LOCAL CLIMATOLOGICAL DATA Hourly Summary December 25, 2009 Station: Seattle - Bryant Latitude: 47° 40' 26" N Longitude: 122° 17' 17" W Elevation (ground): 230 ft. Time Zone: Pacific +--+------------------------+----+-----+--------------------+------------------------+------+ | | Temperature | | Pre-| Pressure | Wind | Sun | | +------+------+------+---+ Hu-|cipi-| Adj. to Sea Level +----+---+-------+-------+------+ | | M | M | | |mid-| ta- +------+------+------+ Avg|Res| Peak | Minute| Mean | | | a | i | | D | ity| tion| | | | | +---+---+---+---+ | | | x | n | | e | | | | | | S | | S | | S | | I | | H| i | i | M | w | M | | | | M | p | | p | | p | | n | | o| m | m | e | | e |Water| M | M | e | e | D | e | D | e | D | d | | u| u | u | a | P | a | | a | i | a | e | i | e | i | e | i | e | | r| m | m | n | t | n |Equiv| x | n | n | d | r | d | r | d | r | x | | | | | | | | | | | | | | | | | | | | 1| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12| 13| 14| 15| 16| 17 | +--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ |00| 32.5 | 31.7 | 32.2 | 30| 92| 0.00| 30.15| 30.13|30.139| 2.2|358| 5| N| 3|353| | |01| 31.7 | 31.1 | 31.4 | 29| 93| 0.00| 30.13| 30.12|30.122| 2.6|350| 5| N| 4|344| | |02| 31.1 | 30.9 | 31.0 | 29| 93| 0.00| 30.13| 30.12|30.128| 2.9|349| 6| N| 4|346| | |03| 31.1 | 30.9 | 31.0 | 29| 93| 0.00| 30.13| 30.13|30.129| 2.6|358| 5|NNW| 4| 7| | | | | | | | | | | | | | | | | | | | |04| 30.9 | 30.3 | 30.6 | 29| 93| 0.00| 30.13| 30.12|30.125| 1.2|359| 7|NNW| 5|339| | |05| 30.6 | 30.3 | 30.5 | 29| 94| 0.00| 30.12| 30.11|30.113| 2.8|356| 7| N| 4|355| | |06| 30.5 | 30.2 | 30.4 | 29| 94| 0.00| 30.11| 30.11|30.109| 3.8|358| 8| N| 5| 1| | |07| 30.2 | 29.9*| 30.0 | 29| 94| 0.00| 30.11| 30.10|30.105| 3.0| 9| 7| N| 5| 2| | | | | | | | | | | | | | | | | | | | |08| 32.4 | 29.9 | 31.0 | 29| 94| 0.00| 30.10| 30.10|30.103| 2.8| 2| 6| N| 4| 3| | |09| 36.7 | 32.4 | 34.5 | 31| 87| 0.01| 30.10| 30.09|30.095| 3.1| 8| 11|NNE| 5| 9| | |10| 39.5 | 36.7 | 38.0 | 31| 76| 0.00| 30.09| 30.08|30.088| 2.8| 23| 7| NE| 4| 38| | |11| 42.0 | 39.1 | 40.9 | 32| 70| 0.00| 30.08| 30.06|30.070| 2.2| 18| 7| N| 5| 36| | | | | | | | | | | | | | | | | | | | |12| 43.1 | 41.8 | 42.6 | 31| 65| 0.00| 30.06| 30.05|30.053| 2.7| 24| 8| N| 6| 24| | |13| 45.0*| 43.1 | 44.1 | 31| 60| 0.00| 30.05| 30.03|30.037| 1.0| 43| 5|ENE| 3| 53| | |14| 45.0 | 44.5 | 44.7 | 31| 58| 0.00| 30.04| 30.02|30.026| 1.3| 39| 6|NNE| 4| 25| | |15| 44.9 | 41.8 | 43.8 | 32| 62| 0.00| 30.02| 30.01|30.018| 2.2| 8| 7| N| 5| 3| | | | | | | | | | | | | | | | | | | | |16| 41.8 | 38.4 | 39.9 | 33| 75| 0.00| 30.01| 30.00|30.006| 3.8|352| 7|NNW| 5|344| | |17| 38.4 | 37.6 | 38.2 | 31| 76| 0.00| 30.00| 29.99|29.992| 3.5|354| 7|NNW| 5| 14| | |18| 37.6 | 36.4 | 36.8 | 31| 79| 0.00| 29.99| 29.98|29.979| 4.1|356| 7|NNW| 5|359| | |19| 36.6 | 36.0 | 36.3 | 30| 79| 0.00| 29.98| 29.97|29.970| 3.3|348| 7| N| 4|353| | | | | | | | | | | | | | | | | | | | |20| 36.1 | 33.5 | 34.9 | 29| 81| 0.00| 29.97| 29.97|29.972| 0.9|342| 5|NNW| 3|338| | |21| 34.0 | 32.5 | 33.4 | 29| 84| 0.00| 29.98| 29.97|29.973| 0.5|339| 3|NNW| 2|338| | |22| 32.9 | 32.1 | 32.5 | 28| 85| 0.00| 29.98| 29.97|29.974| 0.5|339| 3|NNW| 2|338| | |23| 33.8 | 32.1 | 32.6 | 28| 83| 0.00| 29.97| 29.96|29.965| 1.6|344| 5| N| 4| 1| | +--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- |Total| For the day: | ---- | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- | 0.01| 30.15| 29.96|30.054| 2.4| 1| 11|NNE| 6| 24| | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | Avg | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - | Hour | Hour | Avg | +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+ | 37.5 | 35.5 | 30|81.7| 1.73| 0 | 23 | ---- | -- | - | 9 | 12 | | +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+ | Total Snow, | | | | Heat 27| | Ice Pellets | Greatest Depth on Ground | Precip Types|Degree+----------+ | 0.0 | of Snow, Ice Pellets or Ice 0 | ......... | Days | Cool 0| +--------------------+-----------------------------------+-------------+------+----------+ NOTES: Data in columns 4, 5, 6, 10, 11, 17 are means via continuous observations for each hour. Units are: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for each hour. Column 12: Resultant wind is calculated by the vector sum of continuous wind observations. Column 17: Sunshine index is measured in Watts/m^2 and is continuously averaged for each hour. Precipitation types: 1 FOG, 2 HEAVY FOG, 3 THUNDER, 4 ICE PELLETS, 5 HAIL, 6 GLAZE, 7 DUSTSTORM, 8 SMOKE/HAZE, 9 BLOWING SNOW. Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 4B, 5, 6, 10, 11, 17 are updated continuously, there by achieving a "true" mean.