Frequently Asked Questions

List of Questions

You will have access to over 3.2 million locations. With one subscription, you can plan an event in one location and a vacation on the opposite side of the world.

You gain immediate access to long range forecasts for 6 months out from the date of your purchase. If you already have purchased months, 6 months are added to your subscription. However, only 18 months out are accessible at a given time.

You gain immediate access to long range forecasts for 12 months out from the date of your purchase. If you already have purchased months, 12 months are added to your subscription. However, only 18 months out are accessible at a given time.

You gain immediate access to long range forecasts for 18 months out from the date of your purchase. If you already have purchased months, 18 months are added to your subscription. However, only 18 months out are accessible at a given time.

You can purchase more than 18 months but only 18 months can be viewed at a given time. For example, if you have 3 months remaining and you purchase an additional 18 months, your subscription is valid for 21 months. However, only 18 months out are accessible at a given time.

Sharing is a feature that allows you to easily share a single month for a single location. It is as easy as printing a forecast. Just click the share button and you will be prompted for an email address. Fill in the address and off it goes. The recipient will receive a link to the forecast that will be valid for one week.

Sharing is limited to five per month. If you want to share more, (i.e. send a months forecast to everyone in your office or family) just send us an email.

Most 5-7 day weather forecasts through the various media sources change every few hours making them worthless for planning past a day or two. Our weather forecasts never change once they are published. The calculated weather values will not change, so our weather forecast for 18 months from now has the same expected accuracy as our forecast for tomorrow.

Due to our unique methodology, developed over the last fifty years, we can offer you a weather forecast that is found nowhere else on the market. Unlike other forecasts, we openly provide the accuracy for each of the 3.2 million locations we forecast for.

First let's take a look at what the dryday™ forecasts are designed to do for you.

They are primarily designed to show you where the drier periods of the month can be found, with significant accuracy, over the long term, to assist you in choosing dates free from rain/snow. They are not perfect and one should expect some to be incorrect, but as you use them again and again ("over the long term") you will begin to realize the advantage you are gaining in favorable odds for choosing a dry period for your event.

Remember, “Risky” days (days with a gray or black cloud symbol) are not necessarily the days it will rain, but simply weak spots in the month that may allow storms to come through your area. If it doesn't rain/snow on a Risky day, it just did not rain (or snow). However, if it does rain (or snow) on a dryday, more than 0.01" (a TRACE), the forecast failed.

Because the system is not and cannot be perfect, the great advantage is realized when you use the system repeatedly. Even the very best betting system wins by using it over and over with the wins outnumbering the losses. Without a dryday™ forecast, you have no reason to pick one day over another. You could be making weather-sensitive decisions right in the middle of a period with a high chance of rain (Risky). In that case, you have zero odds on your side. You need favorable odds on your side.

Let's face it, even with very high odds, any single forecast can fail. The dryday™ Planning Forecasts system tries to give you an advantage when you carefully choose a date(s) with the strongest odds for your outdoor event (most yellow bars and farthest from black bars).

Short Term Forecasts

Most available short term forecasts (up to 10 days) start failing as soon as the forecast is made and continue to get worse the further out they go. This is because they are not sure how the forces that cause our weather are going to change from hour to hour and day to day. The weather you will actually get in 7 days is most often not well understood by the weather forecaster until it gets much closer. Constant changes to the forecasts make event planning for even one week out a frustrating task.

Climatology

Most long term weather predictions use Climatology. Basically they use historical averages to predict the weather. If the average over the last forty years was 85ºF and sunny for the first week of June, the prediction is 85ºF and sunny for the next first week of June. With the countless unexpected weather events over the last few years many have lost confidence in planning their costly event around an average.

dryday™ Forecast System

Due to our unique methodology, developed over 50 years, we are able to forecast weather up to 18 months out. A dryday™ forecast has the same potential accuracy as the forecast for tomorrow. Our weather forecast system uses very exact calculations of a number of forces that have been proven, by extensive testing, to be acting upon our weather at an exact date in the future, at an exact location on the earth. Because these weather forecast values are actually going to happen in the future they will not change and can be relied upon at an exact time in the future.

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