Historical weather data, all-time temperature records, and monthly climate averages for Saint George, UT. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Saint George sits right in that sweet spot of desert spring — a 74° average high with almost no chance of rain (11%) and zero chance of snow. The date has seen wild swings over 130 years of records, from a scorching 91° in 1930 down to a bitter 23° in 1901.
Saint George plays for keeps when it comes to heat — the all-time high of 117° in July 1985 puts it among the hottest reliably recorded temperatures in the country. The cold side of the ledger is a footnote by comparison: -11° in January 1937 was a genuine anomaly for a place that averages 52° highs even in its coldest week.
Saint George is a winter escape and a summer test of will — highs sit in the comfortable 60s and 70s from November through April, then rocket past 100° from June through August. If you're heat-sensitive, aim for March through May or September through October; if you're visiting in July, pack accordingly for 102° average highs. Rain is scarce year-round, with the wettest stretch barely averaging a quarter-inch per week in early February.