Pittsburgh WSO City Threshold Days by Year (USW00014861)
15 fixed thresholds counted per year at Pittsburgh WSO City (USW00014861): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Pittsburgh WSO City Thresholds
- Pittsburgh WSO City: days with a maximum temperature at or above 30 C (86 F) in 48 years, most in 1955 with 66.
- Pittsburgh WSO City: days with a maximum temperature at or above 90 F (32.2 C) in 48 years, most in 1953 with 34.
- Pittsburgh WSO City: days with a maximum temperature at or below 0 C (32 F) in 48 years, most in 1978 with 50.
- Pittsburgh WSO City: nights with a minimum temperature at or below 0 C (32 F) in 48 years, most in 1976 with 124.
- 15 fixed thresholds have at least one qualifying day at Pittsburgh WSO City.
Days at or above 30 C (86 F)
48 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1926 | 26 | 25.8 |
| 1927 | 24 | 25.8 |
| 1928 | 25 | 25.8 |
| 1929 | 28 | 25.8 |
| 1930 | 45 | 47.4 |
| 1931 | 50 | 47.4 |
| 1932 | 45 | 47.4 |
| 1933 | 43 | 47.4 |
| 1934 | 54 | 47.4 |
| 1940 | 46 | 49.4 |
| 1941 | 60 | 49.4 |
| 1942 | 47 | 49.4 |
| 1943 | 55 | 49.4 |
| 1944 | 60 | 49.4 |
| 1945 | 47 | 49.4 |
| 1946 | 36 | 49.4 |
| 1947 | 53 | 49.4 |
| 1948 | 39 | 49.4 |
| 1949 | 51 | 49.4 |
| 1950 | 24 | 46.1 |
| 1951 | 46 | 46.1 |
| 1952 | 56 | 46.1 |
| 1953 | 60 | 46.1 |
| 1954 | 40 | 46.1 |
| 1955 | 66 | 46.1 |
| 1956 | 31 | 46.1 |
| 1957 | 42 | 46.1 |
| 1958 | 30 | 46.1 |
| 1959 | 66 | 46.1 |
| 1960 | 39 | 39.1 |
| 1961 | 42 | 39.1 |
| 1962 | 45 | 39.1 |
| 1963 | 31 | 39.1 |
| 1964 | 45 | 39.1 |
| 1965 | 38 | 39.1 |
| 1966 | 44 | 39.1 |
| 1967 | 23 | 39.1 |
| 1968 | 47 | 39.1 |
| 1969 | 37 | 39.1 |
| 1970 | 51 | 36.1 |
| 1971 | 37 | 36.1 |
| 1972 | 24 | 36.1 |
| 1973 | 40 | 36.1 |
| 1974 | 25 | 36.1 |
| 1975 | 37 | 36.1 |
| 1976 | 27 | 36.1 |
| 1977 | 42 | 36.1 |
| 1978 | 42 | 36.1 |
| Year | First date | Last date |
|---|---|---|
| 1926 | 1926-05-02 | 1926-09-22 |
| 1927 | 1927-05-09 | 1927-10-02 |
| 1928 | 1928-05-04 | 1928-09-10 |
| 1929 | 1929-05-27 | 1929-09-07 |
| 1930 | 1930-04-11 | 1930-09-26 |
| 1931 | 1931-05-18 | 1931-09-22 |
| 1932 | 1932-05-25 | 1932-09-22 |
| 1933 | 1933-06-06 | 1933-09-25 |
| 1934 | 1934-05-19 | 1934-09-25 |
| 1940 | 1940-05-14 | 1940-09-21 |
| 1941 | 1941-04-19 | 1941-10-07 |
| 1942 | 1942-04-26 | 1942-09-18 |
| 1943 | 1943-05-06 | 1943-09-06 |
| 1944 | 1944-05-03 | 1944-09-04 |
| 1945 | 1945-05-21 | 1945-09-28 |
| 1946 | 1946-06-08 | 1946-09-27 |
| 1947 | 1947-05-28 | 1947-09-21 |
| 1948 | 1948-04-26 | 1948-09-17 |
| 1949 | 1949-05-04 | 1949-10-10 |
| 1950 | 1950-05-05 | 1950-08-28 |
| 1951 | 1951-05-16 | 1951-10-05 |
| 1952 | 1952-04-22 | 1952-10-01 |
| 1953 | 1953-05-04 | 1953-09-30 |
| 1954 | 1954-04-21 | 1954-09-29 |
| 1955 | 1955-05-04 | 1955-09-19 |
| 1956 | 1956-05-13 | 1956-09-05 |
| 1957 | 1957-04-26 | 1957-09-19 |
| 1958 | 1958-05-18 | 1958-09-06 |
| 1959 | 1959-05-06 | 1959-10-06 |
| 1960 | 1960-04-23 | 1960-09-09 |
| 1961 | 1961-06-11 | 1961-09-25 |
| 1962 | 1962-04-26 | 1962-09-13 |
| 1963 | 1963-05-09 | 1963-09-12 |
| 1964 | 1964-05-19 | 1964-09-17 |
| 1965 | 1965-05-08 | 1965-09-22 |
| 1966 | 1966-05-23 | 1966-09-03 |
| 1967 | 1967-05-27 | 1967-08-02 |
| 1968 | 1968-06-06 | 1968-09-22 |
| 1969 | 1969-05-16 | 1969-09-05 |
| 1970 | 1970-04-30 | 1970-09-24 |
| 1971 | 1971-05-18 | 1971-09-29 |
| 1972 | 1972-05-24 | 1972-09-17 |
| 1973 | 1973-06-04 | 1973-09-05 |
| 1974 | 1974-05-14 | 1974-08-27 |
| 1975 | 1975-05-20 | 1975-08-26 |
| 1976 | 1976-04-17 | 1976-09-14 |
| 1977 | 1977-05-17 | 1977-09-05 |
| 1978 | 1978-05-26 | 1978-09-21 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 48 | 66 | 1955 | 42 |
| 35 C (95 F): Days | 30 | 14 | 1952 | 1 |
| 90 F (32.2 C): Days | 48 | 34 | 1953 | 8 |
| 100 F (37.8 C): Days | 2 | 1 | 1948 | 1 |
| 0 C (32 F): Ice days (max | 48 | 50 | 1978 | 50 |
| 0 C (32 F): Frost days (min | 48 | 124 | 1976 | 110 |
| -10 C (14 F): Days with min | 48 | 43 | 1977 | 32 |
| -20 C (-4 F): Days with min | 11 | 4 | 1977 | 4 |
| 20 C (68 F): Tropical nights (min | 48 | 53 | 1959 | 31 |
| 25 C (77 F): Days with min | 15 | 4 | 1952 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 48 | 44 | 1945 | 35 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 48 | 11 | 1940 | 8 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 18 | 3 | 1955 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 29 | 4 | 1967 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 1 | 1940 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.
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).