December 1999 Climatological Report
 

Temperature
Highest Maximum: 81°F - December 13
Lowest Minimum: 39°F - December 26
Average Maximum: 70°F
Average Minimum: 53°F
Mean: 62°F

Relative Humidity
Highest Observed: 100%
Lowest Observed: 31% - December 26
Average High Humidity: 96%
Average Low Humidity: 55%
Average Relative Humidity: 75%

Winds
Peak Wind Speed/Direction: 38 mph/NW - December 25

Visibility/Cloud Ceiling
Lowest Visibility: 1/16 mile - December 22
Lowest Ceiling: 200 feet - December 11, 19

Precipitation
Total for the Month: 2.41 inches
Precipitation Days Normally Expected: 10
Precipitation Days Observed: 4

Thunderstorms
Thunderstorm Days Normally Expected: 1
Thunderstorm Days Observed: 0


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