Historical weather data, all-time temperature records, and monthly climate averages for Colorado Triangle, DC. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Brightwood sits in that classic spring transition zone — expect a high around 65° and a low of 41°, though the date has swung wildly from 85° (1963) to a bitter 25° (1965). Nearly a coin flip for rain at 47%, so keep an umbrella handy. The good news: snow is off the table entirely.
Brightwood plays for keeps on the extremes — 106° in July 2011 and -10° in January 1982 represent a 116-degree swing in the historical record. A single June day in 2006 dumped 7.37 inches of rain, and a January 1966 storm buried the neighborhood under 16 inches of snow.
Summer is the main event here, with highs averaging 90° the week of July 16-22 and the wettest stretch of the year falling just before that in early July. If you want mild and manageable, aim for late April through May (highs in the 70s) or September into October. January is the season to avoid, with average highs barely clearing 43° and the city's most brutal cold on record.