 Fewer Arizona drivers hit the road, reducing demand for fuel and keeping gas prices under the national average. Arizona gas prices went down by about 3 cents, now about $3.49 a gallon. The national average also dropped by about 4 cents to $3.50. AAA's Julian Paredes saying the decline in pump prices is likely to continue due to the excessive heat across our state and this region. You're listening to Arizona News Radio.