History for Boston, MA
Thursday, February 21, 2013 — View Current Conditions
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| Actual | Average | Record | |
|---|---|---|---|
| Temperature | |||
| Mean Temperature | 29 °F | 33 °F | |
| Max Temperature | 33 °F | 40 °F | 63 °F (1906) |
| Min Temperature | 25 °F | 26 °F | -1 °F (1950) |
| Degree Days | |||
| Heating Degree Days | 36 | 32 | |
| Month to date heating degree days | 736 | 711 | |
| Since 1 July heating degree days | 3596 | 3821 | |
| Cooling Degree Days | 0 | 0 | |
| Month to date cooling degree days | 0 | 0 | |
| Year to date cooling degree days | 0 | 0 | |
| Moisture | |||
| Dew Point | 11 °F | ||
| Average Humidity | 48 | ||
| Maximum Humidity | 57 | ||
| Minimum Humidity | 39 | ||
| Precipitation | |||
| Precipitation | 0.00 in | 0.12 in | 2.45 in (1898) |
| Month to date precipitation | 3.26 | 2.37 | |
| Year to date precipitation | 4.34 | 5.73 | |
| Snow | |||
| Snow | 0.00 in | 0.40 in | 8.50 in (1947) |
| Month to date snowfall | 32.0 | 8.2 | |
| Since 1 July snowfall | 40.8 | 31.4 | |
| Snow Depth | 0.00 in | ||
| Sea Level Pressure | |||
| Sea Level Pressure | 29.88 in | ||
| Wind | |||
| Wind Speed | 18 mph (WNW) | ||
| Max Wind Speed | 26 mph | ||
| Max Gust Speed | 37 mph | ||
| Visibility | 10 miles | ||
| Events | |||
| T = Trace of Precipitation, MM = Missing Value | Source: NWS Daily Summary |
| May. 20, 2013 | Rise | Set |
|---|---|---|
| Actual Time | 6:31 AM EST | 5:24 PM EST |
| Civil Twilight | 6:03 AM EST | 5:52 PM EST |
| Nautical Twilight | 5:30 AM EST | 6:25 PM EST |
| Astronomical Twilight | 4:57 AM EST | 6:57 PM EST |
| Moon | 1:33 PM EST (2/21) | 3:37 AM EST (2/21) |
| Length Of Visible Light | 11h 49m | |
| Length of Day |
10h 52m
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| Waxing Gibbous, 83% of the Moon is Illuminated | ||||
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Feb 21
Waxing Gibbous
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Feb 25
Full
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Mar 4
Last Quarter
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Mar 11
New
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Mar 19
First Quarter
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| Time (EST) | Temp. | Windchill | Dew Point | Humidity | Pressure | Visibility | Wind Dir | Wind Speed | Gust Speed | Precip | Events | Conditions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12:54 AM | 27.0 °F | 14.3 °F | 12.9 °F | 56% | 29.78 in | 10.0 mi | West | 17.3 mph | - | N/A | Clear | |
| 1:54 AM | 27.0 °F | 16.7 °F | 12.9 °F | 56% | 29.79 in | 10.0 mi | West | 11.5 mph | - | N/A | Partly Cloudy | |
