Table 1.

Local climate variables at snow petrel breeding sites during the austral summer (November -February) in 1992–2021

	Mean	Standard deviation	Range	Median	Interquartile range
All Sites (n = 247)
Mean seasonal air temperature (°C)	− 8.3	6.7	− 23.8–2.9	− 6.9	− 12.8–− 4.2
Mean seasonal total precipitation (mm)	1.9	1.7	0.1–6.9	1.0	0.7–3.1
Mean seasonal wind speed (m/s)	3.8	2.0	0.5–10.0	3.5	2.5–4.9
Antarctic Continent (n = 150)
Mean seasonal air temperature (°C)	− 12.0	5.5	− 23.8–− 4.1	− 10.8	− 17.2–− 6.7
Mean seasonal total precipitation (mm)	0.8	0.5	0.1–2.6	0.8	0.50–1.0
Mean seasonal wind speed (m/s)	4.6	1.8	1.1–10.0	4.3	3.2–5.7
Antarctic Peninsula (n = 54)
Mean seasonal air temperature (°C)	− 5.4	2.4	− 11.0–− 0.6	− 5.4	− 7.1–− 3.5
Mean seasonal total precipitation (mm)	2.8	1.5	0.8–6.9	2.3	1.8–3.5
Mean seasonal wind speed (m/s)	1.7	1.1	0.5–5.9	1.3	0.9–1.9
South Georgia (n = 43)
Mean seasonal air temperature (°C)	1.0	1.1	− 1.5–2.9	1.1	0.2–1.7
Mean seasonal total precipitation (mm)	4.5	0.7	3.8–6.2	4.4	4.0–4.8
Mean seasonal wind speed (m/s)	3.5	0.8	2.4–4.8	3.7	2.7–4.3