| Resumo: |
A long-term analysis of temporal trends and frequency analyses for temperatures (1913-2010), precipitation (1909-2010), and wind speed (1954-1996) was conducted on the Moose Jaw climate station in south-central Saskatchewan, Canada. Average annual and springtime temperatures are increasing over time, as are daily mean temperatures during March. Mean daily maximum temperatures are increasing on an annual basis and during the spring period, whereas mean daily minimum temperatures are increasing during February, March, August, and September, as well as on an annual basis and during spring and summer. There are significant positive time trends for growing degree days base 8C (GDD~8~) and 10C (GDD~10~). Rainfall has been increasing during March as well as during winter, and decreasing during October. Significant declines are occurring in the mean of homogeneous wind speeds during April, May, June, July, September, November, and December, as well as on an annual basis and during spring, summer, and autumn. Frequency distributions of monthly, seasonal, and annual climate variables were generated to facilitate more reliable risk analyses for agricultural activities and hydrologic modeling efforts.
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