July 2008 Weather Summary

[CanisLupusArctos]

Black Cat Island Weather Station
Weather data summary for July 2008
Norms are for Concord and are given in parenthesis

Temperature
Overall: 70.4 (69.5)
Average high: 78.8 (82.4)
Average low: 62.4 (56.5)

highest: 87 on the 8th
lowest: 55 on the 5th

Precipitation
Total: 3.50 inches (3.23 inches)
max calendar day: 1.35 on the 24th
days with rainfall: 13

Weather
Average wind speed: 3 mph
Dominant direction: Southeast
Peak wind gust: 60 mph from the SE on the 2nd
Highest daily wind speed avg: 9 mph (directions variable) on the 13th, 23rd, and 24th

Days with fog: 10
Days with thunder: 6

Notes:
Overnight low temps appear to bear the responsibility for raising the overall temp average for the month. This is most likely caused by the month's average relative humidity of 80 percent. Humidity and cloud cover prevent nighttime temperatures from falling much.

EF-2 tornadic thunderstorm generated damaging lake swells at this location while crossing the SE end of the lake on SSW to NNE course on the 24th. Peak wind was from the south at 44 mph.

There were 3 days with winds of at least 40 mph.