Historical weather data, all-time temperature records, and monthly climate averages for Bloomington, IN. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4 in Bloomington splits the difference between winter and spring — 128 years of data puts the average high at 62° and the low at 39°, though the date has pulled off everything from 84° warmth back in 1934 to a brutal 21° low in 1898. Rain is a real possibility today at 41%, but snow is nearly off the table at just 1%.
Bloomington's weather has real range — the thermometer has swung from a scorching 110° on July 14, 1936 to a bone-chilling -21° on January 21, 1985, a spread of 131 degrees. On the wet side, a single day in March 1913 dumped 6.56 inches of rain, while a January 1904 storm buried the city under 16 inches of snow.
Summer is the main event here, with late July averaging highs of 88° and the mercury staying above 80° from June through September. If you're cold-averse, steer clear of early January, when average highs barely crack 39°. The wettest stretch falls in mid-June, averaging 1.2 inches for the week, so pack accordingly if you're visiting for summer.