NATIONAL WEATHER SUMMARY
AGUST 2019
1-10: Much of the Midwest experienced near- or below-normal temperatures for the second week in a row. However, hotter-than-normal weather covered many other areas of the country, including the Northeast, the southern High Plains, and much of the West.
Weekly temperatures averaged at least 5°F above normal in many locations from southern California to the southern High Plains.
Multiple surges of cool air into the Midwest and Southeast resulted in several daily-record lows. In the latter region, New Bern, NC, noted consecutive daily-record lows of 63°F on July 29-30. Elsewhere in the Southeast, daily-record lows included 66Â
°F (on July 29) in Florence, SC, and 68°F (on July 30) in Jacksonville, FL. Meanwhile in Minnesota, Hibbing posted consecutive daily-record lows (37 and 39°F, respectively) on July 30-31. Rhinelander, WI, also registered a daily-record low on July 31,
dipping to 40°F. In contrast, a Northeastern heat wave led to record-setting highs for July 30 in Baltimore, MD (98°F), and Houlton, ME (92°F). Farther west, building heat on the southern High Plains resulted in consecutive daily record highs (102
and 103°F, respectively) in Dalhart, TX, on July 31 – August 1. Heat also gripped the Desert Southwest, where Thermal, CA, collected a daily-record high of 117°F on August 2.

11-17: Near to below-normal temperatures blanketed the northern half of the country, while late-summer heat baked the South. Weekly temperatures ranged from at least 5°F below normal across portions of the northern Plains to more than 5°F above normal
in several Southern regions, especially from the Desert Southwest to the southern Plains. Mostly dry weather accompanied the blazing heat across the South, except in the eastern Gulf Coast region and along the southern Atlantic Coast. Rainfall stretched
from the northern and central Plains into the Midwest. Some of the highest totals, locally 2 to 4 inches, fell from the central Plains into the central Corn Belt.
In New Mexico, Roswell registered daily record highs of 105°F on August 12 and 17. In Texas, consecutive daily-record highs were established on August 12-13 in Del Rio (107 and 108°F) and Harlingen (104 and 105°F). Daily-record highs were also set
on August 12 in Texas locations such as Laredo (109°F) and Midland (107°F). Elsewhere in Texas, Galveston broke an all-time record with lows of 86°F on August 8, 12, and 18; prior to this year, that city had not experienced a minimum temperature
above 85°F in the 145-year period of record. Farther west, mid-week heat briefly affected areas along and near the northern and central California coast. On August 14-15, consecutive daily-record highs occurred in California locations such as Redwood
City (100°F both days) and the San Francisco Airport (94°F both days). Extreme heat gripped the Desert Southwest, where Palm Springs, CA, posted a pair of daily-record highs (117 and 119°F, respectively) on August 14-15. Other record setting highs
for August 15 included 120°F in Thermal, CA, and 95°F in Eureka, NV. Back in Texas, Del Rio logged another daily record high on August 16, with a high of 107°F. Corpus Christi, TX, posted highs of 101 and 100°F, respectively, on August 15-16,
achieving records both days. Dalhart, TX, closed the week with consecutive daily-record highs (102 and 104°F, respectively) on August 16-17. Meanwhile in the Southeast, persistently hot weather led to a pair of daily-record highs (98 and 97°F,
respectively) on August 11 and 14 in Jacksonville, FL. Montgomery, AL, reached or exceeded the 100-degree mark on 6 days in a row from August 13-18, with the temperature peaking at 102°F (and tying a daily-record high) on the 17th.

18-24: Much of the country experienced near- or above normal temperatures, with weekly readings averaging at least 5°F above normal in many locations from Arizona to Texas. Temperatures also averaged as much as 5°F above normal from the southern
Appalachians to the northern Mid-Atlantic Coast, despite widespread showers.

25-31: Hot weather, with temperatures averaging 5 to 10°F above normal— prevailed from the Pacific Coast to the southern High Plains. Hot, humid weather dominated Florida’s peninsula during Hurricane Dorian’s approach, but generally cooler-
thannormal conditions covered the remainder of the eastern U.S. In addition, near- or below-normal temperatures blanketed the Midwest for the sixth week in a row, maintaining a slow pace of development for late-planted corn and soybeans. The coolest
weather, relative to normal, affected the upper Midwest, where temperatures averaged at least 5°F in many locations. A handful of daily-record lows were set across northern sections of the Plains and Rockies in late August. In western Montana, for
example, a daily-record low of 37°F was reported at the Dillon Airport on August 26. Later, Rapid City, SD, achieved a daily-record low (41°F) for August 28. Farther south, however, the week began in the midst of a scorching heat wave. Monthly records
were set on consecutive days (August 25-26) in locations such as Roswell, NM (109 and 111°F, respectively), and Midland, TX (108 and 113°F). Previous August records had been 107°F in both Roswell and Midland. In fact, the only higher temperatures ever
observed in Midland occurred in 1994, with highs of 116 and 114°F, respectively, on June 27-28. Elsewhere in Texas, monthly records were set or tied on August 26 with highs of 109°F in Del Rio and Lubbock. From August 2-31, McAllen, TX, noted highs
above 100°F on 30 consecutive days. McAllen also reported daily-record highs of 105°F on August 25 and 28. By August 27, heat spread into the Northwest, where dailyrecord highs in Oregon soared to 103°F in Roseburg and 101°F in Eugene. By week’s
end, heat re-intensified across the Intermountain West. From August 31 – September 2, Grand Junction, CO, noted three consecutive daily-record highs (98, 100, and 98°F.

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