Rocky Mountain House Threshold Days by Year (CA003015530)
16 fixed thresholds counted per year at Rocky Mountain House (CA003015530): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Rocky Mountain House Thresholds
- Rocky Mountain House: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1917 with 19.
- Rocky Mountain House: days with 25 mm (0.98 in) or more of precipitation in 25 years, most in 1926 with 6.
- Rocky Mountain House: days with 10 cm (3.9 in) or more of snowfall in 23 years, most in 1927 with 9.
- Rocky Mountain House: days with a maximum temperature at or below 0 C (32 F) in 22 years, most in 1940 with 134.
- 16 fixed thresholds have at least one qualifying day at Rocky Mountain House.
Days at or above 30 C (86 F)
17 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1917 | 3 | 7 |
| 1918 | 11 | 7 |
| 1920 | 8 | 5.4 |
| 1921 | 1 | 5.4 |
| 1922 | 5 | 5.4 |
| 1924 | 4 | 5.4 |
| 1925 | 2 | 5.4 |
| 1926 | 6 | 5.4 |
| 1927 | 4 | 5.4 |
| 1928 | 15 | 5.4 |
| 1929 | 4 | 5.4 |
| 1930 | 1 | 3.5 |
| 1934 | 3 | 3.5 |
| 1936 | 1 | 3.5 |
| 1937 | 3 | 3.5 |
| 1938 | 1 | 3.5 |
| 1939 | 12 | 3.5 |
| Year | First date | Last date |
|---|---|---|
| 1917 | 1917-06-16 | 1917-09-21 |
| 1918 | 1918-06-09 | 1918-08-01 |
| 1920 | 1920-07-15 | 1920-08-13 |
| 1921 | 1921-06-07 | 1921-06-07 |
| 1922 | 1922-06-03 | 1922-08-02 |
| 1924 | 1924-07-02 | 1924-07-26 |
| 1925 | 1925-06-28 | 1925-07-12 |
| 1926 | 1926-07-05 | 1926-07-14 |
| 1927 | 1927-07-22 | 1927-07-25 |
| 1928 | 1928-05-21 | 1928-08-11 |
| 1929 | 1929-07-14 | 1929-07-25 |
| 1930 | 1930-06-07 | 1930-06-07 |
| 1934 | 1934-07-28 | 1934-08-27 |
| 1936 | 1936-05-28 | 1936-05-28 |
| 1937 | 1937-06-28 | 1937-07-04 |
| 1938 | 1938-07-23 | 1938-07-23 |
| 1939 | 1939-05-14 | 1939-08-22 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 17 | 15 | 1928 | 12 |
| 35 C (95 F): Days | 2 | 1 | 1924 | 1 |
| 90 F (32.2 C): Days | 6 | 10 | 1928 | 1 |
| 0 C (32 F): Ice days (max | 22 | 134 | 1940 | 134 |
| 0 C (32 F): Frost days (min | 18 | 284 | 1920 | 170 |
| -10 C (14 F): Days with min | 18 | 164 | 1932 | 75 |
| -20 C (-4 F): Days with min | 18 | 84 | 1927 | 27 |
| -30 C (-22 F): Days with min | 18 | 47 | 1936 | 15 |
| -40 C (-40 F): Days with min | 15 | 14 | 1936 | 1 |
| 20 C (68 F): Tropical nights (min | 2 | 16 | 1939 | 16 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 27 | 19 | 1917 | 19 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 25 | 6 | 1926 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 2 | 1931 | 2 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 9 | 1927 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 1 | 1924 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1924 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.
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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).