Average daily temperatures in Boston, Massachusetts, including the lower and upper bounds of the 95% confidence interval. Due to the possibility of missing data, the actual day counts used in the average and confidence interval calculations are provided. The table is also offered in degrees of Celsius.
January | February | March | April | May | June | July | August | September | October | November | December | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 26 32 37 | 28 31 34 | 31 34 38 | 41 44 48 | 52 55 59 | 62 66 71 | 70 72 75 | 71 74 78 | 68 71 74 | 57 60 63 | 49 52 56 | 38 43 48 |
2 | 27 32 36 | 30 33 36 | 32 35 39 | 40 43 46 | 52 56 60 | 64 67 70 | 70 72 75 | 72 75 78 | 65 68 70 | 56 59 62 | 46 49 53 | 36 40 44 |
3 | 27 32 37 | 27 31 35 | 30 34 38 | 42 45 47 | 51 55 60 | 61 64 66 | 71 73 76 | 73 76 78 | 66 68 70 | 57 60 62 | 45 49 53 | 34 39 44 |
4 | 28 33 38 | 27 31 35 | 30 34 38 | 42 45 48 | 52 56 60 | 59 61 63 | 72 74 77 | 72 74 76 | 67 69 71 | 56 59 63 | 44 47 50 | 35 39 44 |
5 | 29 33 37 | 25 30 34 | 33 35 38 | 39 43 47 | 53 55 58 | 59 62 65 | 73 76 79 | 71 73 76 | 66 69 71 | 55 59 63 | 44 46 48 | 35 39 44 |
6 | 28 33 38 | 25 29 34 | 33 37 40 | 40 43 46 | 51 54 57 | 59 62 65 | 72 75 78 | 70 73 75 | 65 68 70 | 54 58 61 | 44 47 49 | 32 37 43 |
7 | 30 34 38 | 26 30 34 | 32 36 41 | 41 45 49 | 53 56 59 | 59 63 67 | 70 73 76 | 70 72 74 | 67 69 72 | 53 56 59 | 45 47 50 | 33 38 43 |
8 | 28 32 36 | 27 30 33 | 32 37 42 | 41 45 49 | 53 56 59 | 61 65 70 | 70 73 75 | 72 74 76 | 67 70 72 | 54 57 60 | 44 48 51 | 31 35 39 |
9 | 28 32 37 | 27 30 33 | 30 35 41 | 42 46 49 | 52 55 58 | 63 66 70 | 69 72 75 | 71 74 76 | 66 68 71 | 54 58 61 | 43 47 51 | 30 33 36 |
10 | 26 32 37 | 30 33 37 | 31 35 40 | 43 46 50 | 52 56 59 | 63 66 69 | 71 72 74 | 72 75 77 | 64 66 69 | 55 58 62 | 43 48 52 | 33 37 41 |
11 | 26 31 35 | 28 32 36 | 32 36 40 | 43 45 48 | 53 56 59 | 62 65 69 | 70 72 75 | 71 73 75 | 62 65 67 | 55 57 59 | 43 47 50 | 34 37 40 |
12 | 29 33 37 | 26 30 34 | 35 38 41 | 43 46 48 | 53 56 60 | 61 65 69 | 70 72 74 | 69 71 74 | 63 65 68 | 53 56 58 | 42 45 49 | 34 37 40 |
13 | 31 35 38 | 25 29 33 | 34 38 42 | 44 47 51 | 51 53 56 | 60 63 67 | 70 73 75 | 69 72 75 | 65 67 69 | 53 56 59 | 41 45 48 | 31 35 39 |
14 | 25 32 38 | 27 30 34 | 35 39 42 | 47 49 52 | 51 53 56 | 61 64 67 | 71 74 77 | 70 73 76 | 64 66 69 | 53 56 59 | 41 46 50 | 31 35 40 |
