Weiser River Idaho Threshold Days by Year (USR0000IWEI)

10 fixed thresholds counted per year at Weiser River Idaho (USR0000IWEI): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Weiser River Idaho Thresholds

Weiser River Idaho: days with a maximum temperature at or above 30 C (86 F) in 25 years, most in 2017 with 76.
Weiser River Idaho: days with a maximum temperature at or above 35 C (95 F) in 25 years, most in 2021 with 31.
Weiser River Idaho: days with a maximum temperature at or above 90 F (32.2 C) in 25 years, most in 2022 with 56.
Weiser River Idaho: days with a maximum temperature at or below 0 C (32 F) in 25 years, most in 2022 with 45.
10 fixed thresholds have at least one qualifying day at Weiser River Idaho.

Days at or above 30 C (86 F)

25 years with a qualifying day

Days per year at Weiser River Idaho with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 2017.

Days at or above 30 C (86 F) per year at Weiser River Idaho
Year	Days	Decade average
2002	57	57.8
2003	70	57.8
2004	47	57.8
2005	50	57.8
2006	63	57.8
2007	60	57.8
2008	54	57.8
2009	61	57.8
2010	48	53.7
2011	55	53.7
2012	59	53.7
2013	60	53.7
2014	50	53.7
2015	52	53.7
2016	48	53.7
2017	76	53.7
2018	48	53.7
2019	41	53.7
2020	49	59.6
2021	68	59.6
2022	67	59.6
2023	49	59.6
2024	62	59.6
2025	64	59.6
2026	58	59.6

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

First to last qualifying date each year at Weiser River Idaho
Year	First date	Last date
2002	2002-06-13	2002-09-15
2003	2003-05-23	2003-09-27
2004	2004-06-04	2004-09-27
2005	2005-06-20	2005-09-08
2006	2006-05-14	2006-09-12
2007	2007-06-01	2007-09-13
2008	2008-05-16	2008-09-19
2009	2009-05-23	2009-09-25
2010	2010-06-28	2010-10-02
2011	2011-06-22	2011-09-24
2012	2012-05-15	2012-09-19
2013	2013-06-09	2013-09-11
2014	2014-06-23	2014-09-16
2015	2015-06-07	2015-09-13
2016	2016-06-04	2016-08-31
2017	2017-05-30	2017-09-11
2018	2018-06-27	2018-09-07
2019	2019-07-06	2019-09-05
2020	2020-05-29	2020-09-11
2021	2021-06-01	2021-09-09
2022	2022-06-26	2022-09-27
2023	2023-06-29	2023-09-11
2024	2024-06-07	2024-09-09
2025	2025-05-28	2025-09-20
2026	2026-05-12	2026-08-27

Every Fixed Threshold

Fixed thresholds at Weiser River Idaho
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	25	76	2017	58
35 C (95 F): Days	25	31	2021	16
40 C (104 F): Days	8	3	2002	1
90 F (32.2 C): Days	25	56	2022	46
100 F (37.8 C): Days	19	12	2003	2
0 C (32 F): Ice days (max	25	45	2022	10
0 C (32 F): Frost days (min	25	155	2008	47
-10 C (14 F): Days with min	23	26	2013	7
20 C (68 F): Tropical nights (min	25	42	2021	24
25 C (77 F): Days with min	8	3	2002	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2002.

Download the Data

Data for Weiser River 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).

Weiser River Idaho Threshold Days by Year (USR0000IWEI)

Key Facts for Weiser River Idaho Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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