Chain Buttes Montana Threshold Days by Year
13 fixed thresholds counted per year at Chain Buttes Montana (USR0000MCHA): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Chain Buttes Montana Thresholds
- Chain Buttes Montana: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 2001 with 82.
- Chain Buttes Montana: days with a maximum temperature at or above 90 F (32.2 C) in 28 years, most in 2001 with 56.
- Chain Buttes Montana: days with a maximum temperature at or below 0 C (32 F) in 28 years, most in 1996 with 78.
- Chain Buttes Montana: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 2002 with 180.
- 13 fixed thresholds have at least one qualifying day at Chain Buttes Montana.
Days at or above 30 C (86 F)
28 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1986 | 18 | 30 |
| 1987 | 19 | 30 |
| 1988 | 53 | 30 |
| 1989 | 30 | 30 |
| 1990 | 54 | 44.5 |
| 1991 | 51 | 44.5 |
| 1992 | 33 | 44.5 |
| 1993 | 13 | 44.5 |
| 1994 | 50 | 44.5 |
| 1995 | 37 | 44.5 |
| 1996 | 51 | 44.5 |
| 1997 | 44 | 44.5 |
| 1998 | 64 | 44.5 |
| 1999 | 48 | 44.5 |
| 2000 | 54 | 57 |
| 2001 | 82 | 57 |
| 2002 | 58 | 57 |
| 2003 | 66 | 57 |
| 2004 | 38 | 57 |
| 2005 | 51 | 57 |
| 2006 | 66 | 57 |
| 2007 | 59 | 57 |
| 2008 | 54 | 57 |
| 2009 | 42 | 57 |
| 2010 | 36 | 50.5 |
| 2011 | 58 | 50.5 |
| 2012 | 63 | 50.5 |
| 2013 | 45 | 50.5 |
| Year | First date | Last date |
|---|---|---|
| 1986 | 1986-05-30 | 1986-08-29 |
| 1987 | 1987-06-05 | 1987-10-03 |
| 1988 | 1988-05-16 | 1988-09-06 |
| 1989 | 1989-06-19 | 1989-09-29 |
| 1990 | 1990-06-10 | 1990-09-25 |
| 1991 | 1991-06-10 | 1991-10-16 |
| 1992 | 1992-05-05 | 1992-10-03 |
| 1993 | 1993-05-13 | 1993-09-11 |
| 1994 | 1994-05-27 | 1994-09-23 |
| 1995 | 1995-05-30 | 1995-09-12 |
| 1996 | 1996-06-07 | 1996-10-10 |
| 1997 | 1997-05-15 | 1997-10-02 |
| 1998 | 1998-05-03 | 1998-09-17 |
| 1999 | 1999-05-28 | 1999-09-23 |
| 2000 | 2000-05-01 | 2000-09-17 |
| 2001 | 2001-04-26 | 2001-10-01 |
| 2002 | 2002-05-21 | 2002-09-16 |
| 2003 | 2003-05-25 | 2003-10-19 |
| 2004 | 2004-06-03 | 2004-09-25 |
| 2005 | 2005-06-20 | 2005-10-15 |
| 2006 | 2006-05-17 | 2006-09-30 |
| 2007 | 2007-05-17 | 2007-10-24 |
| 2008 | 2008-04-14 | 2008-10-02 |
| 2009 | 2009-05-30 | 2009-09-26 |
| 2010 | 2010-06-24 | 2010-09-28 |
| 2011 | 2011-06-28 | 2011-10-04 |
| 2012 | 2012-04-23 | 2012-09-18 |
| 2013 | 2013-05-12 | 2013-09-21 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 28 | 82 | 2001 | 45 |
| 35 C (95 F): Days | 27 | 34 | 2003 | 8 |
| 40 C (104 F): Days | 10 | 8 | 2003 | 1 |
| 90 F (32.2 C): Days | 28 | 56 | 2001 | 32 |
| 100 F (37.8 C): Days | 22 | 16 | 2003 | 1 |
| 110 F (43.3 C): Days | 1 | 1 | 2002 | 1 |
| 0 C (32 F): Ice days (max | 28 | 78 | 1996 | 45 |
| 0 C (32 F): Frost days (min | 28 | 180 | 2002 | 165 |
| -10 C (14 F): Days with min | 28 | 80 | 1996 | 55 |
| -20 C (-4 F): Days with min | 28 | 40 | 1996 | 14 |
| -30 C (-22 F): Days with min | 12 | 7 | 1989 | 2 |
| 20 C (68 F): Tropical nights (min | 26 | 19 | 2007 | 5 |
| 25 C (77 F): Days with min | 1 | 1 | 2002 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1986.
Download the Data
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 . Last revised (2025-12-31).