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 9:33pm(EDT) on 7/22/18

 Temperature

Temperature (Comfortable)
Current: 71.9°F
    Rate of Change: -1.3°F/hr.
    High: 77.0°F at 5:59pm
    Low:  62.5°F at 6:39am

    Monthly High: 96.1°F on 7/2/18
    Monthly Low:  57.8°F on 7/8/18
    Yearly High:   96.1°F on 7/2/18
    Yearly Low:    1.5°F on 1/7/18
 

Humidity

Humidity & Related
Relative Humidity: 90%
    High: 93% at 12:00am
    Low:  78% at 12:45pm
Dew Point: 68.8°F
Heat Index: 77.5°F
    High: 82.3°F at 5:59pm

    Monthly High: 112.5°F on 7/3/18
    Yearly High:   112.5°F on 7/3/18
 
Wind Rose Wind & Related (Calm)
Current: West South West at 0mph
    High: 4mph at 12:05am
    Monthly High: 29mph on 7/16/18
    Yearly High:   54mph on 3/2/18
Wind Chill: 71.9°F
    Low: 62.5°F at 6:39am
    Monthly Low: 57.8°F on 7/8/18
    Yearly Low:   -10.0°F on 1/5/18
    Wind Run Today: 0 miles
    Wind Run Month: 10 miles
    Wind Run Year:   4133 miles
 
Barometric Pressure Barometric Pressure (Rising)
Current: 1012.7mb
    Rate of Change: 0.5 mb/hr
    High: 1012.8mb at 9:25pm
    Low:  1003.7mb at 1:27am


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

 
Daily Rain   Precipitation
Today: 0.21in
    Hi Rain Rate:   0.14in/hr at 3:13pm
    Current Hour:  0.01in
    Last 24 Hours: 1.10in
 
   This Month:     5.60in
    Year-to-Date:  30.21in
 
UV Index UV Index
Current: 0.0
    Today's  High: 8.0 at 12:20pm
    Monthly High:   8.3 on 7/7/18
    Yearly High:     8.9 on 6/4/18

Solar Radiation

Solar Radiation
Current: 0.0 W/m2
    Today's High: 944.0 W/m2  at 3:19pm
    Monthly High:  1132.0W/m2 on 7/11/18
    Yearly High:     1246.0W/m2 on 5/23/18
 
Evapotranspiration Evapotranspiration
Today: 0.06in
    Monthly High:  0.16in on 7/9/18
    Yearly High:     0.18in on 5/2/18
 
Heating Degree Days Degree Days
Cooling Degrees Days
    Today:  4.7
    Month:  236.3
    Year:    624.0
Heating Degree Days
     Today: 0.5
     Month: 5.1
     Year:   3067.9
Beyond the Stratosphere

Solar/Lunar Stats

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