Scientific Investigations Report 2006-5252
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5252
Table 5. Monthly mean meteorological and water-temperature data measured at four floating instrumented platforms on Lake Mead, Arizona and Nevada, 1997–99.
[Symbol: –, no data]
| Site | Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | ||||||||||||
| Air temperature, in degrees Fahrenheit | ||||||||||||
| Water Barge Cove | – | 54.3 | 62.6 | 66.2 | 90.32 | 83.12 | 86.9 | 88.9 | 81.3 | 68.4 | 58.5 | 48.6 |
| Sentinel Island | – | – | – | – | – | – | 90.1 | 90.7 | 81.9 | 76.8 | 59.7 | 50.4 |
| Virgin Basin | – | – | – | – | – | – | – | – | – | – | – | – |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Water temperature at water surface, in degrees Fahrenheit | ||||||||||||
| Water Barge Cove | – | 55.9 | 59.5 | 62.1 | 68.5 | 78.1 | 81.9 | 84.4 | 82.6 | 74.1 | 66.2 | 59.9 |
| Sentinel Island | – | – | – | – | – | – | 79.7 | 82.6 | 81.1 | 79.9 | 65.8 | 57.2 |
| Virgin Basin | – | – | – | – | – | – | – | – | – | – | – | – |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Water temperature, in degrees Fahrenheit, measured at 6.6 feet below the water surface | ||||||||||||
| Water Barge Cove | – | 55.9 | 58.6 | 61.3 | 75.0 | 77.0 | 80.6 | 83.1 | 81.5 | 73.4 | 65.8 | 59.7 |
| Sentinel Island | – | – | – | – | – | – | 79.0 | 81.7 | 80.4 | 72.9 | 65.5 | 59.5 |
| Virgin Basin | – | – | – | – | – | – | – | – | – | – | – | – |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Relative humidity, in percent | ||||||||||||
| Water Barge Cove | – | 40 | 34.9 | 33.6 | 25.0 | 29.6 | 31.5 | 37.9 | 47.9 | 37.5 | 47.9 | 43.0 |
| Sentinel Island | – | – | – | – | – | – | 33.8 | 38.5 | 50.1 | 44.0 | 50.1 | 45.7 |
| Virgin Basin | – | – | – | – | – | – | – | – | – | – | – | – |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Wind speed, in miles per hour, measured at 6.6 feet above the water surface | ||||||||||||
| Water Barge Cove | – | 6.02 | 5.12 | 6.91 | 6.35 | 7.52 | 5.48 | 6.38 | 4.54 | 5.37 | 3.53 | 4.41 |
| Sentinel Island | – | – | – | – | – | – | 5.75 | – | 7.16 | 7.63 | 6.69 | 7.83 |
| Virgin Basin | – | – | – | – | – | – | – | – | – | – | – | – |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| 1998 | ||||||||||||
| Air temperature, in degrees Fahrenheit | ||||||||||||
| Water Barge Cove | 49.8 | 50.5 | 56.3 | 61.2 | 69.4 | 79.0 | 89.1 | 89.8 | 80.6 | 67.8 | 56.7 | 49.1 |
| Sentinel Island | 51.1 | 51.3 | 56.8 | 61.2 | 69.4 | 78.8 | 89.1 | 89.8 | 81.0 | 68.7 | 58.3 | 50.9 |
| Virgin Basin | – | – | – | 61.9 | 68.4 | 77.2 | 87.1 | 87.8 | 78.8 | 66.7 | 56.1 | 48.4 |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Water temperature at water surface, in degrees Fahrenheit | ||||||||||||
| Water Barge Cove | 56.7 | 55.8 | 57.9 | 61.0 | 68.4 | 75.0 | 84.2 | 85.6 | 82.2 | 72.7 | 65.3 | 59.5 |
| Sentinel Island | 55.8 | 54.7 | 56.3 | 59.4 | 65.1 | 72.5 | 81.0 | 83.3 | 81.0 | 71.6 | 65.0 | 59.4 |
| Virgin Basin | – | – | – | 59.0 | 63.3 | 70.5 | 80.6 | 82.9 | 79.9 | 70.2 | 63.9 | 57.9 |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Water temperature, in degrees Fahrenheit, measured at 6.6 feet below the water surface | ||||||||||||
| Water Barge Cove | 56.7 | 56.1 | 58.3 | 61.2 | 68.3 | 74.7 | 83.3 | 84.7 | 81.7 | 72.3 | 65.3 | 59.7 |
| Sentinel Island | 56.1 | 55.0 | 56.3 | 59.4 | 64.8 | 72.0 | 81.1 | 83.5 | 81.0 | 71.6 | 65.0 | 59.4 |
| Virgin Basin | – | – | – | 59.4 | 64.0 | 71.2 | 81.3 | 83.5 | 80.6 | 70.9 | 64.4 | 58.6 |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Relative humidity, in percent | ||||||||||||
