Table 2. Parameter estimates (with SE) for the linear models with the year of management included as a covariate to assess the temporal trends in all the weather variables for the Kutuharju field reindeer research station, northern Finland.

Weather variables		Estimate	SE	t-value	P	Total change over the study period
Mean temperature (°C)	April	0.066	0.019	3.44	< 0.01	+ 3.1°C
	May	0.046	0.016	2.89	< 0.01	+ 2.1°C
	August	0.028	0.014	2.04	< 0.05	+ 1.3°C
	September	0.051	0.015	3.34	< 0.01	+ 2.3°C
	October	0.047	0.023	2.02	< 0.05	+ 2.2°C
	November	0.09	0.033	2.75	< 0.01	+ 4.1°C
Number of days when mean T° > 0°C	April	0.19	0.058	3.30	< 0.01	+ 8.9 days
Number of days when mean T° > 5°C	April	0.037	0.017	2.16	< 0.05	+ 1.7 days
	May	0.15	0.056	2.71	< 0.01	+ 7.0 days
Number of days when mean T° < -10°C	November	-0.15	0.051	-2.94	< 0.01	- 6.9 days
Precipitation (mm)	May	0.49	0.18	2.72	< 0.01	+ 22.7 mm
Snow depth index (mm)	January	-3.95	1.80	-2.19	< 0.05	- 182 mm
	February	-4.03	1.98	-2.04	< 0.05	- 185 mm
	May	-6.99	2.95	-2.37	< 0.05	- 321 mm
	October	-0.52	0.22	-2.43	< 0.05	- 24.1 mm
	December	-3.76	1.68	-2.24	< 0.05	- 173 mm

Only the significant changes over time (either positive or negative) of the weather variables over different months are presented in this table. The last column indicates the estimated change over time of each climatic variable over the study period, i.e. from 1970 to 2016.