Cooler during normally hot June
June is normally the driest and third-hottest month of the year in the Grand Valley, but so far this month residents have enjoyed a wetter, cooler break.
The average daytime high temperature in Grand Junction for the first 10 days of this month was 79 degrees, 8 degrees cooler than the same time last year and 4 degrees cooler than the historical average, according to the National Weather Service in Grand Junction.
Meanwhile, Grand Junction already has recorded nearly as much rain so far this month as it normally receives for the entire month. A total of 0.29 inches of rain was recorded at Grand Junction Regional Airport prior to Thursday’s rainfall. The average for the entire month is 0.41.
“It is usually a little drier in June than it has been, and it is usually a little warmer than what we have been experiencing,” said Aldis Strautins, a meteorologist with the Weather Service.
The wet, cool start to June comes on the heels of a warmer, wetter-than- normal May.
The average high was 78.6 degrees, about 4 degrees warmer than normal, while 1.6 inches of rain fell. The normal precipitation for the month is 0.98 inches.
A total of 1.3 inches of rain fell at the airport in the 19 days between May 23 and June 10. That was the seventh-highest precipitation total in that period since the Weather
Service began keeping records in 1893, according to meteorologist Matthew Aleksa.
“In the next week or so we still see this wet pattern continuing,” Strautins said. “We got into a pattern where we have a trough to the west of us, and we continue with this westerly flow. …With this amount of moisture around here, it just helps with the thunderstorm development.”
The rest of June could follow a similar trend. Forecasts for the month call for below-normal precipitation and below-normal temperatures, Aleksa said.
He said it’s too early to predict temperatures and precipitation for the remainder of the summer.
Much of southeastern Colorado was under a tornado watch Thursday evening.
The National Weather Service said that a severe thunderstorm capable of producing a tornado was moving eastward across the area.
Earlier in the day, tornado warnings were issued east and south of Denver.