Weather History for KSFO - February, 2010
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Saturday, February 27, 2010
| Actual | Average | Record | |
|---|---|---|---|
| Temperature | |||
| Mean Temperature | 55 °F | 54 °F | |
| Max Temperature | 59 °F | 61 °F | 75 °F (1992) |
| Min Temperature | 50 °F | 47 °F | 32 °F (1951) |
| Degree Days | |||
| Heating Degree Days | 10 | 11 | |
| Month to date heating degree days | 288 | 327 | |
| Since 1 July heating degree days | 1700 | 1794 | |
| Cooling Degree Days | 0 | 0 | |
| Month to date cooling degree days | 0 | 0 | |
| Year to date cooling degree days | 0 | 0 | |
| Growing Degree Days | 4 (Base 50) | ||
| Moisture | |||
| Dew Point | 48 °F | ||
| Average Humidity | 78 | ||
| Maximum Humidity | 89 | ||
| Minimum Humidity | 67 | ||
| Precipitation | |||
| Precipitation | 0.13 in | 0.13 in | 1.17 in (2006) |
| Month to date precipitation | 2.70 | 3.92 | |
| Year to date precipitation | 8.67 | 8.11 | |
| Since 1 July precipitation | 15.17 | ||
| Sea Level Pressure | |||
| Sea Level Pressure | 29.69 in | ||
| Wind | |||
| Wind Speed | 9 mph (WNW) | ||
| Max Wind Speed | 17 mph | ||
| Max Gust Speed | 20 mph | ||
| Visibility | 10 miles | ||
| Events | Rain | ||
| T = Trace of Precipitation, MM = Missing Value | Source: NWS Daily Summary |
Daily Weather History Graph
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Astronomy
| Feb. 27, 2010 | Rise | Set |
|---|---|---|
| Actual Time | 6:43 AM PST | 6:01 PM PST |
| Civil Twilight | 6:17 AM PST | 6:27 PM PST |
| Nautical Twilight | 5:46 AM PST | 6:58 PM PST |
| Astronomical Twilight | 5:16 AM PST | 7:28 PM PST |
| Moon | 5:19 PM PST (2/27) | 5:52 AM PST (2/27) |
| Length of Visible Light | 12h 10m | |
| Length of Day |
11h 17m
|
|
| Waxing Gibbous, 99% of the Moon is Illuminated | ||||
| Feb 27 Waxing Gibbous | Feb 28 Full | Mar 7 Last Quarter | Mar 15 New | Mar 23 First Quarter |
Hourly Weather History & Observations
| Time (PST) | Temp. | Dew Point | Humidity | Pressure | Visibility | Wind Dir | Wind Speed | Gust Speed | Precip | Events | Conditions |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12:25 AM | 51.8 °F | 46.4 °F | 82% | 29.69 in | 10.0 mi | SSE | 8.1 mph | - | N/A | Scattered Clouds | |
| 12:56 AM | 51.1 °F | 46.9 °F | 86% | 29.68 in | 10.0 mi | SSE | 8.1 mph | - | N/A | Mostly Cloudy | |
| 1:56 AM | 51.1 °F | 46.9 °F | 86% | 29.65 in | 10.0 mi | SSE | 8.1 mph | - | N/A | Mostly Cloudy | |
| 2:56 AM | 51.1 °F | 46.9 °F | 86% | 29.63 in | 8.0 mi | South | 11.5 mph | - | 0.02 in | Rain | Rain |
| 3:56 AM | 50.0 °F | 46.0 °F | 86% | 29.61 in | 10.0 mi | SE | 6.9 mph | - | 0.08 in | Rain | Light Rain |
| 4:56 AM | 51.1 °F | 45.0 °F | 80% | 29.61 in | 10.0 mi | ESE | 10.4 mph | - | 0.02 in | Rain | Light Rain |
| 5:56 AM | 50.0 °F | 46.9 °F | 89% | 29.60 in | 10.0 mi | South | 5.8 mph | - | 0.00 in | Overcast | |
| 6:27 AM | 51.8 °F | 48.2 °F | 88% | 29.60 in | 10.0 mi | Variable | 3.5 mph | - | N/A | Overcast | |
| 6:56 AM | 50.0 °F | 46.9 °F | 89% | 29.60 in | 10.0 mi | Calm | Calm | - | N/A | Overcast | |
| 7:56 AM | 52.0 °F | 46.9 °F | 83% | 29.61 in | 10.0 mi | ESE | 4.6 mph | - | N/A | Mostly Cloudy | |
| 8:56 AM | 53.1 °F | 48.0 °F | 83% | 29.62 in | 10.0 mi | Calm | Calm | - | N/A | Mostly Cloudy | |
| 9:56 AM | 55.0 °F | 48.0 °F | 77% | 29.64 in | 10.0 mi | NNE | 3.5 mph | - | N/A | Overcast | |
| 10:56 AM | 55.9 °F | 50.0 °F | 80% | 29.65 in | 10.0 mi | NNW | 5.8 mph | - | N/A | Mostly Cloudy | |
| 11:56 AM | 55.9 °F | 48.9 °F | 77% | 29.66 in | 10.0 mi | West | 8.1 mph | - | N/A | Mostly Cloudy | |
| 12:46 PM | 55.4 °F | 48.2 °F | 77% | 29.66 in | 9.0 mi | North | 16.1 mph | - | 0.00 in | Rain | Light Rain |
| 12:56 PM | 55.0 °F | 48.0 °F | 77% | 29.66 in | 9.0 mi | North | 16.1 mph | - | 0.01 in | Rain | Light Rain |
| 1:56 PM | 55.9 °F | 48.0 °F | 75% | 29.67 in | 10.0 mi | North | 13.8 mph | - | 0.00 in | Mostly Cloudy | |
| 2:56 PM | 59.0 °F | 48.9 °F | 69% | 29.69 in | 10.0 mi | NNW | 12.7 mph | - | N/A | Scattered Clouds | |
| 3:56 PM | 57.0 °F | 48.0 °F | 72% | 29.71 in | 10.0 mi | NNW | 12.7 mph | - | N/A | Scattered Clouds | |
| 4:56 PM | 57.0 °F | 48.0 °F | 72% | 29.73 in | 10.0 mi | NNW | 9.2 mph | - | N/A | Mostly Cloudy | |
| 5:56 PM | 57.0 °F | 46.9 °F | 69% | 29.75 in | 10.0 mi | WNW | 8.1 mph | - | N/A | Mostly Cloudy | |
| 6:56 PM | 55.0 °F | 48.0 °F | 77% | 29.80 in | 10.0 mi | WNW | 12.7 mph | - | N/A | Partly Cloudy | |
| 7:56 PM | 54.0 °F | 48.0 °F | 80% | 29.81 in | 10.0 mi | West | 8.1 mph | - | N/A | Partly Cloudy | |
| 8:56 PM | 53.1 °F | 46.9 °F | 80% | 29.82 in | 10.0 mi | West | 6.9 mph | - | N/A | Clear | |
| 9:56 PM | 52.0 °F | 46.9 °F | 83% | 29.84 in | 10.0 mi | WNW | 10.4 mph | - | N/A | Partly Cloudy | |
| 10:56 PM | 54.0 °F | 50.0 °F | 86% | 29.86 in | 10.0 mi | West | 15.0 mph | - | N/A | Partly Cloudy | |
| 11:56 PM | 53.1 °F | 48.9 °F | 86% | 29.84 in | 9.0 mi | WNW | 6.9 mph | - | N/A | Scattered Clouds |