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APPENDIX II 
INDEX AND PERIOD OF RECORD POR METEOROLOGICAL STATIONS IN ONTARIO 
JULY 1958 
This appendix contains listings of all Ontario stations that make observations of the 
following meteorological elements: 
1. Wind 3. Temperature 
2. Sunshine 4. Precipitation 
This index should be used as a supplement to the information on Ontario stations given 
in tables 1 and 2. There are many more stations reported here than are listed for Ontario in 
the two tables, because the tables were prepared to show only stations within the Great Lakes 
Drainage Basin. In this regard, the symbols OS, DB, DB*, and Qut are used in the Notes column 
of the Appendix. These indicate into which classification the stations should be placed accord- 
ing to whether they are, respectfully, onshore stations, stations greater than two miles inland 
frem the shore but within the Drainage Basin, within a few miles of the Drainage Basin boundary 
but geographically outside, or completely outside the Basin. 
The parenthetical suffixes following the station listing indicate the type of observa- 
tional facility, A for airport, R for radio range, etc. The notation A under the Active 1958 
column heading indicates the station sc marked was in operation at the time the index was com- 
piled. 
Explanatory prefaces to each of the sections of the Index are included as prepared by 
the Climatological Section of the Canadian Meteorological Division. Grateful acknowledgment is 
herewith tendered to that office for its cooperation and assistance. 
Index of Wind Reporting Stations in the 
Province of Ontario 
1. Stations: This index contains a list of all the stations in the Province of Ontario which 
have reported autographic wind data since January 1922. Since January 1955, stations without 
autographic wind equipment, but which record hourly observations of wind as part of the aviation 
weather reports, have been included. Most of the stations will have fairly continous homogene- 
ous records over the period of years involved, but at some the position of the anemometer may 
have been changed one or more times. For practical purposes, we have considered each station 
record as homogeneous. 
2. Iocation: Precise location of each station is given in the January issues of the Monthly 
Record. In the list that follows, the county in which each observation station is located has 
been listed. Where stations have had different names, or where the period of record does not 
extend over the whole year, such facts are noted at the right hand side of the index. 
3. Period of Record: The first month where data are available in the Meteorological Headquar- 
ters abstracts is shown as the date on which the station was opened. Similarly, the last month 
of record from the abstract is shown as the closed date. Stations in operation in July 1958 
have been so marked in the proper column. When a station has appreciable break in the records, 
this fact has been noted. 
4. Data: Percentage frequencies of wind direction and mean wind speed are shown for most of 
these stations in Climatic Summaries Volume II. From 1922 to 1954 the data have been abstracted 
from anemograms obtained from anemometers of the Robinson cup type. At the beginning of the 
period the four-cup anemometer was used, but during the early 1930's these were replaced by the 
three-cup anemometer. The anemograms record the number of miles of wind in each hour along with 
prevailing direction. Since January 1955, at those stations where hourly observations of the 
wind speed and direction are taken and recorded, these data have been processed instead of anem- 
ogram data. For practical purposes, data from the two sources should be considered as being the 
