Montana Tech (Butte Sch of Min Threshold Days by Year
11 fixed thresholds counted per year at Montana Tech (Butte Sch of Min (USC00241313): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Montana Tech (Butte Sch of Min Thresholds
- Montana Tech (Butte Sch of Min: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1957 with 7.
- Montana Tech (Butte Sch of Min: days with 10 mm (0.39 in) or more of precipitation in 14 years, most in 1947 with 11.
- Montana Tech (Butte Sch of Min: nights with a minimum temperature at or below 0 C (32 F) in 13 years, most in 1955 with 214.
- Montana Tech (Butte Sch of Min: nights with a minimum temperature at or below -10 C (14 F) in 13 years, most in 1955 with 87.
- 11 fixed thresholds have at least one qualifying day at Montana Tech (Butte Sch of Min.
Days at or above 30 C (86 F)
11 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1946 | 15 | 13.3 |
| 1947 | 16 | 13.3 |
| 1949 | 9 | 13.3 |
| 1950 | 1 | 7.9 |
| 1951 | 9 | 7.9 |
| 1952 | 4 | 7.9 |
| 1953 | 13 | 7.9 |
| 1954 | 12 | 7.9 |
| 1955 | 12 | 7.9 |
| 1957 | 7 | 7.9 |
| 1958 | 5 | 7.9 |
| Year | First date | Last date |
|---|---|---|
| 1946 | 1946-07-14 | 1946-08-22 |
| 1947 | 1947-07-02 | 1947-09-02 |
| 1949 | 1949-07-02 | 1949-08-22 |
| 1950 | 1950-09-01 | 1950-09-01 |
| 1951 | 1951-07-16 | 1951-07-31 |
| 1952 | 1952-07-10 | 1952-08-22 |
| 1953 | 1953-07-10 | 1953-08-19 |
| 1954 | 1954-06-22 | 1954-08-03 |
| 1955 | 1955-06-22 | 1955-09-01 |
| 1957 | 1957-07-05 | 1957-08-06 |
| 1958 | 1958-05-22 | 1958-09-09 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 11 | 16 | 1947 | 5 |
| 90 F (32.2 C): Days | 7 | 5 | 1954 | 1 |
| 0 C (32 F): Ice days (max | 12 | 93 | 1955 | 35 |
| 0 C (32 F): Frost days (min | 13 | 214 | 1955 | 185 |
| -10 C (14 F): Days with min | 13 | 87 | 1955 | 38 |
| -20 C (-4 F): Days with min | 12 | 26 | 1949 | 3 |
| -30 C (-22 F): Days with min | 7 | 5 | 1949 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 14 | 11 | 1947 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 7 | 1 | 1946 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 16 | 7 | 1957 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 1 | 1950 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.
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).