Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out70.474.473.2274.973.573.28 F
Dew Temp20.435.130.5638.539.132.73 F
Humidity152421272923.2 %
Wind Speed540243 mph
Wind Dir157201North103247Az=89
Pressure25.8125.8425.8625.7826.02+0.31 inHg
Precip 00 0 No Precip
Time PST11:45:0211:45:0311:45:0411:45:0311:45:0211:45:02
KAIT inch Rain & Dew 06-15-2025 11:45:02 No Rain rainint= 1% outdew= 0% indew= 0%
120 inch Rain & Dew 06-15-2025 11:45:03 No Rain rainint= 1% outdew= 2% indew= 0%
40 inch Rain & Dew 06-15-2025 11:45:03 No Rain rainint= 2% outdew= 1% indew= 0%
Crossley Rain & Dew 06-15-2025 11:44:59 No Rain rainint= 0% outdew= 0% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter69951526719379902512111:44:42
In per 0.24 liter1722244 11:21:56

Estimated combined 0.3+0.5um particles weight as of 06-15-2025 11:44:42 is 40 ug/m3
Estimated PM2.5 Air Quality Index is 292 Very Unhealthy , TSP is 736 on Alert

120 Dome Floor Air Particles 06-15-2025 11:21:56 0.3 um=1722 0.5 um=244
Outside Air Particles by APF06-15-2025_11:44:42_0.3um=10056_0.5um=2195_0.7um=1035_1.0um=546_2.0um=130_3.0um=37_5.0um=18_10.0um=2_sc=4565261_fl=0.9_st=23_er=0_RH=19%_T=78.62F

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 8931 feet above MH & estimated cloud temp is -14 F