Flagstaff, Arizona, Average Temperature, April Degrees Fahrenheit 192404 40.0 192504 42.7 192604 42.8 192704 42.3 192804 41.4 192904 39.7 193004 46.3 193104 44.9 193204 41.9 193304 37.8 193404 45.9 193504 42.1 193604 45.3 193704 42.1 193804 42.7 193904 45.0 194004 42.7 194104 36.3 194204 42.6 194304 45.8 194404 -99.0 194504 -99.0 194604 -99.0 194704 -99.0 194804 -99.0 194904 -99.0 195004 45.9 195104 41.9 195204 42.8 195304 41.6 195404 46.0 195504 39.7 195604 40.3 195704 39.9 195804 40.6 195904 45.4 196004 43.4 196104 43.8 196204 47.2 196304 39.2 196404 39.0 196504 38.5 196604 44.0 196704 36.9 196804 39.6 196904 41.0 197004 36.7 197104 41.3 197204 44.1 197304 38.5 197404 41.8 197504 34.8 197604 40.0 197704 43.3 197804 40.8 197904 41.9 198004 42.5 198104 46.1 198204 42.5 198304 36.0 198404 39.7 198504 45.2 198604 43.2 198704 44.9 198804 43.0 198904 49.4 199004 45.1 199104 41.8 199204 47.7 199304 45.1 199404 43.0 199504 40.4 199604 44.9 199704 40.7 199804 36.9 199904 37.3 200004 46.3 200104 43.2 200204 47.2 200304 40.3 200404 42.4 200504 42.5 200604 44.1 200704 44.3 200804 43.8 200904 42.3 201004 41.2 201104 43.6 201204 45.5 201304 44.4 201404 43.3 201504 43.4 201604 43.8 201704 45.0 201804 47.9 201904 45.8