History for Portland, ME
Thursday, November 29, 2012 — View Current Conditions
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| Actual | Average | Record | |
|---|---|---|---|
| Temperature | |||
| Mean Temperature | 31 °F | 35 °F | |
| Max Temperature | 41 °F | 43 °F | 63 °F (1990) |
| Min Temperature | 21 °F | 27 °F | 5 °F (1940) |
| Degree Days | |||
| Heating Degree Days | 34 | 30 | |
| Month to date heating degree days | 764 | 737 | |
| Since 1 July heating degree days | 1299 | 1461 | |
| Cooling Degree Days | 0 | 0 | |
| Month to date cooling degree days | 0 | 0 | |
| Year to date cooling degree days | 492 | 359 | |
| Moisture | |||
| Dew Point | 19 °F | ||
| Average Humidity | 63 | ||
| Maximum Humidity | 92 | ||
| Minimum Humidity | 33 | ||
| Precipitation | |||
| Precipitation | T in | 0.15 in | 1.98 in (1963) |
| Month to date precipitation | 1.02 | 4.78 | |
| Year to date precipitation | 46.17 | 43.08 | |
| Snow | |||
| Snow | 0.10 in | 0.10 in | 4.10 in (1959) |
| Month to date snowfall | 2.9 | 1.7 | |
| Since 1 July snowfall | 2.9 | 1.7 | |
| Since 1 September snowfall | 2.9 | 1.7 | |
| Snow Depth | 0.00 in | ||
| Sea Level Pressure | |||
| Sea Level Pressure | 30.13 in | ||
| Wind | |||
| Wind Speed | 9 mph (West) | ||
| Max Wind Speed | 22 mph | ||
| Max Gust Speed | 30 mph | ||
| Visibility | 10 miles | ||
| Events | Snow | ||
| T = Trace of Precipitation, MM = Missing Value | Source: NWS Daily Summary |
| May. 20, 2013 | Rise | Set |
|---|---|---|
| Actual Time | 6:53 AM EST | 4:06 PM EST |
| Civil Twilight | 6:21 AM EST | 4:38 PM EST |
| Nautical Twilight | 5:45 AM EST | 5:13 PM EST |
| Astronomical Twilight | 5:10 AM EST | 5:48 PM EST |
| Moon | 5:06 PM EST (11/29) | 7:37 AM EST (11/29) |
| Length Of Visible Light | 10h 17m | |
| Length of Day |
9h 13m
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| Full, 99% of the Moon is Illuminated | ||||
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Nov 29
Full
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Dec 6
Last Quarter
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Dec 13
New
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Dec 20
First Quarter
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Dec 28
Full
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| Time (EST) | Temp. | Windchill | Dew Point | Humidity | Pressure | Visibility | Wind Dir | Wind Speed | Gust Speed | Precip | Events | Conditions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12:51 AM | 21.9 °F | - | 19.0 °F | 89% | 30.09 in | 10.0 mi | Calm | Calm | - | N/A | Clear | |
| 1:51 AM | 24.8 °F | 16.9 °F | 19.4 °F | 80% | 30.10 in | 10.0 mi | SW | 6.9 mph | - | N/A | Clear | |
