NOAA's National Centers for Environmental Information
County Rankings
Chester County, Pennsylvania
December 1939 Average Temperature Rankings
| Period | Value | 1901-2000 Mean | Anomaly | Rank (1895-2025) | Coolest/Warmest Since | Record |
|---|---|---|---|---|---|---|
| December 1939 1-Month | 33.7°F (0.9°C) | 32.3°F (0.2°C) | 1.4°F | 67th Coolest | Coolest since: | 1989 |
| 64th Warmest | Warmest since: | 2015 | ||||
| Ties: 1932 | ||||||
| Nov– 2-Month | 36.7°F (2.6°C) | 37.4°F (3.0°C) | -0.7°F | 42nd Coolest | Coolest since: | 1917 |
| 89th Warmest | Warmest since: | 2015 | ||||
| Ties: 1920 | ||||||
| Oct– 3-Month | 42.2°F (5.7°C) | 42.9°F (6.1°C) | -0.7°F | 38th Coolest | Coolest since: | 1917 |
| 93rd Warmest | Warmest since: | 2015 | ||||
| Ties: 1895, 1896, 1898 | ||||||
| Sep– 4-Month | 48.1°F (8.9°C) | 48.4°F (9.1°C) | -0.3°F | 40th Coolest | Coolest since: | 1917 |
| 91st Warmest | Warmest since: | 2015 | ||||
| Aug– 5-Month | 53.4°F (11.9°C) | 53.1°F (11.7°C) | 0.3°F | 61st Coolest | Coolest since: | 1917 |
| 70th Warmest | Warmest since: | 2015 | ||||
| Jul– 6-Month | 56.7°F (13.7°C) | 56.6°F (13.7°C) | 0.1°F | 54th Coolest | Coolest since: | 1917 |
| 77th Warmest | Warmest since: | 2015 | ||||
| Jun– 7-Month | 58.7°F (14.8°C) | 58.3°F (14.6°C) | 0.4°F | 71st Coolest | Coolest since: | 1917 |
| 60th Warmest | Warmest since: | 2015 | ||||
| May– 8-Month | 59.2°F (15.1°C) | 58.6°F (14.8°C) | 0.6°F | 78th Coolest | Coolest since: | 1917 |
| 53rd Warmest | Warmest since: | 2015 | ||||
| Apr– 9-Month | 58.0°F (14.4°C) | 57.7°F (14.3°C) | 0.3°F | 62nd Coolest | Coolest since: | 1917 |
| 69th Warmest | Warmest since: | 2015 | ||||
| Mar– 10-Month | 56.1°F (13.4°C) | 55.9°F (13.3°C) | 0.2°F | 58th Coolest | Coolest since: | 1917 |
| 73rd Warmest | Warmest since: | 2011 | ||||
| Feb– 11-Month | 54.2°F (12.3°C) | 53.6°F (12.0°C) | 0.6°F | 84th Coolest | Coolest since: | 1904 |
| 47th Warmest | Warmest since: | 2012, 2024 | ||||
| Jan– 12-Month | 52.2°F (11.2°C) | 51.5°F (10.8°C) | 0.7°F | 83rd Coolest | Coolest since: | 1904 |
| 48th Warmest | Warmest since: | 2012 | ||||
| Jul 1938– 18-Month | 53.9°F (12.2°C) | 53.2°F (11.8°C) | 0.7°F | 88th Coolest | Coolest since: | 1904 |
| 42nd Warmest | Warmest since: | 2012 | ||||
| Jan 1938– 24-Month | 52.3°F (11.3°C) | 51.5°F (10.8°C) | 0.8°F | 92nd Coolest | Coolest since: | 1905 |
| 38th Warmest | Warmest since: | 2012, 2024 | ||||
| Jan 1937– 36-Month | 52.1°F (11.2°C) | 51.5°F (10.8°C) | 0.6°F | 87th Coolest | Coolest since: | 1905 |
| 42nd Warmest | Warmest since: | 2012 | ||||
| Jan 1936– 48-Month | 51.9°F (11.1°C) | 51.5°F (10.8°C) | 0.4°F | 77th Coolest | Coolest since: | 1907 |
| 51st Warmest | Warmest since: | 2023, 2024 | ||||
| Jan 1935– 60-Month | 51.6°F (10.9°C) | 51.5°F (10.8°C) | 0.1°F | 56th Coolest | Coolest since: | 1907 |
| 71st Warmest | Warmest since: | 2024 | ||||
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: County Rankings, published March 2025, retrieved on March 13, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/rankings
