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 8:45pm(EDT) on 9/26/21


Temperature [Heat Stress (---)]
Current: 58.9°F
    Rate of Change: -2.3°F/hr.
    High: 71.9°F at 2:35pm
    Low: 52.5°F at 6:59am

    Monthly High: 86.5°F on 9/15/21
    Monthly Low: 48.6°F on 9/25/21
    Yearly High:   94.3°F on 8/13/21
    Yearly Low:    18.3°F on 2/21/21


Humidity & Related
Relative Humidity: 89%
    High: 97% at 12:00am
    Low:  48% at 2:02pm
Dew Point: 55.7°F
Heat Index: 64.4°F
    High: 73.0°F at 2:35pm

    Monthly High: 95.0°F on 9/14/21
    Yearly High:   115.4°F on 8/13/21
Wind Rose Wind & Related (Calm)
Current: WNW at 0mph
    High Today: 20mph at 2:17pm
    Monthly High: 30mph on 9/23/21
    Yearly High:   50mph on 6/21/21
Wind Chill: 58.9°F
    Low: 52.5°F at 6:59am
    Monthly Low: 48.6°F on 9/25/21
    Yearly Low:     6.3°F on 1/29/21
    Wind Run Today: 10 miles
    Wind Run Month: 143 miles
    Wind Run Year:  7107 miles
Barometric Pressure Barometric Pressure (Rising)
Current: 1018.1mb
    Rate of Change: 0.4mb/hr
    High: 1019.2mb at 10:22am
    Low:  1016.2mb at 12:49am

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

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:    6.30in
Year-to-Date:  33.63in

UV Index UV Index
Current: 0.0
    Today's High: 4.5 at 12:27pm
    Monthly High: 8.0 on 9/4/21
    Yearly High:   9.5 on 8/20/21

Solar Radiation

Solar Radiation
Current: 0.0 W/m2
    Today's High: 766.0 W/m2  at 1:15pm
    Monthly High: 1092.0W/m2 on 9/4/21
    Yearly High:   1239.0W/m2 on 4/16/21
Evapotranspiration Evapotranspiration
Today: 0.10in
    Monthly High:  0.14in on 9/2/21
    Yearly High:     0.18in on 6/5/21
Cooling Degree Days Degree Days
Cooling Degrees Days
   Today:  1.3
   Month:  131.9
   Year:    1198.6
Heating Degree Days
    Today: 3.9
    Month: 46.5
    Year:   2915.7
Beyond the Stratosphere

Solar/Lunar Stats

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