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Live/Water/Pennsylvania/Perkiomen Creek at Graterford

Perkiomen Creek at Graterford

A gauge on the Perkiomen Creek in Montgomery County, Pennsylvania. Its stage was 1.42 ft as of Oct 16, 12:15 AM EDT.

Gauge GRAP1Montgomery County, PennsylvaniaEvery gauge in Pennsylvania

Stage now
1.42 ftreported Oct 16, 12:15 AM EDT
24 hour change
Fell 0.15 ftsince Oct 15, 12:15 AM
Rank
721of 1,383 in Pennsylvania, Oct 16
Elevation
161 ftabove sea level
County
Montgomery County
Position
40.2333° N, 75.4500° W
Record since
2010

Water level

Perkiomen Creek at Graterford

Stage is the height of the water's surface above the gauge's own fixed zero, in feet, not the depth of the water. Every point drawn is a reading the gauge sent, at the time it sent it.

Water level, 24 hours at Perkiomen Creek at Graterford: the water from 1.42 to 1.56 feet of stage, the latest 1.42 feet.WATER LEVEL, 24 HOURSFTHIGH 1.56 FT, OCT 15, 1:30 AM · LOW 1.42 FT, OCT 15, 10:30 PM1.401.451.501.551.603 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 161.42
Latest
1.42 ftOct 16, 12:15 AM
Highest
1.56 ftOct 15, 1:30 AM
Lowest
1.42 ftOct 15, 10:30 PM
Range
0.14 fthighest less lowest
Change
Fell 0.14 ftsince Oct 15, 1:30 AM
Readings
92
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 12:15 AM1.42
Oct 16, 12:00 AM1.42
Oct 15, 11:45 PM1.42
Oct 15, 11:30 PM1.42
Oct 15, 11:15 PM1.42
Oct 15, 11:00 PM1.42
Oct 15, 10:45 PM1.42
Oct 15, 10:30 PM1.42
Oct 15, 10:15 PM1.43
Oct 15, 10:00 PM1.43
Oct 15, 9:45 PM1.43
Oct 15, 9:30 PM1.43
Oct 15, 9:15 PM1.43
Oct 15, 9:00 PM1.43
Oct 15, 8:45 PM1.43
Oct 15, 8:30 PM1.43
Oct 15, 8:15 PM1.43
Oct 15, 8:00 PM1.44
Oct 15, 7:45 PM1.44
Oct 15, 7:30 PM1.44
Oct 15, 7:15 PM1.44
Oct 15, 7:00 PM1.44
Oct 15, 6:45 PM1.45
Oct 15, 6:30 PM1.45
Oct 15, 6:15 PM1.45
Oct 15, 6:00 PM1.45
Oct 15, 5:45 PM1.45
Oct 15, 5:30 PM1.45
Oct 15, 5:15 PM1.46
Oct 15, 5:00 PM1.46
Oct 15, 4:45 PM1.46
Oct 15, 4:30 PM1.46
Oct 15, 4:15 PM1.46
Oct 15, 4:00 PM1.46
Oct 15, 3:45 PM1.47
Oct 15, 3:30 PM1.47
Oct 15, 3:15 PM1.47
Oct 15, 3:00 PM1.47
Oct 15, 2:45 PM1.48
Oct 15, 2:30 PM1.48
Oct 15, 2:15 PM1.48
Oct 15, 2:00 PM1.48
Oct 15, 1:45 PM1.49
Oct 15, 1:30 PM1.49
Oct 15, 1:15 PM1.49
Oct 15, 1:00 PM1.49
Oct 15, 12:45 PM1.49
Oct 15, 12:30 PM1.49
Oct 15, 12:15 PM1.50
Oct 15, 12:00 PM1.50
Oct 15, 11:45 AM1.50
Oct 15, 11:30 AM1.50
Oct 15, 11:15 AM1.50
Oct 15, 11:00 AM1.50
Oct 15, 10:45 AM1.50
Oct 15, 10:30 AM1.50
Oct 15, 10:15 AM1.50
Oct 15, 10:00 AM1.51
Oct 15, 9:45 AM1.51
Oct 15, 9:30 AM1.51
Oct 15, 9:15 AM1.51
Oct 15, 9:00 AM1.51
Oct 15, 8:45 AM1.51
Oct 15, 8:30 AM1.51
Oct 15, 8:15 AM1.52
Oct 15, 8:00 AM1.52
Oct 15, 7:45 AM1.52
Oct 15, 7:30 AM1.52
Oct 15, 7:15 AM1.52
Oct 15, 7:00 AM1.52
Oct 15, 6:45 AM1.52
Oct 15, 6:30 AM1.52
