Precipitation

Precipitation amounts and their spatial and seasonal variations are basic to all hydrologic and natural resource studies. The original RCEW gauge network, established in 1960-1961, consisted of 83 unshielded 12“ (30.48 cm) weighing-recording gauges. Because most of the precipitation that falls on the higher elevations of RCEW is snow, there was a significant undercatch by the network of single, unshielded gauges. Undercatch of precipitation, especially of snow by gauges that are not protected naturally, is a major problem in obtaining accurate point measurements. Undercatch of snow is especially acute in windy environments such as those encountered on areas within the RCEW. Therefore, during 1967-1968, the network was converted to 46 dual-gauge installations which were designed to more accurately measure snowfall. The dual-gauge system consists of an unshielded and a shielded universal-recording gauge with orifices 3.05 m above ground. The shield is an Alter-type with the shield’s baffles individually constrained at an angle of 30° from vertical. The gauge network was further reduced in the mid-1990's and we now have 26 precipitation measurement sites. A very detailed report of the precipitation gauge network was published in 2001. Long-term precipitation database, Reynolds Creek Experimental Watershed. Idaho, United States.

This graph reflects the raw data that has been collected and may sometimes go wildly off-scale. Real data does that sometimes. To zoom in the time scale hold the left mouse button down and drag across the region of interest. To select a smaller y-data range hold the left mouse button down inside the graphed data area and drag to the scale of interest. To pan through time hold the shift key down and the drag the mouse left or right while holding the left button down. Double click to return to full time scale. It's not as hard to do as it sounds but it may take some practice.

The precipitation record is updated annually and is normally processed and completed in January for the following year. Click icon in “Site” column to download zipped data file.

SiteNameStartStop Years of
Record1)
Years of
Gaps
012 Little Salmon Creek 1962 2015 54 24 (1977-2000)
031 Upper Salmon Creek near Salmon Butte meteorological and raingage station 1968 2015 48 25 (1977-2000)
049 Summit raingage station 1965 2015 51 3 (1976-1979)
057 Flats weir and raingages and microclimate 1962 2015 54
076 Reynolds Quonset 1962 2015 54
095b Meteorological and raingage station southeast of Whisky Mountain 2003 2015 13
098c Nancy Gulch meteorological and raingage station 1972 2015 44 7 (1974-1980)
116c Raingage station near Tollgate weir 1962 2015 54
124 Meteorological and raingage station on RCEW boundary above Johnston Draw headwaters 1962 2015 54 18 (1985-2002)
124b Meteorological and raingage station at Johnston Draw headwaters 2006 2014 8
125 Meteorological and raingage station near Johnston Draw and Dobson Creek confluence 2002 2015 14
127 Lower Sheep Creek 1962 2015 54
13803 Upper Sheep Creek Weather Station at D03 1983 2015 33 2 (1995-1996)
138j10 Upper Sheep Creek Weather Station at J10 1983 2015 33 8 (1996-2003)
138l21 Upper Sheep Creek Weather Station at L21 2003 2014 11
144 Christmas Meadows meteorological and raingage station 1962 2015 54
145 Breaks meteorological and raingage station 1965 2015 51 26 (1976-2001)
147 Raingage station on divide between Peters Gulch and North Fork Peters Gulch headwaters 1962 2015 54
155 Raingage station near Democrat historic site 1962 2015 54
163 Meteorological and raingage station at Dobson Creek headwaters 1962 2015 54
166b Reynolds Mountain East Basin ridge site 2003 2013 10
167 Bull Meadow meteorological and raingage station 1962 2015 54
174 Headwaters of West Fork Reynolds Creek meteorological and raingage station 1962 2015 54
176 Reynolds Mountain exposed ridge meteorological and raingage station 1968 2015 48
rmsp3 Reynolds Mountain wind-sheltered meteorological and raingage station 1962 2015 54
1) Years are rounded from actual dates