May weather forecastAllyn-Grapeview, WA
May
Weather in May
The last month of the spring, May, is a comfortable month in Allyn-Grapeview, Washington, with an average temperature ranging between max 66.9°F (19.4°C) and min 44.4°F (6.9°C).Temperature
The onset of May marks a slight increase in the average high-temperature, moving from a mild 60.1°F (15.6°C) in April to an enjoyable 66.9°F (19.4°C). Allyn-Grapeview records a significant temperature drop in May nights, lowering to an average of 44.4°F (6.9°C).Rainfall
In Allyn-Grapeview, in May, during 10 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Allyn-Grapeview, during the entire year, the rain falls for 146 days and collects up to 52.17" (1325mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In May, the average length of the day is 15h and 8min.On the first day of May, sunrise is at 5:53 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:59 pm PDT.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Allyn-Grapeview, WA
- Average high temperature in May: 66.9°F
The warmest month (with the highest average high temperature) is July (77.1°F).
The month with the lowest average high temperature is January (44.4°F).
- Average low temperature in May: 44.5°F
The month with the highest average low temperature is August (52.6°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average rainfall in May
Allyn-Grapeview, WA
- Average rainfall in May: 2.1"
The wettest month (with the highest rainfall) is December (8.8").
The driest month (with the least rainfall) is July (0.8").
Average rainfall days in May
Allyn-Grapeview, WA
- Average rainfall days in May: 10 days
The month with the highest number of rainy days is December (19 days).
The month with the least rainy days is July (4 days).
Average snowfall in May
Allyn-Grapeview, WA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average daylight in May
Allyn-Grapeview, WA
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
