Arrien Reservoir, Malheur County, Oregon     User input for Arrien Reservoir, Malheur County, Oregon: Be the first to submit input for Arrien Reservoir. Help improve this web site with your great input. Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines        Lots of folks from Ontario come to Arrien Reservoir, and a lovely lake like Big Swale Reservoir is a nice spot to stop at. Arrien Reservoir Number Six is a nice lake in the vicinity of Arrien Reservoir. Arrien Reservoir is pretty dry regularly; December is the wettest month with most snow while July is commonly the driest month. Summertime highs at Arrien Reservoir usually tend to be in the 80's, and through summer nights temperatures are in the 50's. For       the duration of the winter this place gets highs in the 30's while the cold winter nights at Arrien Reservoir are in the 10's.     Current weather conditions at Arrien Reservoir, Malheur County, Oregon Local climate location: BEULAH 11 miles away   Coordinates: Latitude: 43.61083 Longitude: -117.9386 Oregon Lakes Complete list of all lakes in Oregon Malheur County Lakes Complete list of all lakes in Malheur County Books about Arrien Reservoir List of books available on Amazon.com about Arrien Reservoir, Malheur County, Oregon. Outdoors Recreation Near Ontario, Oregon-Idaho Very comprehensive list of a variety of outdoors recreation in the vicinity of Ontario, Oregon-Idaho, the metro area neareast to Arrien Reservoir. Find info on campgrounds, hiking trails, ski resorts, lakes, beaches, parks, whitewater and more. Oregon Outdoors Index This is a very comprehensive index of outdoors activities in the great state of Oregon.     These outdoors activities are available near Arrien Reservoir.   Lakes Near Arrien Reservoir: Arrien Reservoir Number Six, Malheur CountyCounty, 1 miles away Big Swale Reservoir, Malheur CountyCounty, 2 miles away