Weather History for KSFO - May, 2019
| Actual | Average | Record | |
|---|---|---|---|
| Temperature | |||
| Mean Temperature | 57 °F | 59 °F | |
| Max Temperature | 65 °F | 67 °F | 91 °F (1987) |
| Min Temperature | 49 °F | 51 °F | 41 °F (1965) |
| Degree Days | |||
| Heating Degree Days | 8 | 7 | |
| Month to date heating degree days | 33 | 35 | |
| Since 1 July heating degree days | 2152 | 2403 | |
| Cooling Degree Days | 0 | 0 | |
| Month to date cooling degree days | 0 | 0 | |
| Year to date cooling degree days | 9 | 6 | |
| Growing Degree Days | 8 (Base 50) | ||
| Moisture | |||
| Dew Point | 44 °F | ||
| Average Humidity | 63 | ||
| Maximum Humidity | 74 | ||
| Minimum Humidity | 52 | ||
| Precipitation | |||
| Precipitation | T in | 0.02 in | 0.24 in (1983) |
| Month to date precipitation | T | 0.12 | |
| Year to date precipitation | 16.43 | 12.62 | |
| Sea Level Pressure | |||
| Sea Level Pressure | 29.86 in | ||
| Wind | |||
| Wind Speed | 11 mph (SW) | ||
| Max Wind Speed | 23 mph | ||
| Max Gust Speed | 28 mph | ||
| Visibility | 10 miles | ||
| Events | |||
| T = Trace of Precipitation, MM = Missing Value | Source: NWS Daily Summary |
Daily Weather History Graph
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Astronomy
| May. 05, 2019 | Rise | Set |
|---|---|---|
| Actual Time | 6:09 AM PDT | 8:03 PM PDT |
| Civil Twilight | 5:41 AM PDT | 8:31 PM PDT |
| Nautical Twilight | 5:06 AM PDT | 9:06 PM PDT |
| Astronomical Twilight | 4:29 AM PDT | 9:43 PM PDT |
| Moon | 6:56 AM PDT (5/5) | 9:02 PM PDT (5/5) |
| Length of Visible Light | 14h 50m | |
| Length of Day |
13h 53m
|
|
| New Moon, 1% of the Moon is Illuminated | ||||
| May 5 New Moon | May 11 First Quarter | May 18 Full | May 26 Last Quarter | Jun 3 New |
Hourly Weather History & Observations
| Time (PDT) | Temp. | Dew Point | Humidity | Pressure | Visibility | Wind Dir | Wind Speed | Gust Speed | Precip | Events | Conditions |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12:56 AM | 51.1 °F | 43.0 °F | 74% | 29.87 in | 10.0 mi | West | 11.5 mph | - | N/A | Partly Cloudy | |
| 1:56 AM | 50.0 °F | 43.0 °F | 77% | 29.86 in | 10.0 mi | SW | 6.9 mph | - | N/A | Partly Cloudy | |
| 2:56 AM | 51.1 °F | 43.0 °F | 74% | 29.86 in | 10.0 mi | SSW | 8.1 mph | - | N/A | Partly Cloudy | |
| 3:56 AM | 50.0 °F | 43.0 °F | 77% | 29.86 in | 10.0 mi | SSW | 4.6 mph | - | N/A | Scattered Clouds | |
| 4:54 AM | 53.6 °F | 42.8 °F | 67% | 29.87 in | 10.0 mi | SSW | 10.4 mph | - | N/A | Mostly Cloudy | |
| 4:56 AM | 53.1 °F | 43.0 °F | 69% | 29.87 in | 10.0 mi | SSW | 9.2 mph | - | N/A | Mostly Cloudy | |
| 5:56 AM | 53.1 °F | 43.0 °F | 69% | 29.88 in | 10.0 mi | SW | 12.7 mph | - | N/A | Overcast | |
| 6:56 AM | 54.0 °F | 43.0 °F | 66% | 29.88 in | 10.0 mi | SSW | 4.6 mph | - | N/A | Overcast | |
| 7:56 AM | 54.0 °F | 43.0 °F | 66% | 29.88 in | 10.0 mi | South | 4.6 mph | - | N/A | Overcast | |
| 8:56 AM | 53.1 °F | 43.0 °F | 69% | 29.87 in | 10.0 mi | SSW | 6.9 mph | - | N/A | Mostly Cloudy | |
| 9:56 AM | 55.9 °F | 44.1 °F | 64% | 29.87 in | 10.0 mi | Calm | Calm | - | N/A | Mostly Cloudy | |
| 10:56 AM | 60.1 °F | 44.1 °F | 55% | 29.87 in | 10.0 mi | West | 10.4 mph | - | N/A | Mostly Cloudy | |
| 11:56 AM | 59.0 °F | 44.1 °F | 58% | 29.87 in | 10.0 mi | SW | 10.4 mph | - | N/A | Mostly Cloudy | |
| 12:56 PM | 61.0 °F | 44.1 °F | 54% | 29.86 in | 10.0 mi | West | 13.8 mph | - | N/A | Mostly Cloudy | |
| 1:56 PM | 62.1 °F | 44.1 °F | 52% | 29.86 in | 10.0 mi | WSW | 21.9 mph | 27.6 mph | N/A | Mostly Cloudy | |
| 2:56 PM | 62.1 °F | 44.1 °F | 52% | 29.86 in | 10.0 mi | West | 20.7 mph | 25.3 mph | N/A | Scattered Clouds | |
| 3:56 PM | 62.1 °F | 46.0 °F | 56% | 29.85 in | 10.0 mi | SW | 17.3 mph | - | N/A | Scattered Clouds | |
| 4:56 PM | 59.0 °F | 46.9 °F | 64% | 29.84 in | 10.0 mi | SW | 11.5 mph | 23.0 mph | N/A | Mostly Cloudy | |
| 5:56 PM | 59.0 °F | 46.0 °F | 62% | 29.85 in | 10.0 mi | SW | 12.7 mph | - | N/A | Mostly Cloudy | |
| 6:56 PM | 57.0 °F | 46.0 °F | 67% | 29.85 in | 10.0 mi | West | 10.4 mph | - | N/A | Mostly Cloudy | |
| 7:56 PM | 55.0 °F | 45.0 °F | 69% | 29.83 in | 10.0 mi | WSW | 12.7 mph | - | N/A | Mostly Cloudy | |
| 8:56 PM | 55.0 °F | 46.9 °F | 74% | 29.83 in | 10.0 mi | West | 12.7 mph | - | 0.00 in | Overcast | |
| 9:56 PM | 54.0 °F | 45.0 °F | 72% | 29.86 in | 10.0 mi | WSW | 17.3 mph | - | N/A | Overcast | |
| 10:46 PM | 54.0 °F | 45.0 °F | 72% | 29.86 in | 10.0 mi | SW | 10.4 mph | - | N/A | Overcast | |
| 10:56 PM | 54.0 °F | 45.0 °F | 72% | 29.87 in | 10.0 mi | WSW | 6.9 mph | - | N/A | Overcast | |
| 11:56 PM | 54.0 °F | 45.0 °F | 72% | 29.89 in | 10.0 mi | West | 8.1 mph | - | N/A | Overcast |