| 2:54 AM | 28.0 °F | 16.1 °F | 12.0 °F | 51% | 29.78 in | 10.0 mi | West | 16.1 mph | 24.2 mph | N/A | Scattered Clouds | |
| 3:54 AM | 27.0 °F | 15.6 °F | 12.0 °F | 53% | 29.79 in | 10.0 mi | West | 13.8 mph | 19.6 mph | N/A | Scattered Clouds | |
| 4:54 AM | 27.0 °F | 16.7 °F | 12.0 °F | 53% | 29.80 in | 10.0 mi | West | 11.5 mph | - | N/A | Scattered Clouds | |
| 5:54 AM | 26.1 °F | 13.6 °F | 10.9 °F | 53% | 29.80 in | 10.0 mi | West | 16.1 mph | - | N/A | Scattered Clouds | |
| 6:54 AM | 26.1 °F | 12.0 °F | 10.0 °F | 51% | 29.81 in | 10.0 mi | West | 20.7 mph | 31.1 mph | N/A | Scattered Clouds | |
| 7:54 AM | 26.1 °F | 12.3 °F | 10.0 °F | 51% | 29.82 in | 10.0 mi | West | 19.6 mph | 28.8 mph | N/A | Scattered Clouds | |
| 8:54 AM | 26.1 °F | 11.6 °F | 9.0 °F | 49% | 29.81 in | 10.0 mi | WNW | 21.9 mph | 28.8 mph | N/A | Scattered Clouds | |
| 9:54 AM | 28.0 °F | 14.3 °F | 9.0 °F | 45% | 29.81 in | 10.0 mi | WNW | 21.9 mph | 27.6 mph | N/A | Scattered Clouds | |
| 10:54 AM | 28.9 °F | 16.1 °F | 8.1 °F | 41% | 29.81 in | 10.0 mi | WNW | 19.6 mph | 29.9 mph | N/A | Scattered Clouds | |
| 11:54 AM | 30.0 °F | 17.9 °F | 10.0 °F | 43% | 29.81 in | 10.0 mi | WNW | 18.4 mph | 25.3 mph | N/A | Scattered Clouds | |
| 12:54 PM | 30.9 °F | 19.8 °F | 10.0 °F | 42% | 29.81 in | 10.0 mi | NW | 16.1 mph | 26.5 mph | N/A | Scattered Clouds | |
| 1:54 PM | 32.0 °F | 18.9 °F | 10.0 °F | 40% | 29.81 in | 10.0 mi | NNW | 24.2 mph | 34.5 mph | N/A | Scattered Clouds | |
| 2:54 PM | 32.0 °F | 20.1 °F | 12.0 °F | 44% | 29.83 in | 10.0 mi | NW | 19.6 mph | 26.5 mph | N/A | Scattered Clouds | |
| 3:54 PM | 32.0 °F | 20.8 °F | 12.0 °F | 44% | 29.86 in | 10.0 mi | NNW | 17.3 mph | 26.5 mph | N/A | Mostly Cloudy | |
| 4:54 PM | 30.9 °F | 18.1 °F | 12.0 °F | 46% | 29.91 in | 10.0 mi | NW | 21.9 mph | 32.2 mph | N/A | Mostly Cloudy | |
| 5:54 PM | 30.0 °F | 19.1 °F | 12.0 °F | 47% | 29.95 in | 10.0 mi | NW | 15.0 mph | 25.3 mph | N/A | Mostly Cloudy | |
| 6:54 PM | 28.0 °F | 14.3 °F | 10.9 °F | 49% | 30.01 in | 10.0 mi | NNW | 21.9 mph | 31.1 mph | N/A | Mostly Cloudy | |
| 7:54 PM | 27.0 °F | 13.9 °F | 12.0 °F | 53% | 30.04 in | 10.0 mi | NW | 18.4 mph | 27.6 mph | N/A | Partly Cloudy | |
| 8:54 PM | 27.0 °F | 13.5 °F | 12.9 °F | 56% | 30.08 in | 10.0 mi | NNW | 19.6 mph | 25.3 mph | N/A | Partly Cloudy | |
| 9:54 PM | 27.0 °F | 14.3 °F | 12.9 °F | 56% | 30.10 in | 10.0 mi | NW | 17.3 mph | 23.0 mph | N/A | Partly Cloudy | |
| 10:54 PM | 27.0 °F | 15.6 °F | 14.0 °F | 58% | 30.13 in | 10.0 mi | NW | 13.8 mph | - | N/A | Clear | |
| 11:54 PM | 27.0 °F | 16.1 °F | 14.0 °F | 58% | 30.17 in | 10.0 mi | NW | 12.7 mph | - | N/A | Clear | |
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