Climate Averages, Frost Dates, Hardiness Zones and Drought Conditions for Long Barn California Long Barn, CA's climate averages. Monthly weather conditions like average temps, precipitation, wind, and more. Long Barn's yearly averages for humidity, fog, sun, and snow days. Weather.com brings you the most accurate monthly weather forecast for Long Barn, CA with average/record and high/low temperatures, precipitation and more. The table below displays max and min temperature and rain data for the whole year as an average taken from last 12+ years of historical data for 95335, Long Barn. Long Barn, California, USA - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data. Long Barn, CA has a mild climate all year round with generally warm temperatures. In the summer months, temperatures can reach up to 80 degrees Fahrenheit during the day and drop to around 40 degrees Fahrenheit at night. Long Barn, California, experiences a mountain climate with four distinct seasons, featuring cold winters and warm summers. The average temperature ranges from a low of 32°F in December to a high of 90°F in July. See the current Long Barn, CA weather and a 5 day forecast. Also view: monthly average temperatures, precipitation, snow depth, wind speed, air quality and pollution. Modesto City-County-Sham Field is 55 miles from Long Barn, so the actual climate in Long Barn can vary a bit. Based on weather reports collected during 1992–2021. Be prepared with the most accurate 10-day forecast for Long Barn, California with highs, lows, chance of precipitation from The Weather Channel and Weather.com.