Climate Insights for Harlan County Lake Seaplane Base

The climate in Harlan County Lake Seaplane Base is temperate. The average annual temperature is 12°C and approximately 796mm of precipitation falls per year. May is the wettest month, receiving around 163mm of rainfall. Harlan County Lake Seaplane Base is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, February, December, when temperatures can drop to -6°C. Snowfall occurs from January to December, with around 82cm accumulating over the season.

Harlan County Lake Seaplane Base has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is July, when average highs reach 33°C and the mean temperature sits around 26°C. The coldest month is January, when overnight lows fall to -6°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 9°C shift in average temperatures.

Harlan County Lake Seaplane Base is a relatively dry area, receiving approximately 796mm of precipitation annually, which averages out to around 66mm per month. The wettest month is May, averaging 163mm of rainfall. August and July also tend to see above-average precipitation. The driest month is February, with just 23mm. That's 140mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 82cm accumulating over the season. February typically sees the most snow at around 20cm.

Harlan County Lake Seaplane Base is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently spring in Harlan County Lake Seaplane Base, which began on March 20, 2026. Harlan County Lake Seaplane Base is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 33°C, while the coldest stretch bottoms out in January near -6°C. Summer is next, beginning on June 21, 2026 — 6 days from now.

The best time to visit Harlan County Lake Seaplane Base is during June and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 65mm per month. By contrast, July can be uncomfortably hot with highs reaching 33°C, while January is the coldest period with lows dropping to -6°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Harlan County Lake Seaplane Base based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.