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Monthly Barometric Pressure Summary (inHg)
Data last updated 05/17/12 05:55 AM.
DetailSummary

Barometric Pressure
DateJanFebMarAprMayJunJulAugSepOctNovDecYear
201230.05 0.01 inHg less than the January average.29.94 0.06 inHg less than the February average.29.90 0.03 inHg less than the March average.29.83 0.02 inHg less than the April average.29.74* 0.03 inHg less than the May average.---------------------29.91* 0.04 inHg more than the yearly average.
201130.04 0.02 inHg less than the January average.30.01 0.01 inHg more than the February average.29.91 0.02 inHg less than the March average.29.82 0.03 inHg less than the April average.29.78 0.01 inHg more than the May average.29.68 0.04 inHg less than the June average.29.68 0.05 inHg less than the July average.29.68 0.06 inHg less than the August average.29.76  29.83 0.03 inHg less than the October average.29.97 0.01 inHg less than the November average.30.06 0.01 inHg more than the December average.29.85 0.02 inHg less than the yearly average.
201029.94 0.12 inHg less than the January average.29.90 0.1 inHg less than the February average.29.92 0.01 inHg less than the March average.29.82 0.03 inHg less than the April average.29.79 0.02 inHg more than the May average.29.70 0.02 inHg less than the June average.29.68 0.05 inHg less than the July average.29.68 0.06 inHg less than the August average.29.70 0.06 inHg less than the September average.29.89 0.03 inHg more than the October average.29.99 0.01 inHg more than the November average.29.95 0.1 inHg less than the December average.29.83 0.04 inHg less than the yearly average.
200930.09 0.03 inHg more than the January average.30.01 0.01 inHg more than the February average.29.90 0.03 inHg less than the March average.29.85  29.73 0.04 inHg less than the May average.29.71 0.01 inHg less than the June average.29.72 0.01 inHg less than the July average.29.75 0.01 inHg more than the August average.29.75 0.01 inHg less than the September average.29.81 0.05 inHg less than the October average.29.92 0.06 inHg less than the November average.29.98 0.07 inHg less than the December average.29.85 0.02 inHg less than the yearly average.
200830.06  30.00*  29.95 0.02 inHg more than the March average.29.86 0.01 inHg more than the April average.29.76 0.01 inHg less than the May average.29.71 0.01 inHg less than the June average.29.72 0.01 inHg less than the July average.29.70 0.04 inHg less than the August average.29.74 0.02 inHg less than the September average.29.90 0.04 inHg more than the October average.29.98  30.02 0.03 inHg less than the December average.29.87*  
200730.09 0.03 inHg more than the January average.30.01 0.01 inHg more than the February average.29.96 0.03 inHg more than the March average.29.84 0.01 inHg less than the April average.29.78 0.01 inHg more than the May average.29.74 0.02 inHg more than the June average.29.75 0.02 inHg more than the July average.29.73 0.01 inHg less than the August average.29.77 0.01 inHg more than the September average.29.89 0.03 inHg more than the October average.29.94 0.04 inHg less than the November average.30.10 0.05 inHg more than the December average.29.88 0.01 inHg more than the yearly average.
200630.10 0.04 inHg more than the January average.30.03 0.03 inHg more than the February average.29.94 0.01 inHg more than the March average.29.89 0.04 inHg more than the April average.29.78 0.01 inHg more than the May average.29.76 0.04 inHg more than the June average.29.76 0.03 inHg more than the July average.29.77 0.03 inHg more than the August average.29.80 0.04 inHg more than the September average.29.86  29.97 0.01 inHg less than the November average.30.12 0.07 inHg more than the December average.29.90 0.03 inHg more than the yearly average.
200530.06*  30.00  29.97 0.04 inHg more than the March average.29.88* 0.03 inHg more than the April average.29.78 0.01 inHg more than the May average.29.71* 0.01 inHg less than the June average.29.74* 0.01 inHg more than the July average.29.79 0.05 inHg more than the August average.29.82 0.06 inHg more than the September average.29.88 0.02 inHg more than the October average.30.02 0.04 inHg more than the November average.30.08 0.03 inHg more than the December average.29.90* 0.03 inHg more than the yearly average.
200430.08 0.02 inHg more than the January average.30.07* 0.07 inHg more than the February average.29.95 0.02 inHg more than the March average.29.90 0.05 inHg more than the April average.29.83* 0.06 inHg more than the May average.29.77* 0.05 inHg more than the June average.29.78 0.05 inHg more than the July average.29.80 0.06 inHg more than the August average.29.78 0.02 inHg more than the September average.29.84 0.02 inHg less than the October average.30.05 0.07 inHg more than the November average.30.09 0.04 inHg more than the December average.29.91* 0.04 inHg more than the yearly average.
 
High30.10 30.07 29.97 29.90 29.83 29.77 29.78 29.80 29.82 29.90 30.05 30.12 30.12
Avg30.06 30.00 29.93 29.85 29.77 29.72 29.73 29.74 29.76 29.86 29.98 30.05 29.87
Low29.94 29.90 29.90 29.82 29.73 29.68 29.68 29.68 29.70 29.81 29.92 29.95 29.68
 
Color Key
< 29.72 29.72 - 29.75 29.75 - 29.78 29.78 - 29.82 29.82 - 29.86 29.86 - 29.90 29.90 - 29.94 29.94 - 29.98 29.98 - 30.02 30.02 - 30.06 30.06 - 30.09 30.09 - 30.1230.12>
* denotes incomplete data for the month/year.