------------------------------------------------------------------------------------------------- 1971-2000 Daily/Monthly Station Normals Provided by National Climatic Data Center/NESDIS/NOAA ------------------------------------------------------------------------------------------------- Station COOP ID: 447201 Station Name, State, Division, Call: RICHMOND BYRD INTL AP VA 02 RIC Latitude, Longitude, Elevation, Elements: 37 30 40 -077 19 24 164 XNP ------------------------------------------------------------------------------------------------- Minimum Temperature (deg F [tenths deg F for monthly]) DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTH ------------------------------------------------------------------------------------------------- JAN 28 28 28 28 28 28 28 28 28 28 28 28 28 28 27 27 27 27 27 27 27 27 27 27 27 27 28 28 28 28 28 276 FEB 28 28 28 28 28 28 28 28 29 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 33 297 MAR 33 33 33 34 34 34 35 35 35 35 36 36 36 36 37 37 37 38 38 38 38 39 39 39 39 40 40 40 41 41 41 370 APR 41 42 42 42 42 43 43 43 43 44 44 44 44 45 45 45 46 46 46 47 47 47 47 48 48 48 49 49 49 50 453 MAY 50 50 51 51 51 52 52 52 52 53 53 53 54 54 54 55 55 55 56 56 56 56 57 57 57 58 58 58 59 59 59 546 JUN 59 60 60 60 61 61 61 61 62 62 62 63 63 63 63 64 64 64 64 65 65 65 65 65 66 66 66 66 66 67 633 JUL 67 67 67 67 67 67 68 68 68 68 68 68 68 68 68 69 69 69 69 69 69 69 69 69 69 69 69 69 69 69 68 683 AUG 69 68 68 68 68 68 68 68 68 68 68 67 67 67 67 67 67 67 67 66 66 66 66 66 66 65 65 65 65 65 65 668 SEP 64 64 64 64 63 63 63 63 62 62 62 62 61 61 60 60 60 59 59 59 58 58 57 57 56 56 56 55 55 54 599 OCT 54 53 52 52 52 51 51 50 50 49 49 48 48 48 47 47 46 46 46 45 45 45 44 44 44 44 43 43 43 42 42 472 NOV 42 42 41 41 41 41 41 40 40 40 40 39 39 39 39 38 38 38 38 37 37 37 36 36 36 36 35 35 35 35 384 DEC 34 34 34 34 33 33 33 33 32 32 32 32 31 31 31 31 31 31 30 30 30 30 30 29 29 29 29 29 29 29 29 311 ------------------------------------------------------------------------------------------------- Maximum Temperature (deg F [tenths deg F for monthly]) DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTH ------------------------------------------------------------------------------------------------- JAN 46 46 46 46 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 46 46 46 46 46 453 FEB 46 46 47 47 47 47 47 48 48 48 48 49 49 49 49 49 50 50 50 51 51 51 51 52 52 52 53 53 493 MAR 53 54 54 54 54 55 55 56 56 56 57 57 57 58 58 58 59 59 59 60 60 60 61 61 62 62 62 63 63 63 64 584 APR 64 65 65 65 66 66 66 67 67 67 68 68 68 69 69 69 70 70 70 70 71 71 71 71 72 72 72 72 73 73 689 MAY 73 73 73 73 74 74 74 74 74 75 75 75 75 76 76 76 76 77 77 77 77 78 78 78 78 79 79 79 79 80 80 762 JUN 80 81 81 81 81 82 82 82 82 83 83 83 83 83 84 84 84 84 84 85 85 85 85 85 86 86 86 86 86 86 836 JUL 86 87 87 87 87 87 87 87 87 87 87 87 88 88 88 88 88 88 88 88 88 88 88 88 88 88 88 88 88 87 87 875 AUG 87 87 87 87 87 87 87 87 87 87 86 86 86 86 86 86 86 86 85 85 85 85 85 85 85 84 84 84 84 84 84 857 SEP 83 83 83 83 83 82 82 82 82 81 81 81 81 80 80 80 80 79 79 79 78 78 78 77 77 77 76 76 75 75 797 OCT 75 74 74 73 73 73 72 72 72 71 71 71 70 70 69 69 69 68 68 68 67 67 67 67 66 66 66 65 65 65 65 693 NOV 64 64 64 63 63 63 62 62 62 62 61 61 61 60 60 60 59 59 59 58 58 58 57 57 57 56 56 55 55 55 597 DEC 54 54 54 53 53 52 52 52 52 51 51 51 50 50 50 49 49 49 49 48 48 48 48 47 47 47 47 47 47 46 46 497 ------------------------------------------------------------------------------------------------- Average Temperature (deg F [tenths deg F for monthly]) DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTH ------------------------------------------------------------------------------------------------- JAN 37 37 37 37 37 37 37 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 37 37 37 37 37 364 FEB 37 37 37 37 38 38 38 38 38 38 39 39 39 39 39 40 40 40 40 41 41 41 41 42 42 42 42 43 395 MAR 43 43 44 44 44 45 45 45 46 46 46 46 47 47 47 48 48 48 49 49 49 50 50 50 51 51 51 51 52 52 52 477 APR 53 53 53 54 54 54 55 55 55 56 56 56 56 57 57 57 58 58 58 58 59 59 59 60 60 60 60 61 61 61 571 MAY 61 62 62 62 62 63 63 63 63 64 64 64 65 65 65 65 66 66 66 66 67 67 67 68 68 68 68 69 69 69 70 654 JUN 70 70 70 71 71 71 72 72 72 72 73 73 73 73 74 74 74 74 74 75 75 75 75 75 76 76 76 76 76 77 735 JUL 77 77 77 77 77 77 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 