The weather roundup for April from the National Oceanic and Atmospheric Administration.
National Oceanic and Atmospheric Administration
WALLA WALLA — Apparently Mr. Winter didn’t get the memo to get off the stage.
OK, so maybe a freezing night or two in April isn’t that uncommon, but it still feels wrong when the flower buds are finally busting out.
But despite a mid-month cold snap, April started to give everyone a real taste of spring, complete with the first 80-degree day since last October.
And if predictions hold true, this coming month promises to be even warmer.
But getting back to April. Despite a few cold days, temperatures overall were slightly above normal. According to the National Weather Service, the average high was about 62 degrees, which was about 0.4 above normal. The average low was 42.6 degrees, which was 0.7 degrees above normal.
As noted above, the warmest day was 80 degrees on April 26 while the coldest nights were on April 16-17, when the mercury dropped to 31 degrees and 29 degrees respectively. Those were also the only two days with freezing cold during the month.
April also turned out a bit drier than average. Total precipitation was 1.78 inches, an amount .14 inches below normal. The heaviest rainfall came down on April 19 with .60 inches measured at Walla Walla Regional Airport. Overall there were 12 days with measurable precipitation, defined as at least .01 inch, while there were 18 days with zero or trace precipitation.
Total rain and snowfall for the year is now at 4.81 inches, which is 3.70 inches below normal. Precipitation for the water year, which began in October and runs through September 2014, is now 12.21 inches, which is 3.32 inches below normal.
The highest wind gust during the month was 52 mph which occurred on April 4. That was the only day when winds exceeded 50 mph.
As for May, the warm, sunny weather of this past weekend may well be the rule for the rest of the month, according to the federal Climate Prediction Center.
The long-range outlook for May calls for above normal temperatures and below normal precipitation. Normal highs for Walla Walla rise from 66 degrees at the start of May to 74 degrees at the end. Normal lows rise from 45 degrees to 52 degrees. Normal precipitation, based on a 30-year average, is 2.13 inches.