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First frost dates are based on historical averages, but of course, weather is unpredictable. It's estimated that a frost may occur earlier than the given date 30% of the time.
The period between the final Spring frost and the first Fall frost is considered "growing season" by the almanac. Check out the National Weather Service forecast for the Tri-City area here .
February marks the midpoint of winter, and with spring just over the horizon, many gardeners are dreaming of sunny days and dirty fingernails. A week before the last frost date, begin to “harden ...
Freezing [1] or frost occurs when the air temperature falls below the freezing point of water (0 °C, 32 °F, 273 K). This is usually measured at the height of 1.2 metres above the ground surface. This is usually measured at the height of 1.2 metres above the ground surface.
Allentown's warmest month (on average) is July with a daily average temperature of 74.7 °F (23.7 °C) and the coldest month (on average) being January with a daily average of 29.4 °F (−1.4 °C). The average precipitation of Allentown is 45.35 inches (1,152 mm) per year.
The frost line—also known as frost depth or freezing depth—is most commonly the depth to which the groundwater in soil is expected to freeze. The frost depth depends on the climatic conditions of an area, the heat transfer properties of the soil and adjacent materials, and on nearby heat sources.
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Tropical cyclones normally threaten the states during the summer and fall, with their main impact being rainfall. [3] Although Hurricane Agnes was barely a hurricane at landfall in Florida, its major impact was over the Mid-Atlantic region, where Agnes combined with a non-tropical low to produce widespread rains of 6 inches (150 mm) to 12 inches (300 mm) with local amounts up to 19 inches (480 ...