Historical weather data, all-time temperature records, and monthly climate averages for West Valley, UT. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in West Valley runs mild but unpredictable — the average high of 60° sounds pleasant, but this date has swung from a scorching 82° back in 1959 to a brutal 15° low in 1955. There's a 28% chance of precipitation today, so don't put that umbrella away just yet.
West Valley plays for keeps on both ends of the thermometer, spanning a jaw-dropping 129 degrees between its all-time records: a 107° scorcher on June 15, 2021 and a -22° freeze on January 25, 1949. October has a wild side too — the snowiest day on record dropped 13.8 inches back in 1984, the same month that later produced the wettest day ever with 2.47 inches of rain in 2025.
Summer is the main event here, with highs peaking around 93–94° in mid-July before a gradual slide back to a cool 35° average by New Year's week. Spring is the wettest stretch, with late April being the soggiest week of the year at roughly 0.59 inches. If you're chasing sunshine and warmth without peak summer heat, September's 80° average highs are hard to beat.