Oak All, Ash, Choke, Choke, Choke, Ash before Oak, Spray, Roast, Roast. This proverb is a more reliable predictor than the other proverbs on this list. "Ash before oak" means a sprout. Spray means wet weather. If ash is growing in front of an oak, expect a drier summer. If not, expect a wetter summer. The germination time of trees depends on the moisture content of the soil. In dry autumn and winter, the topsoil is slightly damp, but there is still moisture. Wet autumn and winter mean a moist soil surface, and since the roots are shallow, ash forms from the ash, which germinates quickly. In the last dry season, the deep root system of the oak touched the soil in front of the ash and deeper parts of the shoots. How does this relate to long-term weather forecasts? It is based on a simple earth theory that attempts to maintain balance and average rainfall. The dry season usually follows the rainy season.