Union County, PA
An ordinary day in Union County, PA: was cooler than 49 of 75 earlier years in the county average (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 66°F
- Coldest since 2022
- 27th coldest of 76
- Low
- 56°F
- Warmest since 2024
- 16th warmest of 76
No measurable precipitation in the county average of Union County, PA for 1 day to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 60.5 to 76.5°F
Every year as a table
Every 29 September low of the county average in Union County, PA since 1951: 56°F in 2026; the lowest is 30.1°F, in 1957.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 66 | 56 |
| 2025 | 84.5 | 53.2 |
| 2024 | 67.3 | 61.1 |
| 2023 | 66.8 | 46.5 |
| 2022 | 64.1 | 44.5 |
| 2021 | 69.4 | 47.1 |
| 2020 | 80.3 | 61.7 |
| 2019 | 83.3 | 58.2 |
| 2018 | 67.6 | 50.7 |
| 2017 | 70.1 | 43.8 |
| 2016 | 73 | 47.5 |
| 2015 | 72.8 | 60.5 |
| 2014 | 78 | 52 |
| 2013 | 68.6 | 44.5 |
| 2012 | 65.7 | 50.7 |
| 2011 | 72.8 | 59.6 |
| 2010 | 76.3 | 51.9 |
| 2009 | 67.8 | 47.5 |
| 2008 | 70.1 | 59.4 |
| 2007 | 71 | 50.9 |
| 2006 | 67.2 | 49.5 |
| 2005 | 73.4 | 43.2 |
| 2004 | 65.8 | 58.3 |
| 2003 | 67.1 | 48.4 |
| 2002 | 71.4 | 43.7 |
| 2001 | 57.7 | 45.4 |
| 2000 | 56.9 | 31.8 |
| 1999 | 68.4 | 63.9 |
| 1998 | 73 | 43.5 |
| 1997 | 65.5 | 48.2 |
| 1996 | 67.4 | 46.4 |
| 1995 | 71.9 | 42.7 |
| 1994 | 60.7 | 48.4 |
| 1993 | 58.6 | 42.2 |
| 1992 | 67.7 | 44.7 |
| 1991 | 62.5 | 34.6 |
| 1990 | 71.8 | 51.9 |
| 1989 | 66.6 | 35.1 |
| 1988 | 65.2 | 40.7 |
| 1987 | 78 | 50.4 |
| 1986 | 70 | 58.6 |
| 1985 | 69.6 | 43.1 |
| 1984 | 49.2 | 40 |
| 1983 | 72.3 | 42.8 |
| 1982 | 64.6 | 52 |
| 1981 | 60.7 | 38 |
| 1980 | 69 | 41 |
| 1979 | 63.4 | 56.1 |
| 1978 | 64.5 | 34.4 |
| 1977 | 68.6 | 44.4 |
| 1976 | 61.9 | 39.2 |
| 1975 | 70.4 | 43.1 |
| 1974 | 68.1 | 60.5 |
| 1973 | 69.8 | 60.4 |
| 1972 | 69.9 | 52.1 |
| 1971 | 67.2 | 60.7 |
| 1970 | 58.4 | 39.6 |
| 1969 | 63 | 39.3 |
| 1968 | 69.2 | 40.7 |
| 1967 | 72 | 59.4 |
| 1966 | 57.6 | 48.3 |
| 1965 | 62.3 | 35.3 |
| 1964 | 52 | 44.4 |
| 1963 | 76.4 | 51.3 |
| 1962 | 57.1 | 47.2 |
| 1961 | 68.2 | 36.7 |
| 1960 | 68.5 | 55.7 |
| 1959 | 83 | 63.4 |
| 1958 | 62.2 | 36.7 |
| 1957 | 61 | 30.1 |
| 1956 | 57.8 | 47 |
| 1955 | 71.4 | 48.6 |
| 1954 | 83.7 | 50.9 |
| 1953 | 77.6 | 46.1 |
| 1952 | 76.1 | 44.7 |
| 1951 | 58.1 | 35.9 |
The month
September 2026 so far averaged 64.9°F in Union County, PA, the warmest 1 to 29 September in the county average since 2025, 18th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
The month in words
- August 2026 averaged 70°F in Union County, PA, the warmest August in the county average since 2024, tied 58th warmest of 132 (with 2024, 2015, 1917 and 1 other year) (county average from NOAA's monthly county data, 1895 to 2026).
- Tuesday 29 September 2026: a high of 66°F averaged over Union County, PA, the coldest 29 September day in the county average since 2022, 27th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 56°F averaged over Union County, PA, the warmest 29 September night in the county average since 2024, 16th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Williamsport, PA 20.6 mi, the nearest city with its own station