A warmer than usual May is predicted for the Tri-Cities by the National Weather Service.
Temperatures for the month just ended were slightly above normal in the Tri-Cities, after a streak from December through March with temperatures averaging from 1 to 5 degrees above normal.
“It was beneficial to have a month within a normal temperature range,” said AGWeatherNet meteorologist Nic Loyd. “It would have been nice to have a cool, wet month that brought consistent snow to the mountains, but at least April was far from another record warm month like February and March (for some places in the Mid-Columbia.)”
Normal highs in May heat up from 70 degrees at the start of the month to 78 at the end of the month. Normal lows increase from 45 to 53.
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Precipitation is expected to be near the May normal of 0.64 inch this month.
No daily high or low temperature records were set in April at Hanford, where the Hanford Meteorological Service keeps records back to World War II.
Temperatures in the Tri-Cities averaged 54.6, which was 0.3 degree above normal. Highs averaged 67.2, which was 0.9 degree above normal. But that was offset by low temperatures that averaged 42, or 0.3 degree below normal.
The warmest day was April 29, when the high as recorded in Kennewick hit 85, the second day of the month with a high in the 80s. The lowest temperature recorded was 35 on April 5.
At the Hanford Meteorology Station, the average temperature was 54.6 degrees, which was 1.1 degrees about normal. Highs were in the 80s on four days, with a high April 28 of 86.
April was dry, with just 0.15 inch of rain in Kennewick, which is 0.41 inch below normal. Precipitation for the year through April in the Tri-Cities has reached 2.18, which is 0.97 inch below normal.
At Hanford, precipitation was just 0.09 inch last month, compared to a normal of 0.55 inch. Precipitation for the year through April has measured 1.83 inches, which is 66 percent of normal for Hanford.
“Effective water utilization will be critical this summer,” said Gerrit Hoogenboom, AgWeatherNet director.
The peak wind gust, as measured in Kennewick, was 34 mph on April 11.
At Hanford, it was 45 mph on April 10. Aprils usually are windier at Hanford. The average wind speed in April was 5.3 mph, which was 3.2 mph below normal.