Oct 15, 6:15 AM1.53
Oct 15, 6:00 AM1.53
Oct 15, 5:45 AM1.53
Oct 15, 5:30 AM1.53
Oct 15, 5:15 AM1.53
Oct 15, 5:00 AM1.53
Oct 15, 4:45 AM1.53
Oct 15, 4:30 AM1.53
Oct 15, 4:15 AM1.53
Oct 15, 4:00 AM1.54
Oct 15, 3:45 AM1.54
Oct 15, 3:30 AM1.54
Oct 15, 3:15 AM1.54
Oct 15, 3:00 AM1.54
Oct 15, 2:45 AM1.55
Oct 15, 2:30 AM1.55
Oct 15, 2:15 AM1.55
Oct 15, 2:00 AM1.55
Oct 15, 1:45 AM1.56
Oct 15, 1:30 AM1.56
Water level, 7 days at Perkiomen Creek at Graterford: the water from 1.15 to 4.76 feet of stage, the latest 1.42 feet.WATER LEVEL, 7 DAYSFTHIGH 4.76 FT, OCT 12, 3:15 AM · LOW 1.15 FT, OCT 9, 8:15 PM123456Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 161.42
Latest
1.42 ftOct 16, 12:15 AM
Highest
4.76 ftOct 12, 3:15 AM
Lowest
1.15 ftOct 9, 8:15 PM
Range
3.61 fthighest less lowest
Change
Rose 0.25 ftsince Oct 9, 1:30 AM
Readings
668
The readings these charts were drawn from, as a table
TimeStage ft
Oct 16, 12:15 AM1.42
Oct 15, 11:45 PM1.42
Oct 15, 10:45 PM1.42
Oct 15, 9:45 PM1.43
Oct 15, 8:45 PM1.43
Oct 15, 7:45 PM1.44
Oct 15, 6:45 PM1.45
Oct 15, 5:45 PM1.45
Oct 15, 4:45 PM1.46
Oct 15, 3:45 PM1.47
Oct 15, 2:45 PM1.48
Oct 15, 1:45 PM1.49
Oct 15, 12:45 PM1.49
Oct 15, 11:45 AM1.50
Oct 15, 10:45 AM1.50
Oct 15, 9:45 AM1.51
Oct 15, 8:45 AM1.51
Oct 15, 7:45 AM1.52
Oct 15, 6:45 AM1.52
Oct 15, 5:45 AM1.53
Oct 15, 4:45 AM1.53
Oct 15, 3:45 AM1.54
Oct 15, 2:45 AM1.55
Oct 15, 1:45 AM1.56
Oct 15, 12:45 AM1.57
Oct 14, 11:45 PM1.58
Oct 14, 10:45 PM1.58
Oct 14, 9:45 PM1.58
Oct 14, 8:45 PM1.59
Oct 14, 7:45 PM1.59
Oct 14, 6:45 PM1.59
Oct 14, 5:45 PM1.60
Oct 14, 4:45 PM1.61
Oct 14, 3:45 PM1.62
Oct 14, 2:45 PM1.63
Oct 14, 1:45 PM1.63
Oct 14, 12:45 PM1.64
Oct 14, 11:45 AM1.64
Oct 14, 10:45 AM1.65
Oct 14, 9:45 AM1.66
Oct 14, 8:45 AM1.67
Oct 14, 7:45 AM1.68
Oct 14, 6:45 AM1.69
Oct 14, 5:45 AM1.70
Oct 14, 4:45 AM1.72
Oct 14, 3:45 AM1.73
Oct 14, 2:45 AM1.74
Oct 14, 1:45 AM1.75
Oct 14, 12:45 AM1.76
Oct 13, 11:45 PM1.77
Oct 13, 10:45 PM1.78
Oct 13, 9:45 PM1.80
Oct 13, 8:45 PM1.81
Oct 13, 7:45 PM1.83
Oct 13, 6:45 PM1.85
Oct 13, 5:45 PM1.87
Oct 13, 4:45 PM1.90
Oct 13, 3:45 PM1.91
Oct 13, 2:45 PM1.93
Oct 13, 1:45 PM1.94
Oct 13, 12:45 PM1.96
Oct 13, 11:45 AM1.98
Oct 13, 10:45 AM2.00
Oct 13, 9:45 AM2.03
Oct 13, 8:45 AM2.05
Oct 13, 7:45 AM2.08
Oct 13, 6:45 AM2.11
Oct 13, 5:45 AM2.13
Oct 13, 4:45 AM2.17
Oct 13, 3:45 AM2.20
Oct 13, 2:45 AM2.23
Oct 13, 1:45 AM2.28
Oct 13, 12:45 AM2.32
Oct 12, 11:45 PM2.36
Oct 12, 10:45 PM2.41
Oct 12, 9:45 PM2.46
Oct 12, 8:45 PM2.51
Oct 12, 7:45 PM2.57
Oct 12, 6:45 PM2.64
Oct 12, 5:45 PM2.70
Oct 12, 4:45 PM2.78
Oct 12, 3:45 PM2.86
Oct 12, 2:45 PM2.94
Oct 12, 1:45 PM3.02
Oct 12, 12:45 PM3.12
Oct 12, 11:45 AM3.23
Oct 12, 10:45 AM3.36
Oct 12, 9:45 AM3.51
Oct 12, 8:45 AM3.69
Oct 12, 7:45 AM3.91
Oct 12, 6:45 AM4.16
Oct 12, 5:45 AM4.39
Oct 12, 4:45 AM4.61
