May thru Dec and Year columns for 2021 are based on the 1991-2020 normals) HGX RSS Feed 3) Set the DATE and TYPE of data you want. ". However, a relatively complete set of daily temperature and rainfall data is available dating back to 1892 with some temperature and rainfall records dating back to 1889. It rarely rains hard; instead, it has a (seemingly) never-ending drizzle that keeps the city wet almost all-year round. It rains enough that a company (based in Seattle, of course) developed a product called a RainGlobe, which is like a snow globe, except it rains inside. For question or additional information regarding this data, please contact Jimmy Fowlervia e-mail or telephone (281.337.5074). -Palacios Average monthly snow and rainfall in Houston (Texas) in millimeter This is the mean monthly precipitation over the year, including rain, snow, hail etc. Berger, Eric; Latson, Jennifer; Leahy, Jennifer (December 10, 2008). 2016. Please note that not all products are available for all dates and time periods. Galveston was significantly warmer compared to the previous iteration of normal, especially at night. So, Seattle's reputation is totally deserved because of the number of days in which it rains. One of these was a. -Severe Stats August saw the biggest increase with average rainfall increasing by about an inch. Authorities prohibited non-emergency access to the island for many weeks. Interstate 10 near downtown, which is below grade, was covered by over 10ft (3.0m) of water. -Graphs *Station was down for maintenance. It has more days with rain than both New York City and Miami. -FAQ, Rivers/Lakes/Bayous -Evacuation ZipZone NWS -National Weather Service Global Summary of the Year, Version 1.0. Rainfall is the most common form of precipitation in Houston and is plentiful throughout the year. -Tropical Rainfall The month with the least rainfall is February, when the rain falls for 13.1 days and typically collects 1.77" (45mm) of precipitation. Seven major hurricanes have hit the Galveston and Houston areas in the past 100 years. -Galveston Beach Patrol (Flag Warning System), FORECASTS Analysis of the Parameter Regression of Independent Slopes . -Space Weather Prediction Center, CURRENT WEATHER National Oceanic and Atmospheric Administration Increased clouds during El-Nio winters are what keep the temperatures from warming up. -Local Data/Records Notice that most of the cities with more rainfall are located east of the Mississippi River, as shown in the map below made by climatologist Brian Brettschneider. -National Are "Low Dose" Health Effects of Chemicals Real? Between 1970 and 2018, Houston's mean annual rainfall jumped from 49 inches to near 57 at Hobby Airport. National temperature and precipitation maps are available from February 2001 to December 2022. Wind: 7 mph. Flash flood warnings are common all year, and due to the flat landscape, heavy rains often threaten life and property in the city. [45] The ice storm that occurred on January 16, 2018 started as cold rain for several hours, before changing to a wintry mix and then eventually sleet and snow. Mean monthly maxima and minima (i.e. Post-El Nio weather during the spring usually result in increased rainfall, as demonstrated during the Memorial Day 2015 and Tax Day/Memorial Day/early June 2016 flood events, where the Houston Metro area (and the rest of the state) experienced a climate similar to the South Asian summer monsoon (in this case, a stalled low-pressure systemusually from an upper-level low from the northeast Pacific Ocean, migrates east, where the northern polar jet stream form the usual omega blocksoriginates over the Four Corners region or the Sierra Madre Occidental/Sierra Madre Oriental mountain ranges in northern Mexico). During El Nio events, Houston winters are cooler and wetter than normal due to a stronger southern jet stream, which can increase the length of the normal wet season in Houston. It's a good idea to bring along your umbrella so that you don't get caught in poor weather. Houston sometimes experiences tropical cyclones during the Atlantic hurricane season, which can bring heavy rain and significant damage to the city. This is due to the fact that Houston has been the home for the oil and gas industry since its inception in the early 1900s, when there was little environmental regulation. Joe', A Conversation Between ACSH and Great.com. 10. -Houston Intercontinental Official records for Houston were kept at the Weather Bureau in downtown from July 1888 to May 1969, and at Intercontinental since June 1969. Please Contact Us. -Austin/San Antonio NPR Frets About 'Weight Stigma' As Doctors Fight Childhood Obesity, Ignore the News: Earth Is Getting Cleaner and Healthier, Another Lousy Anti-Vaping Study, Debunked, Insanity: Doctor Gives Teenage Son Cigarettes to Break Vaping Habit, Underwater Suicide? Houston, Texas, is considered to have a tropical climate, and its average annual rainfall reflects that. [11] Heat stroke can strike people who stay outdoors for long periods of time during the summer, making hydration essential for outdoor work and recreational activity. -Houston Intercontinental Pollution rankings from the EPA and ALA are administered in terms of peak-based standards, focusing strictly on the worst days of the year; on average, ozone levels in Houston are lower than those seen in many other cities of the country, due to dominant winds off the Gulf that ensure clean, marine air.