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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2025
341602117110401 Willow Creek Precipitation Gage at Lake Arrowhead, CA
LOCATION - Lat 34°16'02", long 117°11'04" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 sec.10, T.2 N., R.3 W., San Bernardino County, CA, Hydrologic Unit 18090208, 20 ft west of Willow Creek Road, 0.2 mi north of Lake Arrowhead Tavern Bay and 1.3 mi north of Lake Arrowhead.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - January 2009 to October 31, 2015 (discontinued).
INSTRUMENTATION - Recording tipping-bucket rain gage with heater for melting solid precipitation in operation since January 2009. Altitude of gage is 5,110 ft above NGVD 1929 from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum daily precipitation of 4.03 in. recorded on Feb. 16, 2009; no precipitation recorded for many days.
REMARKS - Records fair. Gage is known to sometimes under-record solid precipitation when the heater is insufficient to melt solid precipitation at the accumulated rate. The gage may also record precipitation occurrence after a snowfall event has ceased as a result of slow melting of accumulated solid precipitation.
