Storm Station
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At a river or reservoir gauge

DCP network, identified by the register

Identifier
GOYC1
Latitude
36.95830 N
Longitude
121.60060 W
Elevation
-
Listed
Automatically, on 657 reports in 169 hours over the last seven days
Observed
2:00 PMPDT, 42 minutes ago
Precipitation this hour
0in
Precipitation today
0in

Ranking Statistics

At a river or reservoir gauge

Drawn as the kind of place it stands at. 432 instruments in California stand at one.

Station charts

Castro Valley Report

Rank 1,449 of 4,465 in California, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

Ranking Statistics

247 score93.7of 100

California median
91.6the median score of 4,465 stations
Scoring higher
1,436stations in California
Sharing its score
23ranks 1,437 to 1,459
Points deducted
6.32.9 accuracy, 1.9 arrival, 0.8 reports received, 0.8 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; California median 85.6, 100.0, 92.4
Next above
UTCC1rank 1,444; ahead on median arrival 19 min 35 s against 19 min 36 s
Next below
UVSC1rank 1,452; behind on reports received 97.7% against 97.6%
Sharing its rank
2other stations, equal on every measure

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 3597.834.2 of 35 pointsCalifornia median 98.5657 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1080.88.1 of 10 pointsCalifornia median 81.2half its reports arrived within 20 min
  3. Continuityweight 10100.010.0 of 10 pointsCalifornia median 100.0longest silence 45 min, on a schedule of one report every 15 min
  4. Accuracyweight 20-17.1 of 20 points, at the medianCalifornia median 85.6-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianCalifornia median 100.0-
  6. Forecast checkweight 10-9.2 of 10 points, at the medianCalifornia median 92.4-

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 (45 min), none for 72 (18 h)
Accuracy
Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °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
Schedule
every 5 min
Reports received, 24 hours
284 of 28898.6% of its schedule
Reports received, 7 days
1,990 of 2,01698.7% of its schedule
Longest silence, 7 days
27 minfrom Oct 16, 2:15 PM
Latest report
Oct 16, 2:15 PMlocal time

The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 657 of 672 scheduled reports received, 97.7%.

Its schedule is one report every 5 min, 288 in 24 hours. Two reports in the same 5 min count as one received.

