Storm Activity: Aug 20, 1964 - Sep 11, 1964
Sep 11 · 00:00 GMT 30 mph -- Extratropical
| Sep 11 | 00:00 GMT | 56.5 | -26 | 30 mph | -- | Extratropical | -- |
| Sep 10 | 21:00 GMT | 56.54 | -26.64 | 30 mph | -- | Extratropical | -- |
| Sep 10 | 18:00 GMT | 56.5 | -27.5 | 35 mph | -- | Extratropical | -- |
| Sep 10 | 15:00 GMT | 56.33 | -28.71 | 35 mph | -- | Extratropical | -- |
| Sep 10 | 12:00 GMT | 56 | -30 | 35 mph | -- | Extratropical | -- |
| Sep 10 | 09:00 GMT | 55.46 | -31.04 | 35 mph | -- | Extratropical | -- |
| Sep 10 | 06:00 GMT | 55 | -32 | 35 mph | -- | Extratropical | -- |
| Sep 10 | 03:00 GMT | 54.96 | -33.03 | 35 mph | -- | Extratropical | -- |
| Sep 10 | 00:00 GMT | 55 | -34 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 21:00 GMT | 54.82 | -34.83 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 18:00 GMT | 54.5 | -35.5 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 15:00 GMT | 54 | -36.04 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 12:00 GMT | 53.5 | -36.5 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 09:00 GMT | 53.21 | -37 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 06:00 GMT | 53 | -37.5 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 03:00 GMT | 52.71 | -38.08 | 35 mph | -- | Extratropical | -- |
| Sep 9 | 00:00 GMT | 52.5 | -38.5 | 35 mph | -- | Extratropical | -- |
| Sep 8 | 21:00 GMT | 52.44 | -38.56 | 35 mph | -- | Extratropical | -- |
| Sep 8 | 18:00 GMT | 52.5 | -38.5 | 40 mph | -- | Extratropical | -- |
| Sep 8 | 15:00 GMT | 52.62 | -38.56 | 40 mph | -- | Extratropical | -- |
| Sep 8 | 12:00 GMT | 52.8 | -38.7 | 40 mph | -- | Extratropical | -- |
| Sep 8 | 09:00 GMT | 52.99 | -38.93 | 45 mph | -- | Extratropical | -- |
| Sep 8 | 06:00 GMT | 53.2 | -39.2 | 45 mph | -- | Extratropical | -- |
| Sep 8 | 03:00 GMT | 53.39 | -39.44 | 45 mph | -- | Extratropical | -- |
| Sep 8 | 00:00 GMT | 53.6 | -39.7 | 45 mph | -- | Extratropical | -- |
| Sep 7 | 21:00 GMT | 53.86 | -40.04 | 45 mph | -- | Extratropical | -- |
| Sep 7 | 18:00 GMT | 54.1 | -40.4 | 45 mph | -- | Extratropical | -- |
| Sep 7 | 15:00 GMT | 54.26 | -40.69 | 45 mph | -- | Extratropical | -- |
| Sep 7 | 12:00 GMT | 54.4 | -41 | 45 mph | -- | Extratropical | -- |
| Sep 7 | 09:00 GMT | 54.55 | -41.39 | 50 mph | -- | Extratropical | -- |
| Sep 7 | 06:00 GMT | 54.7 | -41.8 | 50 mph | -- | Extratropical | -- |
| Sep 7 | 03:00 GMT | 54.85 | -42.16 | 50 mph | -- | Extratropical | -- |
| Sep 7 | 00:00 GMT | 55 | -42.5 | 50 mph | -- | Extratropical | -- |
| Sep 6 | 21:00 GMT | 55.16 | -42.84 | 55 mph | -- | Extratropical | -- |
| Sep 6 | 18:00 GMT | 55.3 | -43.2 | 60 mph | -- | Extratropical | -- |
