Climate Data for Latitude 51.75 Longitude -0.25

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

Locations

Lea Valley
Wormley Hoddesdonpark Woods

Averages (English) Metric

Type	Units	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Period
Min Temp	F°	33.8	33.7	35.9	39.1	44.0	49.4	53.1	52.7	49.3	44.2	38.0	35.2	106 years
Mean Temp	F°	38.7	39.0	42.7	46.9	53.0	58.3	61.9	61.5	57.3	50.9	43.6	40.0	109 years
Max Temp	F°	43.6	44.4	49.6	54.8	62.1	67.3	70.9	70.4	65.4	57.7	49.3	44.8	109 years
Frost	Days	30.9	28.2	29.4	22.0	10.1	4.2	3.1	2.4	6.4	16.7	23.5	28.9	82 years
Wet	Days	17.8	13.3	14.3	13.4	13.1	10.7	11.1	10.3	10.6	13.8	16.1	15.3	109 years
Precipitation	in	2.4	1.7	1.9	1.9	1.9	2.2	2.1	2.1	2.2	2.6	2.6	2.6	109 years
Potential Evapotranspiration	in	0.5	0.8	1.5	2.2	3.3	3.8	3.9	3.4	2.3	1.3	0.6	0.4	99 years

Yearly Average Temperatures 2010 - 2009 (English) Latitude 51.75 Longitude -0.25

Monthly Mean Temperatures 1901 - 2009 (English) Latitude 51.75 Longitude -0.25

Yearly Total Frost Days 1902 - 2009 Latitude 51.75 Longitude -0.25

Yearly Total Precipitation 1901 - 2009 (English) Latitude 51.75 Longitude -0.25

Yearly Total Wet Days 1901 - 2009 Latitude 51.75 Longitude -0.25

Yearly Total Potential Evapotranspiration 1901 - 2009 (English) Latitude 51.75 Longitude -0.25

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.

Climate Data for Latitude 51.75 Longitude -0.25

Locations

Averages (Metric) English

Averages (English) Metric