15 | 22 28 34 | 27 31 36 | 37 39 42 | 45 49 52 | 54 57 60 | 61 65 68 | 72 74 77 | 69 71 74 | 64 67 70 | 51 55 59 | 43 47 52 | 31 35 40 |
16 | 22 28 34 | 26 31 36 | 35 38 41 | 45 49 53 | 54 57 59 | 62 65 69 | 72 75 77 | 70 73 76 | 61 64 66 | 52 54 56 | 42 46 51 | 33 37 40 |
17 | 24 29 34 | 29 32 36 | 35 38 41 | 45 50 55 | 53 56 58 | 64 67 71 | 73 76 80 | 72 75 78 | 60 62 64 | 51 54 56 | 41 44 48 | 33 37 41 |
18 | 23 28 34 | 29 33 37 | 34 39 44 | 46 49 53 | 53 56 59 | 64 67 70 | 74 77 80 | 71 73 76 | 61 63 65 | 51 53 56 | 39 41 44 | 30 35 40 |
19 | 24 29 35 | 29 33 37 | 35 39 42 | 47 50 53 | 54 56 59 | 65 69 72 | 71 74 77 | 69 71 74 | 60 63 66 | 49 53 56 | 39 42 45 | 31 34 37 |
20 | 27 31 35 | 32 34 37 | 35 39 42 | 49 53 57 | 56 59 62 | 67 70 73 | 70 73 76 | 67 70 73 | 61 64 67 | 51 54 57 | 40 44 48 | 30 34 38 |
21 | 22 27 31 | 32 36 39 | 35 40 45 | 48 51 54 | 57 60 64 | 67 70 73 | 71 73 76 | 68 70 73 | 62 64 67 | 52 54 57 | 40 43 46 | 28 32 37 |
22 | 21 26 31 | 30 35 39 | 36 41 45 | 49 52 55 | 54 58 61 | 66 70 73 | 72 75 77 | 69 72 75 | 63 66 68 | 48 52 55 | 39 42 45 | 30 34 38 |
23 | 23 28 33 | 31 34 38 | 36 40 45 | 48 51 55 | 55 58 61 | 66 69 71 | 71 74 76 | 69 71 73 | 62 65 68 | 46 50 53 | 37 41 45 | 30 35 39 |
24 | 23 29 35 | 30 34 37 | 37 40 43 | 49 53 57 | 57 61 64 | 67 70 73 | 70 73 75 | 68 71 73 | 60 63 67 | 48 52 55 | 37 41 45 | 33 37 41 |
25 | 24 30 35 | 30 33 36 | 38 41 43 | 49 52 54 | 56 61 65 | 69 72 75 | 69 72 75 | 67 70 73 | 60 63 66 | 50 53 57 | 36 41 45 | 30 34 38 |
26 | 23 28 32 | 30 34 38 | 40 43 46 | 47 51 55 | 56 61 66 | 72 74 77 | 69 72 75 | 69 71 73 | 60 63 67 | 50 53 55 | 40 43 46 | 29 33 36 |
27 | 23 27 32 | 31 36 40 | 39 43 46 | 48 50 52 | 57 60 63 | 71 74 77 | 71 74 77 | 69 71 73 | 60 63 66 | 49 52 55 | 40 43 47 | 31 34 37 |
28 | 24 28 33 | 31 35 39 | 40 43 47 | 48 51 55 | 59 61 64 | 69 72 75 | 71 74 77 | 68 70 73 | 61 64 66 | 47 51 55 | 38 42 47 | 29 34 38 |
29 | 25 29 33 | 22 34 47 | 41 45 48 | 49 52 56 | 59 63 66 | 69 72 74 | 72 74 77 | 67 70 72 | 58 61 64 | 44 47 50 | 39 42 46 | 31 35 38 |
30 | 26 30 34 | 42 46 49 | 50 53 56 | 61 65 68 | 71 73 75 | 71 74 77 | 67 70 72 | 57 60 62 | 45 48 50 | 38 42 46 | 31 35 38 | |
31 | 26 30 34 | 41 45 49 | 62 66 69 | 69 72 75 | 68 71 74 | 48 51 54 | 29 32 35 |