monthly climate summary

Following a few brief glimpses in March, spring finally arrived in earnest during April. The month was wet for most and warm for all, and came complete with all the spring severe weather hazards Oklahomans are accustomed to. The state’s first official tornado of 2019 struck on the 17th near Shattuck. The twister, rated an EF1 by the National Weather Service (NWS), damaged homes, sheds, trees and fences. Baseball size hail fell near Selman in Harper County that same day, and near Gould in Harmon County on April 3.

Spring failed to gain a toehold during March, a month that both began and finished with a healthy dose of winter. A powerful cold front plowed through the Southern Plains over the first few days of the month and brought a bit of snow, a bit of ice, and a generous portion of frigid weather. Wind chills fell below zero over much of the state, and as low as minus 12 degrees in the Panhandle. Snow totals were generally light – less than an inch in most areas – although Forgan and Claremore reported 4 and 5 inches, respectively.

Drought, fire danger, floods, severe storms, multiple bouts with freezing rain, and even a good old fashioned Plains snowstorm – Oklahoma’s weather had a little bit of everything during February. Frequent incursions of arctic air kept Oklahomans guessing what to wear from day to day, although choices from the spring wardrobe were rare. A round of severe storms marched across the state Feb. 6-7 ahead of an arctic front. Hail, damaging winds and flash flooding were reported with the storms, followed by a batch of freezing rain behind the front.

The weather was a bit confused in Oklahoma during January. The first half of the month was on the warm and wet side of normal, while the second half was dominated by short, intense periods of dry winter’s chill. The state received an average of 1.86 inches of precipitation from January 1-12, but only 0.31 inches throughout the rest of the month – the 5th wettest and 25th driest such periods on record, respectively. The month’s biggest thrill came in the form of a winter storm on January 3, with freezing rain, sleet and snow falling across much of the state.

Three soaking storm systems brought much needed precipitation to the state, ending a run of up to 78 days without significant moisture for much of northern and western Oklahoma. Like last year at this time, the winter wheat crop was clamoring for a good drink of water, and fire danger was increasing with each dry, windy day. Between the three storms, virtually all areas of the state saw relief by the end of the month. The most significant storm struck just after Christmas Day and dumped 1-3 inches of rain across a good portion of the state.

Much of Oklahoma’s weather was downright boring during November – cold and dry with a few warm days in between. Despite that monotony, Mother Nature still managed to sneak in a couple of stretches of exciting weather. The first bout struck on the 12th with Oklahoma’s first significant winter storm of the season. Snow fell across the northwestern half of the state and dropped as much as 5 inches of snow. While most of it melted as it fell, enough accumulated across the far northwest to prompt a winter storm warning from the National Weather Service (NWS).

Oklahomans experienced the gamut of their state’s annual weather hazards during October. Flooding rains, extreme heat, an arctic blast, the season’s first snow, severe thunderstorms, and a slew of tornadoes – all were present during an active weather month. A weak tornado formed near Fairfax on Oct. 7, damaging roofs and power poles. Tornadoes struck again just after daybreak on Oct. 9, forming along the leading edge of a squall line moving across central Oklahoma.

Many of Oklahoma’s most extreme rainfall events have occurred during the fall, the result of a rare conjunction of meteorological ingredients converging over the Southern Plains. Those ingredients – the remnants of a pacific tropical system, a stalled front, and abundant moisture from the Gulf of Mexico – came together late in the month to produce massive rainfall totals across south central Oklahoma. The Oklahoma Mesonet site at Fittstown recorded 14.2 inches of rain on Sept.

Autumnal temperatures, heavy rain, and drought reduction captured the Oklahoma weather headlines during August, although the blazing voice of summer was still heard on occasion. Drought shrank considerably in both coverage and intensity during the month thanks to some well-placed heavy rains. Wind, hail and flash flooding accompanied a somewhat unusual uptick in severe weather. Flash flooding necessitated water rescues in several cities, and a Main Street bridge was washed away in Norman. The severe weather culminated with two confirmed tornadoes in Mayes and Rogers counties on Aug.

Mother Nature threw Oklahoma a Hail Mary during the final week of July, offering drought-quenching rains and a glorious preview of fall. That brief seasonal transformation followed a dose of brutal summer weather that saw highs soar above 110 degrees and the heat index hit 120. The middle two weeks were especially fierce, culminating with record-breaking heat from the 19th through the 22nd. Temperatures reached 113 degrees at the Grandfield and Tipton Mesonet sites on both the 19th and 20th.