| Sep 6 | 15:00 GMT | 55.44 | -43.59 | 60 mph | -- | Extratropical | -- |
| Sep 6 | 12:00 GMT | 55.5 | -44 | 60 mph | -- | Extratropical | -- |
| Sep 6 | 09:00 GMT | 55.44 | -44.41 | 60 mph | -- | Extratropical | -- |
| Sep 6 | 06:00 GMT | 55.3 | -44.8 | 60 mph | -- | Extratropical | -- |
| Sep 6 | 03:00 GMT | 55.2 | -45.1 | 60 mph | -- | Extratropical | -- |
| Sep 6 | 00:00 GMT | 55 | -45.5 | 60 mph | -- | Extratropical | -- |
| Sep 5 | 21:00 GMT | 54.63 | -46.15 | 60 mph | -- | Extratropical | -- |
| Sep 5 | 18:00 GMT | 54.1 | -46.9 | 65 mph | -- | Extratropical | -- |
| Sep 5 | 15:00 GMT | 53.52 | -47.65 | 65 mph | -- | Extratropical | -- |
| Sep 5 | 12:00 GMT | 52.8 | -48.3 | 70 mph | -- | Extratropical | -- |
| Sep 5 | 09:00 GMT | 51.97 | -48.71 | 70 mph | -- | Extratropical | -- |
| Sep 5 | 06:00 GMT | 51 | -49 | 75 mph | -- | Extratropical | 1 |
| Sep 5 | 03:00 GMT | 49.91 | -49.28 | 80 mph | -- | Extratropical | 1 |
| Sep 5 | 00:00 GMT | 48.8 | -49.5 | 85 mph | -- | Extratropical | 1 |
| Sep 4 | 21:00 GMT | 47.85 | -49.63 | 90 mph | -- | Extratropical | 1 |
| Sep 4 | 18:00 GMT | 46.9 | -49.8 | 90 mph | -- | Extratropical | 1 |
| Sep 4 | 15:00 GMT | 45.89 | -49.97 | 95 mph | -- | Extratropical | 1 |
| Sep 4 | 12:00 GMT | 44.7 | -50.5 | 100 mph | 970 mb | Extratropical | 2 |
| Sep 4 | 09:00 GMT | 43.14 | -51.51 | 100 mph | -- | Hurricane | 2 |
| Sep 4 | 06:00 GMT | 41.5 | -53 | 100 mph | -- | Hurricane | 2 |
| Sep 4 | 03:00 GMT | 39.93 | -54.84 | 100 mph | -- | Hurricane | 2 |
| Sep 4 | 00:00 GMT | 38.7 | -56.9 | 100 mph | -- | Hurricane | 2 |
| Sep 3 | 21:00 GMT | 38.1 | -59.04 | 100 mph | -- | Hurricane | 2 |
| Sep 3 | 18:00 GMT | 37.8 | -61 | 100 mph | 975 mb | Hurricane | 2 |
| Sep 3 | 15:00 GMT | 37.42 | -62.4 | 95 mph | 977 mb | Hurricane | 1 |
| Sep 3 | 12:00 GMT | 37.1 | -63.5 | 90 mph | 980 mb | Hurricane | 1 |
| Sep 3 | 09:00 GMT | 36.78 | -64.58 | 90 mph | 980 mb | Hurricane | 1 |
| Sep 3 | 06:00 GMT | 36.5 | -65.6 | 85 mph | 980 mb | Hurricane | 1 |
| Sep 3 | 03:00 GMT | 36.23 | -66.66 | 85 mph | -- | Hurricane | 1 |
| Sep 3 | 00:00 GMT | 36 | -67.7 | 85 mph | -- | Hurricane | 1 |
| Sep 2 | 21:00 GMT | 35.83 | -68.7 | 85 mph | -- | Hurricane | 1 |
| Sep 2 | 18:00 GMT | 35.7 | -69.6 | 85 mph | -- | Hurricane | 1 |
| Sep 2 | 15:00 GMT | 35.6 | -70.34 | 85 mph | -- | Hurricane | 1 |
| Sep 2 | 12:00 GMT | 35.5 | -71 | 85 mph | 980 mb | Hurricane | 1 |
| Sep 2 | 09:00 GMT | 35.33 | -71.67 | 80 mph | 984 mb | Hurricane | 1 |
| Sep 2 | 06:00 GMT | 35.2 | -72.3 | 75 mph | 988 mb | Hurricane | 1 |
| Sep 2 | 03:00 GMT | 35.2 | -72.87 | 70 mph | 992 mb | Tropical Storm | -- |