Oct 12, 3:45 AM4.73
Oct 12, 2:45 AM4.74
Oct 12, 1:45 AM4.61
Oct 12, 12:45 AM4.44
Oct 11, 11:45 PM4.12
Oct 11, 10:45 PM3.91
Oct 11, 9:45 PM3.35
Oct 11, 8:45 PM2.76
Oct 11, 7:45 PM2.19
Oct 11, 6:45 PM1.65
Oct 11, 5:45 PM1.46
Oct 11, 4:45 PM1.36
Oct 11, 3:45 PM1.29
Oct 11, 2:45 PM1.26
Oct 11, 1:45 PM1.23
Oct 11, 12:45 PM1.20
Oct 11, 11:45 AM1.20
Oct 11, 10:45 AM1.19
Oct 11, 9:45 AM1.17
Oct 11, 8:45 AM1.16
Oct 11, 7:45 AM1.16
Oct 11, 6:45 AM1.16
Oct 11, 5:45 AM1.16
Oct 11, 4:45 AM1.16
Oct 11, 3:45 AM1.16
Oct 11, 2:45 AM1.16
Oct 11, 1:45 AM1.16
Oct 11, 12:45 AM1.16
Oct 10, 11:45 PM1.16
Oct 10, 10:45 PM1.15
Oct 10, 9:45 PM1.15
Oct 10, 8:45 PM1.16
Oct 10, 7:45 PM1.16
Oct 10, 6:45 PM1.16
Oct 10, 5:45 PM1.16
Oct 10, 4:45 PM1.16
Oct 10, 3:45 PM1.16
Oct 10, 2:45 PM1.16
Oct 10, 1:45 PM1.16
Oct 10, 12:45 PM1.16
Oct 10, 11:45 AM1.16
Oct 10, 10:45 AM1.16
Oct 10, 9:45 AM1.16
Oct 10, 8:45 AM1.15
Oct 10, 7:45 AM1.15
Oct 10, 6:45 AM1.15
Oct 10, 5:45 AM1.15
Oct 10, 4:45 AM1.15
Oct 10, 3:45 AM1.16
Oct 10, 2:45 AM1.16
Oct 10, 1:45 AM1.16
Oct 10, 12:45 AM1.15
Oct 9, 11:45 PM1.15
Oct 9, 10:45 PM1.15
Oct 9, 9:45 PM1.15
Oct 9, 8:45 PM1.15
Oct 9, 7:45 PM1.16
Oct 9, 6:45 PM1.16
Oct 9, 5:45 PM1.17
Oct 9, 4:45 PM1.18
Oct 9, 3:45 PM1.18
Oct 9, 2:45 PM1.17
Oct 9, 1:45 PM1.16
Oct 9, 12:45 PM1.17
Oct 9, 11:45 AM1.17
Oct 9, 10:45 AM1.17
Oct 9, 9:45 AM1.17
Oct 9, 8:45 AM1.17
Oct 9, 7:45 AM1.17
Oct 9, 6:45 AM1.17
Oct 9, 5:45 AM1.17
Oct 9, 4:45 AM1.17
Oct 9, 3:45 AM1.17
Oct 9, 2:45 AM1.17
Oct 9, 1:45 AM1.17
Water level, 30 days at Perkiomen Creek at Graterford: the water from 1.06 to 4.76 feet of stage, the latest 1.42 feet.WATER LEVEL, 30 DAYSFTHIGH 4.76 FT, OCT 12, 3:15 AM · LOW 1.06 FT, SEP 17, 11:15 AM123456Sep 16Sep 21Sep 26Oct 1Oct 6Oct 111.42
Latest
1.42 ftOct 16, 12:15 AM
Highest
4.76 ftOct 12, 3:15 AM
Lowest
1.06 ftSep 17, 11:15 AM
Range
3.70 fthighest less lowest
Change
Rose 0.31 ftsince Sep 16, 1:30 AM
Readings
2,837
The readings these charts were drawn from, as a table
DayHigh ftLow ftAverage ftLast ftReadings
Oct 161.421.421.421.422
Oct 151.571.421.491.4296
Oct 141.771.581.651.5896
Oct 132.351.772.011.7796
Oct 124.762.363.432.3696
Oct 114.121.161.614.1296
Oct 101.161.151.161.1696
Oct 91.181.151.171.1596
Oct 81.201.101.151.1796
Oct 71.131.101.121.1196
Oct 61.181.121.151.1296
Oct 51.201.161.181.1696
Oct 41.211.181.191.1896
Oct 31.281.211.261.2196
Oct 21.361.281.321.2896
Oct 11.481.341.411.3696
Sep 301.701.481.581.4892
Sep 292.261.701.931.7096
Sep 282.622.262.502.2696
Sep 272.671.181.812.5996
Sep 261.191.151.171.1896
Sep 251.261.181.221.1896
Sep 241.431.261.331.2696
Sep 231.721.431.561.4396
Sep 221.771.611.681.7296
Sep 212.431.752.121.7592
Sep 202.151.081.372.1579
Sep 191.101.071.081.0790
Sep 181.121.081.101.0896
Sep 171.121.061.091.1292
Sep 161.111.091.101.1086

