Aurora averages 16 days a year above 90°F, with May the wettest month at 4.86 in of normal rain. The hottest day on record was 103°F on Jun 25, 1988; the coldest, −26°F on Jan 20, 1985. The single biggest 24-hour rain event recorded was 16.91 in on Jul 18, 1996.
Climate and Average Weather Year Round in Aurora
Year-round temperature
In Aurora, the warmest months are June through September, with average daily highs between 76°F and 84°F. The coldest stretch runs December through February, with highs between 31°F and 36°F and overnight lows reaching 16°F.
Rainfall through the year
Rainfall in Aurora averages 3.3 in per month over the long run. May is the wettest at 4.9 in, while February is the driest at 1.8 in.
Days at 90 °F or hotter
Aurora averages 16.0 days per year at 90 °F or hotter. The hottest year on record saw 44 such days (2012); the coolest just 1 (2004).
Precipitation this year
As of May 29, Aurora has received 13.8 in of precipitation this year — 6% below the long-term normal for this point in the year (14.6 in).