Lewiston Weather in May

What's the weather like in Lewiston (Idaho) in May 2024?

The climate in Lewiston during May can be summarized as mild and reasonably dry.

May is in the spring in Lewiston and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 7°C (45°F) is normal.

Lewiston weather averages (imperial / metric)
Daytime temperature 20.7°C 69.2°F
Nightly temperature 7°C 44.5°F
Average temperature 13.8°C 56.8°F
Daily sunshine 9.8 hrs
Avg rainfall 37 mm 1.5 ins
Rainy days 9 days
Sea temperature 9.4°C 48.9°F
Humidity 56%
Windspeed 15.1kph 9 mph

On average May is the 4th wettest month of the year in Lewiston with around 37mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.8 hours of sunshine per day.

May temperatures in Lewiston

Lewiston average temperature in May

May rainfall

Lewiston average rain in May

May hourly sunshine

Lewiston average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Lewiston in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Lewiston weather stats

Lewiston weather statistics
Hottest month: July 30.5°C 86.9°F
Driest month: July 17mm 0.7ins
Sunniest month: July 14.5hrs
Coldest month: January 3.4°C 38.1°F
Wettest month: January 41mm 1.6ins
Map showing location of Lewiston (46.41655, -117.01766) Lewiston map pin © Google

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