Rock Springs 7 SE Threshold Days by Year (USC00247140)
17 fixed thresholds counted per year at Rock Springs 7 SE (USC00247140): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Rock Springs 7 SE Thresholds
- Rock Springs 7 SE: nights with a minimum temperature at or below 0 C (32 F) in 31 years, most in 1917 with 213.
- Rock Springs 7 SE: nights with a minimum temperature at or below -10 C (14 F) in 31 years, most in 1917 with 103.
- Rock Springs 7 SE: nights with a minimum temperature at or below -20 C (-4 F) in 31 years, most in 1916 with 59.
- Rock Springs 7 SE: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1916 with 14.
- 17 fixed thresholds have at least one qualifying day at Rock Springs 7 SE.
Days at or above 30 C (86 F)
27 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1916 | 34 | 45.3 |
| 1917 | 48 | 45.3 |
| 1918 | 36 | 45.3 |
| 1919 | 63 | 45.3 |
| 1920 | 46 | 40.3 |
| 1921 | 37 | 40.3 |
| 1925 | 38 | 40.3 |
| 1926 | 40 | 40.3 |
| 1931 | 56 | 52.6 |
| 1932 | 48 | 52.6 |
| 1933 | 61 | 52.6 |
| 1934 | 56 | 52.6 |
| 1935 | 46 | 52.6 |
| 1936 | 61 | 52.6 |
| 1937 | 53 | 52.6 |
| 1938 | 42 | 52.6 |
| 1939 | 50 | 52.6 |
| 1940 | 51 | 39.4 |
| 1941 | 42 | 39.4 |
| 1942 | 29 | 39.4 |
| 1943 | 39 | 39.4 |
| 1944 | 19 | 39.4 |
| 1945 | 42 | 39.4 |
| 1946 | 41 | 39.4 |
| 1947 | 44 | 39.4 |
| 1948 | 42 | 39.4 |
| 1949 | 45 | 39.4 |
| Year | First date | Last date |
|---|---|---|
| 1916 | 1916-07-06 | 1916-09-09 |
| 1917 | 1917-05-16 | 1917-09-24 |
| 1918 | 1918-05-05 | 1918-09-23 |
| 1919 | 1919-05-24 | 1919-09-12 |
| 1920 | 1920-06-08 | 1920-10-05 |
| 1921 | 1921-06-07 | 1921-09-01 |
| 1925 | 1925-05-20 | 1925-09-05 |
| 1926 | 1926-04-29 | 1926-08-29 |
| 1931 | 1931-05-13 | 1931-09-07 |
| 1932 | 1932-05-12 | 1932-09-08 |
| 1933 | 1933-05-30 | 1933-10-04 |
| 1934 | 1934-05-05 | 1934-10-07 |
| 1935 | 1935-06-08 | 1935-09-22 |
| 1936 | 1936-05-04 | 1936-09-22 |
| 1937 | 1937-05-28 | 1937-09-20 |
| 1938 | 1938-06-12 | 1938-09-24 |
| 1939 | 1939-04-29 | 1939-09-21 |
| 1940 | 1940-05-11 | 1940-09-16 |
| 1941 | 1941-05-12 | 1941-09-18 |
| 1942 | 1942-07-04 | 1942-09-09 |
| 1943 | 1943-06-22 | 1943-10-08 |
| 1944 | 1944-05-29 | 1944-09-07 |
| 1945 | 1945-06-21 | 1945-09-05 |
| 1946 | 1946-06-09 | 1946-10-01 |
| 1947 | 1947-07-02 | 1947-09-07 |
| 1948 | 1948-05-17 | 1948-09-22 |
| 1949 | 1949-05-12 | 1949-09-24 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 27 | 63 | 1919 | 45 |
| 35 C (95 F): Days | 27 | 29 | 1936 | 16 |
| 40 C (104 F): Days | 13 | 6 | 1931 | 2 |
| 90 F (32.2 C): Days | 27 | 47 | 1919 | 30 |
| 100 F (37.8 C): Days | 24 | 14 | 1936 | 5 |
| 0 C (32 F): Ice days (max | 27 | 90 | 1917 | 82 |
| 0 C (32 F): Frost days (min | 31 | 213 | 1917 | 183 |
| -10 C (14 F): Days with min | 31 | 103 | 1917 | 95 |
| -20 C (-4 F): Days with min | 31 | 59 | 1916 | 55 |
| -30 C (-22 F): Days with min | 25 | 18 | 1936 | 7 |
| -40 C (-40 F): Days with min | 1 | 3 | 1936 | 3 |
| 20 C (68 F): Tropical nights (min | 22 | 12 | 1936 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 31 | 14 | 1916 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 21 | 3 | 1932 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 3 | 1 | 1921 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 12 | 2 | 1932 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1932 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.
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).