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Best time to visit · Pennsylvania, United States
For the most comfortable weather in Kennett Square, aim for April & May and September & October. October tops our comfort score at 84/100, with highs around 65°F (19°C) and 4.4 in (111 mm) of rain. June – August and November are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
Highs run from 37°F to 87°F across the year, and the yearly total is about 48.3 in (1226 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 37°F3°C | 40°F4°C | 49°F9°C | 62°F17°C | 72°F22°C | 81°F27°C | 87°F30°C | 85°F30°C | 79°F26°C | 65°F19°C | 53°F12°C | 42°F6°C |
| Avg low | 22°F-5°C | 23°F-5°C | 30°F-1°C | 40°F5°C | 51°F11°C | 61°F16°C | 66°F19°C | 65°F18°C | 58°F14°C | 46°F8°C | 35°F2°C | 28°F-2°C |
| Rain/snow | 3.0 in76 mm | 3.0 in75 mm | 3.7 in94 mm | 3.8 in97 mm | 3.9 in98 mm | 4.9 in125 mm | 4.9 in125 mm | 4.7 in120 mm | 4.4 in112 mm | 4.4 in111 mm | 3.4 in87 mm | 4.2 in106 mm |
| Humidity | 85% | 84% | 81% | 78% | 78% | 76% | 71% | 72% | 73% | 78% | 81% | 86% |
| Cloud | 62% | 60% | 60% | 58% | 61% | 56% | 53% | 52% | 50% | 53% | 54% | 63% |
| Comfort | 45 | 46 | 58 | 80 | 83 | 76 | 68 | 72 | 83 | 84 | 68 | 44 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. The grid cell sits at about 105 m (345 ft), close to Kennett Square's own ~104 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The coldest season, with highs of 37–42°F (3–6°C) and lows down to 22°F (-5°C). It's the driest season, with only about 10.1 in (257 mm) of rain or snow, 21% of the year's total. December – February are cold enough for snow. It holds the toughest stretch on our comfort score (December – February), averaging 45/100.
Temperatures climb through the season, from 49°F highs in March to 72°F by May. About 11.4 in (289 mm) of rain falls across these months, 24% of the year's total. Nights dip below freezing in March. April & May are among the best-scoring months (season average 74/100).
Peak warmth: highs of 81–87°F (27–30°C). It's the wettest season, with about 14.6 in (370 mm) of rain, 30% of the year's total. June feels humid, with humidity near 76%. June – August score well without being the very best (season average 72/100).
Temperatures slide from 79°F highs in September to 53°F by November. About 12.2 in (310 mm) of rain falls across these months, 25% of the year's total. Lows bottom out around 35°F (2°C). September & October are among the best-scoring months (season average 78/100).
By comfort score: 5 Great, 3 Good, 3 Fair and 1 Tough. Great months: April – June and September & October. Tap a month for its own guide.
For the most comfortable weather in Kennett Square, aim for April & May and September & October. October tops our comfort score at 84/100, with highs around 65°F (19°C) and 4.4 in (111 mm) of rain. June – August and November are good shoulder-season months. The toughest months are December – February, mainly because of cool days.
June is the wettest month, averaging about 4.9 in (125 mm) of rain. February is the driest, with about 3.0 in (75 mm). The yearly total is around 48.3 in (1226 mm).
January is the coldest, with average lows of 22°F (-5°C) and highs of 37°F (3°C). The warmest is July, with average highs of 87°F (30°C).
Yes: in June humidity averages 76% with warm temperatures, so it feels muggy. Summer highs peak around 87°F (30°C).
On average, yes: lows fall below 32°F (0°C) in December – March, bottoming out around 22°F (-5°C) in January.
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