Historical weather data, all-time temperature records, and monthly climate averages for Jefferson City, MO. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Jefferson City lands right in the heart of spring transition — expect a high near 65° and low around 39°, with a 41% shot at rain. The date's range is wild though: it hit 96° back in 1929 and dropped to 17° as recently as 1987, so the calendar doesn't guarantee anything here.
Jefferson City has seen genuine extremes over its 130+ years of records — from a scorching 114° in July 1901 to a bone-chilling -25° in February 1899, a spread of 139 degrees. A single December day in 1895 dumped 7.5 inches of rain, and a January 1995 snowstorm buried the city under 14 inches in one shot.
Summer is the dominant season here, with late July averaging a sizzling 91° high and the heat holding strong through August at 89°. If you're cold-averse, avoid January through February when highs hover in the low-to-mid 40s. Plan around rain in late May — it's the wettest stretch of the year, averaging over an inch of precipitation in a single week.