Thunderstorms formed in west-central Iowa in the late afternoon of the 17th and sped east over the next several hours. Spotty thundershowers popped up just over the border in Nebraska with a few cells lingering in western Iowa before dissipating near sunset on the 16th. Scattered showers spun through eastern Iowa during the evening and continued into the 13th with amounts generally under 0.10 inches where rain was observed. General totals farther north and east were in the 0.10 to 0.30-inch range. Scattered showers and thunderstorms spread over the state later in the evening, bringing rainfall to many Iowa stations into the 11th amounts were greatest in southwestern Iowa, where Oakland (Pottawattamie County) picked up 1.41 inches. Clouds increased through Saturday (10th) as a low-pressure center spun across Missouri. Airports in Sioux City (Woodbury County) and Spencer (Clay County) measured 0.80 inches and 0.94 inches, respectively, with Spirit Lake (Dickinson County) observing 0.83 inches. A complex of thundershowers moved southeast along the Iowa-Nebraska border early on the 9th, bringing much-needed rainfall to western stations. Totals tailed off farther south and east with many locations observing several tenths of an inch. Rainfall totals for the previous two days were beneficial for northwest Iowa where Estherville Municipal Airport (Emmet County) registered 2.50 inches while other nearby stations reported amounts nearing 1.00 to 1.50 inches. Moderate rain showers streamed north to south in western Iowa through the afternoon of the 8th as skies cleared into the evening hours. Hit-or-miss thundershowers popped in western Iowa later in the day with Hastings (Mills County) and Sibley (Osceola County) observing 0.52 and 0.53-inch totals, respectively. Rain totals reported at 7:00 am on the 5th showed widespread 0.10-0.20 inches with isolated pockets of heavier totals Clare (Webster County) observed 0.53 inches while West Bend (Palo Alto County) measured 0.71 inches. As the sun set and the heating of the day was lost, the remaining thunderstorms dissipated. ![]() The large-scale steering flow pushed these storms from east to west with cells becoming severe-warned in southeastern Iowa. Easterly flow pushed scattered thundershowers across northern Iowa during the afternoon hours of the 3rd Rock Valley (Sioux County) reported 1.24 inches while Swea City (Kossuth County) picked up 1.45 inches.ĭaytime temperatures on the 4th were in the low to mid 80s, helping scattered thunderstorms form across Iowa. Rain totals over the previous 48 hours were above 0.30 inches at most stations receiving rainfall with Atlantic (Cass County) and Little Sioux (Harrison County) reporting 2.09 and 2.30 inches, respectively. Most of the thunderstorm activity fizzled out around sunset with rain showers remaining in western Iowa. In the presence of ample low-level moisture and instability, afternoon thunderstorms again fired over much of Iowa. ![]() Pockets of showers and thunderstorms formed from southwest to central Iowa into the morning of the 1st with afternoon heat producing scattered pop-up storms across the state several hours later. There were also several small pockets of above-normal amounts across various sections of the state. Most of Iowa’s National Weather Service co-op stations reported below-average totals during June, especially in western and northeastern Iowa where pockets of three to four-inch deficits were observed. Cooling degree day totals are running 4% less than last year at this time and 20% more than normal. Home cooling requirements, as estimated by cooling degree day totals, averaged 4% less than last June and 14% more than normal. Elkader (Clayton County) reported the month’s low temperature of 35 degrees on the 12th, 20 degrees below normal. ![]() Washington (Washington County) reported the month’s high temperature of 95 degrees on the 24th, 12 degrees above normal. June’s statewide average maximum temperature was 83.8 degrees, 3.2 degrees above normal while the average minimum temperature was 58.9 degrees, 0.3 degree below normal. A warmer June occurred in 2022, while a drier June occurred in 2006, which was the 10th driest.Īverage temperatures varied in June with near-normal conditions over portions of southern and eastern Iowa and temperatures up to three degrees above-normal in the northwest. June 2023 ties 1913, 19 as the 40th warmest and ranks as the 16th driest June in 151 years of statewide records. Temperatures averaged 71.3 degrees or 1.4 degrees above normal while precipitation totaled 2.80 inches or 2.46 inches below normal.
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