Monocacy Creek at Bethlehem, PA
USGS 01452500 · Pennsylvania · reports discharge (live), gauge height
USGS 01452500 · Pennsylvania · reports discharge (live), gauge height
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 8:45 PM EST · provisional USGS data
Below normal for Nov 5 Steady · 24 h
Discharge, last 7 days: 169 readings from Oct 29, 10:00 PM EDT to Nov 5, 8:45 PM EST; ranging 20.2 to 25 ft³/s; latest 23.8 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 8:45 PM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 7:45 PM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 6:45 PM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 5:45 PM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 4:45 PM EST | 25 | 2.21 | 24–56 |
| Nov 5, 3:45 PM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 2:45 PM EST | 25 | 2.21 | 24–56 |
| Nov 5, 1:45 PM EST | 25 | 2.21 | 24–56 |
| Nov 5, 12:45 PM EST | 25 | 2.21 | 24–56 |
| Nov 5, 11:45 AM EST | 25 | 2.21 | 24–56 |
| Nov 5, 10:45 AM EST | 25 | 2.21 | 24–56 |
| Nov 5, 9:45 AM EST | 25 | 2.21 | 24–56 |
| Nov 5, 8:45 AM EST | 25 | 2.21 | 24–56 |
| Nov 5, 7:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 6:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 5:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 4:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 3:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 2:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 1:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 5, 12:45 AM EST | 23.8 | 2.2 | 24–56 |
| Nov 4, 11:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 10:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 9:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 8:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 7:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 6:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 5:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 4:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 3:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 2:45 PM EST | 25 | 2.21 | 25–54 |
| Nov 4, 1:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 12:45 PM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 11:45 AM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 10:45 AM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 9:45 AM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 8:45 AM EST | 23.8 | 2.2 | 25–54 |
| Nov 4, 7:45 AM EST | 22.6 | 2.19 | 25–54 |
| Nov 4, 6:45 AM EST | 21.4 | 2.18 | 25–54 |
| Nov 4, 5:45 AM EST | 21.4 | 2.18 | 25–54 |
| Nov 4, 4:45 AM EST | 21.4 | 2.18 | 25–54 |
| Nov 4, 3:45 AM EST | 21.4 | 2.18 | 25–54 |
| Nov 4, 2:45 AM EST | 21.4 | 2.18 | 25–54 |
| Nov 4, 1:45 AM EST | 21.4 | 2.18 | 25–54 |
| Nov 4, 12:45 AM EST | 21.4 | 2.18 | 25–54 |
| Nov 3, 11:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 10:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 9:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 8:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 7:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 6:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 5:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 4:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 3:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 2:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 1:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 12:45 PM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 11:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 10:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 9:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 8:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 7:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 6:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 5:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 4:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 3:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 2:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 1:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 3, 12:45 AM EST | 21.4 | 2.18 | 25–57 |
| Nov 2, 11:45 PM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 10:45 PM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 9:45 PM EST | 22.6 | 2.19 | 25–58 |
| Nov 2, 8:45 PM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 7:45 PM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 6:45 PM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 5:45 PM EST | 22.6 | 2.19 | 25–58 |
| Nov 2, 4:45 PM EST | 22.6 | 2.19 | 25–58 |
| Nov 2, 3:45 PM EST | 22.6 | 2.19 | 25–58 |
| Nov 2, 2:45 PM EST | 22.6 | 2.19 | 25–58 |
| Nov 2, 1:45 PM EST | 22.6 | 2.19 | 25–58 |
| Nov 2, 12:45 PM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 11:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 10:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 9:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 8:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 7:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 6:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 5:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 4:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 3:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 2:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 1:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 2, 12:45 AM EST | 21.4 | 2.18 | 25–58 |
| Nov 1, 11:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 10:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 9:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 8:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 7:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 6:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 5:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 4:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 3:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 2:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 1:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 12:45 PM EST | 21.4 | 2.18 | 23–58 |
| Nov 1, 11:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 10:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 9:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 8:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 7:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 6:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 5:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 4:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 3:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 2:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 1:45 AM EST | 20.2 | 2.17 | 23–58 |
| Nov 1, 1:49 AM EDT | 20.2 | 2.17 | 23–58 |
| Nov 1, 12:45 AM EDT | 21.4 | 2.18 | 23–58 |
| Oct 31, 11:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 10:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 9:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 8:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 7:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 6:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 5:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 4:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 3:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 2:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 1:47 PM EDT | 20.2 | 2.17 | 24–56 |
| Oct 31, 12:45 PM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 11:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 10:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 9:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 8:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 7:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 6:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 5:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 4:45 AM EDT | 21.4 | 2.18 | 24–56 |
| Oct 31, 3:45 AM EDT | 22.6 | 2.19 | 24–56 |
| Oct 31, 2:45 AM EDT | 22.6 | 2.19 | 24–56 |
| Oct 31, 1:45 AM EDT | 22.6 | 2.19 | 24–56 |
| Oct 31, 12:45 AM EDT | 22.6 | 2.19 | 24–56 |
| Oct 30, 11:45 PM EDT | 22.6 | 2.19 | 24–58 |
| Oct 30, 10:45 PM EDT | 22.6 | 2.19 | 24–58 |
| Oct 30, 9:45 PM EDT | 22.6 | 2.19 | 24–58 |
| Oct 30, 8:45 PM EDT | 22.6 | 2.19 | 24–58 |
| Oct 30, 7:45 PM EDT | 22.6 | 2.19 | 24–58 |
| Oct 30, 6:45 PM EDT | 22.6 | 2.19 | 24–58 |
| Oct 30, 5:45 PM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 4:45 PM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 3:45 PM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 2:45 PM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 1:45 PM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 12:45 PM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 11:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 10:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 9:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 8:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 7:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 6:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 5:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 4:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 3:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 2:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 1:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 30, 12:45 AM EDT | 23.8 | 2.2 | 24–58 |
| Oct 29, 11:45 PM EDT | 23.8 | 2.2 | 24–62 |
| Oct 29, 10:45 PM EDT | 23.8 | 2.2 | 24–62 |
| Oct 29, 10:00 PM EDT | 23.8 | 2.2 | 24–62 |
Map of USGS gauge 01452500 and the river around it
Where Monocacy Creek at Bethlehem, PA sits and our water's map point.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Pennsylvania Fish and Boat Commission uses are 60°F, 70°F and 72°F.
Species the agency lists for Monocacy Creek: Brown Trout.
Source: Class A Wild Trout Waters (Pennsylvania Fish and Boat Commission).
Normal for Nov 5: 24–56 ft³/s (middle half of 78 years of record). Now: 23.8 ft³/s, below normal.
Below normal for this date. 23.8 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 78 years of record (1949–2026): 10th 19, 25th 24, median 36, 75th 56, 90th 89 ft³/s.
Daily means on record for Nov 5: lowest 12 ft³/s, highest 221 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (+0% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
The National Weather Service has no flood-stage gauge here, so no official flood category is shown.
Checked Nov 5, 9:57 PM EST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.