Chart of the 4,465 ranked stations in California on Oct 16 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 78; 10 to 19 per cent, 83; 20 to 29 per cent, 45; 30 to 39 per cent, 22; 40 to 49 per cent, 118; 50 to 59 per cent, 285; 60 to 69 per cent, 120; 70 to 79 per cent, 209; 80 to 89 per cent, 391; 90 to 99 per cent, 2,034; 100 per cent, 1,080. Castro Valley received 97.7 per cent, 657 of 672 scheduled reports, rank 1,449 of 4,465.WHERE IT RANKS IN CALIFORNIA, Oct 16THIS ONE: 97.7%, 657 OF 672, RANK 1,449 OF 4,465PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101001,0000 to 97810 to 198320 to 294530 to 392240 to 4911850 to 5928560 to 6912070 to 7920980 to 8939190 to 992,0341001,080STATIONS, LOG SCALE
Chart of Castro Valley's rank in California by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 1,802 of 3,089; 2026-09-27 rank 1,790 of 3,141; 2026-09-28 rank 1,825 of 3,395; 2026-09-29 rank 1,889 of 3,460; 2026-09-30 rank 1,847 of 3,491; 2026-10-01 rank 2,333 of 3,586; 2026-10-02 rank 1,488 of 3,944; 2026-10-03 rank 1,487 of 3,944; 2026-10-04 rank 1,429 of 4,072; 2026-10-05 rank 1,406 of 4,333; 2026-10-06 rank 1,435 of 4,362; 2026-10-07 rank 1,440 of 4,381; 2026-10-08 rank 1,462 of 4,405; 2026-10-09 rank 1,523 of 4,400; 2026-10-10 rank 1,537 of 4,400; 2026-10-11 rank 1,527 of 4,428; 2026-10-12 rank 1,487 of 4,446; 2026-10-13 rank 1,521 of 4,464; 2026-10-14 rank 1,634 of 4,466; 2026-10-15 rank 1,495 of 4,462; 2026-10-16 rank 1,449 of 4,465.ITS RANK IN CALIFORNIA, DAY BY DAYRANK, FIRST AT THE TOP11,0002,0003,000Sep 26Sep 30Oct 4Oct 8Oct 12Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%1,080
90 to 99%2,034
80 to 89%391
70 to 79%209
60 to 69%120
50 to 59%285
40 to 49%118
30 to 39%22
20 to 29%45
10 to 19%83
0 to 9%78
DayRankStations rankedShare received
Oct 16, 20261,4494,46597.7%
Oct 15, 20261,4954,46297.6%
Oct 14, 20261,6344,46696.5%
Oct 13, 20261,5214,46496.7%
Oct 12, 20261,4874,44697.0%
Oct 11, 20261,5274,42897.3%
Oct 10, 20261,5374,40097.3%
Oct 9, 20261,5234,40097.3%
Oct 8, 20261,4624,40597.4%
Oct 7, 20261,4404,38198.5%
Oct 6, 20261,4354,36298.3%
Oct 5, 20261,4064,33398.3%
Oct 4, 20261,4294,07298.2%
Oct 3, 20261,4873,94498.3%
Oct 2, 20261,4883,94498.3%
Oct 1, 20262,3333,58698.4%
Sep 30, 20261,8473,49199.1%
Sep 29, 20261,8893,46098.9%
Sep 28, 20261,8253,39599.2%
Sep 27, 20261,7903,14198.9%
Sep 26, 20261,8023,08998.9%
Reports received at Castro Valley, reports from 4.0 to 12.0, the latest 4.0, in reports.REPORTS RECEIVEDreports0510153 PM6 PM9 PMOct 163 AM6 AM9 AM12 PM
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 2 PM0.004
Fri 16, 1 PM0.0012
Fri 16, 12 PM0.0012
Fri 16, 11 AM0.0012
Fri 16, 10 AM0.009
Fri 16, 9 AM0.0012
Fri 16, 8 AM0.0012
Fri 16, 7 AM0.0012
Fri 16, 6 AM0.0012
Fri 16, 5 AM0.0012
Fri 16, 4 AM0.0012
Fri 16, 3 AM0.0012
Fri 16, 2 AM0.0012
Fri 16, 1 AM0.0012
Thu 15, 11 PM0.0012
Thu 15, 10 PM0.0012
Thu 15, 9 PM0.0012
Thu 15, 8 PM0.0012
Thu 15, 7 PM0.0012
Thu 15, 6 PM0.0012
Thu 15, 5 PM0.0012
Thu 15, 4 PM0.0012
Thu 15, 3 PM0.0012
Reports received at Castro Valley, reports from 4.0 to 12.0, the latest 4.0, in reports.REPORTS RECEIVEDreports051015Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15Fri 16
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Fri 16, 2 PM0.004
Fri 16, 1 PM0.0012
Fri 16, 12 PM0.0012
Fri 16, 11 AM0.0012
Fri 16, 10 AM0.009
Fri 16, 9 AM0.0012
Fri 16, 8 AM0.0012
Fri 16, 7 AM0.0012
Fri 16, 6 AM0.0012
Fri 16, 5 AM0.0012
Fri 16, 4 AM0.0012
Fri 16, 3 AM0.0012
Fri 16, 2 AM0.0012
Fri 16, 1 AM0.0012
Thu 15, 11 PM0.0012
Thu 15, 10 PM0.0012
Thu 15, 9 PM0.0012
Thu 15, 8 PM0.0012
Thu 15, 7 PM0.0012
Thu 15, 6 PM0.0012
Thu 15, 5 PM0.0012
Thu 15, 4 PM0.0012
Thu 15, 3 PM0.0012
Thu 15, 2 PM0.0012
Thu 15, 1 PM0.0012
Thu 15, 12 PM0.0012
Thu 15, 11 AM0.0012
Thu 15, 10 AM0.0012
Thu 15, 9 AM0.0012
Thu 15, 8 AM0.0012
Thu 15, 7 AM0.0012
Thu 15, 6 AM0.0012
Thu 15, 5 AM0.0012
Thu 15, 4 AM0.0012
Thu 15, 3 AM0.0012
Thu 15, 2 AM0.0012
Thu 15, 1 AM0.0012
Thu 15, 12 AM0.0012
Wed 14, 11 PM0.0012
Wed 14, 10 PM0.0012
Wed 14, 9 PM0.0012
Wed 14, 8 PM0.0012
Wed 14, 7 PM0.0012
Wed 14, 6 PM0.0012
Wed 14, 5 PM0.0012
Wed 14, 4 PM0.0012
Wed 14, 3 PM0.0012
Wed 14, 2 PM0.0012
Wed 14, 1 PM0.0012
Wed 14, 12 PM0.0012
Wed 14, 11 AM0.0012
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Tue 13, 11 PM0.0012
Tue 13, 10 PM0.0012
Tue 13, 9 PM0.0012
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Tue 13, 6 PM0.0012
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Mon 12, 11 PM0.0012
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Sun 11, 11 PM0.0012
Sun 11, 10 PM0.0012
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Sun 11, 6 PM0.0012
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Sun 11, 3 PM0.0012
Sun 11, 2 PM0.0010
Sun 11, 1 PM0.0012
Sun 11, 12 PM0.0012
Sun 11, 11 AM0.0012
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Sun 11, 2 AM0.0012
Sun 11, 1 AM0.0012
Sun 11, 12 AM0.009
Sat 10, 11 PM0.0012
Sat 10, 10 PM0.0012
Sat 10, 9 PM0.0012
Sat 10, 8 PM0.0012
Sat 10, 7 PM0.0012
Sat 10, 6 PM0.0010
Sat 10, 5 PM0.0012
Sat 10, 4 PM0.0012
Sat 10, 3 PM0.0012
Sat 10, 2 PM0.0012
Sat 10, 1 PM0.0012
Sat 10, 12 PM0.0012
Sat 10, 11 AM0.0012
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Sat 10, 2 AM0.0012
Sat 10, 1 AM0.0012
Sat 10, 12 AM0.0012
Fri 9, 11 PM0.0012
Fri 9, 10 PM0.0012
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Fri 9, 6 PM0.009
Fri 9, 5 PM0.0012
Fri 9, 4 PM0.0012
Fri 9, 3 PM0.0012

Near Castro Valley