Historical weather data, all-time temperature records, and monthly climate averages for Susanville, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Susanville sits right on the edge of winter's last gasp — expect a high near 58° and a low that can still flirt with freezing at 32°. The date's full range tells the story: a balmy 81° back in 1930, and a brutal 17° as recently as 2012. There's only a 15% chance of rain today, so the odds favor a cool but dry spring day.
Susanville earns its stripes as a high-desert mountain town with records that pull no punches — 106° in the summer heat of July 1928 and a bone-chilling -23° on a February morning in 1956, a swing of nearly 130 degrees. A single January day in 1897 dumped over 5 inches of rain, and a March storm in 1907 buried the town under 26 inches of snow in 24 hours.
Susanville runs hot in summer and cold in winter, with peak highs averaging 90° in late July and bottoming out around 40° in early January. If you're chasing warmth, June through September is your window; if you're avoiding cold, the shoulder months of April and October offer the most forgiving conditions. Winter brings the wettest weather, with mid-January averaging nearly three-quarters of an inch per week.