Average Temperatures in Decatur, Il, Usa

• The average annual temperature in Decatur, Il, Usa is quite mild at 11.6 degrees Celsius (52.9 degrees Fahrenheit).
• The variation of average monthly temperatures is 28.4 °C (51.1°F) which is a moderate range.
• The average daily temperature range/ variation is 12.2 °C (21.9 °F).
• July is the warmest month (fairly hot) having a mean temperature of 24.6 degrees Celsius (76.28 degrees Fahrenheit).
• The coldest month (January) is slightly cold with a mean temperature of -3.8 degrees Celsius (25.16 degrees Fahrenheit).

Average Temperatures Table for Decatur, Il

		Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec		Annual
	Average Max Temperature °C ( °F)	1.2 (34.2)	4 (39.2)	11.1 (52)	18.6 (65.5)	24.5 (76.1)	29.3 (84.7)	31.1 (88)	29.8 (85.6)	26.7 (80.1)	19.9 (67.8)	11.5 (52.7)	3.8 (38.8)		17.6 (63.7)
	Average Temperature °C ( °F)	-3.8 (25.2)	-1.2 (29.8)	5.3 (41.5)	12.1 (53.8)	17.7 (63.9)	22.6 (72.7)	24.6 (76.3)	23.3 (73.9)	19.8 (67.6)	13.2 (55.8)	6.2 (43.2)	-0.9 (30.4)		11.6 (52.9)
	Average Min Temperature °C ( °F)	-8.9 (16)	-6.5 (20.3)	-0.4 (31.3)	5.6 (42.1)	10.8 (51.4)	15.7 (60.3)	18 (64.4)	16.7 (62.1)	12.8 (55)	6.6 (43.9)	0.9 (33.6)	-5.6 (21.9)		5.5 (41.9)

Decatur, Il Average Temperatures Chart

The average temperature charts use a fixed scale so that you can easily compare temperatures between two or more locations. Simply line up the charts in separate tabs in your browser and toggle between tabs to visualise the differences. The charts have major grid lines at intervals of 10 °C on the left axis corresponding with intervals of 18 °F on the right axis. Minor gridlines mark intervals of 2.5 °C and 4.5 °F. The charts show the relationship between the Celsius and Fahrenheit measuring scales. Locations in the northern hemisphere run from January to December and in the southern hemisphere from July to June so that the middle of the chart always corresponds with the high sun period (for the hemisphere).

Average Temperatures Nearby Decatur, Il

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