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Public Information Statement

Statement as of 8:21 AM CDT on July 01, 2013


... June in Rochester Minnesota was slightly dryer than normal and
had slightly below normal temperatures...

The average June temperature at Rochester was 67.3 degrees... which
was three tenths of a degree below normal. The average high was 77.2
degrees and the average low was 57.4 degrees. The highest
temperature for the month was 93 degrees... which occurred on the
9th. The coldest temperature for the month was 43 degrees... which
occurred on the 1st.

The total precipitation for June was 4.46 inches... which was -0.22
inches below normal. The greatest 24-hour precipitation amount was
1.39 inches... which occurred from the 11th to the 12th.

... Records...

At 220 PM on June 9th... the temperature at the rocheter Airport
reached 93 degrees. This ties the record high for the date... set in
1973.

... Discussion...

In the month of June... Rochester was slightly below normal for
temperature. The coldest period occurred from the 26th through the
30th... where the average daily temperature was 1 to 5 degrees below
normal. The warmest stretch occurred from the 3rd through
10th... where the daily average temperature ranged from 1 to 10
degrees above normal. There was 1 day the temperature climbed at or
above 90 degrees. Typically... there are 3 days the temperature rises
at or above 90 degrees.

Rochester was slightly dryer than normal during the month of June.
The wettest period occurred from the 10th through the 13th... where
1.71 inches of precipitation fell. There were 12 days of measurable
precipitation during the month. Of those 12 days... there was 1 day
where one inch or more of precipitation fell. There were 17 days
during the month where zero precipitation was observed.

Looking at this past month... there were two significant days with
severe weather. On June 22nd... a system of strong thunderstorms
moved through in the early morning from the west. The areas where
the storms were most prevalent were across northeast Iowa and into
southern Wisconsin. The storms caused straight line wind damage and
there were 3 confirmed tornadoes. In addition... there was flooding
that occurred when 2 to 5 inches of rain fell in a short period of
time. The Rochester Airport received 0.71 inches of rain.

The next event was on June 29th. A system of storms moved through in
the early afternoon into the evening. As thunderstorms moved
south... the biggest impact was the hail produced. There were gusty
winds associated with a few of the storms... reaching 40 to 45 mph.
In addition... heavy rain led to localized rural flooding. Hail
reports ranged from 0.25 inches to 1.75 inches in diameter. The
highest rainfall amounts were a little over 2 inches in southern
Wisconsin. The Rochester Airport received 0.24 inches of rain.

... Looking ahead to July...

The average temperature for the month is 67.6 degrees. The average
high temperature is 76.9 degrees and the average low temperature is
58.2 degrees. Rochester normally receives 3 days of 90 degrees at or
above. The highest temperature in the month was 108 degrees which
occurred on the 14th in 1936.

The average precipitation in July is 4.55 inches with typically 11
days of measurable precipitation. There are normally 7 days with
thunderstorms during July in Rochester. The greatest one day
precipitation was 7.47 inches which occurred on the 11th in 1981.


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