Studying Summer Season Drought in Western Russia

Table 4

ENSO phase versus blocking (events/days) for the February–August, the presummer, and summer periods for 1970–2012.

ENSO phase	Feb.–Aug. blocking	Feb.–May blocking	June–Aug. blocking
El Niño	4.8/45	2.7/21	2.1/24
Neutral	4.1/43	2.2/26	1.9/17
La Niña	4.8	2.6/18	2.220