[53]. CURRENT HAZARDS Station Data. (PWSs) in the Houston area had received 84-hour rainfall totals . The strongest recorded tornado in Houston history was an F4 on November 21, 1992, part of a large outbreak of tornadoes in Harris County.[31]. Which Drugs Really Help with Motion Sickness? -Weather History -Web Weather for Kids -Major Events, RADAR -Weather Ready Nation -SKYWARN Schedule ANNUAL SUMMARY. ADDRESS SEARCH. All rain totals are measured in inches. Masks Depart, 'Stomach Flu' Arrives. Given Seattle's rainy reputation, it must be one of the wettest cities in America, right? Number of rainy days is based on at least 0.01 inches of precipitation. -Forecast Discussion -River Forecast Centers The normal annual precipitation measures 49.77 inches (1,264 mm). Because Houston is on the Gulf of Mexico, the city has a high chance of being hit by hurricanes or tropical storms every hurricane season (June through November). The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more. Believe it or not, there are cities with even more rainy (or snowy) days: Buffalo, Portland, Cleveland, and Pittsburgh. -National Houston Extremes, Normals and Annual Summaries NORMALS (based on the 30 year period 1991-2020). Houston/Galveston, TX1353 FM 646 Suite 202Dickinson, TX 77539281-337-5074Comments? -SKYWARN Schedule [1] The city (and much of South and Southeast Texas) has its own irregular monsoon season, which usually lasts from May to October, but sometimes April to September. Houston, USA: Annual Weather Averages. The coldest month is January with an average maximum temperature of 18C (64F). -Tropical Storm Imelda In 2011, Houston was ranked as the 17th most polluted city in the US, according to the American Lung Association. -Houston Hobby The chance of damage from tropical storms and hurricanes also goes up during La Nia events, due to decreased Atlantic wind shear. Wind: 5 mph. -Worldwide -Galveston See more current weather Annual Weather Averages Near Houston -Local Page. -Local Flooding most frequently occurs in October and November, which is the end of the Southeast Texas wet season. When it does occur, it usually melts immediately on the ground with light accumulation on roofs and raised surfaces. -College Station Could be Heat Stroke. [18] The all-time record low at Houston's Hobby Airport, closer to the city, is 9F (13C). Sea breeze showers which are monsoon-like (especially during the summer months, originating from the mesoscale convective cycle, where the polar jet stream usually forms an omega block) are common throughout the Texas Gulf Coast area (from Brownsville to the Florida Peninsula), which has a similar climate to areas like Mumbai and Kolkata locals refer to the sea breeze showers as the Gulf Coast Monsoon (also called the Gulf of Mexico or the Texas Monsoon), despite Houston being 50 feet above sea level. 4.11. Questions? (The dry season is the summer, which lasts from roughly July to early October.). -Astronomical Info Although the downtown office was the official observation site for almost eighty years, the office moved quite a few times around downtown Houston. -Storm Prediction Center Tylenol After Surgery? -Marine Spring thunderstorms are common, often with spectacular lightning shows. -Careers It's more than 4 feet of rain. Seattle gets about 37.4-38 inches of precipitation a year. [24] The periphery of Hurricane Carla hit the city in 1961, causing major damage to Houston. -Historical Tracks This table gives the total precipitation that fell on Houston during each year from 2010. Annual Weather Averages Near Austin. Should You Worry About Artificial Flavors Or Colors? 2) In the first window, click Daily Summary Observations. In Houston, during the entire year, the rain falls for 180.5 days and collects up to 35.35" (898mm) of precipitation. It's Not Even in the Top 30 of Major U.S. Cities, The Next Plague and How Science Will Stop It. -National Hurricane Center These are not "official" records, nor should they be . -Publications/Brochures Although only a Category 2 storm (out of 5), Ike brought moderate rain but high winds for an unusually long duration (upwards of nine hours). National Weather Service Clear. On the night of May 18, 2021, a large and intense severe storm impacted Houston. View over 750 USGS real-time stream, lake, reservoir, precipitation, and groundwater stations in context with current weather and hazard conditions on both desktop and mobile devices.