Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out58.659.966.5659.563.161.53 F
Dew Temp26.231.93235.632.531.63 F
Humidity293527413232.79 %
Wind Speed10142.91027.8 mph
Wind Dir261333299.0344267Az=301
Pressure25.7925.8325.8525.7726.07+0.3 inHg
Precip 00 0 No Precip
Time PST14:10:5014:10:5114:10:5114:10:4914:10:4814:10:49
KAIT inch Rain & Dew 04-07-2026 14:10:50 No Rain rainint= 3% outdew= 1% indew= 0%
120 inch Rain & Dew 04-07-2026 14:10:50 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 04-07-2026 14:10:49 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 04-07-2026 14:10:48 No Rain rainint= 0% outdew= 3% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter15154962501353171014:07:01
In per 0.24 liter626138 13:42:15

Estimated combined 0.3+0.5um particles weight as of 04-07-2026 14:07:01 is 10 ug/m3
Estimated PM2.5 Air Quality Index is 100 Moderate , TSP is 166 Above Secondary Standard

120 Dome Floor Air Particles 04-07-2026 13:42:15 0.3 um=626 0.5 um=138
Outside Air Particles by APF04-07-2026_14:07:01_0.3um=2420_0.5um=793_0.7um=400_1.0um=216_2.0um=50_3.0um=12_5.0um=3_10.0um=0_sc=21067964_fl=1.0_st=23_er=0_RH=23%_T=72.32F

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 6363 feet above MH & estimated cloud temp is -3 F