15.8 mapped river miles, draining 36 square miles, in the Schuylkill River basin watershed. A USGS gauge stands in it, but its record is too short for a measured July mean, so what this page knows about its temperature is today's reading and PA DEP's classification of the water itself.
50°F and colder is cold, through cold-transitional and cool, to warm above 70°F — the same four bands, breaking at 58, 64 and 70°F, that the app paints. Grey is water nobody has measured.
This gauge stands in Perkiomen Creek. Its record is too short for a July mean, so the class below is PA DEP's — but the reading is this water.
PA DEP's classification of this water, reach by reach. A class, not a temperature — no July mean, because none was measured here.
| Reach | Typed miles | Band | PA DEP type |
|---|---|---|---|
| RM 15.8–15.0 | 2.0 | cool | — |
| RM 15.8–15.8 | 2.3 | cold | — |
| RM 15.8–7.3 | 8.9 | cool | — |
| RM 7.3–0.0 | 21.4 | warm | — |
PA DEP has classified 34.6 of the 40 miles NHD carries for this stream — 87% of it. The typed water splits 21.4 mi warm, 10.9 mi cool, 2.3 mi cold. The untyped reaches are not warm water — they are water PA DEP's inventory does not reach, and the mile ranges above span only the reaches it does.
PA DEP classifies this water as Cold Water Fishes, Trout Stocking, and Warm Water Fishes. More than one class appears because the classification changes along the river. The thermal bar above shows where. The management tier on those reaches is Cold Water Fishes, Trout Stocking, Warm Water Fishes. This is a designation of the fishery, not the season and creel rules — those change yearly and live with the agency.
16 units of public or open-access land touch this river, 10,880 acres in total. Acreage is the whole unit, not the part beside the water.
| Unit | Owner | Acres |
|---|---|---|
| Green Lane Park | county land | 3,308 |
| Green Lane Reservoir | county land | 2,421 |
| Camelot Park | county land | 154 |
| Rahmer Park | city land | 43 |
| Upper Perkiomen Valley | county land | 524 |
| William Rahmer Memorial Park | city land | 32 |
| Spring Mountain | county land | 116 |
| Foy Park | county land | 6 |
| Municipal Land | city land | 3,529 |
| Peevy Road Open Space | city land | 88 |
PA DEP designates this as trout water — Cold Water Fishes, Trout Stocking — without naming the species. No fish survey or stocking record for this water is in the files this site reads.
7 named streams meet this one. Confluence miles are above the mouth; the longest twelve are listed.
Perkiomen Creek sits in HUC 8 02040203, the Schuylkill River basin, and drains 36 square miles, Strahler order 4 at the mouth. 102 NHD reaches carry the name for 39.9 miles in total — more than the 15.8 miles of drawn mainstem, because NHD counts side channels and braids as their own reaches.
The closest 6 rivers on this site, straight-line from the middle of this one — not drive time.