
2008	76	79.9
2009	89	79.9
2010	62	76.5
2011	84	76.5
2012	89	76.5
2013	91	76.5
2014	65	76.5
2015	86	76.5
2016	68	76.5
2017	86	76.5
2018	66	76.5
2019	68	76.5
2020	70	78.4
2021	88	78.4
2022	82	78.4
2023	71	78.4
2024	79	78.4
2025	85	78.4
2026	74	78.4

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

First to last qualifying date each year at Indianola Idaho
Year	First date	Last date
1988	1988-05-11	1988-10-09
1989	1989-05-06	1989-09-25
1990	1990-05-05	1990-09-27
1991	1991-06-02	1991-10-01
1992	1992-04-29	1992-10-02
1994	1994-04-17	1994-09-27
1995	1995-06-02	1995-09-17
1996	1996-06-02	1996-10-10
1997	1997-05-12	1997-09-25
1999	1999-05-23	1999-09-23
2000	2000-04-27	2000-09-17
2001	2001-05-11	2001-10-01
2003	2003-05-23	2003-10-06
2004	2004-05-01	2004-09-11
2005	2005-05-27	2005-09-20
2006	2006-05-14	2006-09-28
2008	2008-05-16	2008-10-01
2009	2009-05-17	2009-09-27
2010	2010-06-13	2010-10-03
2011	2011-06-05	2011-10-03
2012	2012-04-22	2012-10-01
2013	2013-05-11	2013-09-16
2014	2014-05-22	2014-09-25
2015	2015-05-31	2015-10-10
2016	2016-06-03	2016-09-29
2017	2017-05-04	2017-09-13
2018	2018-04-27	2018-09-10
2019	2019-05-12	2019-09-15
2020	2020-05-28	2020-09-23
2021	2021-05-06	2021-09-27
2022	2022-06-10	2022-09-27
2023	2023-04-30	2023-09-17
2024	2024-06-06	2024-09-28
2025	2025-05-09	2025-09-20
2026	2026-05-10	2026-10-09

Every Fixed Threshold

Fixed thresholds at Indianola Idaho
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	35	96	2003	74
35 C (95 F): Days	35	53	2003	38
40 C (104 F): Days	24	12	2003	4
90 F (32.2 C): Days	35	77	2013	59
100 F (37.8 C): Days	35	27	2003	13
110 F (43.3 C): Days	1	1	2006	1
0 C (32 F): Ice days (max	35	61	2022	11
0 C (32 F): Frost days (min	35	188	1999	79
-10 C (14 F): Days with min	35	60	2022	10
-20 C (-4 F): Days with min	25	9	2017	1
-30 C (-22 F): Days with min	2	2	1990	2
20 C (68 F): Tropical nights (min	5	1	1999	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

Data for Indianola Idaho 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Indianola Idaho Threshold Days by Year

Key Facts for Indianola Idaho Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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