Dayton, Maryland Weather

24th Year of Service to the Local Community
Lat 39.24°N, Long 76.99°W, Elev 540ft (168m)


National Weather Service Forecasts for Central Maryland (Click Here)
National Weather Service Warnings for Central Maryland (Click Here)

Latest Weather Update at 5:14pm(EDT) on 7/27/21

 Temperature

Temperature [Heat Stress (Caution)]
Current: 86.7°F
    Rate of Change: -0.6°F/hr.
    High: 89.8°F at 2:20pm
    Low: 68.1°F at 6:43am

    Monthly High: 91.9°F on 7/7/21
    Monthly Low: 59.1°F on 7/4/21
    Yearly High:   92.9°F on 6/30/21
    Yearly Low:    18.3°F on 2/21/21
 

Humidity

Humidity & Related
Relative Humidity: 49%
    High: 100% at 9:14am
    Low:  46% at 4:47pm
Dew Point: 65.3°F
Heat Index: 88.6°F
    High: 98.4°F at 2:42pm

    Monthly High: 109.9°F on 7/12/21
    Yearly High:   109.9°F on 7/12/21
 
Wind Rose Wind & Related (Calm)
Current: NW at 0mph
    High Today: 10mph at 2:47pm
    Monthly High: 25mph on 7/1/21
    Yearly High:   50mph on 6/21/21
Wind Chill: 86.7°F
    Low: 68.1°F at 6:43am
    Monthly Low: 59.1°F on 7/4/21
    Yearly Low:     6.3°F on 1/29/21
    Wind Run Today: 2 miles
    Wind Run Month: 92 miles
    Wind Run Year:  6856 miles
 
Barometric Pressure Barometric Pressure (Falling)
Current: 1015.3mb
    Rate of Change: -0.3mb/hr
    High: 1017.0mb at 11:36am
    Low:  1014.8mb at 3:49am


Yearly High: 1040.0mb on 2/21/21
Yearly Low:  997.8mb on 4/11/21

 
Daily Rain Precipitation

Today: 0.01in
    Hi Rain Rate:   0.01in/hr at 3:43am
    Current Hour:  0.00in
    Last 24 Hours: 0.15in

This Month:    2.74in
Year-to-Date:  21.38in

 
UV Index UV Index
Current: 0.0
    Today's High: 6.2 at 1:19pm
    Monthly High: 8.5 on 7/3/21
    Yearly High:   8.8 on 6/26/21

Solar Radiation

Solar Radiation
Current: 76.0 W/m2
    Today's High: 882.0 W/m2  at 1:00pm
    Monthly High: 1216.0W/m2 on 7/3/21
    Yearly High:   1239.0W/m2 on 4/16/21
 
Evapotranspiration Evapotranspiration
Today: 0.16in
    Monthly High:  0.17in on 7/1/21
    Yearly High:     0.18in on 6/5/21
 
Cooling Degree Days Degree Days
Cooling Degrees Days
   Today:  8.6
   Month:  290.9
   Year:    702.7
Heating Degree Days
    Today: 0.0
    Month: 6.1
    Year:   2862.3
Beyond the Stratosphere

Solar/Lunar Stats

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