After a few chilly days and cold nights and improvement in temperatures is right around the corner. Normal highs for late October are the mid 60s,but the District has not seen 60 degrees for the last 6 days! With a southwest wind direction over the next few days and less cloud coverage; however, the area will see above normal afternoon highs in days to come. Today will be near normal, tomorrow and Thursday 5-10 degrees above normal and then the clouds and showers move in again.
This up and down trend in temperatures and sky cover is typical for fall months in the Mid-Atlantic region, as nature's battle between the summer's heat and the impending winter cold clash across the region. Usually any front that moves across the area in October is a fast mover, as the upper level winds are more semi-zonal, allowing for little in the way of stalled fronts and prolonged periods of inclement weather (i.e. a cut-off lows). So has October 2009 been a "normal"month in D.C.? Having a look at the preliminary weather data at Reagan National, this is what has occurred thru the 19th:
7 overcast days, 1 sunny day , 11 days under partly cloudy skies
1 day with 1" + rain, 2 days with 1/2" of rain, 11 days with a trace to 1/10" of rain
85 warmest day (on the 8th)
39 the coldest day (on the 18th)
1 day of smoke/haze (on the 9th)
3 days with fog/mist (on the 15th,16th,17th)
So far, the month has showed 2/3" more rain that normal and has been 3.5 degrees cooler than the average October temperature of 61 degrees. Not bad...so far.
Photo Credit: Unisys