Dayton, Maryland Weather

21st Year of Service to the Local Community
Lat 39.24°N, Long 76.99°W, Elev 540ft (165m)


National Weather Service Forecasts for Central Maryland (Click Here)

National Weather Service Warnings for Central Maryland (Click Here)

Latest Weather Update at 12:16pm(EDT) on 8/19/19

 Temperature

Temperature (Warm)
Current: 86.8°F
    Rate of Change: 3.6°F/hr.
    High: 87.1°F at 12:13pm
    Low:  67.0°F at 6:45am

    Monthly High: 90.6°F on 8/18/19
    Monthly Low:  58.2°F on 8/10/19
    Yearly High:   93.4°F on 7/21/19
    Yearly Low:    0.7°F on 1/31/19
 

Humidity

Humidity & Related
Relative Humidity: 70%
    High: 100% at 7:36am
    Low:  70% at 12:14pm
Dew Point: 75.8°F
Heat Index: 97.1°F
    High: 99.4°F at 12:13pm

    Monthly High: 105.3°F on 8/18/19
    Yearly High:   114.2°F on 7/21/19
 
Wind Rose Wind & Related (Calm)
Current: West South West at 0mph
    High: 0mph at 12:00am
    Monthly High: 28mph on 8/18/19
    Yearly High:   49mph on 2/25/19
Wind Chill: 86.8°F
    Low: 67.0°F at 6:45am
    Monthly Low: 58.2°F on 8/10/19
    Yearly Low:   -9.9°F on 1/21/19
    Wind Run Today: 0 miles
    Wind Run Month: 7 miles
    Wind Run Year:   3845 miles
 
Barometric Pressure Barometric Pressure (Rising)
Current: 1016.8mb
    Rate of Change: 0.0 mb/hr
    High: 1017.0mb at 7:51am
    Low:  1015.0mb at 2:29am


Yearly High: 1043.8mb on 2/9/19
Yearly Low:  993.8mb on 1/20/19

 
Daily Rain   Precipitation
Today: 0.00in
    Hi Rain Rate:   0.00in/hr at 12:00am
    Current Hour:  0.00in
    Last 24 Hours: 0.01in
 
   This Month:     1.07in
    Year-to-Date:  32.71in
 
UV Index UV Index
Current: 7.2
    Today's  High: 7.2 at 12:15pm
    Monthly High:   8.8 on 8/7/19
    Yearly High:     8.8 on 7/24/19

Solar Radiation

Solar Radiation
Current: 777.0 W/m2
    Today's High: 777.0 W/m2  at 12:15pm
    Monthly High:  1060.0W/m2 on 8/7/19
    Yearly High:     1500.0W/m2 on 7/22/19
 
Evapotranspiration Evapotranspiration
Today: 0.05in
    Monthly High:  0.13in on 8/8/19
    Yearly High:     0.15in on 5/24/19
 
Cooling Degree Days Degree Days
Cooling Degrees Days
    Today:  3.4
    Month:  172.7
    Year:    855.3
Heating Degree Days
     Today: 0.0
     Month: 4.7
     Year:   2991.7
Beyond the Stratosphere

Solar/Lunar Stats

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