The Damn Fly Meter There’s An App For That

How Bad Are The Flies At The Beach Today, What Is The DFM?

Probably the most popular or asked question on every locals page coast wide. How bad are the flies at the beach today? Those gnarly biting black marsh flies. We all know a west wind is the worst for conditions and the DFM will be a 10. DFM, if you aren’t in the know is the Damn Fly Meter. We now have an official app for that!

DFM. damn fly meter, dam fly meter
Damn Fly Meter app icon

We were asked what is the DFM so many times in messenger this summer (500 times a weekend), that we decided there needs to be an app for that.
In September 2019 we launched the beta version for testing on he website. Now the app has been launched in the test mode.
One condition we are working on is temperature, the very hot hundred degree days are worse than the eighty degree days.

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Currently the Damn Fly Meter is a test app right now, but easy to use. It has been approved for the Google Play store in test mode. Soon it will be available for iPhone.
Just select your state, New Jersey to North Carolina. Then select the beach areas listed. Once you choose a beach, the DFM will pop up with the number 0 to 10. Then the conditions are shown from 1 to 10 as a rating, not the number of flies. There may be a couple of bugs in he app they are working on.
A DFM of 10 is the worst, and obviously a 0 is the least. We have a few tweaks to make for specific beach areas. For instance if you are at the point in Cape Henlopen State Park bayside, select Lewes Beach.

DFM 0 to 4 … none to very little flies not annoying at all

DFM 4 to 6 small amount of flies. Stay away from objects that block wind. They will start to reside in your vehicle, close the windows.


DFM 6 to 8 The flies are numerous and will be very annoying.


DFM 8 to 10 … The flies are horrible, stay home or stand in the water to avoid being bit.
Lock your vehicle doors and hide your children

Damn Fly Meter reading is from 1 to 10

We hope this helps everyone knowing the DFM ahead of time. The app uses up to date data.
It does not change as you leave the page open, that is being worked on as well. It is always good to know ahead of time if you will need a gallon of bug juice or a flame thrower to deal with the flies.

Fish On!
Rich King

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