Weather in May
Temperature
The shift into May is accompanied by a temperature increase, with the average high-temperature rising from an icy 39.2°F (4°C) in April to a fresh 50.5°F (10.3°C). In the month of May, an average of 35.2°F (1.8°C) marks the low-temperature.Rainfall
In Iliamna, in May, it is raining for 9 days, with typically 1.18" (30mm) of accumulated precipitation. In Iliamna, during the entire year, the rain falls for 133 days and collects up to 25.55" (649mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. Throughout May, Iliamna aggregates 0.98" (25mm) of snow. Throughout the year, 59.21" (1504mm) of snow is accumulated.Daylight
In May, the average length of the day in Iliamna is 17h and 10min.On the first day of the month, sunrise is at 6:15 am and sunset at 10:17 pm. On the last day of May, sunrise is at 5:10 am and sunset at 11:24 pm AKDT.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Iliamna have in May?
When are sunrise and sunset in May in Iliamna?
Average temperature in May
Iliamna, AK
- Average high temperature in May: 50.6°F
The warmest month (with the highest average high temperature) is July (62.5°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in May: 35.3°F
The month with the highest average low temperature is July (48.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average rainfall in May
Iliamna, AK
- Average rainfall in May: 1.2"
The wettest month (with the highest rainfall) is August (4.6").
The driest months (with the least rainfall) are February, March and April (1.1").
Average rainfall days in May
Iliamna, AK
- Average rainfall days in May: 9 days
The months with the highest number of rainy days are August and September (16 days).
The months with the least rainy days are March and April (8 days).
Average snowfall in May
Iliamna, AK
- Average snowfall in May: 1"
The month with the highest snowfall is December (11.8").
The months with the least snowfall are June, July, August and September (0").
Average daylight in May
Iliamna, AK
- Average daylight in May: 17h and 1min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
Iliamna, Alaska, USA
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