In Twin Falls, the summers are hot and mostly clear, the winters are very cold and partly cloudy, and it is dry year round. Over the course of the year, the temperature typically varies from 23°F to 90°F and is rarely below 9°F or above 97°F.
Based on the tourism score, the best time of year to visit Twin Falls for warm-weather activities is from late June to late August.
The hot season lasts for 3.0 months, from June 13 to September 12, with an average daily high temperature above 79°F. The hottest day of the year is July 26, with an average high of 90°F and low of 62°F.
The cold season lasts for 3.1 months, from November 20 to February 24, with an average daily high temperature below 46°F. The coldest day of the year is December 30, with an average low of 23°F and high of 36°F.
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Twin Falls experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.0 months, from September 21 to June 20, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around May 16, with an average total accumulation of 1.1 inches.
The rainless period of the year lasts for 3.0 months, from June 20 to September 21. The least rain falls around July 14, with an average total accumulation of 0.2 inches.
The sliding 31-day liquid-equivalent quantity of snowfall in Twin Falls does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.