Climate Data for Latitude 37.75 Longitude -89.25

Köppen climate classification: Cfa (Climate: warm temperate; Precipitation: fully humid; Temperature: hot summer)
 

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Pomona Nongame Bird Management Area

Averages (English) Metric

TypeUnitsJanFebMarAprMayJunJulAugSepOctNovDecPeriod
Min TempF°23.426.635.945.554.863.066.764.757.645.935.327.2104 years
Mean TempF°33.136.746.657.266.474.878.776.970.159.046.336.5109 years
Max TempF°42.646.857.568.978.086.790.789.182.872.257.345.8108 years
FrostDays31.028.227.66.53.75.35.54.22.39.929.731.06 years
WetDays8.58.010.59.59.26.86.45.86.26.07.07.6109 years
Precipitationin3.02.84.34.24.53.83.53.63.43.13.63.4109 years
Potential Evapotranspirationin1.31.63.04.35.25.86.25.64.33.42.01.4109 years
Yearly Average Temperatures 2010 - 2009 (English) Latitude 37.75 Longitude -89.25
Monthly Mean Temperatures 1901 - 2009 (English) Latitude 37.75 Longitude -89.25
Yearly Total Frost Days 1917 - 2009 Latitude 37.75 Longitude -89.25
Yearly Total Precipitation 1901 - 2009 (English) Latitude 37.75 Longitude -89.25
Yearly Total Wet Days 1901 - 2009 Latitude 37.75 Longitude -89.25
Yearly Total Potential Evapotranspiration 1901 - 2009 (English) Latitude 37.75 Longitude -89.25

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.