Table 1. Summary of all the weather variables used to analyze the influence of climatic variability on both the calving date and calving synchrony of a semi-domesticated reindeer population for the study area of the Kutuharju field reindeer research station in Kaamanen, northern Finland (69°N, 27°E).

	Local weather variables
Month	Temperature				Precipitation	Snow cover
	Mean T°(°C)	Number of days when mean T° >		Number of days when mean T° <	Sum (mm)	Snow depth index—SDI (mm)
		0°C	5°C	-10°C
January	X	X			X	X	X
February	X	X		X	X	X
March	X	X		X	X	X
April	X	X	X	X	X	X
May	X	X	X		X	X
June	X		X		X
July	X				X
August	X		X		X
September	X	X	X		X
October	X	X	X	X	X	X
November	X	X	X	X	X	X
December	X	X		X	X	X
References	[33,45]	[48]	[48]		[49]	[28,33–35,50]

The availability of each weather variable depending on the month is indicated by an “X”. The significant influence of each weather variable on parturition date for different ungulate species is referred in the last line.