79 79 78 78 78 78 78 78 78 78 779 AUG 78 78 78 78 78 78 77 77 77 77 77 77 77 77 77 76 76 76 76 76 76 76 75 75 75 75 75 75 74 74 74 763 SEP 74 74 73 73 73 73 73 72 72 72 71 71 71 71 70 70 70 69 69 69 68 68 67 67 67 66 66 65 65 65 698 OCT 64 64 63 63 62 62 62 61 61 60 60 60 59 59 58 58 58 57 57 57 56 56 56 55 55 55 54 54 54 54 53 583 NOV 53 53 53 52 52 52 51 51 51 51 50 50 50 49 49 49 49 48 48 48 47 47 47 47 46 46 46 45 45 45 490 DEC 44 44 44 43 43 43 43 42 42 42 41 41 41 41 40 40 40 40 40 39 39 39 39 38 38 38 38 38 38 37 37 404 ------------------------------------------------------------------------------------------------- Heating Degree Days DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTH ------------------------------------------------------------------------------------------------- JAN 27 27 28 28 28 28 28 28 28 28 28 28 28 28 29 29 29 29 29 29 29 28 28 28 28 28 28 28 28 28 28 873 FEB 28 28 27 27 27 27 27 27 26 26 26 26 26 26 25 25 25 25 24 24 24 24 23 23 23 22 22 22 705 MAR 22 21 21 21 20 20 20 19 19 19 19 18 18 17 17 17 17 16 16 16 15 15 15 15 14 14 14 14 13 13 13 528 APR 12 12 12 11 11 11 11 10 10 10 9 9 9 9 8 8 8 8 8 7 7 7 7 6 6 6 6 6 5 5 254 MAY 5 5 5 4 4 4 4 4 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 80 JUN 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 JUL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AUG 0 0 0 0 0 0 0-99 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 SEP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 2 2 2 2 2 3 3 3 27 OCT 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 11 11 11 225 NOV 12 12 12 12 13 13 13 13 14 14 14 15 15 15 15 16 16 16 17 17 17 18 18 18 18 19 19 19 20 20 470 DEC 20 21 21 21 21 22 22 22 23 23 23 23 24 24 24 24 25 25 25 25 25 26 26 26 26 26 27 27 27 27 27 748 ------------------------------------------------------------------------------------------------- Cooling Degree Days DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTH ------------------------------------------------------------------------------------------------- JAN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 FEB 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-99 1 MAR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 8 APR 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 33 MAY 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 6 6 6 107 JUN 6 6 7 7 7 7 8 8 8 8 8 9 9 9 9 9 10 10 10 10 10 11 11 11 11 11 11 12 12 12 277 JUL 12 12 12 12 13 13 13 13 13 13 13 13 13 13 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 13 415 AUG 14 14 13 13 13 13 13 13 13 13 13 13 12 12 12 12 12 12 12 11 11 11 11 11 11 10 10 10 10 10 9 367 SEP 9 9 9 9 8 8 8 8 8 7 7 7 7 7 6 6 6 6 6 5 5 5 5 4 4 4 4 4 3 3 187 OCT 3 3 3 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 33 NOV 0 0 0 0 0 0 0 0 0 0 0 0 0-99-99-99-99-99-99 0 0 0 0 0 0 0 0 0 0 0 6 DEC -99 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 ------------------------------------------------------------------------------------------------- Total Precipitation (Hundreths of an Inch) DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTH ------------------------------------------------------------------------------------------------- JAN 11 11 11 11 11 11 11 12 12 12 12 12 12 12 12 12 12 12 12 12 12 11 11 11 11 11 11 11 11 11 11 355 FEB 11 11 11 10 10 10 10 10 10 10 10 10 10 10 10 10 10 11 11 11 11 11 11 11 12 12 12 12 298 MAR 12 12 13 13 13 13 13 13 13 13 14 14 14 14 14 14 14 14 14 14 14 13 13 13 13 13 13 13 12 12 12 409 APR 12 12 11 11 11 11 11 11 11 10 10 10 10 10 10 10 10 10 10 10 10 10 10 11 11 11 11 11 11 11 318 MAY 12 12 12 12 12 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 12 12 396 JUN 12 12 12 12 12 12 12 11 11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 12 12 12 13 13 13 13 354 JUL 13 14 14 14 14 14 15 15 15 15 15 15 15 15 15 16 16 16 16 16 16 16 16 16 15 15 15 15 15 15 15 467 AUG 15 15 15 14 14 14 14 14 14 14 14 14 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 418 SEP 13 13 13 13 13 13 13 14 14 14 14 14 14 14 14 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 398 OCT 13 13 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 11 11 11 11 11 11 11 11 11 11 11 11 11 11 360 NOV 11 11 11 11 11 11 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 306 DEC 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 11 11 11 312