The warm and wet start to the year has created the perfect breeding ground for mosquitoes in Colorado, but experts say that won’t necessarily translate into a corresponding explosion in cases of the insect-borne West Nile virus in 2023. So far this year, Denver has seen 13.67 inches of precipitation from rain and snow — more than double the city’s total this time in 2022, according to meteorologist Ayesha Wilkinson at the National Weather Service in Boulder.