Black Rock Retreat

Best time to visit Black Rock Retreat

Best months: April–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

1. Jan

   39° / 22°

   11 wet · 2 snow

2. Feb

   42° / 23°

   9 wet · 3 snow

3. Mar

   50° / 31°

   11 wet · 1 snow

4. Apr

   63° / 40°

   11 wet

5. May

   72° / 50°

   12 wet

6. Jun

   80° / 60°

   11 wet

7. Jul

   85° / 65°

   11 wet

8. Aug

   83° / 63°

   10 wet

9. Sep

   76° / 56°

   9 wet

10. Oct

    65° / 44°

    9 wet

11. Nov

    53° / 33°

    9 wet

12. Dec

    43° / 27°

    11 wet · 1 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Octoraro Lake, PA, 6.1 mi away at 260 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.