Riverton weather
Best months for weather: May–Sep. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Riverton, Utah, United States.
Best Time to Visit
Peak season May–SepOff season Nov–Mar
Riverton weather by month
When is the best time to visit Riverton?
Based on weather alone, the best time to visit Riverton is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 1°C (33°F) in December to 32°C (89°F) in July.
What is the rainiest month in Riverton?
December is the wettest month, with about 68 mm (2.7 in) of rain on average. July is the driest, with about 19 mm (0.7 in).
What is the hottest month in Riverton?
July is the warmest, with average highs of 32°C (89°F) and lows of 18°C (64°F). December is the coolest, with highs of 1°C (33°F) and lows of -8°C (17°F).
Does Riverton have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is December at about 68 mm (2.7 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months