Option 1 states that the Mediterranean climatic region is found in the latitude range of 30° to 45° in both the northern and southern hemispheres. This statement is correct, as the Mediterranean region is typically found within these latitudes.

Option 2 states that the Mediterranean climate experiences extreme temperature conditions. This statement is correct, as the region is known for its hot, dry summers and mild, wet winters. The temperature range can be quite extreme in some areas.

Option 3 states that in the Mediterranean climate, rainfall occurs mainly during the summer season. This statement is incorrect, as the Mediterranean climate is characterized by winter rainfall. The summers are typically dry.

Option 4 states that in the Mediterranean climate, rainfall is mainly due to westerlies. This statement is correct, as westerly winds bring moisture from the ocean, resulting in rainfall in the region.

Therefore, the correct answer is option 2, as it correctly states that statements 1 and 4 are correct. Option 3 is incorrect because statement 3 is wrong. There is no alert required in this case.