Dayton, Maryland Weather

23rd Year of Service to the Local Community
Lat 39.24°N, Long 76.99°W, Elev 600ft (183m)

National Weather Service Forecasts for Central Maryland (Click Here)

National Weather Service Warnings for Central Maryland (Click Here)

Latest Weather Update at 8:30pm(EDT) on 9/26/20


Temperature (Comfortable)
Current: 66.9°F
    Rate of Change: -0.4°F/hr.
    High: 69.8°F at 3:49pm
    Low:  61.7°F at 4:26am

    Monthly High: 86.3°F on 9/3/20
    Monthly Low:  40.8°F on 9/22/20
    Yearly High:    95.0°F on 7/20/20
    Yearly Low:    15.3°F on 2/15/20


Humidity & Related
Relative Humidity: 100%
    High: 100% at 1:28am
    Low:  93% at 3:44pm
Dew Point: 66.9°F
Heat Index: 74.1°F
    High: 76.1°F at 4:12pm

    Monthly High: 99.8°F on 9/3/20
    Yearly High:   115.3°F on 7/19/20
Wind Rose Wind & Related (Calm)
Current: South South West at 0mph
    High: 8mph at 9:34am
    Monthly High: 360 at 20mph on 9/1/20
    Yearly 0 at 42mph on 2/27/20
Wind Chill: 66.9°F
    Low: 61.7°F at 4:26am
    Monthly Low: 39.8°F on 9/19/20
    Yearly Low:   7.6°F on 1/20/20
    Wind Run Today: 0 miles
    Wind Run Month: 104 miles
    Wind Run Year:   3387 miles
Barometric Pressure Barometric Pressure (Rising)
Current: 1017.5mb
    Rate of Change: 0.2 mb/hr
    High: 1020.4mb at 12:00am
    Low:  1016.6mb at 4:27pm

Yearly High: 1044.4mb on 1/9/20
Yearly Low:  981.2mb on 2/7/20

Daily Rain   Precipitation
Today: 0.39in
    Hi Rain Rate:   0.16in/hr at 2:25am
    Current Hour:  0.00in
    Last 24 Hours: 0.40in
   This Month:     2.80in
    Year-to-Date:  38.96in
UV Index UV Index
Current: 0.0
    Today's  High: 4.5 at 2:21pm
    Monthly High:   10.0 on 9/2/20
    Yearly High:     10.0 on 5/2/20

Solar Radiation

Solar Radiation
Current: 0.0 W/m2
    Today's High: 345.0 W/m2  at 2:20pm
    Monthly High:  949.0W/m2 on 9/2/20
    Yearly High:     1345.0W/m2 on 6/14/20
Evapotranspiration Evapotranspiration
Today: 0.02in
    Monthly High:  0.11in on 9/6/20
    Yearly High:     0.16in on 6/7/20
Cooling Degree Days Degree Days
Cooling Degrees Days
    Today:  0.9
    Month:  108.5
    Year:    1090.7
Heating Degree Days
     Today: 1.2
     Month: 93.7
     Year:   2892.3
Beyond the Stratosphere

Solar/Lunar Stats

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