To get a sense of how much these sources agree with each other, you can view a comparison of Portland and the stations that contribute to our estimates of its temperature history and climate. KPDX, 69% 6 mi, -20 ft KHIO, 20% 13 mi, 167 ft KUAO, 11% 20 mi, 157 ft © OpenStreetMap contributors Aurora State Airport (KUAO, 11%, 20 mi, south, 157 ft elevation change).Portland-Hillsboro Airport (KHIO, 20%, 13 mi, west, 167 ft elevation change).Portland International Airport (KPDX, 69%, 6 mi, northeast, -20 ft elevation change).The stations contributing to this reconstruction are: The estimated value at Portland is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Portland and a given station. There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Portland.įor each station, the records are corrected for the elevation difference between that station and Portland according to the International Standard Atmosphere, and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. This report illustrates the typical weather in Portland, based on a statistical analysis of historical hourly weather reports and model reconstructions from Januto December 31, 2016. Our beach/pool temperature score is 0 for perceived temperatures below 65☏, rising linearly to 9 for 75☏, to 10 for 82☏, falling linearly to 9 for 90☏, and to 1 for 100☏ or hotter. Our tourism temperature score is 0 for perceived temperatures below 50☏, rising linearly to 9 for 65☏, to 10 for 75☏, falling linearly to 9 for 80☏, and to 1 for 90☏ or hotter. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).įor each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. The coldest month of the year in Portland is December, with an average low of 36☏ and high of 45☏.Īverage High and Low Temperature in Portland The cool season lasts for 3.2 months, from November 15 to February 22, with an average daily high temperature below 52☏. The hottest month of the year in Portland is August, with an average high of 83☏ and low of 57☏. The warm season lasts for 2.9 months, from June 23 to September 19, with an average daily high temperature above 76☏. Click on each chart for more information. ColdcoolcomfortablewarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow82%82%24%24%clearovercastprecipitation: 9.5 inprecipitation: 9.5 in0.4 in0.4 inmuggy: 1%muggy: 1%0%0%drydrytourism score: 7.4tourism score: 7.40.10.1
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |