Below average temperatures in Riverton, March 9th - 11th 2009

If the temperatures in Riverton have seemed unusually cold for this late in the winter season during the last few days, it's because temperatures have indeed been much colder than the seasonal average.  March 9th through the 11th was especially cold for Riverton.

High Temperatures were 17 degrees, 15 degrees, and 17 degrees, respectively, from the 9th through the 11th.

Low temperatures were -9 degrees, -10 degrees, and -1 degree, respectively, during this same three day period.

The average temperature from March 9th through March 11th was 11.7 degrees, making this period the fourth coldest such period in Downtown Riverton in the 102 years since 1907.

Below is a table of the coldest March 9th through 11th periods in Downtown Riverton since 1907 in terms of average temperature.

Avg. Temp (°F) Year


7.5 1969
9.5 1948
11.7 2009
12.7 1908
15.3 1998
16.8 1912

The average temperatures from March 9th through the 10th was 6.5 degrees, making this period the second coldest such period in Downtown Riverton since 1907.  The coldest such period occurred in 1932 when the average temperature was only 2.5 degrees.


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