How it reports

Rank
721of 1,383 in Pennsylvania, Oct 16
Schedule
every houron the hour's :15
Reports received, 24 hours
23 of 2495.8% of its schedule, 26 reports in all
Reports received, 7 days
167 of 16899.4% of its schedule, 184 reports in all
Longest silence, 7 days
2 hoursfrom Oct 15, 12:15 PM
Latest report
Oct 16, 12:15 AMlocal time
Time to reach Storm Station
26 min9 in 10 within 28 min
Against its reference, 30 days
-0.1 °Fcooler than the airport station KPTW, 5.5 miles away, on average over 374 readings; typical difference 2.6 °F; also compared with 2 other reference stations

From Storm Station's own record of every report it heard from this station.

Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.

Its schedule is one report every hour, 24 in 24 hours. Two reports in the same hour count as one received.

Ranking Statistics

247 score94.1of 100

Pennsylvania median
94.3the median score of 1,383 stations
Scoring higher
720stations in Pennsylvania
Sharing its score
2ranks 721 to 722
Points deducted
5.93.1 arrival, 1.9 accuracy, 0.7 forecast check, 0.2 reports received
Counted at the median
Forecast checknot measured at this station; Pennsylvania median 92.9
Next above
PA-PT-2rank 720; ahead on 247 score 94.3 against 94.1
Next below
MNSP1rank 722; behind on reports received 99.4% against 98.2%

Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.

  1. Reports receivedweight 3599.434.8 of 35 pointsPennsylvania median 95.8167 of 168 scheduled reports received in 7 days
  2. Arrivalweight 1069.06.9 of 10 pointsPennsylvania median 94.8half its reports arrived within 26 min
  3. Continuityweight 10100.010.0 of 10 pointsPennsylvania median 100.0longest silence 2 h, on a schedule of one report every 60 min
  4. Accuracyweight 2090.518.1 of 20 pointsPennsylvania median 100.0its temperature against the airport station KPTW, 5.5 miles away, over 185 readings: typical difference 2.7 °F beyond a steady offset of -0.4 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsPennsylvania median 100.00 of 185 readings failed their check against its reference station
  6. Forecast checkweight 10-9.3 of 10 points, at the medianPennsylvania median 92.9-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (3 h), none for 72 (72 h)
Accuracy
Full marks within 2.0 °F of its reference, typically, none beyond 8.6 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F

Near Perkiomen Creek at Graterford

How to read a gauge

A gauge measures the height of the water where it stands, its stage, in feet above a fixed mark at that gauge. Two gauges' stages are not comparable: each is measured from its own mark, and a reservoir's is often its height above sea level.

The stage shown is the latest the gauge reported, with the time it reported it. Storm Station hears each gauge on its own schedule and ranks it among its state's stations by its 247 score, how reliably it reports and how its readings hold up: that is its 247 rank.