While global weather statistics are calling July 2019 the hottest on record, the numbers from the Jamestown area are below average, according to Daryl Ritchison, director of the North Dakota Agricultural Weather Network.
The United Nation's World Meteorological Organization released a report Thursday saying July 2019 had exceeded or tied July 2016 as the hottest month on record globally. The report pointed out several European cities that set all-time record high temperatures during heat waves during the month.
Central North Dakota didn't set any records. The warmest temperature in July in Jamestown was 90 degrees on July 2.
The NDAWN reporting station 10 miles west of Jamestown calculated an average temperature during July of 69 degrees or 1 degree cooler than the normal temperature for the month of 70 degrees.
Average temperatures are calculated by adding the high and low each day and dividing by 2. Those daily averages are then used to calculate an average temperature for the month.
The NDAWN station west of Jamestown reported 5.03 inches of rain or 1.74 inches above normal. Average wind speed for the month was exactly normal at 6.4 mph.
According to the National Weather Service reporting station at Jamestown Regional Airport, the city was a bit drier with 4.54 inches of rain which was still 1.19 inches above normal for July. The year-to-date precipitation is at 9.93 inches as of July 31 at Jamestown and lags the average of 12.06 by 2.16 inches. The National Weather Service uses data from 1981 to 2010 to calculate the normal conditions for the area.
Ritchison said years with conditions comparable to this year have had a tendency to have a wetter than normal October which could cause problems for the harvest of late-season crops.
In the meantime, he's forecasting slightly warmer than normal temperatures for August and September and slightly wetter than normal temperatures in most regions of North Dakota.