CLIMATE According to the U.S. Weather Bureau, the average monthly temperature in Concord is: January: 21 degrees F, -6 degrees C February: 23 degrees F, -5 degrees C March: 32 degrees F, 0 degrees C April: 44 degrees F, 7 degrees C May: 56 degrees F, 13 degrees C June: 65 degrees F, 18 degrees C July: 70 degrees F, 21 degrees C August: 67 degrees F, 19 degrees C September: 60 degrees F, 16 degrees C October: 49 degrees F, 9 degrees C November: 38 degrees F, 3 degrees C December: 25 degrees F, -4 degrees C Average monthly precipitation is 3.2".                                                                                                http://www.visitnh.gov/welcome-to-nh/climate.aspx