Pilarcitos C Bl Spillway nr Hillsborough Ca River

USGS · 111626182

PILARCITOS C BL SPILLWAY NR HILLSBOROUGH CA RIVER

USGS · 111626182LIVE

PILARCITOS C BL SPILLWAY NR HILLSBOROUGH CA

SAN MATEO COUNTY, CA37.5477°N, -122.4209°W Updated 2 hr ago

FLOW RATE

2cfs

AIR TEMP

63°F

WIND

18mph WSW

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

2cfs 19.1% vs avg

Optimal band: 2–2 cfs

PERIOD HIGH

7cfs

PERIOD LOW

1cfs

RUNNABLE

54%

last 1 year in band

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

75°

53°

SUN

61°

52°

MON

63°

51°

TUE

62°

54°

WED

69°

53°

THU

65°

53°

FRI

71°

51°

TIME

SUN

NOW

MON

TUE

WED

THU

TEMP

hourly forecast

54°

mild

54°

53°

52°

54°

55°

57°

58°

59°

61°

60°

59°

58°

56°

54°

53°

52°

51°

52°

54°

57°

61°

63°

62°

61°

60°

58°

56°

55°

54°

55°

54°

55°

56°

57°

58°

59°

61°

62°

60°

59°

57°

56°

55°

54°

53°

54°

56°

59°

62°

65°

67°

69°

68°

67°

64°

62°

61°

59°

56°

53°

54°

53°

55°

57°

60°

62°

64°

65°

64°

63°

61°

59°

WIND

mph · gust · dir

11mph WSW

G 16 mph

G16

WSW

G17

WSW

G15

WSW

G16

WSW

G17

WSW

G14

WSW

G14

WSW

G16

WSW

G16

G18

G20

G23

WSW

G23

WSW

G24

WSW

G24

WSW

G24

WSW

G23

WSW

G22

WSW

G21

WSW

G19

WSW

G18

WSW

G16

WSW

G16

WSW

G16

WSW

G17

WSW

G17

WSW

G16

WSW

G17

WSW

G17

WSW

G13

WSW

G11

WSW

WNW

WSW

WNW

G10

WNW

PRECIP

chance %

CLOUDS

cover %

100%

overcast

100%

51%

97%

89%

22%

51%

11%

20%

12%

87%

100%

88%

54%

30%

18%

46%

65%

94%

100%

26%

34%

28%

20%

36%

25%

76%

86%

80%

88%

87%

93%

100%

83%

66%

27%

53%

38%

11%

34%

39%

44%

58%

64%

72%

82%

49%

10%

21%

PRESSURE

hPa · trend

990

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Strong

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:53 AM

SUNSET

08:34 PM

14H 41M OF DAYLIGHT

MOON PHASE

Waning Gibbous

74% illuminated

Station Location

37.5477, -122.4209

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DATA · USGS · NOAA · NWSUPDATED 2026-07-05 00:00 UTC

Site #111626182·USGS

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