Average Number Of Days (1899 to Present)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Clear	5.6	6.1	6.0	5.2	5.1	4.8	4.7	5.7	6.7	8.0	5.4	5.6	Clear
P Cloudy	8.8	7.7	8.9	8.7	9.6	10.4	11.5	10.7	9.7	8.9	8.3	8.5	P Cloudy
Cloudy	16.5	14.5	16.1	16.2	16.3	14.8	14.8	14.6	13.6	14.0	16.3	17.0	Cloudy
Total Fog	11.7	10.2	13.1	12.3	14.7	15.6	15.9	15.7	14.5	13.6	12.7	12.2	Total Fog
Heavy Fog	2.0	2.1	2.4	2.1	3.0	3.9	3.9	3.6	2.8	3.0	2.0	2.0	Heavy Fog
Haze	2.1	1.7	2.1	2.9	5.6	11.3	15.3	14.2	7.9	5.1	3.5	1.9	Haze
Thunder	0.2	0.3	0.8	1.4	2.7	3.5	4.0	3.7	1.8	1.0	0.8	0.2	Thunder
Ice Pellets	1.8	1.6	1.6	0.5	0.0	0.0	0.0	0.0	0.0	0.0	0.4	1.5	Ice Pellets
Glaze	1.7	1.2	1.3	0.3	0.0	0.0	0.0	0.0	0.0	0.0	0.2	1.3	Glaze
Norm	1.3	1.4	2.2	2.3	2.5	2.2	3.0	2.4	1.9	1.8	1.4	1.5	Norm
>0°	15.2	14.3	14.9	13.7	14.4	14.7	14.7	14.7	13.7	14.1	13.8	15.3	>0°
>+5°	10.1	8.8	7.8	6.2	6.1	5.5	4.6	5.4	6.4	7.4	7.6	9.5	>+5°
>+10°	4.7	3.4	2.3	1.7	1.3	0.9	0.4	0.5	1.1	1.8	2.5	3.9	>+10°
<0°	14.4	12.6	14.0	14.0	14.1	13.1	13.3	14.0	14.2	15.2	14.8	14.2	<0°
<-5°	9.5	7.7	7.4	6.1	5.7	5.1	3.9	5.3	6.5	8.4	8.6	9.0	<-5°
<-10°	4.7	3.6	2.5	0.8	0.6	0.8	0.2	0.5	1.0	2.2	2.6	4.2	<-10°
Max Temp ≥90	0.0	0.0	0.0	0.0	0.0	0.3	0.9	0.6	0.1	0.0	0.0	0.0	Max Temp ≥90
Max Temp ≥80	0.0	0.0	0.0	0.1	1.1	5.6	14.1	12.6	3.4	0.3	0.0	0.0	Max Temp ≥80
Max Temp ≥70	0.0	0.0	0.1	1.3	7.6	22.1	30.0	29.3	19.3	4.7	0.2	0.0	Max Temp ≥70
Max Temp ≥60	0.0	0.1	1.2	7.2	23.4	29.2	31.0	31.0	29.2	19.8	4.9	0.3	Max Temp ≥60
Max Temp ≥50	3.1	2.2	8.7	21.9	30.4	30.0	31.0	31.0	30.0	29.7	17.7	5.7	Max Temp ≥50
Max Temp <50	27.7	25.8	22.3	8.1	0.6	0.0	0.0	0.0	0.0	1.3	12.3	25.3	Max Temp <50
Max Temp <40	18.5	16.6	8.0	0.5	0.0	0.0	0.0	0.0	0.0	0.0	2.2	13.4	Max Temp <40
Max Temp <30	6.3	4.7	0.9	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	3.2	Max Temp <30
Max Temp <20	1.0	0.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	Max Temp <20
Max Temp ≤32	9.1	7.2	1.8	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	5.4	Max Temp ≤32
Min Temp ≥70	0.0	0.0	0.0	0.0	0.0	0.1	2.1	2.8	0.5	0.0	0.0	0.0	Min Temp ≥70
Min Temp ≥60	0.0	0.0	0.0	0.0	0.3	9.3	24.9	23.0	10.3	1.2	0.0	0.0	Min Temp ≥60
Min Temp ≥50	0.0	0.0	0.0	0.5	11.0	27.6	31.0	30.8	25.1	11.2	2.0	0.1	Min Temp ≥50
Min Temp <50	30.7	28.0	31.0	29.5	20.0	2.4	0.0	0.2	4.9	19.8	28.0	30.9	Min Temp <50
Min Temp <40	29.8	27.6	28.5	17.1	1.8	0.0	0.0	0.0	0.2	6.0	19.0	28.7	Min Temp <40
Min Temp <30	22.3	20.7	13.1	1.4	0.0	0.0	0.0	0.0	0.0	0.3	4.8	18.2	Min Temp <30
Min Temp <20	11.2	9.6	2.8	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.4	6.4	Min Temp <20
Min Temp <10	3.3	2.1	0.2	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.1	Min Temp <10
Min Temp ≤0	0.4	0.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	Min Temp ≤0
Min Temp ≤32	25.3	23.7	18.7	4.5	0.0	0.0	0.0	0.0	0.0	0.9	8.6	22.2	Min Temp ≤32
Max Dew ≥70	0.0	0.0	0.0	0.0	0.1	2.5	10.3	10.4	3.6	0.2	0.0	0.0	Max Dew ≥70
Max Dew ≥60	0.0	0.0	0.0	0.2	4.4	18.1	27.3	26.5	16.8	6.3	1.2	0.0	Max Dew ≥60
Max Dew ≥50	1.7	0.8	1.6	5.8	18.1	28.2	30.9	30.7	26.9	17.3	8.8	3.2	Max Dew ≥50
Max Dew ≥40	5.8	4.6	8.3	16.8	28.2	30.0	31.0	31.0	29.7	26.1	17.3	8.8	Max Dew ≥40
Max Dew <40	25.2	23.6	22.7	13.1	2.8	0.0	0.0	0.0	0.3	4.9	12.7	22.2	Max Dew <40
Max Dew <30	17.0	15.3	11.1	3.1	0.3	0.0	0.0	0.0	0.0	0.7	4.8	12.7	Max Dew <30
Max Dew <20	8.5	7.3	3.7	0.5	0.0	0.0	0.0	0.0	0.0	0.0	0.7	5.2	Max Dew <20
Max Dew <10	3.6	2.5	0.8	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.4	Max Dew <10
Max Dew ≤0	1.0	0.7	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3	Max Dew ≤0
Max Dew ≤32	19.9	18.5	14.7	5.5	0.4	0.0	0.0	0.0	0.1	1.3	7.4	15.8	Max Dew ≤32
Min Dew ≥70	0.0	0.0	0.0	0.0	0.0	0.0	0.5	1.0	0.2	0.0	0.0	0.0	Min Dew ≥70
Min Dew ≥60	0.0	0.0	0.0	0.0	0.1	3.7	13.6	13.4	5.0	0.5	0.0	0.0	Min Dew ≥60
Min Dew ≥50	0.0	0.0	0.0	0.1	4.6	18.1	27.3	26.5	16.0	5.1	1.1	0.1	Min Dew ≥50
Min Dew ≥40	0.4	0.6	0.8	3.9	16.7	27.6	30.3	30.2	26.0	14.2	5.2	0.9	Min Dew ≥40
Min Dew <30	28.3	25.8	25.1	16.2	4.1	0.1	0.0	0.0	0.4	6.7	17.6	26.5	Min Dew <30
Min Dew <20	21.8	19.6	15.2	6.2	0.7	0.0	0.0	0.0	0.0	0.9	6.8	17.8	Min Dew <20
Min Dew <10	14.1	11.8	6.8	1.2	0.1	0.0	0.0	0.0	0.0	0.1	1.3	9.1	Min Dew <10
Min Dew ≤0	7.0	6.1	2.3	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.1	3.2	Min Dew ≤0
Min Dew ≤-10	2.3	1.4	0.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.7	Min Dew ≤-10
Min Dew ≤32	29.3	26.8	27.7	19.6	6.2	0.3	0.0	0.0	0.6	9.5	20.1	28.2	Min Dew ≤32
Liq None	19.6	18.7	19.6	18.7	19.5	20.0	21.7	21.5	21.6	22.4	19.6	20.0	Liq None
Liq Trace	2.9	2.6	2.8	2.7	2.8	2.2	2.4	2.1	2.1	2.2	2.7	2.9	Liq Trace
Liq ≥ .01	11.1	9.5	11.4	11.3	11.5	10.0	9.3	9.5	8.5	8.6	10.4	11.0	Liq ≥ .01
Liq ≥ .10	7.4	6.3	7.5	6.8	7.0	5.9	5.7	6.0	5.5	5.8	6.6	7.3	Liq ≥ .10
Liq ≥ .20	5.5	4.7	5.8	5.3	5.0	4.3	3.9	4.4	4.0	4.3	5.2	5.6	Liq ≥ .20
Liq ≥ .30	4.3	3.9	4.5	4.2	3.9	3.2	3.1	3.5	3.2	3.4	4.2	4.4	Liq ≥ .30
Liq ≥ .40	3.4	3.2	3.6	3.4	2.9	2.4	2.4	2.9	2.7	2.8	3.5	3.5	Liq ≥ .40
Liq ≥ .50	2.8	2.5	3.0	2.7	2.3	1.9	1.9	2.4	2.1	2.4	2.9	2.9	Liq ≥ .50
Liq ≥ .75	1.7	1.5	1.8	1.7	1.3	1.1	1.2	1.5	1.4	1.6	1.8	1.7	Liq ≥ .75
Liq ≥ 1.00	1.1	0.9	1.2	1.2	0.7	0.7	0.7	1.1	1.0	1.0	1.2	1.1	Liq ≥ 1.00
Sno None	25.9	23.6	27.7	29.4	31.0	30.0	31.0	31.0	30.0	31.0	29.4	27.6	Sno None
Sno Trace	2.5	2.3	1.6	0.5	0.0					0.1	0.8	2.1	Sno Trace
Sno ≥ 0.1	4.8	4.4	3.3	0.6	0.0					0.0	0.6	3.4	Sno ≥ 0.1
Sno ≥ 1	2.6	2.4	1.7	0.3	0.0					0.0	0.3	1.8	Sno ≥ 1
Sno ≥ 2	1.5	1.6	1.0	0.2	0.0					0.0	0.2	1.0	Sno ≥ 2
Sno ≥ 3	1.0	1.2	0.7	0.1	0.0					0.0	0.1	0.7	Sno ≥ 3
Sno ≥ 4	0.3	0.8	0.5	0.0	0.0					0.0	0.0	0.4	Sno ≥ 4
Sno ≥ 5	0.4	0.5	0.3	0.0	0.0					0.0	0.0	0.2	Sno ≥ 5
Sno ≥ 6	0.3	0.3	0.2	0.0	0.0					0.0	0.0	0.1	Sno ≥ 6
Sno ≥ 9	0.1	0.2	0.0	0.0	0.0					0.0	0.0	0.0	Sno ≥ 9
Wind  <3	2.0	1.7	0.9	0.8	2.0	3.3	3.9	4.4	3.7	3.4	2.5	2.6	Wind  <3
Wind  <5	7.4	6.4	6.3	6.8	10.5	13.0	15.8	15.7	13.7	12.0	9.0	8.4	Wind  <5
Wind <10	20.0	18.2	20.1	22.1	25.4	26.8	29.2	28.7	26.7	25.0	21.3	21.2	Wind <10
Wind ≥10	11.0	10.0	10.9	7.9	5.6	3.2	1.8	2.3	3.3	6.0	8.7	9.8	Wind ≥10
Wind ≥13	4.7	3.9	4.5	2.8	1.4	0.6	0.2	0.3	0.8	1.7	3.3	4.2	Wind ≥13
Gust  <20	8.0	6.9	6.5	6.3	9.5	12.7	14.4	15.6	13.8	11.7	9.4	8.6	Gust  <20
Gust  <30	20.4	18.5	20.3	21.9	25.7	27.1	29.2	29.0	26.6	25.3	21.5	21.1	Gust  <30
Gust  ≥30	10.6	9.8	10.7	8.1	5.3	2.9	1.8	2.0	3.4	5.7	8.5	9.9	Gust  ≥30
Gust  ≥40	2.9	2.5	2.8	1.8	0.9	0.2	0.1	0.2	0.4	0.9	2.0	2.9	Gust  ≥40
Gust  ≥50	0.7	0.4	0.5	0.2	0.1	0.0	0.0	0.1	0.1	0.1	0.4	0.5	Gust  ≥50
WC ≤32	15.6	14.5	14.9	8.3	0.0					0.0	9.7	15.0	WC ≤32
WC <10	7.2	5.8	2.6	0.1	0.0					0.0	0.4	4.4	WC <10
WC ≤0	3.8	2.7	0.8	0.0	0.0					0.0	0.0	1.6	WC ≤0
Sno D=T	3.3	3.1	2.6	0.5	0.0					0.0	0.7	3.1	Sno D=T
Sno D>1"	9.3	9.6	4.7	0.5	0.0					0.0	0.5	5.1	Sno D>1"
THI ≥80						5.6	15.0	13.7	3.8				THI ≥80
THI ≥85						2.6	8.2	7.3	1.5				THI ≥85
THI ≥90						0.9	3.1	2.6	0.5				THI ≥90
THI ≥100						0.0	0.3	0.2	0.0				THI ≥100
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Updated:   March 1, 2008
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