Much of New South Wales, including Sydney has been gripped by the coldest morning in three years, record cold in some places. Most of the state was about five to 10 degrees colder than the June average. The state's coldest place was Glen Innes on the Northern Tablelands where it dropped to minus 10 degrees. The coldest spot across Sydney this morning was Richmond which recorded a temperature of minus 3.8 degrees, the coldest it's been in five years. This sort of cold is not unusual for July or August but for June it's much more rare. Sydney city got as cold as 4.7 degrees at about sunrise, the coldest in three years and the coldest June morning in 27 years. In the northwest of the state Bourke and Walgett both chilled to minus four degrees and Lightning Ridge minus two, the coldest it's been in June in more than a decade. Most of NSW will be similarly cold on Wednesday morning with further severe frost expected. From Thursday, mornings will still be cold but become progressively warmer as the coldest air dissipates and cloud and wind increase. The crisp clear weather will turn cloudy and rainy in the north late in the week as moisture filters in from the tropics.