Rainfall/ Precipitation in Ottawa, Il, Usa

• Ottawa, Il receives 912.7 mm (35.9 in) of rainfall per year, or 76.1 mm (3 in) per month.
• The driest weather is in February when an average of 31 mm (1.2 in) of rainfall (precipitation) occurs.
• The wettest weather is in June when an average of 104.6 mm (4.1 in) of rainfall (precipitation) occurs.

Precipitation Table

	Climate Variable	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec		Annual
	Average Precipitation mm (in)	36.6 (1.44)	31 (1.2)	72.9 (2.9)	95 (3.7)	96 (3.8)	104.6 (4.1)	96.5 (3.8)	94.2 (3.7)	98 (3.9)	59.9 (2.4)	69.6 (2.7)	58.4 (2.3)		912.7 (35.9)
	Precipitation Litres/m² (Gallons/ft²)	36.6 (0.9)	31 (0.76)	72.9 (1.79)	95 (2.33)	96 (2.35)	104.6 (2.57)	96.5 (2.37)	94.2 (2.31)	98 (2.4)	59.9 (1.47)	69.6 (1.71)	58.4 (1.43)		912.7 (22.39)