Weather Terms You See But Might Not Understand (Spring Edition)

By Steve Monday | Rowan County Weather

Spring in Rowan County brings a lot more than blooming flowers and warmer afternoons. It also brings more detailed weather forecasts—and sometimes, a few terms that might leave you scratching your head. Here’s a breakdown of common spring weather terms you see in local forecasts, and what they really mean for your day.

Dew Point

The dew point is the temperature at which air becomes fully saturated and can no longer hold moisture. When the dew point is high, the air feels more humid.

• Dew point below 55°F: Comfortable

• Dew point 60–65°F: Sticky

• Dew point 70°F and up: Muggy and oppressive

Why it matters in spring: As the air warms and moisture increases, higher dew points fuel thunderstorms and increase discomfort—even if temperatures aren’t extreme.

Wind Gusts

A wind gust is a sudden, brief increase in wind speed, usually measured over a few seconds. You’ll often see forecasts mention gusts “up to 25 mph.”

Why it matters in spring: Gusts can make a calm day feel breezy fast. They stir up pollen, elevate wildfire risks, and even make outdoor events a bit trickier.

Mid- and High-Level Clouds

These refer to clouds forming in different layers of the atmosphere. You might see terms like “mid-level cloud cover” or “cirrus streaming in.”

• Mid-level clouds (6,500–20,000 feet): Often signal a weather change

• High-level clouds (above 20,000 feet): Usually thin, wispy clouds ahead of a system

Why it matters in spring: These clouds can block sunshine and signal approaching rain—but don’t always mean immediate precipitation.

“Southwest Flow” or “Southerly Winds”

You’ll often hear, “a southwest flow will continue,” or “southerly winds will bring in warmer air.”

Translation: Winds are coming from the south or southwest, usually ushering in warmer and more humid air ahead of a front.

Soil Temperatures

This is how warm the ground is a few inches below the surface. It’s especially important for farmers and gardeners.

• 50–60°F: Cool-season crops (lettuce, spinach)

• 65°F and up: Warm-season crops (corn, tomatoes, peppers)

Why it matters in spring: Air temperature may feel warm, but planting success depends on soil temp. Recent dry weather can also delay soil warming or dry out topsoil.

Pollen Count

Pollen levels are measured based on the number of grains per cubic meter of air, broken into tree, grass, and weed categories.

• High tree pollen: March–early May

• High grass pollen: Late April–June

Why it matters in spring: Pollen isn’t just about allergies—it can affect air quality, reduce visibility during mowing, and even influence decisions about opening windows or scheduling outdoor events.

Precipitation Chances (30%, 50%, etc.)

This percentage isn’t just about the chance of rain. It represents the probability of rain occurring at any point in the forecast area.

• 30% chance: There’s a 3 in 10 chance it will rain somewhere in Rowan County

• 70% chance: Most of the area is likely to see rain

Why it matters: A low chance doesn’t mean no rain—it might just be spotty and brief.

Final Thoughts

Spring weather is full of transitions, and understanding these terms can help you plan smarter, plant better, and stay safer. At Rowan County Weather, we’re here to translate what the forecast really means—so you’re never caught off guard by the wind, the clouds, or the pollen count.