| Sep 2 | 00:00 GMT | 35.3 | -73.4 | 65 mph | 997 mb | Tropical Storm | -- |
| Sep 1 | 21:00 GMT | 35.43 | -73.91 | 60 mph | 997 mb | Tropical Storm | -- |
| Sep 1 | 18:00 GMT | 35.6 | -74.4 | 50 mph | 998 mb | Tropical Storm | -- |
| Sep 1 | 15:00 GMT | 35.74 | -74.9 | 50 mph | 998 mb | Tropical Storm | -- |
| Sep 1 | 12:00 GMT | 35.9 | -75.4 | 45 mph | 999 mb | Tropical Storm | -- |
| Sep 1 | 09:00 GMT | 36.12 | -75.9 | 45 mph | 1,000 mb | Tropical Storm | -- |
| Sep 1 | 06:00 GMT | 36.3 | -76.4 | 40 mph | 1,001 mb | Tropical Storm | -- |
| Sep 1 | 03:00 GMT | 36.34 | -76.89 | 35 mph | 1,003 mb | Tropical Depression | -- |
| Sep 1 | 00:00 GMT | 36.3 | -77.4 | 35 mph | 1,005 mb | Tropical Depression | -- |
| Aug 31 | 21:00 GMT | 36.26 | -77.95 | 35 mph | 1,005 mb | Tropical Depression | -- |
| Aug 31 | 18:00 GMT | 36.2 | -78.5 | 35 mph | 1,006 mb | Tropical Depression | -- |
| Aug 31 | 15:00 GMT | 36.12 | -79.02 | 30 mph | 1,006 mb | Tropical Depression | -- |
| Aug 31 | 12:00 GMT | 36 | -79.5 | 30 mph | 1,007 mb | Tropical Depression | -- |
| Aug 31 | 09:00 GMT | 35.82 | -79.91 | 30 mph | 1,007 mb | Tropical Depression | -- |
| Aug 31 | 06:00 GMT | 35.6 | -80.3 | 30 mph | 1,007 mb | Tropical Depression | -- |
| Aug 31 | 03:00 GMT | 35.36 | -80.72 | 30 mph | 1,007 mb | Tropical Depression | -- |
| Aug 31 | 00:00 GMT | 35.1 | -81.1 | 30 mph | 1,007 mb | Tropical Depression | -- |
| Aug 30 | 21:00 GMT | 34.86 | -81.38 | 30 mph | -- | Tropical Depression | -- |
| Aug 30 | 18:00 GMT | 34.6 | -81.6 | 30 mph | -- | Tropical Depression | -- |
| Aug 30 | 15:00 GMT | 34.31 | -81.83 | 30 mph | -- | Tropical Depression | -- |
| Aug 30 | 12:00 GMT | 34 | -82 | 35 mph | -- | Tropical Depression | -- |
| Aug 30 | 09:00 GMT | 33.69 | -82.09 | 35 mph | -- | Tropical Storm | -- |
| Aug 30 | 06:00 GMT | 33.4 | -82.1 | 40 mph | 1,005 mb | Tropical Storm | -- |
| Aug 30 | 03:00 GMT | 33.14 | -82.03 | 45 mph | -- | Tropical Storm | -- |
| Aug 30 | 00:00 GMT | 32.9 | -81.9 | 45 mph | -- | Tropical Storm | -- |
| Aug 29 | 21:00 GMT | 32.64 | -81.75 | 45 mph | -- | Tropical Storm | -- |
| Aug 29 | 18:00 GMT | 32.4 | -81.6 | 45 mph | -- | Tropical Storm | -- |
| Aug 29 | 15:00 GMT | 32.21 | -81.49 | 50 mph | -- | Tropical Storm | -- |
| Aug 29 | 12:00 GMT | 32 | -81.4 | 50 mph | 1,000 mb | Tropical Storm | -- |
| Aug 29 | 09:00 GMT | 31.71 | -81.33 | 55 mph | 999 mb | Tropical Storm | -- |
| Aug 29 | 06:00 GMT | 31.4 | -81.3 | 60 mph | 999 mb | Tropical Storm | -- |
| Aug 29 | 04:00 GMT | 31.2 | -81.3 | 60 mph | 999 mb | Tropical Storm | -- |
| Aug 29 | 03:00 GMT | 31.1 | -81.3 | 60 mph | 999 mb | Tropical Storm | -- |
