Climate Data for Latitude 37.25 Longitude -77.25

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

Locations

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Petersburg National Battlefield
Richmond National Battlefield Park

Averages (English) Metric

TypeUnitsJanFebMarAprMayJunJulAugSepOctNovDecPeriod
Min Temp28.629.436.645.354.763.568.266.760.548.138.130.3106 years
Mean Temp38.640.448.257.666.574.478.376.971.059.749.640.5109 years
Max Temp48.651.459.970.178.285.488.587.181.671.461.150.7109 years
FrostDays31.028.026.012.15.05.02.07.05.01.612.531.01 years
WetDays9.28.19.39.18.18.48.710.75.35.36.37.3109 years
Precipitationin3.43.23.73.33.94.45.44.94.03.32.93.2109 years
Potential Evapotranspirationin1.72.03.34.55.15.65.65.04.03.12.31.6109 years
Yearly Average Temperatures 1901 - 2009 (English) Latitude 37.25 Longitude -77.25
Monthly Mean Temperatures 1901 - 2009 (English) Latitude 37.25 Longitude -77.25
Yearly Total Frost Days 1985 - 2009 Latitude 37.25 Longitude -77.25
Yearly Total Precipitation 1901 - 2009 (English) Latitude 37.25 Longitude -77.25
Yearly Total Wet Days 1901 - 2009 Latitude 37.25 Longitude -77.25
Yearly Total Potential Evapotranspiration 1901 - 2009 (English) Latitude 37.25 Longitude -77.25

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.