Nampa Sugar Factory Threshold Days by Year (USC00106305)

14 fixed thresholds counted per year at Nampa Sugar Factory (USC00106305): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nampa Sugar Factory Thresholds

Nampa Sugar Factory: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1994 with 97.
Nampa Sugar Factory: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 2007 with 47.
Nampa Sugar Factory: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 2007 with 73.
Nampa Sugar Factory: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 1985 with 64.
14 fixed thresholds have at least one qualifying day at Nampa Sugar Factory.

Days at or above 30 C (86 F)

35 years with a qualifying day

Days per year at Nampa Sugar Factory with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 97 in 1994.

Days at or above 30 C (86 F) per year at Nampa Sugar Factory
Year	Days	Decade average
1977	71	62.3
1978	53	62.3
1979	63	62.3
1982	61	71
1983	58	71
1984	71	71
1985	62	71
1986	80	71
1987	80	71
1988	88	71
1989	68	71
1990	76	70.6
1991	68	70.6
1992	78	70.6
1993	45	70.6
1994	97	70.6
1995	62	70.6
1996	52	70.6
1997	73	70.6
1998	77	70.6
1999	78	70.6
2000	61	80.7
2001	92	80.7
2002	78	80.7
2003	96	80.7
2004	75	80.7
2005	65	80.7
2006	88	80.7
2007	95	80.7
2008	81	80.7
2009	76	80.7
2010	68	78
2011	75	78
2012	89	78
2014	80	78

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

First to last qualifying date each year at Nampa Sugar Factory
Year	First date	Last date
1977	1977-04-25	1977-09-11
1978	1978-06-05	1978-09-30
1979	1979-05-16	1979-09-23
1982	1982-05-26	1982-09-10
1983	1983-05-25	1983-09-14
1984	1984-05-14	1984-09-20
1985	1985-05-02	1985-08-31
1986	1986-04-22	1986-09-08
1987	1987-04-23	1987-09-25
1988	1988-05-12	1988-10-08
1989	1989-05-07	1989-09-30
1990	1990-05-06	1990-10-02
1991	1991-06-03	1991-09-28
1992	1992-04-30	1992-10-02
1993	1993-05-12	1993-09-11
1994	1994-04-19	1994-09-29
1995	1995-05-30	1995-09-19
1996	1996-06-03	1996-10-10
1997	1997-06-01	1997-10-02
1998	1998-05-02	1998-09-25
1999	1999-05-24	1999-09-24
2000	2000-05-22	2000-09-19
2001	2001-05-12	2001-10-02
2002	2002-05-19	2002-09-16
2003	2003-05-23	2003-10-07
2004	2004-05-03	2004-10-09
2005	2005-05-28	2005-08-29
2006	2006-05-15	2006-09-14
2007	2007-05-09	2007-09-15
2008	2008-05-17	2008-10-02
2009	2009-04-21	2009-09-27
2010	2010-06-15	2010-10-04
2011	2011-06-22	2011-10-02
2012	2012-04-23	2012-09-20
2014	2014-05-03	2014-09-25

Every Fixed Threshold

Fixed thresholds at Nampa Sugar Factory
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	35	97	1994	80
35 C (95 F): Days	35	47	2007	34
40 C (104 F): Days	16	6	2003	3
90 F (32.2 C): Days	35	73	2007	57
100 F (37.8 C): Days	34	22	2003	14
0 C (32 F): Ice days (max	35	64	1985	26
0 C (32 F): Frost days (min	31	164	1984	105
-10 C (14 F): Days with min	29	64	1985	13
-20 C (-4 F): Days with min	13	11	1979	1
-30 C (-22 F): Days with min	1	3	1990	3
20 C (68 F): Tropical nights (min	17	5	1984	1
10 mm (0.39 in): Days with 10 mm or more rain	35	14	2014	14
25 mm (0.98 in): Days with 25 mm or more rain	6	1	1979	1
10 cm (3.9 in): Days with 10 cm or more snowfall	9	3	2008	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

Data for Nampa Sugar Factory 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).

Nampa Sugar Factory Threshold Days by Year (USC00106305)

Key Facts for Nampa Sugar Factory Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related