Weather History for KDCA - January, 2013
| Actual | Average | Record | |
|---|---|---|---|
| Temperature | |||
| Mean Temperature | 42 °F | 36 °F | |
| Max Temperature | 49 °F | 43 °F | 76 °F (1907) |
| Min Temperature | 34 °F | 29 °F | 5 °F (1884) |
| Degree Days | |||
| Heating Degree Days | 23 | 29 | |
| Month to date heating degree days | 183 | 203 | |
| Since 1 July heating degree days | 1497 | 1684 | |
| Cooling Degree Days | 0 | 0 | |
| Month to date cooling degree days | 0 | 0 | |
| Year to date cooling degree days | 0 | 0 | |
| Moisture | |||
| Dew Point | 25 °F | ||
| Average Humidity | 54 | ||
| Maximum Humidity | 70 | ||
| Minimum Humidity | 38 | ||
| Precipitation | |||
| Precipitation | 0.00 in | 0.09 in | 1.33 in (1908) |
| Month to date precipitation | 0.01 | 0.61 | |
| Year to date precipitation | 0.01 | 0.61 | |
| Snow | |||
| Snow | 0.00 in | 0.10 in | 13.00 in (1996) |
| Month to date snowfall | T | 0.8 | |
| Since 1 July snowfall | 0.2 | 3.6 | |
| Snow Depth | 0.00 in | ||
| Sea Level Pressure | |||
| Sea Level Pressure | 30.37 in | ||
| Wind | |||
| Wind Speed | 8 mph (NW) | ||
| Max Wind Speed | 18 mph | ||
| Max Gust Speed | 25 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
| Jan. 07, 2013 | Rise | Set |
|---|---|---|
| Actual Time | 7:26 AM EST | 5:02 PM EST |
| Civil Twilight | 6:57 AM EST | 5:32 PM EST |
| Nautical Twilight | 6:24 AM EST | 6:05 PM EST |
| Astronomical Twilight | 5:51 AM EST | 6:37 PM EST |
| Moon | 2:48 AM EST (1/7) | 1:11 PM EST (1/7) |
| Length of Visible Light | 10h 34m | |
| Length of Day |
9h 35m
|
|
| Waning Crescent, 23% of the Moon is Illuminated | ||||
| Jan 7 Waning Crescent | Jan 11 New | Jan 18 First Quarter | Jan 26 Full | Feb 3 Last Quarter |
Hourly Weather History & Observations
| Time (EST) | Temp. | Windchill | Dew Point | Humidity | Pressure | Visibility | Wind Dir | Wind Speed | Gust Speed | Precip | Events | Conditions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12:52 AM | 46.0 °F | 40.6 °F | 27.0 °F | 47% | 30.17 in | 10.0 mi | NW | 11.5 mph | 18.4 mph | N/A | Overcast | |
| 1:52 AM | 45.0 °F | 40.6 °F | 27.0 °F | 49% | 30.19 in | 10.0 mi | NW | 8.1 mph | - | N/A | Overcast | |
| 2:52 AM | 44.6 °F | 40.7 °F | 28.4 °F | 53% | 30.21 in | 10.0 mi | North | 6.9 mph | - | N/A | Overcast | |
| 3:52 AM | 45.0 °F | 39.3 °F | 28.0 °F | 52% | 30.24 in | 10.0 mi | NNW | 11.5 mph | 18.4 mph | N/A | Overcast | |
| 4:52 AM | 45.0 °F | 39.3 °F | 26.1 °F | 48% | 30.26 in | 10.0 mi | NW | 11.5 mph | 19.6 mph | N/A | Overcast | |
| 5:52 AM | 44.1 °F | 38.6 °F | 26.1 °F | 49% | 30.29 in | 10.0 mi | NNW | 10.4 mph | - | N/A | Overcast | |
| 6:52 AM | 44.1 °F | 37.4 °F | 24.1 °F | 45% | 30.32 in | 10.0 mi | NNW | 13.8 mph | 20.7 mph | N/A | Mostly Cloudy | |
| 7:52 AM | 43.0 °F | 37.7 °F | 25.0 °F | 49% | 30.35 in | 10.0 mi | NW | 9.2 mph | - | N/A | Mostly Cloudy | |
| 8:52 AM | 44.1 °F | 37.7 °F | 25.0 °F | 47% | 30.40 in | 10.0 mi | NW | 12.7 mph | 18.4 mph | N/A | Mostly Cloudy | |
| 9:52 AM | 44.1 °F | 38.1 °F | 25.0 °F | 47% | 30.44 in | 10.0 mi | NW | 11.5 mph | - | N/A | Mostly Cloudy | |
| 10:52 AM | 46.0 °F | 41.4 °F | 25.0 °F | 44% | 30.45 in | 10.0 mi | NNW | 9.2 mph | - | N/A | Mostly Cloudy | |
| 11:52 AM | 46.9 °F | - | 24.1 °F | 41% | 30.43 in | 10.0 mi | North | 11.5 mph | - | N/A | Mostly Cloudy | |
| 12:52 PM | 45.0 °F | 40.1 °F | 23.0 °F | 42% | 30.42 in | 10.0 mi | NNW | 9.2 mph | - | N/A | Scattered Clouds | |
| 1:52 PM | 46.9 °F | - | 23.0 °F | 39% | 30.41 in | 10.0 mi | North | 5.8 mph | - | N/A | Scattered Clouds | |
| 2:52 PM | 48.0 °F | - | 24.1 °F | 39% | 30.42 in | 10.0 mi | North | 9.2 mph | - | N/A | Partly Cloudy | |
| 3:52 PM | 46.9 °F | - | 23.0 °F | 39% | 30.43 in | 10.0 mi | West | 4.6 mph | - | N/A | Partly Cloudy | |
| 4:52 PM | 44.1 °F | 41.5 °F | 23.0 °F | 43% | 30.43 in | 10.0 mi | NW | 4.6 mph | - | N/A | Partly Cloudy | |
| 5:52 PM | 43.0 °F | 39.5 °F | 23.0 °F | 45% | 30.45 in | 10.0 mi | WNW | 5.8 mph | - | N/A | Clear | |
| 6:52 PM | 42.1 °F | 37.7 °F | 23.0 °F | 47% | 30.45 in | 10.0 mi | WNW | 6.9 mph | - | N/A | Clear | |
| 7:52 PM | 41.0 °F | - | 23.0 °F | 49% | 30.45 in | 10.0 mi | Calm | Calm | - | N/A | Clear | |
| 8:52 PM | 37.0 °F | 34.5 °F | 28.0 °F | 70% | 30.45 in | 10.0 mi | South | 3.5 mph | - | N/A | Clear | |
| 9:52 PM | 36.0 °F | 33.3 °F | 27.0 °F | 70% | 30.44 in | 10.0 mi | SSE | 3.5 mph | - | N/A | Clear | |
| 10:52 PM | 35.1 °F | - | 26.1 °F | 70% | 30.44 in | 10.0 mi | Calm | Calm | - | N/A | Clear | |
| 11:52 PM | 34.0 °F | - | 28.0 °F | 79% | 30.43 in | 9.0 mi | Calm | Calm | - | N/A | Partly Cloudy |