| 2:51 AM | 26.1 °F | 19.4 °F | 19.0 °F | 75% | 30.11 in | 10.0 mi | WSW | 5.8 mph | - | N/A | Clear | |
| 3:51 AM | 28.0 °F | 20.8 °F | 21.0 °F | 75% | 30.11 in | 10.0 mi | WSW | 6.9 mph | - | N/A | Clear | |
| 4:51 AM | 26.1 °F | 16.8 °F | 19.9 °F | 78% | 30.13 in | 10.0 mi | West | 9.2 mph | - | N/A | Clear | |
| 5:51 AM | 24.1 °F | 15.2 °F | 19.0 °F | 81% | 30.14 in | 10.0 mi | West | 8.1 mph | - | N/A | Clear | |
| 6:51 AM | 28.9 °F | 21.1 °F | 19.9 °F | 69% | 30.16 in | 10.0 mi | West | 8.1 mph | - | N/A | Clear | |
| 7:51 AM | 30.0 °F | 19.5 °F | 17.1 °F | 59% | 30.19 in | 10.0 mi | NW | 13.8 mph | - | N/A | Clear | |
| 8:51 AM | 33.1 °F | 21.5 °F | 14.0 °F | 46% | 30.21 in | 10.0 mi | WNW | 19.6 mph | 26.5 mph | N/A | Clear | |
| 9:51 AM | 35.1 °F | 24.1 °F | 12.0 °F | 39% | 30.20 in | 10.0 mi | WNW | 19.6 mph | - | N/A | Clear | |
| 10:51 AM | 37.0 °F | 31.0 °F | 12.9 °F | 37% | 30.19 in | 10.0 mi | West | 8.1 mph | 20.7 mph | N/A | Clear | |
| 11:51 AM | 39.9 °F | 32.9 °F | 12.9 °F | 33% | 30.15 in | 10.0 mi | West | 11.5 mph | 19.6 mph | N/A | Partly Cloudy | |
| 12:51 PM | 39.9 °F | 32.1 °F | 16.0 °F | 38% | 30.12 in | 10.0 mi | West | 13.8 mph | 21.9 mph | N/A | Scattered Clouds | |
| 1:51 PM | 41.0 °F | 31.9 °F | 18.0 °F | 40% | 30.10 in | 10.0 mi | West | 19.6 mph | 26.5 mph | N/A | Scattered Clouds | |
| 2:51 PM | 41.0 °F | 33.9 °F | 19.0 °F | 41% | 30.08 in | 10.0 mi | WSW | 12.7 mph | 18.4 mph | N/A | Partly Cloudy | |
| 3:51 PM | 39.0 °F | 31.8 °F | 19.0 °F | 45% | 30.08 in | 10.0 mi | WSW | 11.5 mph | - | N/A | Scattered Clouds | |
| 4:51 PM | 37.9 °F | 32.1 °F | 19.9 °F | 48% | 30.07 in | 10.0 mi | SW | 8.1 mph | - | N/A | Scattered Clouds | |
| 5:51 PM | 37.4 °F | 32.8 °F | 19.4 °F | 48% | 30.07 in | 10.0 mi | SW | 5.8 mph | - | N/A | Partly Cloudy | |
| 6:51 PM | 37.0 °F | 30.4 °F | 19.0 °F | 48% | 30.07 in | 10.0 mi | SW | 9.2 mph | - | N/A | Partly Cloudy | |
| 7:51 PM | 35.1 °F | 30.1 °F | 19.0 °F | 52% | 30.09 in | 10.0 mi | WSW | 5.8 mph | - | N/A | Partly Cloudy | |
| 8:51 PM | 37.9 °F | 33.5 °F | 19.9 °F | 48% | 30.10 in | 10.0 mi | SSW | 5.8 mph | - | N/A | Overcast | |
| 9:51 PM | 36.0 °F | 31.1 °F | 23.0 °F | 59% | 30.14 in | 9.0 mi | WNW | 5.8 mph | - | 0.00 in | Overcast | |
| 10:22 PM | 35.6 °F | 28.0 °F | 26.6 °F | 70% | 30.16 in | 9.0 mi | NNW | 10.4 mph | 18.4 mph | 0.00 in | Snow | Light Snow |
| 10:51 PM | 34.0 °F | 29.8 °F | 27.0 °F | 75% | 30.17 in | 6.0 mi | North | 4.6 mph | - | 0.00 in | Snow | Light Snow |
| 11:51 PM | 33.1 °F | 27.7 °F | 25.0 °F | 72% | 30.20 in | 10.0 mi | North | 5.8 mph | - | 0.00 in | Overcast | |
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