Cannonball Creek Montana Threshold Days by Year (USR0000MCAN)

13 fixed thresholds counted per year at Cannonball Creek Montana (USR0000MCAN): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cannonball Creek Montana Thresholds

Cannonball Creek Montana: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 2021 with 71.
Cannonball Creek Montana: days with a maximum temperature at or above 90 F (32.2 C) in 37 years, most in 2021 with 47.
Cannonball Creek Montana: days with a maximum temperature at or below 0 C (32 F) in 37 years, most in 1996 with 81.
Cannonball Creek Montana: nights with a minimum temperature at or below 0 C (32 F) in 37 years, most in 2002 with 202.
13 fixed thresholds have at least one qualifying day at Cannonball Creek Montana.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Cannonball Creek Montana with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 2021.

Days at or above 30 C (86 F) per year at Cannonball Creek Montana
Year	Days	Decade average
1988	48	46.5
1989	45	46.5
1990	41	32.7
1991	37	32.7
1992	24	32.7
1993	4	32.7
1994	30	32.7
1995	39	32.7
1996	35	32.7
1998	46	32.7
1999	38	32.7
2000	40	42.6
2001	51	42.6
2002	47	42.6
2003	50	42.6
2004	24	42.6
2005	36	42.6
2006	52	42.6
2007	49	42.6
2008	48	42.6
2009	29	42.6
2010	38	42
2011	55	42
2012	60	42
2013	32	42
2014	27	42
2015	49	42
2016	39	42
2017	55	42
2018	40	42
2019	25	42
2021	71	51
2022	52	51
2023	39	51
2024	50	51
2025	35	51
2026	59	51

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

First to last qualifying date each year at Cannonball Creek Montana
Year	First date	Last date
1988	1988-05-17	1988-09-06
1989	1989-04-22	1989-09-30
1990	1990-06-09	1990-09-25
1991	1991-05-21	1991-10-16
1992	1992-05-06	1992-10-01
1993	1993-06-20	1993-08-10
1994	1994-06-21	1994-09-24
1995	1995-06-13	1995-09-15
1996	1996-06-08	1996-09-04
1998	1998-07-09	1998-09-18
1999	1999-05-28	1999-09-23
2000	2000-06-06	2000-09-17
2001	2001-04-27	2001-10-01
2002	2002-06-24	2002-09-16
2003	2003-06-15	2003-09-08
2004	2004-06-06	2004-09-18
2005	2005-06-22	2005-10-01
2006	2006-05-18	2006-09-13
2007	2007-06-11	2007-09-22
2008	2008-06-24	2008-09-20
2009	2009-06-25	2009-09-19
2010	2010-06-24	2010-09-28
2011	2011-06-02	2011-10-04
2012	2012-04-23	2012-09-29
2013	2013-07-03	2013-09-17
2014	2014-05-23	2014-09-26
2015	2015-06-01	2015-10-10
2016	2016-05-05	2016-09-02
2017	2017-05-07	2017-09-13
2018	2018-05-26	2018-09-08
2019	2019-06-03	2019-09-16
2021	2021-05-18	2021-10-06
2022	2022-06-18	2022-09-29
2023	2023-04-11	2023-09-17
2024	2024-06-14	2024-09-29
2025	2025-05-10	2025-10-03
2026	2026-04-22	2026-10-09

Every Fixed Threshold

Fixed thresholds at Cannonball Creek Montana
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	71	2021	59
35 C (95 F): Days	35	25	2021	19
40 C (104 F): Days	14	3	2007	3
90 F (32.2 C): Days	37	47	2021	33
100 F (37.8 C): Days	28	7	1988	9
0 C (32 F): Ice days (max	37	81	1996	26
0 C (32 F): Frost days (min	37	202	2002	103
-10 C (14 F): Days with min	37	84	2022	22
-20 C (-4 F): Days with min	37	36	1996	5
-30 C (-22 F): Days with min	30	8	1996	2
-40 C (-40 F): Days with min	1	1	2005	1
20 C (68 F): Tropical nights (min	23	6	1988	6
25 C (77 F): Days with min	1	1	2000	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 Cannonball Creek Montana 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).

Cannonball Creek Montana Threshold Days by Year (USR0000MCAN)

Key Facts for Cannonball Creek Montana Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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