| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 52.7 | 29.0 | 82 | -3 | 4.0 | 0.6 |
| February | 56.7 | 31.5 | 83 | -1 | 3.3 | 0.2 |
| March | 64.7 | 37.6 | 88 | 4 | 4.2 | 0.2 |
| April | 73.9 | 45.7 | 96 | 21 | 3.9 | 0.0 |
| May | 80.8 | 55.3 | 102 | 28 | 3.5 | 0.0 |
| June | 87.3 | 64.5 | 105 | 38 | 4.2 | 0.0 |
| July | 90.6 | 68.1 | 106 | 50 | 3.8 | 0.0 |
| August | 88.8 | 67.0 | 106 | 47 | 4.4 | 0.0 |
| September | 83.3 | 60.7 | 105 | 37 | 3.7 | 0.0 |
| October | 73.4 | 48.0 | 100 | 16 | 3.1 | 0.0 |
| November | 62.9 | 36.8 | 90 | 9 | 3.4 | 0.0 |
| December | 55.0 | 31.4 | 80 | -5 | 4.1 | 0.1 |
| Entire year | 72.6 | 48.1 | 106 | -5 | 45.3 | 1.1 |
|
More Chester Weather Records
1922–2024
|
||
|---|---|---|
| Highest daily low | 80 °F | July 8, 1926 |
| Lowest daily high | 19 °F | January 8, 1988 |
| Greatest daily range (Difference of high and low) |
64 °F | November 25, 1935 |
| Greatest difference in daily high over two conscutive days |
36 °F | Jan 20–21, 1935 |
| Most daily precipitation | 8.4 inches | August 23, 1967 |
| Most monthly precipitation | 15.2 inches | August 1967 |
| Most yearly precipitation | 64.6 inches | 1964 |
| Most yearly days with precipitation | 130 | 2020 |
| Earliest snow in season | December 3 | 1971 |
| Latest snow in season | April 3 | 2019 |
| Most daily snow | 7.5 inches | February 9, 1967 |
| Most monthly snow | 16.5 inches | March 1960 |
| Most yearly snow | 16.5 inches | 1960 |
| Most snow in a winter | 20.0 inches | 1935–1936 |
| Greatest snow accumulation | 12.0 inches | February 27, 2004 |
| Earliest freeze | October 7 | 1991 |
| Earliest day ≥ 90 °F | April 7 | 2010 |
| Earliest day ≥ 100 °F | May 23 | 1941 |
| Latest freeze | May 9 | 1989 |
| Latest day ≥ 90 °F | November 2 | 1961 |
| Latest day ≥ 100 °F | October 6 | 1954 |
| Most days in a year < 0 °F | 1 | 1985 |
| Most days in a year < 32 °F | 105 | 1960 |
| Most days in a year ≥ 80 °F | 179 | 1925 |
| Most days in a year ≥ 90 °F | 120 | 1925 |
| Most days in a year ≥ 100 °F | 22 | 1954 |
|
Chester Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 12 days | Sep 25 – Oct 6, 2015 |
| Without precipitation | 46 days | Aug 29 – Oct 13, 1954 |
| High temperature at or below freezing |
6 days | Jan 10–15, 1982 |
| High temperature ≥ 80 °F | 126 days | May 21 – Sep 23, 1939 |
| High temperature ≥ 90 °F | 55 days | Jun 30 – Aug 23, 1925 |
| High temperature ≥ 100 °F | 6 days | Jun 24–29, 1952 |
| Years | Station | Coordinates |
|---|---|---|
| 1922–2024 | Chester 1 SE | location |