Updated October 2026
Seneca Creek State Park: Weather by Month and When to Go
Seneca Creek State Park is a state park in Maryland. Average highs range from 42°F in January to 87°F in July.
Average highs sit between 60°F and 80°F in April through May and September through October. They run above 80°F in June through August and below 60°F in November through March. The figures are NOAA climate normals for 1991–2020, measured at a weather station 9.7 miles from the park.
Warmest average high
87°F
July
Coldest average low
27°F
January
Most precipitation
4.0 in
June through July and September
Longest days
14.7 h
June
Seneca Creek State Park weather by month
| Month | Average high | Average low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 42°F | 27°F | 3.1 in | 9.5 h |
| February | 45°F | 28°F | 2.6 in | 10.5 h |
| March | 54°F | 36°F | 3.7 in | 11.7 h |
| April | 66°F | 46°F | 3.2 in | 13.0 h |
| May | 74°F | 55°F | 3.6 in | 14.1 h |
| June | 82°F | 64°F | 4.0 in | 14.7 h |
| July | 87°F | 69°F | 4.0 in | 14.5 h |
| August | 85°F | 67°F | 3.1 in | 13.5 h |
| September | 78°F | 60°F | 4.0 in | 12.2 h |
| October | 66°F | 48°F | 3.5 in | 10.9 h |
| November | 56°F | 38°F | 3.3 in | 9.8 h |
| December | 46°F | 31°F | 3.4 in | 9.3 h |
Temperature and precipitation figures are NOAA climate normals for 1991–2020 from station USC00187705, the nearest station with a complete set of temperature normals, 9.7 miles from the park. Conditions in the park can differ from the station's, most of all where the two sit at different elevations. Daylight is calculated for the park's latitude at the middle of each month.
What the averages show
- Temperature. July is the warmest month, with an average high of 87°F and an average low of 69°F. January is the coldest month, with an average low of 27°F and an average high of 42°F.
- Precipitation. June through July and September are the wettest months, each averaging 4.0 inches of precipitation, and February is the driest, at 2.6 inches. An average year brings about 41.5 inches in total.
- Snowfall. The station has no snowfall normal, so snowfall is left out of the table. That is a gap in the station's record, not a sign that it never snows here.
- Daylight. Days run from about 9.3 hours of daylight in December to 14.7 hours in June.
Camping, trails, maps and fees
Whether Seneca Creek State Park has camping or cabins, where its trails run, when it opens and what it charges are all published by the agency that runs the park. Its official page is the place to check before a trip.
Official Seneca Creek State Park page
For the forecast rather than the averages, the National Weather Service issues a point forecast for the park's location.
National Weather Service forecast for Seneca Creek State Park
Where to stay near Seneca Creek State Park
Hotels, cabins and vacation rentals near Seneca Creek State Park, with live availability and prices.
Top-rated places to stay near Seneca Creek State Park
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Frequently Asked Questions
July is the warmest month, with an average high of 87°F and an average low of 69°F. January is the coldest month, with an average low of 27°F and an average high of 42°F. These are NOAA 1991–2020 climate normals from a weather station 9.7 miles from the park.
Average highs sit between 60°F and 80°F in April through May and September through October. They run above 80°F in June through August and below 60°F in November through March.
June through July and September are the wettest months, each averaging 4.0 inches of precipitation, and February is the driest, at 2.6 inches. An average year brings about 41.5 inches in total. The station has no snowfall normal, so no snowfall figure is available.
Days run from about 9.3 hours of daylight in December to 14.7 hours in June. The hours are calculated for the park's latitude.
Nearest National Park Service sites
- Chesapeake & Ohio Canal National Historical Park8 miles away
- Wolf Trap National Park for the Performing Arts11 miles away
- George Washington Memorial Parkway13 miles away
Nearby state parks
- Greenbrier State Park34 miles away
- Cunningham Falls State Park35 miles away
- Sandy Point State Park49 miles away
- Codorus State Park53 miles away · Pennsylvania
Distances are measured in a straight line from the park, so the drive is longer.
Sources: NOAA NCEI U.S. Climate Normals 1991–2020; USGS Protected Areas Database for location; the official Maryland state park listing for the park's name.