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Sunnyvale - A Future Bright with Possibilities

Current Weather Forecast for Sunnyvale, TexasEconomic Profile:  Climate

The National Climatic Data Center describes the general Dallas/Fort Worth climate as humid subtropical with hot summers.  The weather is continental, characterized by a wide annual temperature range.

Precipitation ranges from less than 20 inches to more than 50 inches.  Rainfall occurs throughout the year with periods of rainy weather lasting only a day or two followed by several days of fair skies.  Hail falls about two or three days a year.  Thunderstorm activity with occasional heavy rainfall occur most frequently in the spring.

Winters are mild but northers occur and often are accompanied by sudden drops in temperatures.  Snowfall is rare.

  • Average last occurence of 32 degrees or below is mid-March.
  • Average first occurrence of 32 degrees or below is in late November.
  • January mean maximum is 30 degrees

Summer has the highest temperatures with low humidity.  Hot spells are broken into 3 to 5 day periods with thunderstorm activity.  Low temperature exceeds 80 degrees only a few nights each summer.  Daytime temperatures frequently exceed 100 degrees.  July mean maximum is 94 degrees.  Growing season is 226 days.

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