Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out79.181.480.598179.880.37 F
Dew Temp42.150.145.1452.150.347.94 F
Humidity273429373632.6 %
Wind Speed450133 mph
Wind Dir226290North209211Az=309
Pressure25.7425.7825.7925.7125.87+0.24 inHg
Precip 00 0 No Precip
Time PST12:15:3212:15:3112:15:3212:15:3012:15:3012:15:30
KAIT inch Rain & Dew 07-15-2025 12:15:32 No Rain rainint= 1% outdew= 1% indew= 0%
120 inch Rain & Dew 07-15-2025 12:15:31 No Rain rainint= 1% outdew= 0% indew= 0%
40 inch Rain & Dew 07-15-2025 12:15:30 No Rain rainint= 2% outdew= 2% indew= 0%
Crossley Rain & Dew 07-15-2025 12:15:30 No Rain rainint= 0% outdew= 0% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter2141879121911546197012:05:48
In per 0.24 liter235331141 12:02:59

Estimated combined 0.3+0.5um particles weight as of 07-15-2025 12:05:48 is 71 ug/m3
Estimated PM2.5 Air Quality Index is 149 Unhealthy for Sensitive Groups , TSP is 387 on Attention

120 Dome Floor Air Particles 07-15-2025 12:02:59 0.3 um=23533 0.5 um=1141
Outside Air Particles by APF07-15-2025_12:05:48_0.3um=34210_0.5um=1264_0.7um=351_1.0um=184_2.0um=74_3.0um=31_5.0um=12_10.0um=0_sc=7158065_fl=1.0_st=23_er=0_RH=23%_T=89.24F

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 7113 feet above MH & estimated cloud temp is 11 F