Historical weather data, all-time temperature records, and monthly climate averages for Lafayette, CO. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Lafayette runs mild but unpredictable — the average high is 61° with a low of 30°, but this date has swung from a balmy 79° in 2005 all the way down to 14° in 1985. There's an 18% chance of snow today, so don't put the scraper away just yet.
Lafayette plays for keeps on the extremes — 110° in August 2008 and -24° in December 1990 puts its temperature range at a jaw-dropping 134 degrees. A single December storm in 2006 dropped 21.8 inches of snow, and a summer thunderstorm in 1992 dumped 2.45 inches of rain in one day.
Summer is the main event here, with highs averaging 91° the week of July 9–15, while January and December sit at a modest 45–47°. Spring is the wettest stretch — late April averages the most precipitation of any week at 0.66 inches — so pack accordingly if you're visiting before May.