Riverdale weather

 Latitude N 38° 57' 31"    Longitude W 76° 56' 09"    Elevation 122 ft

Records began on 10 December 2010. Here are the extremes recorded since then.

Records Since 10 December 2010
Temperature and Humidity
Highest Temperature 104.2 °F at 3:30 PM on 22 July 2011
Lowest Temperature 4.1 °F at 6:44 AM on 07 January 2014
Highest Dew Point 84.6 °F at 11:50 AM on 22 July 2011
Lowest Dew Point -17.7 °F at 2:40 PM on 22 January 2011
Highest Apparent Temperature 119.5 °F at 3:50 PM on 22 July 2011
Lowest Apparent Temperature -10.9 °F at 4:52 AM on 07 January 2014
Lowest Wind Chill Temperature -13.8 °F at 4:52 AM on 07 January 2014
Highest Heat Index 134.6 °F at 4:40 PM on 22 July 2011
Highest Minimum 85.1 °F at 6:10 AM on 22 July 2011
Lowest Maximum 16.8 °F at 3:37 PM on 07 January 2014
Highest Humidity 100 % at 4:22 AM on 03 October 2012
Lowest Humidity 10 % at 2:30 PM on 15 February 2011
Highest Daily Range 38.0 °F on 06 January 2014
Lowest Daily Range 2.4 °F on 22 January 2012
Rainfall
Highest Rain Rate 14.05 in/hr at 9:07 AM on 27 January 2012
Highest Hourly Rainfall 1.26 in at 11:21 PM on 19 July 2012
Highest Daily Rainfall 5.33 in on 29 October 2012
Highest Monthly Rainfall 9.34 in June 2013
Longest Dry Period 24 days to 21 December 2013
Longest Wet Period 9 days to 03 July 2013
Wind
Highest Wind Gust 61.5 mph at 3:40 PM on 25 February 2011
Highest Wind Speed Average 55.5 mph at 1:38 PM on 27 March 2011
Highest Daily Wind Run 432.1 miles on 19 February 2011
Pressure
Lowest Pressure (sl) 28.652 in at 10:44 PM on 29 October 2012
Highest Pressure (sl) 30.805 in at 11:18 PM on 29 November 2013
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