The Cooperative Station Network is part of the weather monitoring activities of the National Weather Service. Observers who participate in this programme record such measurements as daily maximum and minimum temperatures, amounts and duration of various hydrometeors (rain, snow, sleet etc.), weather conditions (e.g. fog, thunder, hail), river stages if applicable and other supporting remarks. At the month's end, these records are forwarded to the National Climatic Data Center where they are quality controlled and archived. Of the approximately 161 cooperative stations on record for Vermont, 71 are currently active. Of the latter, 36 are located in the northeastern climatic division, 17 in the western division and 24 in the southeastern. Co-op stations are identified by a six digit identification number. The map below can also be used to access information on a given station by clicking on the relevant circle.
Some stations like Burlington have had an interesting history. This station began as an Army Signal Corps (ASC) location at which records were taken from April 1st, 1873 till December 31st, 1883. The station was then moved for the record period March 1st 1906 to December 31, 1943. The readings began at the Burlington International Airport on December 1st, 1932 and continue to the present.