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 11:15pm(EDT) on 12/10/18

 Temperature

Temperature (Uncomfortably Cold)
Current: 24.8°F
    Rate of Change: -0.7°F/hr.
    High: 37.9°F at 1:52pm
    Low:  23.8°F at 7:51am

    Monthly High: 57.1°F on 12/2/18
    Monthly Low:  20.2°F on 12/8/18
    Yearly High:   96.1°F on 7/2/18
    Yearly Low:    1.5°F on 1/7/18
 

Humidity

Humidity & Related
Relative Humidity: 91%
    High: 91% at 11:14pm
    Low:  66% at 1:57pm
Dew Point: 22.6°F
Heat Index: 30.6°F
    High: 40.5°F at 1:52pm

    Monthly High: 64.3°F on 12/2/18
    Yearly High:   112.5°F on 7/3/18
 
Wind Rose Wind & Related (Calm)
Current: North at 0mph
    High: 14mph at 9:47am
    Monthly High: 32mph on 12/3/18
    Yearly High:   56mph on 11/10/18
Wind Chill: 24.8°F
    Low: 18.0°F at 9:07am
    Monthly Low: 18.0°F on 12/10/18
    Yearly Low:   -10.0°F on 1/5/18
    Wind Run Today: 4 miles
    Wind Run Month: 149 miles
    Wind Run Year:   5292 miles
 
Barometric Pressure Barometric Pressure (Rising)
Current: 1024.5mb
    Rate of Change: 0.3 mb/hr
    High: 1024.5mb at 11:15pm
    Low:  1020.8mb at 3:46am


Yearly High: 1045.7mb on 2/13/18
Yearly Low:  994.9mb on 1/13/18

 
Daily Rain   Precipitation
Today: 0.00in
    Hi Rain Rate:   0.00in/hr at 12:00am
    Current Hour:  0.00in
    Last 24 Hours: 0.00in
 
   This Month:     0.45in
    Year-to-Date:  62.36in
 
UV Index UV Index
Current: 0.0
    Today's  High: 0.8 at 9:27am
    Monthly High:   1.4 on 12/3/18
    Yearly High:     9.1 on 7/23/18

Solar Radiation

Solar Radiation
Current: 0.0 W/m2
    Today's High: 299.0 W/m2  at 10:25am
    Monthly High:  436.0W/m2 on 12/3/18
    Yearly High:     1246.0W/m2 on 5/23/18
 
Evapotranspiration Evapotranspiration
Today: 0.01in
    Monthly High:  0.04in on 12/3/18
    Yearly High:     0.18in on 5/2/18
 
Cooling Degree Days Degree Days
Cooling Degrees Days
    Today:  0.0
    Month:  0.0
    Year:    1331.1
Heating Degree Days
     Today: 34.8
     Month: 284.0
     Year:   4330.1
Beyond the Stratosphere

Solar/Lunar Stats

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