| Water Barge Cove | 55.3 | 58.0 | 50.3 | 43.3 | 36.2 | 33.1 | 37.7 | 36.4 | 41.9 | 38.5 | 47.4 | 41.8 |
| Sentinel Island | 57.0 | 58.6 | 50.3 | 43.3 | 37.0 | 34.3 | 39.2 | 38.3 | 44.0 | 41.7 | 47.6 | 45.6 |
| Virgin Basin | – | – | – | 44.2 | 39.5 | 36.6 | 43.6 | 43.2 | 48.8 | 46.3 | 52.8 | 51.3 |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| Wind speed, in miles per hour, measured at 6.6 feet above the water surface | ||||||||||||
| Water Barge Cove | 4.38 | 7.65 | 5.91 | 6.85 | 7.14 | 6.00 | 6.17 | 6.40 | 6.13 | 5.10 | 4.88 | 6.60 |
| Sentinel Island | 6.58 | 9.57 | 8.37 | 8.26 | 9.17 | 7.87 | 7.67 | 7.36 | 6.89 | 7.94 | 7.47 | 9.44 |
| Virgin Basin | – | – | – | 8.19 | 9.87 | 9.15 | 8.03 | 8.05 | 8.43 | 7.87 | 7.70 | 9.04 |
| Overton Arm | – | – | – | – | – | – | – | – | – | – | – | – |
| 1999 | ||||||||||||
| Air temperature, in degrees Fahrenheit | ||||||||||||
| Water Barge Cove | 51.1 | 52.3 | 59.5 | 59.5 | 72.9 | 82.9 | 86.2 | 87.3 | 81.7 | 70.3 | 59.4 | 50.9 |
| Sentinel Island | 52.2 | 53.2 | 59.9 | 59.5 | 72.7 | 82.9 | 86.4 | 87.3 | 82.2 | 72.9 | – | – |
| Virgin Basin | 49.6 | 51.4 | 58.1 | 58.5 | 70.7 | 80.6 | 84.7 | 85.6 | 79.7 | 68.9 | 58.1 | 58.2 |
| Overton Arm | – | – | 58.1 | 58.8 | 71.1 | 80.8 | 84.9 | 86.5 | 80.6 | 68.5 | 57.6 | 49.6 |
| Water temperature at water surface, in degrees Fahrenheit | ||||||||||||
| Water Barge Cove | 56.1 | 55.4 | 58.1 | 59.9 | 68.2 | 77.2 | 81.1 | 82.4 | 80.4 | 73.6 | 66.6 | 59.4 |
| Sentinel Island | 55.8 | 54.9 | 55.9 | 58.8 | 66.2 | 72.9 | 79.3 | 81.5 | 79.2 | 72.3 | – | – |
| Virgin Basin | 55.0 | 54.3 | 55.9 | 58.1 | 65.1 | 71.8 | 79.7 | 81.7 | 79.2 | 72.3 | 65.7 | 59.2 |
| Overton Arm | – | – | 56.7 | 59.7 | 66.6 | 75.4 | 81.9 | 83.5 | 81.9 | 75.0 | 68.0 | 60.8 |
| Water temperature, in degrees Fahrenheit, measured at surface and 6.6 feet below water surface | ||||||||||||
| Water Barge Cove | 56.3 | 55.8 | 57.9 | 59.5 | 68.2 | 77.2 | 82.2 | 83.5 | 81.9 | 75.0 | 68.0 | 60.8 |
| Sentinel Island | 55.9 | 54.9 | 55.9 | 58.6 | 66.0 | 73.2 | 79.7 | 81.7 | 80.4 | 75.2 | – | – |
| Virgin Basin | 55.6 | 54.9 | 56.7 | 58.8 | 65.8 | 72.5 | 80.6 | 82.0 | 79.7 | 72.5 | 65.8 | 58.8 |
| Overton Arm | – | – | 56.7 | 59.0 | 65.8 | 75.0 | 81.5 | 82.9 | 80.1 | 71.2 | 64.9 | 58.1 |
| Relative humidity, in percent | ||||||||||||
| Water Barge Cove | 44.5 | 43.8 | 38.3 | 39.9 | 31.1 | 29.0 | 41.0 | 35.0 | 36.5 | 33.4 | 40.3 | 37.4 |
| Sentinel Island | 48.4 | 47.7 | 39.9 | 42.8 | 35.3 | 28.8 | 42.7 | 37.3 | 39.7 | 39.0 | – | – |
| Virgin Basin | 53.3 | 52.1 | 44.2 | 46.6 | 38.8 | 32.8 | 48.3 | 42.5 | 45.8 | 41.7 | 48.5 | 46.7 |
| Overton Arm | – | – | 47.1 | 48.4 | 39.9 | 38.4 | 50.7 | 42.5 | 43.2 | 40.9 | 47.8 | 44.5 |
| Wind speed, in miles per hour, measured at 6.6 feet above the water surface | ||||||||||||
| Water Barge Cove | 5.03 | 5.06 | 6.42 | 6.64 | 7.40 | 5.91 | 6.76 | 6.40 | 5.15 | 4.18 | 3.74 | 4.77 |
| Sentinel Island | 8.05 | 7.32 | 8.64 | 9.19 | 7.61 | 9.22 | 8.55 | 7.38 | 8.41 | 9.02 | – | – |
| Virgin Basin | 7.20 | 7.58 | 9.11 | 9.73 | 8.14 | 9.75 | 8.34 | 7.76 | 8.21 | 7.96 | 6.67 | 9.26 |
| Overton Arm | – | – | 9.24 | 9.62 | 8.19 | 9.37 | 8.43 | 7.65 | 6.47 | 5.62 | 8.32 | – |
U.S.
Department of the Interior | U.S. Geological
Survey
Persistent URL: https://pubs.water.usgs.gov/sir20065252
Page Contact Information: Publications Team
Page Last Modified: Thursday, 01-Dec-2016 19:29:28 EST
