NATIONAL WEATHER SUMMARY
JULY 2019
1-6: A rare heat wave struck northern New England, where Bangor, ME, tallied a trio of highs of 91°F from July 46. Very hot weather also engulfed the Southeast. On July 2-3, consecutive daily-record highs (99 and 101°F, respectively) occurred in Alma,
GA. Other triple-digit, daily-record highs on July 3 included 102°F in Florence, SC, and Fayetteville, NC. With a high of 101°F on the 3rd, Savannah, GA, notched its highest July reading since July 26, 2010, when it was 102°F. In Florida,
Pensacola closed the week with three consecutive daily-record highs (97, 101, and 102°F) from July 4-6. Elsewhere in the Gulf Coast region, record-setting highs for July 6 soared to 100°F in Mobile, AL, and 99°F in New Orleans, LA. In contrast, Lake
Yellowstone, WY, reported a July 6 low of 34°F.

7-13: The nation’s hottest weather, relative to normal, affected the central and southern Appalachians and environs, including much of the Southeast, where weekly temperatures averaged as much as 5°F above normal. Pockets of cooler-than-normal
weather were mostly limited to the central and southern Plains.
Early-week heat lingered along the Gulf Coast, where Pensacola, FL, reported four consecutive daily-record highs (97, 101, 102, and 100°F) from July 4-7. Later, extreme heat shifted into parts of the south-central and southwestern U.S. In Texas,
Midland collected a daily-record high (106°F) for July 9. Record-setting highs for July 10 included 109°F in Tucson, AZ, and 104°F in Del Rio, TX. July 11 featured daily-record highs in locations such as Safford, AZ (110°F), and Brownsville, TX (
100°F). Elsewhere in Texas, Corpus Christi closed the week with three consecutive daily record highs (101, 101, and 103°F) from July 11-13. Brownsville posted another daily-record high, 102°F, on July 13. In contrast, cool weather prevailed during
the first half of the week across much of the West. Big Piney, WY, collected a daily-record low of 33°F on July 9. On the same date in Colorado, daily-record lows dipped to 37°F in Alamosa and 52°F in Grand Junction.

14-20: Weekly temperatures averaged at least 5°F above normal across large sections of the Plains, Midwest, East, and Southwest, while cooler-than-normal conditions were mostly limited to the northernmost Rockies and environs. Mid- to late-week
temperatures soared to 90°F or higher east of the Rockies, except in parts of the Appalachians and across the nation’s northern tier. Readings topped 100°F throughout the central and southern High Plains. Extreme heat also gripped the Desert
Southwest, where temperatures rose to 110°F or higher. Early-week heat in the Desert Southwest resulted in a daily-record high of 118°F (on July 15) in Thermal, CA. The following day in Arizona, Tucson (110°F) posted a record-setting high for July 16.

Heat also began to intensify across the East, where triple-digit, daily-record highs included 101°F (on July 17) in Florence, SC, and 100°F (on July 16) in Georgetown, DE. On the southern High Plains, Dalhart, TX, closed the week with a trio of daily-
record highs (105, 108, and 107°F) from July 18-20. Similarly, Roswell, NM, noted three consecutive daily-record highs of 108°F from July 19-21. In Colorado, daily-record highs for July 19 were set in locations such as Pueblo (105°F) and Burlington (
104°F). Late in the week, heat expanded across the remainder of the central and eastern U.S. In the Midwest, record-setting highs for July 19 rose to 97°F in La Crosse, WI, and 95°F in Alpena, MI. Northeastern daily-record highs for July 20 soared
to 99°F in Atlantic City, NJ, and at New York’s JFK Airport. In Rockford, IL, the minimum temperature on July 19 fell only to 80°F, tying an all-time record originally set on August 6, 1918.

21-27: Scattered to widespread showers and thunderstorms preceded and accompanied a surge of cooler air across the eastern one-third of the country. Some of the heaviest rain, locally 2 to 4 inches or more, fell in parts of Florida. Several other areas,
including the southern Mid-Atlantic region and southern New England, also received significant rain. Although extreme heat lingered early in the week along the Atlantic Seaboard, near- or below-normal weekly temperatures prevailed in most areas from
the Plains eastward. In fact, weekly temperatures averaged more than 5°F below normal in a broad area centered over the southeastern Plains and northern Mississippi Delta. Late in the week, showers developed across parts of the northern Plains and
upper Midwest. Meanwhile, a suddenly active monsoon circulation contributed to an increase in shower activity from California to the Four Corners States. Despite the showers, Western weekly temperatures averaged at least 5°F above normal in many
locations from California into the Southwest. In contrast, little or no rain fell from the Pacific Northwest to the northern High Plains. On July 21, the final day of an Eastern heat wave, temperatures soared to 100°F—setting or tying daily records—
in Atlantic City, NJ, and at New York’s LaGuardia Airport. Extreme heat also lingered across the south-central U.S., where record-setting highs for July 21 soared to 108°F in Roswell, NM, and 106°F in Del Rio, TX. In contrast, Great Falls, MT,
reported a daily-record low of 38°F on July 21. It was also the lowest July reading in Great Falls since July 16, 1999, when the temperature fell to 36°F. During the mid- to late-week period, cool air settled across the eastern half of the country.
Crossville, TN, notched four consecutive daily-record lows (56, 52, 54, and 56°F) from July 2326. In the Midwest, record-setting lows for July 23 included 54°F in Springfield, IL, and 57°F in Kansas City, MO. On July 24, daily-record lows fell to 57Â
°F in Joplin, MO; Knoxville, TN; and San Angelo, TX. In fact, San Angelo collected a trio of daily record lows (57, 59, and 60°F) from July 24-26. Farther north, a new surge of cool air resulted in daily-record lows of 40°F on July 25 in Montana
locations such as Dunkirk and Stanford. In Oregon, Meacham registered a daily-record low of 32°F on July 25. Elsewhere, heat (and monsoon-related moisture) overspread coastal southern California. In Long Beach, CA, three consecutive daily-record
highs (96, 99, and 97°F) occurred from July 23-25.

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