| Aug 29 | 00:00 GMT | 30.8 | -81.3 | 60 mph | 999 mb | Tropical Storm | -- |
| Aug 28 | 21:00 GMT | 30.51 | -81.3 | 60 mph | 997 mb | Tropical Storm | -- |
| Aug 28 | 18:00 GMT | 30.2 | -81.3 | 65 mph | 995 mb | Tropical Storm | -- |
| Aug 28 | 15:00 GMT | 29.87 | -81.32 | 65 mph | -- | Tropical Storm | -- |
| Aug 28 | 12:00 GMT | 29.5 | -81.3 | 65 mph | -- | Tropical Storm | -- |
| Aug 28 | 09:00 GMT | 29.05 | -81.17 | 60 mph | -- | Tropical Storm | -- |
| Aug 28 | 06:00 GMT | 28.6 | -81 | 50 mph | -- | Tropical Storm | -- |
| Aug 28 | 03:00 GMT | 28.24 | -80.84 | 50 mph | -- | Tropical Storm | -- |
| Aug 28 | 00:00 GMT | 27.9 | -80.7 | 50 mph | 983 mb | Tropical Storm | -- |
| Aug 27 | 21:00 GMT | 27.56 | -80.6 | 60 mph | 980 mb | Tropical Storm | -- |
| Aug 27 | 18:00 GMT | 27.2 | -80.5 | 65 mph | 977 mb | Tropical Storm | -- |
| Aug 27 | 15:00 GMT | 26.75 | -80.34 | 75 mph | 974 mb | Hurricane | 1 |
| Aug 27 | 12:00 GMT | 26.3 | -80.2 | 90 mph | 971 mb | Hurricane | 1 |
| Aug 27 | 09:00 GMT | 25.93 | -80.13 | 105 mph | 968 mb | Hurricane | 2 |
| Aug 27 | 08:00 GMT | 25.8 | -80.1 | 110 mph | 968 mb | Hurricane | 2 |
| Aug 27 | 06:00 GMT | 25.5 | -80 | 110 mph | 968 mb | Hurricane | 2 |
| Aug 27 | 03:00 GMT | 25.05 | -79.84 | 100 mph | 976 mb | Hurricane | 2 |
| Aug 27 | 00:00 GMT | 24.6 | -79.7 | 90 mph | 984 mb | Hurricane | 1 |
| Aug 26 | 21:00 GMT | 24.18 | -79.66 | 85 mph | 987 mb | Hurricane | 1 |
| Aug 26 | 18:00 GMT | 23.7 | -79.6 | 80 mph | 990 mb | Hurricane | 1 |
| Aug 26 | 15:00 GMT | 23.05 | -79.41 | 75 mph | -- | Tropical Storm | 1 |
| Aug 26 | 12:00 GMT | 22.4 | -79.2 | 70 mph | -- | Tropical Storm | -- |
| Aug 26 | 09:00 GMT | 21.86 | -79.12 | 75 mph | -- | Hurricane | 1 |
| Aug 26 | 07:00 GMT | 21.6 | -79 | 80 mph | -- | Hurricane | 1 |
| Aug 26 | 06:00 GMT | 21.5 | -78.9 | 80 mph | -- | Hurricane | 1 |
| Aug 26 | 03:00 GMT | 21.17 | -78.65 | 80 mph | -- | Hurricane | 1 |
| Aug 26 | 00:00 GMT | 20.8 | -78.4 | 80 mph | -- | Hurricane | 1 |
| Aug 25 | 21:00 GMT | 20.38 | -78.07 | 80 mph | -- | Hurricane | 1 |
| Aug 25 | 18:00 GMT | 20 | -77.6 | 80 mph | -- | Hurricane | 1 |
| Aug 25 | 17:00 GMT | 19.9 | -77.4 | 80 mph | -- | Hurricane | 1 |
| Aug 25 | 15:00 GMT | 19.69 | -77.06 | 85 mph | -- | Hurricane | 1 |
| Aug 25 | 12:00 GMT | 19.4 | -76.6 | 85 mph | -- | Hurricane | 1 |
| Aug 25 | 09:00 GMT | 19.18 | -76.06 | 90 mph | -- | Hurricane | 1 |
| Aug 25 | 06:00 GMT | 19 | -75.5 | 100 mph | -- | Hurricane | 2 |
| Aug 25 | 03:00 GMT | 18.82 | -74.95 | 105 mph | -- | Hurricane | 2 |
| Aug 25 | 00:00 GMT | 18.6 | -74.4 | 110 mph | -- | Hurricane | 2 |
| Aug 24 | 21:00 GMT | 18.3 | -73.9 | 140 mph | -- | Hurricane | 4 |
