Mt Hamilton Weather

07-15-2026	DavisCop	Davis120	VaisaAPF	Davis40	DavisCro	Average
Temp Out	78	79.4	86.9	79.4	84.4	81.62 F
Dew Temp	34.8	44.2	39.56	45.9	45.6	42.01 F
Humidity	21	29	19	31	26	25.2 %
Wind Speed	11	21	5.8	10	4	10.4 mph
Wind Dir	279	359	247.0	360	256	Az=298
Pressure	25.8	25.85	25.87	25.79	25.95	+0.32 inHg
Precip		0	0	0		No Precip
Time PST	12:58:49	12:58:50	12:58:51	12:58:50	12:58:49	12:58:49

KAIT Rain & Dew 07-15-2026 12:58:46 No Rain rainint= 1% outdew= 1% indew= 0%
120 inch Rain & Dew 07-15-2026 12:58:47 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 07-15-2026 12:58:50 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 07-15-2026 12:58:45 No Rain rainint= 0% outdew= 0% indew= 0%

Particles um	0.3	0.5	0.7	1.0	2.0	3.0	5.0	10.0	Time
Out per 0.24 liter	4999	948	448	266	94	20	8	1	12:50:12
In per 0.24 liter	30731	481							12:35:53

Estimated combined 0.3+0.5um particles weight as of 07-15-2026 12:50:12 is 26 ug/m3
Estimated PM2.5 Air Quality Index is 305 Hazardous , TSP is 644 on Alert

Out Particle Warning 0.24/L 0.3:21400 0.5:1750 0.7:650 1.0:400 2.0:130 3.0:60 5.0:18 10.0:2
Out Particle Closure 0.24/L 0.3:30600 0.5:2500 0.7:2000 1.0:1200 2.0:400 3.0:180 5.0:60 10.0:3
In Particle Warning 0.24/L 0.3:12000 0.5:980 In Particle Closure 0.24/L 0.3:17000 0.5:1400
Davis40 precip = rain rate * 0.01"/Hr Davis120 precip = 120" teles dew sensor 0=dry 100=wet closure~>15
Avg pressure = deviation 0.01 X in Hg from MH normal - VaisaAPF precip 0=norain 1=rain
If clouds visible overhead: estimated cloud base is at 8000 feet above MH & estimated cloud temp is 0 F