Sunshine, Sky Cover, and Heavy Fog Averages

		Sky Cover (Sunrise-Sunset)				Heavy Fog (vis 1/4 mile or less)
			Average Number of Days
Month	Avg % of Possible Sunshine	Avg Amt of Sky Cover (oktas)	Clear 0/10 to 3/10	Partly Cloudy 4/10 to 7/10	Cloudy 8/10 to 10/10	Average Number of Days	Greatest Number of Days	Year
January	45%	5.9	5	7	19	4	21	1931
February	54%	5.7	5	7	16	2	13	1985
March	64%	5.3	7	8	16	0	5	1984
April	68%	5.1	7	9	14	0	2	1999+
May	72%	4.7	9	10	12	0	2	1964
June	80%	3.4	14	10	6	0	0	----
July	84%	2.9	15	9	4	0	0	----
August	83%	2.9	14	10	4	0	0	----
September	81%	2.9	17	8	5	0	0	----
October	72%	3.8	14	8	9	0	1	1971+
November	53%	5.0	8	7	15	1	4	1968+
December	40%	5.8	6	7	18	4	14	1980
Annual	66%	4.5	125	101	139	12	37	1931

+ Also occurred in earlier years