Weather in May
Temperature
May's advent notes a subtle adjustment in average high-temperature to a still cool 54.7°F (12.6°C) from April. Cape Blanco State Park, in the month of May, notes an average low temperature of 45.7°F (7.6°C), indicating a small decrease from the daytime highs.Rainfall
In Cape Blanco State Park, in May, during 10 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 141 rainfall days, and 75.87" (1927mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In May, the average length of the day is 14h and 40min.On the first day of May, sunrise is at 6:10 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:49 pm PDT.
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Data Sources | Weather Forecasting & Climate
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Average temperature in May
Cape Blanco State Park, OR
- Average high temperature in May: 54.6°F
The warmest month (with the highest average high temperature) is September (59.4°F).
The month with the lowest average high temperature is January (50.8°F).
- Average low temperature in May: 45.7°F
The month with the highest average low temperature is August (50.3°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average rainfall in May
Cape Blanco State Park, OR
- Average rainfall in May: 3.2"
The wettest month (with the highest rainfall) is January (13.7").
The driest month (with the least rainfall) is July (0.5").
Average rainfall days in May
Cape Blanco State Park, OR
- Average rainfall days in May: 10 days
The months with the highest number of rainy days are January and December (19 days).
The month with the least rainy days is July (3 days).
Average snowfall in May
Cape Blanco State Park, OR
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.3").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average daylight in May
Cape Blanco State Park, OR
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
Cape Blanco State Park, Oregon, USA
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