Historical weather data, all-time temperature records, and monthly climate averages for Greenfield, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Greenfield typically feels like spring in full swing, with average highs of 72° and lows around 42°. But the date has real range in its history — temperatures have swung from a 96° scorcher in 1989 down to a 29° freeze in 1955. Rain is unlikely, with just a 13% chance of precipitation.
Greenfield is no stranger to extremes — the thermometer hit a blistering 115° on September 2, 2017, and cratered to 14° on December 22, 1990, a span of 101 degrees between its all-time marks. Snow is rare but not mythical; a single storm dropped 5 inches on January 27, 1957, still the record to beat.
Greenfield runs warm and dry for most of the year, with highs climbing from the low 60s in January to a peak of around 85° from July through September. If you're chasing the best weather, late spring through early fall delivers consistent warmth with minimal rain. When precipitation does fall, it's almost entirely concentrated in winter — the last week of December averages the most, at 0.62 inches.