Kttc Rain Totals (2024)

FAQs

What month has the most rain in Texas? ›

Rain in the coastal region is more abundant than in the inland region, and subtropical forests line the Rio Grande. The wettest months of the year are April and May in western areas, but approaching the Gulf Coast, September becomes the year's wettest month on average.

We enjoy over 250 days of sunshine in the Alamo City and the average annual precipitation for San Antonio is just 32.91 inches.

Let's look at an example of what the probability does mean. If a forecast for a given county says that there is a 40% chance of rain this afternoon, then there is a 40% chance of rain at any point in the county from noon to 6 p.m. local time.

1/100 (0.01) of an inch of rain – The first measurable amount of rainfall reported by The National Weather Service. This would not leave puddles on the ground and would slightly wet the surface. This might occur during a light shower for 2-5 minutes or even a drizzle for 2 hours.

All this talk about the wettest months on record may make you wonder about the wettest month of any month, well that record goes back to April 1922 when 17.64 inches of rain was recorded in North Texas.

The driest month in San Antonio is January with 1.66 inches of precipitation, and with 4.72 inches May is the wettest month.

Does 100% chance of precipitation mean it will rain all day? A common misconception about PoP forecasts is that a 100% chance of rain means it will rain heavily all day long. This is not always true because PoP doesn't portray anything about the intensity or the duration of the precipitation.

Isolated thunderstorms

These storms are sometimes called air-mass or local thunderstorms. They are mostly vertical in structure, are relatively short-lived, and usually do not produce violent weather at the ground.

So for 0%, there are chances that it will rain but it's very unlikely. Chances of rain and thunderstorms are rounded to the nearest tens. For example, if there are exactly 53% chances of rain, it would just said 50%. So for 0%, there are chances that it will rain but it's very unlikely.

Moderate rainfall measures 0.10 to 0.30 inches of rain per hour. Heavy rainfall is more than 0.30 inches of rain per hour. Rainfall amount is described as the depth of water reaching the ground, typically in inches or millimeters (25 mm equals one inch). An inch of rain is exactly that, water that is one inch deep.

How deep does 1 inch of rain go? ›

Table 1 shows that one inch of water that does not run off will wet the soil 12 inches deep; but it will take more water to wet a loam, 1.5 to 2.0 inches and even more, 2.5 inches to wet a clay; and again this is assuming that no water runs off.

December or January is normally the driest month on the High and Low Rolling Plains, as well as on the Edwards Plateau. The dry season peaks somewhat later farther east in north central and south central Texas, while on the coastal plains March is the driest month.

April rain versus other months

According to the National Centers for Environmental Information, April is actually the fifth wettest month in the U.S. June is the wettest month of the year on average and May 2015 was the wettest month in the history of the United States.

April showers tend to bring more showers in May, which is the wettest month of the year on average in North Texas, NWS meteorologist Daniel Huckaby previously said. May's average is 4.83 inches of rain, according to weather service data.

May is typically the most active month for severe weather in Texas.