Monocacy River
River in Maryland, read from 4 USGS gauges, draining about 961 square miles. Figures refresh every fifteen minutes.
Discharge
6,320
cfs · 22 min ago
Normal for today
157
cfs median, 3 yrs
Water temp
62
°F · 1h ago
Gage height
6.80
ft
Gauges on this water
Reading by reach
Reading the number
On this date the gauge has averaged 157 cfs over 3 years of record, with the middle half of years falling between 130 and 278 cfs. Today is above that band, so expect more push and colour than a typical October day here.
Regional hatch calendar
What is likely hatching near Monocacy River
Monocacy River does not have its own verified chart yet. This calendar is combined from the verified charts on Susquehanna River (44 mi), Juniata River (56 mi), Tulpehocken Creek (80 mi). Treat it as regional timing, and file a report if you see something different here.
| Insect | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Caddis | January: absent | February: absent | March: absent | April: active | May: peak | June: peak | July: active | August: active | September: active | October: active | November: absent | December: absent |
| Crayfish | January: absent | February: absent | March: absent | April: active | May: active | June: peak | July: peak | August: peak | September: active | October: active | November: absent | December: absent |
| Damselfly | January: absent | February: absent | March: absent | April: absent | May: absent | June: active | July: peak | August: peak | September: active | October: absent | November: absent | December: absent |
| Grasshopper | January: absent | February: absent | March: absent | April: absent | May: absent | June: absent | July: active | August: peak | September: peak | October: active | November: absent | December: absent |
| Hellgrammite | January: absent | February: absent | March: absent | April: absent | May: active | June: peak | July: peak | August: active | September: active | October: absent | November: absent | December: absent |
| Light Cahill | January: absent | February: absent | March: absent | April: absent | May: active | June: peak | July: active | August: absent | September: absent | October: absent | November: absent | December: absent |
| Sculpin | January: absent | February: absent | March: active | April: active | May: active | June: active | July: active | August: active | September: peak | October: peak | November: active | December: absent |
| White Fly | January: absent | February: absent | March: absent | April: absent | May: absent | June: absent | July: peak | August: peak | September: absent | October: absent | November: absent | December: absent |
| Blue-Winged Olive | January: absent | February: absent | March: active | April: peak | May: active | June: absent | July: absent | August: absent | September: active | October: peak | November: active | December: absent |
| Little Black Stonefly | January: absent | February: absent | March: peak | April: active | May: absent | June: absent | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
| Midge | January: peak | February: peak | March: active | April: absent | May: absent | June: absent | July: absent | August: absent | September: absent | October: absent | November: active | December: peak |
| Sulphur | January: absent | February: absent | March: absent | April: active | May: peak | June: active | July: absent | August: absent | September: absent | October: absent | November: absent | December: absent |
Reports
From anglers on Monocacy River
No reports filed here yet. The first one becomes the page’s local knowledge, stamped with the flow at the time. File a report.