Blewett Pass Threshold Days by Year
14 fixed thresholds counted per year at Blewett Pass (USC00450749): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Blewett Pass Thresholds
- Blewett Pass: days with a maximum temperature at or above 30 C (86 F) in 13 years, most in 1939 with 21.
- Blewett Pass: days with a maximum temperature at or above 90 F (32.2 C) in 13 years, most in 1939 with 14.
- Blewett Pass: days with a maximum temperature at or below 0 C (32 F) in 13 years, most in 1931 with 80.
- Blewett Pass: nights with a minimum temperature at or below 0 C (32 F) in 13 years, most in 1933 with 192.
- 14 fixed thresholds have at least one qualifying day at Blewett Pass.
Days at or above 30 C (86 F)
13 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1928 | 9 | 8 |
| 1929 | 7 | 8 |
| 1930 | 8 | 11.5 |
| 1931 | 8 | 11.5 |
| 1932 | 6 | 11.5 |
| 1933 | 17 | 11.5 |
| 1934 | 17 | 11.5 |
| 1935 | 6 | 11.5 |
| 1936 | 11 | 11.5 |
| 1937 | 4 | 11.5 |
| 1938 | 17 | 11.5 |
| 1939 | 21 | 11.5 |
| 1940 | 11 | 11 |
| Year | First date | Last date |
|---|---|---|
| 1928 | 1928-05-26 | 1928-08-09 |
| 1929 | 1929-07-29 | 1929-08-29 |
| 1930 | 1930-08-06 | 1930-08-14 |
| 1931 | 1931-07-08 | 1931-08-16 |
| 1932 | 1932-06-28 | 1932-08-17 |
| 1933 | 1933-06-13 | 1933-08-23 |
| 1934 | 1934-05-27 | 1934-09-05 |
| 1935 | 1935-07-13 | 1935-09-02 |
| 1936 | 1936-06-22 | 1936-08-05 |
| 1937 | 1937-06-28 | 1937-07-25 |
| 1938 | 1938-07-07 | 1938-09-17 |
| 1939 | 1939-06-29 | 1939-08-23 |
| 1940 | 1940-06-11 | 1940-08-20 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 13 | 21 | 1939 | 11 |
| 35 C (95 F): Days | 4 | 5 | 1938 | 3 |
| 90 F (32.2 C): Days | 13 | 14 | 1939 | 2 |
| 100 F (37.8 C): Days | 2 | 1 | 1928 | 1 |
| 0 C (32 F): Ice days (max | 13 | 80 | 1931 | 45 |
| 0 C (32 F): Frost days (min | 13 | 192 | 1933 | 174 |
| -10 C (14 F): Days with min | 13 | 44 | 1937 | 20 |
| -20 C (-4 F): Days with min | 9 | 7 | 1936 | 1 |
| 20 C (68 F): Tropical nights (min | 5 | 4 | 1938 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 8 | 35 | 1937 | 20 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 7 | 11 | 1933 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 2 | 1933 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1932 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 1 | 5 | 1928 | 5 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1928.
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).