Stevens Pass Threshold Days by Year
15 fixed thresholds counted per year at Stevens Pass (USC00458089): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Stevens Pass Thresholds
- Stevens Pass: days with 10 cm (3.9 in) or more of snowfall in 35 years, most in 1964 with 71.
- Stevens Pass: days with 25 cm (9.8 in) or more of snowfall in 35 years, most in 1964 with 30.
- Stevens Pass: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1959 with 89.
- Stevens Pass: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1975 with 34.
- 15 fixed thresholds have at least one qualifying day at Stevens Pass.
Days at or above 30 C (86 F)
14 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1941 | 5 | 8 |
| 1942 | 11 | 8 |
| 1952 | 1 | 2.3 |
| 1958 | 3 | 2.3 |
| 1959 | 3 | 2.3 |
| 1960 | 2 | 2 |
| 1961 | 4 | 2 |
| 1962 | 1 | 2 |
| 1963 | 1 | 2 |
| 1965 | 2 | 2 |
| 1967 | 2 | 2 |
| 1973 | 1 | 2 |
| 1977 | 3 | 2 |
| 1981 | 3 | 3 |
| Year | First date | Last date |
|---|---|---|
| 1941 | 1941-07-15 | 1941-07-19 |
| 1942 | 1942-06-29 | 1942-08-16 |
| 1952 | 1952-07-09 | 1952-07-09 |
| 1958 | 1958-07-28 | 1958-08-25 |
| 1959 | 1959-07-19 | 1959-08-01 |
| 1960 | 1960-07-17 | 1960-07-30 |
| 1961 | 1961-06-16 | 1961-07-13 |
| 1962 | 1962-07-23 | 1962-07-23 |
| 1963 | 1963-08-09 | 1963-08-09 |
| 1965 | 1965-07-31 | 1965-08-02 |
| 1967 | 1967-08-16 | 1967-08-17 |
| 1973 | 1973-08-13 | 1973-08-13 |
| 1977 | 1977-08-13 | 1977-08-18 |
| 1981 | 1981-08-09 | 1981-08-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 14 | 11 | 1942 | 3 |
| 35 C (95 F): Days | 1 | 1 | 1942 | 1 |
| 90 F (32.2 C): Days | 4 | 6 | 1942 | 1 |
| 0 C (32 F): Ice days (max | 21 | 106 | 1964 | 65 |
| 0 C (32 F): Frost days (min | 21 | 213 | 1975 | 196 |
| -10 C (14 F): Days with min | 21 | 38 | 1975 | 7 |
| -20 C (-4 F): Days with min | 8 | 5 | 1962 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 31 | 89 | 1959 | 59 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 31 | 34 | 1975 | 26 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 31 | 8 | 1959 | 7 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 11 | 2 | 1959 | 3 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 0 | n/a | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 35 | 71 | 1964 | 27 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 35 | 30 | 1964 | 8 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 22 | 5 | 1961 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.
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 (2025-12-31).