Here is the source code to my program that displays total snowfall amounts.
By Month snowfall.sh
By Season snowfallbyseason.sh
Example output of snowfall.sh
Data for Owosso, MI gathered from NOAA.gov http://www1.ncdc.noaa.gov/pub/data/snowmonitoring/fema/01-2017-dlysnfl.txt January of 2017 Snow Fall at MI OWOSSO WWTP SHIAWASSEE 1 0.000 2 0.000 3 0.000 4 0.000 5 0.100 6 0.000 7 0.000 8 0.100 9 0.100 10 3.500 11 0.000 12 0.000 13 0.200 14 0.000 15 0.000 16 0.000 17 0.000 18 0.000 19 0.000 20 0.000 21 0.000 22 0.000 23 0.000 24 0.000 25 0.000 26 0.100 27 0.000 28 0.000 29 0.100 30 0.200 31 2.500 Total Snow For The Month of January is 6.9