| Aug 24 | 20:00 GMT | 18.2 | -73.7 | 150 mph | -- | Hurricane | 4 |
| Aug 24 | 18:00 GMT | 18 | -73.2 | 150 mph | -- | Hurricane | 4 |
| Aug 24 | 15:00 GMT | 17.64 | -72.53 | 150 mph | -- | Hurricane | 4 |
| Aug 24 | 12:00 GMT | 17.3 | -71.9 | 150 mph | -- | Hurricane | 4 |
| Aug 24 | 09:00 GMT | 17.11 | -71.24 | 145 mph | -- | Hurricane | 4 |
| Aug 24 | 06:00 GMT | 17 | -70.6 | 145 mph | -- | Hurricane | 4 |
| Aug 24 | 03:00 GMT | 16.88 | -70.01 | 145 mph | -- | Hurricane | 4 |
| Aug 24 | 00:00 GMT | 16.8 | -69.4 | 145 mph | -- | Hurricane | 4 |
| Aug 23 | 21:00 GMT | 16.75 | -68.72 | 145 mph | -- | Hurricane | 4 |
| Aug 23 | 18:00 GMT | 16.7 | -68 | 145 mph | 945 mb | Hurricane | 4 |
| Aug 23 | 15:00 GMT | 16.61 | -67.32 | 145 mph | 941 mb | Hurricane | 4 |
| Aug 23 | 12:00 GMT | 16.5 | -66.6 | 150 mph | 938 mb | Hurricane | 4 |
| Aug 23 | 09:00 GMT | 16.39 | -65.82 | 145 mph | -- | Hurricane | 4 |
| Aug 23 | 06:00 GMT | 16.3 | -65 | 145 mph | -- | Hurricane | 4 |
| Aug 23 | 03:00 GMT | 16.25 | -64.22 | 140 mph | -- | Hurricane | 4 |
| Aug 23 | 00:00 GMT | 16.2 | -63.4 | 140 mph | -- | Hurricane | 4 |
| Aug 22 | 21:00 GMT | 16.16 | -62.51 | 130 mph | -- | Hurricane | 4 |
| Aug 22 | 18:00 GMT | 16 | -61.6 | 125 mph | 962 mb | Hurricane | 3 |
| Aug 22 | 17:00 GMT | 15.9 | -61.3 | 125 mph | 962 mb | Hurricane | 3 |
| Aug 22 | 15:00 GMT | 15.78 | -60.68 | 120 mph | 965 mb | Hurricane | 3 |
| Aug 22 | 12:00 GMT | 15.7 | -59.7 | 115 mph | 970 mb | Hurricane | 3 |
| Aug 22 | 09:00 GMT | 15.51 | -58.71 | 105 mph | -- | Hurricane | 2 |
| Aug 22 | 06:00 GMT | 15.3 | -57.7 | 100 mph | -- | Hurricane | 2 |
| Aug 22 | 03:00 GMT | 15.1 | -56.72 | 90 mph | -- | Hurricane | 1 |
| Aug 22 | 00:00 GMT | 14.9 | -55.7 | 85 mph | -- | Hurricane | 1 |
| Aug 21 | 21:00 GMT | 14.7 | -54.61 | 80 mph | -- | Hurricane | 1 |
| Aug 21 | 18:00 GMT | 14.5 | -53.5 | 75 mph | 993 mb | Hurricane | 1 |
| Aug 21 | 15:00 GMT | 14.3 | -52.46 | 70 mph | 996 mb | Tropical Storm | -- |
| Aug 21 | 12:00 GMT | 14.1 | -51.4 | 65 mph | 1,000 mb | Tropical Storm | -- |
| Aug 21 | 09:00 GMT | 13.9 | -50.27 | 60 mph | -- | Tropical Storm | -- |
| Aug 21 | 06:00 GMT | 13.7 | -49.1 | 50 mph | -- | Tropical Storm | -- |
| Aug 21 | 03:00 GMT | 13.48 | -47.91 | 50 mph | -- | Tropical Storm | -- |
| Aug 21 | 00:00 GMT | 13.3 | -46.7 | 45 mph | -- | Tropical Storm | -- |
| Aug 20 | 21:00 GMT | 13.18 | -45.5 | 45 mph | -- | Tropical Storm | -- |
| Aug 20 | 18:00 GMT | 13.1 | -44.3 | 45 mph | 1,003 mb | Tropical Storm | -- |
Learn more about Hurricane Cleo and the 1964 Atlantic hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones