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Climate and Weather in Lewiston, Idaho

Lewiston is a city located in north-central Idaho, nestled in the Lewis-Clark Valley where the Clearwater and Snake Rivers meet. The city experiences a semi-arid climate, characterized by hot, dry summers and cold winters. Let's explore the climate and weather patterns in Lewiston throughout the year.

Summer (June - August)

Summers in Lewiston are typically hot and dry, making it the hottest time of the year. Average high temperatures range from the mid-80s to low 90s Fahrenheit (29-34 degrees Celsius), with occasional spikes into the upper 90s (35-37 degrees Celsius). The region benefits from an abundance of sunshine during this season, with clear skies prevailing. It is advisable to stay hydrated and protect yourself from the strong sun rays during this time.

The summer season is also the driest period in Lewiston, with only a few days of rainfall. On average, the city receives less than an inch of precipitation during each summer month. However, occasional thunderstorms can occur, bringing brief heavy downpours and lightning.

Fall (September - November)

Fall in Lewiston brings milder temperatures and a beautiful display of colors as the leaves change. Average highs range from the mid-70s to low 80s Fahrenheit (24-28 degrees Celsius) in September, dropping to the 50s to low 60s Fahrenheit (10-16 degrees Celsius) in November.

During the fall months, rainfall begins to increase, with October being the wettest month. Visitors can expect around 1.5 to 2 inches of rain during this season. It is advisable to pack a light jacket or sweater for the cooler evenings.

Winter (December - February)

Winter in Lewiston is characterized by cold temperatures and occasional snowfall. Average highs during the winter months range from the mid-30s to low 40s Fahrenheit (1-5 degrees Celsius), with overnight lows dropping below freezing. Snowfall is relatively light compared to other parts of Idaho, averaging around 10-15 inches per year.

Winter storms occasionally pass through the region, bringing heavier snowfall and strong winds. However, these events are usually short-lived and followed by sunny days. It is recommended to dress warmly and be prepared for changing weather conditions during this season.

Spring (March - May)

Spring in Lewiston is a transitional season, with temperatures gradually warming up and nature coming back to life. Average highs range from the mid-50s to low 60s Fahrenheit (13-16 degrees Celsius) in March, reaching the high 60s to low 70s Fahrenheit (20-22 degrees Celsius) by May.

Rainfall remains moderate during the spring months, with April being the wettest month. Visitors can expect around 1.5 to 2 inches of precipitation during this time. The region starts to bloom, with vibrant colors and blossoming flowers.

Severe Weather

While Lewiston does not experience extreme weather events like hurricanes or tornadoes, it is prone to occasional thunderstorms during the summer months. These storms can bring heavy rain, lightning, and gusty winds. It is important to stay updated with weather forecasts and take necessary precautions during such events.

Conclusion

Lewiston, Idaho, experiences a semi-arid climate with hot, dry summers and cold winters. The city enjoys abundant sunshine, especially during the summer months, and experiences moderate rainfall throughout the year. Visitors to Lewiston should be prepared for the changing weather patterns and pack accordingly to ensure a comfortable and enjoyable stay.