Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out47.8 48.247.84948.2 F
Dew Temp46.3 3247.847.843.47 F
Humidity95 96.991009696.99 %
Wind Speed12 18.1101213.0 mph
Wind Dir101 155.036086Az=91
Pressure25.6725.6925.7125.6325.99+0.16 inHg
Precip 00 0 Dew?
Time PST22:31:2222:31:2322:31:2322:31:2322:31:2222:31:23
KAIT inch Rain & Dew 11-12-2025 22:31:22 No Rain rainint= 3% outdew= 88% indew= 1%
120 inch Rain & Dew 11-12-2025 22:31:23 No Rain rainint= 0% outdew= 93% indew= 0%
40 inch Rain & Dew 11-12-2025 22:31:23 Raining! rainint= 5% outdew= 96% indew= 0%
Crossley Rain & Dew 11-12-2025 22:31:18 No Rain rainint= 1% outdew= 93% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter1583873746776639350471634283022:21:39
In per 0.24 liter2660278 22:24:40

Estimated combined 0.3+0.5um particles weight as of 11-12-2025 22:21:39 is 143 ug/m3
Estimated PM2.5 Air Quality Index is 16402 Hazardous , TSP is 25958 Urgent

120 Dome Floor Air Particles 11-12-2025 22:24:40 0.3 um=2660 0.5 um=278
Outside Air Particles by APF11-12-2025_22:21:39_0.3um=17708_0.5um=8245_0.7um=7576_1.0um=7148_2.0um=5643_3.0um=1828_5.0um=317_10.0um=1_sc=8485489_fl=0.7_st=23_er=0_RH=97%_T=50.18F

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 204 feet above MH & estimated cloud temp is 47 F