Weather History for KSEA - May, 2019
| Actual | Average | Record | |
|---|---|---|---|
| Temperature | |||
| Mean Temperature | 53 °F | 53 °F | |
| Max Temperature | 59 °F | 62 °F | 87 °F (2016) |
| Min Temperature | 47 °F | 45 °F | 33 °F (1952) |
| Degree Days | |||
| Heating Degree Days | 12 | 12 | |
| Month to date heating degree days | 23 | 24 | |
| Since 1 July heating degree days | 3883 | 4292 | |
| Cooling Degree Days | 0 | 0 | |
| Month to date cooling degree days | 0 | 0 | |
| Year to date cooling degree days | 6 | 0 | |
| Growing Degree Days | 2 (Base 50) | ||
| Moisture | |||
| Dew Point | 38 °F | ||
| Average Humidity | 59 | ||
| Maximum Humidity | 71 | ||
| Minimum Humidity | 47 | ||
| Precipitation | |||
| Precipitation | 0.00 in | 0.06 in | 0.47 in (1975) |
| Month to date precipitation | 0.00 | 0.13 | |
| Year to date precipitation | 13.35 | 15.63 | |
| Sea Level Pressure | |||
| Sea Level Pressure | 30.17 in | ||
| Wind | |||
| Wind Speed | 10 mph (SSW) | ||
| Max Wind Speed | 18 mph | ||
| Max Gust Speed | 23 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. 02, 2019 | Rise | Set |
|---|---|---|
| Actual Time | 5:51 AM PDT | 8:22 PM PDT |
| Civil Twilight | 5:16 AM PDT | 8:56 PM PDT |
| Nautical Twilight | 4:33 AM PDT | 9:40 PM PDT |
| Astronomical Twilight | 3:43 AM PDT | 10:30 PM PDT |
| Moon | 5:22 AM PDT (5/2) | 6:00 PM PDT (5/2) |
| Length of Visible Light | 15h 40m | |
| Length of Day |
14h 31m
|
|
| Waning Crescent, 5% of the Moon is Illuminated | ||||
| May 2 Waning Crescent | May 4 New | May 11 First Quarter | May 18 Full | May 26 Last Quarter |
Hourly Weather History & Observations
| Time (PDT) | Temp. | Dew Point | Humidity | Pressure | Visibility | Wind Dir | Wind Speed | Gust Speed | Precip | Events | Conditions |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12:53 AM | 48.9 °F | 37.9 °F | 66% | 30.10 in | 10.0 mi | SSW | 10.4 mph | - | N/A | Overcast | |
| 1:53 AM | 48.9 °F | 37.9 °F | 66% | 30.11 in | 10.0 mi | South | 12.7 mph | - | N/A | Overcast | |
| 2:53 AM | 48.0 °F | 39.0 °F | 71% | 30.11 in | 10.0 mi | SSW | 13.8 mph | - | N/A | Overcast | |
| 3:53 AM | 48.0 °F | 37.9 °F | 68% | 30.12 in | 10.0 mi | SSW | 13.8 mph | - | N/A | Overcast | |
| 4:53 AM | 46.9 °F | 37.9 °F | 71% | 30.13 in | 10.0 mi | SSW | 16.1 mph | - | N/A | Overcast | |
| 5:53 AM | 46.9 °F | 37.0 °F | 68% | 30.14 in | 10.0 mi | SSW | 13.8 mph | - | N/A | Overcast | |
| 6:53 AM | 46.9 °F | 36.0 °F | 66% | 30.15 in | 10.0 mi | SSW | 12.7 mph | 23.0 mph | N/A | Overcast | |
| 7:53 AM | 48.0 °F | 36.0 °F | 63% | 30.17 in | 10.0 mi | SSW | 10.4 mph | - | N/A | Mostly Cloudy | |
| 8:53 AM | 48.9 °F | 36.0 °F | 61% | 30.19 in | 10.0 mi | South | 13.8 mph | - | N/A | Mostly Cloudy | |
| 9:37 AM | 50.0 °F | 36.0 °F | 59% | 30.17 in | 10.0 mi | SSW | 11.5 mph | - | N/A | Mostly Cloudy | |
| 9:53 AM | 50.0 °F | 36.0 °F | 59% | 30.19 in | 10.0 mi | SSW | 13.8 mph | - | N/A | Mostly Cloudy | |
| 10:53 AM | 51.1 °F | 37.0 °F | 59% | 30.21 in | 10.0 mi | SSW | 9.2 mph | - | N/A | Mostly Cloudy | |
| 11:53 AM | 54.0 °F | 37.9 °F | 55% | 30.21 in | 10.0 mi | South | 12.7 mph | - | N/A | Mostly Cloudy | |
| 12:53 PM | 54.0 °F | 37.9 °F | 55% | 30.21 in | 10.0 mi | South | 9.2 mph | 16.1 mph | N/A | Scattered Clouds | |
| 1:53 PM | 55.0 °F | 39.0 °F | 55% | 30.20 in | 10.0 mi | SSW | 10.4 mph | 19.6 mph | N/A | Mostly Cloudy | |
| 2:53 PM | 57.0 °F | 39.0 °F | 51% | 30.20 in | 10.0 mi | SSW | 9.2 mph | - | N/A | Mostly Cloudy | |
| 3:53 PM | 55.9 °F | 37.0 °F | 49% | 30.19 in | 10.0 mi | Variable | 3.5 mph | - | N/A | Mostly Cloudy | |
| 4:53 PM | 57.0 °F | 37.0 °F | 47% | 30.18 in | 10.0 mi | SE | 6.9 mph | - | N/A | Mostly Cloudy | |
| 5:53 PM | 57.9 °F | 37.9 °F | 47% | 30.17 in | 10.0 mi | SE | 9.2 mph | - | N/A | Mostly Cloudy | |
| 6:53 PM | 57.0 °F | 37.9 °F | 49% | 30.16 in | 10.0 mi | SE | 5.8 mph | - | N/A | Mostly Cloudy | |
| 7:53 PM | 57.0 °F | 39.0 °F | 51% | 30.15 in | 10.0 mi | SSE | 5.8 mph | - | N/A | Mostly Cloudy | |
| 8:53 PM | 57.0 °F | 39.0 °F | 51% | 30.17 in | 10.0 mi | SSW | 4.6 mph | - | N/A | Mostly Cloudy | |
| 9:53 PM | 54.0 °F | 41.0 °F | 62% | 30.18 in | 10.0 mi | WSW | 9.2 mph | - | N/A | Mostly Cloudy | |
| 10:53 PM | 51.1 °F | 41.0 °F | 68% | 30.19 in | 10.0 mi | WSW | 5.8 mph | - | N/A | Scattered Clouds | |
| 11:53 PM | 50.0 °F | 41.0 °F | 71% | 30.19 in | 10.0 mi | SW | 5.8 mph | - | N/A | Mostly Cloudy |