Climate Data for Latitude 48.25 Longitude -123.25

Köppen climate classification: Csb (Climate: warm temperate; Precipitation: summer dry; Temperature: warm summer)
 

Locations

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Chain Islets and Great Chain Islet
San Juan Island National Historical Park

Averages (English) Metric

TypeUnitsJanFebMarAprMayJunJulAugSepOctNovDecPeriod
Min TempF°31.732.634.537.642.747.651.151.447.441.736.833.4105 years
Mean TempF°36.739.042.046.452.057.161.461.857.449.842.538.0109 years
Max TempF°41.845.449.655.261.566.771.872.367.658.148.442.8108 years
FrostDays31.028.230.921.28.53.54.47.810.512.528.431.0107 years
WetDays19.216.117.013.612.610.06.36.89.113.919.320.4109 years
Precipitationin11.610.48.65.44.33.31.82.13.79.414.412.7108 years
Yearly Average Temperatures 2010 - 2009 (English) Latitude 48.25 Longitude -123.25
Monthly Mean Temperatures 1901 - 2009 (English) Latitude 48.25 Longitude -123.25
Yearly Total Frost Days 1901 - 2009 Latitude 48.25 Longitude -123.25
Yearly Total Precipitation 1901 - 2009 (English) Latitude 48.25 Longitude -123.25
Yearly Total Wet Days 1901 - 2009 Latitude 48.25 Longitude -123.25

Climate data provided by CRU TS 3.1 - University of East Anglia Climate Research Unit (CRU). [Phil Jones, Ian Harris]. CRU Time Series (TS) high resolution gridded datasets, [Internet]. NCAS British Atmospheric Data Centre, 2008, Accessed: 28-July-2011
Charting software provided by pChart - a PHP class to build charts.
Köppen climate classification provided by Kottek, M., J. Grieser, C. Beck, B. Rudolf, and F. Rubel, 2006: World Map of Köppen-Geiger Climate Classification updated. Meteorol. Z., 15, 259-263
The calculation method for the potential evapotranspiration is the FAO grass reference equation (Ekstrom et al., 2007, which is based on Allen et al., 1994). It is a variant of the Penman Monteith method using TMP, TMN, TMX, VAP, CLD.