Bradycardia can be caused by: 1  Changes in the heart that are the result of aging.  Diseases that damage the heart's electrical system. These include coronary artery disease, heart attack, and infections such as endocarditis and myocarditis.
Portland Weather In May. The highest recorded temperature in May for Portland for the past 70 years was 100 degrees Fahrenheit, most recently measured on May 28, 1983, and the normal high is 67.
As expected, winters are wet along the northern Oregon coast towns such as Astoria, Seaside and Tillamook. Tillamook has the highest monthly precipitation average in the region, which peaks in December at just under 14 inches.Winter temperatures along the north coast are relatively mild, with highs in the upper 40s to low 50s.Low temperatures tend to stay above 36 degrees F.s expected, winters are wet along the northern Oregon coast towns such as Astoria, Seaside and Tillamook. Tillamook has the highest monthly precipitation average in the region, which peaks in December at just under 14 inches.