The scoring of forecasts is very simple. You will find two scores in the results tables, a temperature score and a precipitation score.

The temperature score is simply the sum of the absolute difference between the forecast high/low temperature, and the actual high/low temperature:

|Forecast High - Actual High| = High Score

|Forecast Low - Actual Low| = Low Score

Temperature Score = High Score + Low Score

So, for example, if you forecast 20 for a low and 40 for a high, and the actual low and high temperatures were 25 and 45 respectively, you would have a temperature score of 5 + 5 = 10.

Precipitation scores are a little less straightforward. You will submit a probability of precipitation (POP) forecast in percent (%) for two periods. If no precipitation occurred during a period, your score for that period is simply your POP forecast. If measurable precipitation occurred (trace doesn't count!), then your score is 100 - (your POP forecast).

No Precipitation: Period 1 or 2 Score = POP Forecast

Precipitation Occurs: Period 1 or 2 Score = 100 - POP Forecast

Precipitation Score = Period 1 Score + Period 2 Score

So, for example, if you forecast 20% for period one and 60% for period two, and period one had no precipitation and period two had measurable precipitation, your precipitation score would be 20 + 40 = 60.