Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out66.368.466.5666.267.867.05 F
Dew Temp25.134.730.5636.735.832.57 F
Humidity212926343128.2 %
Wind Speed111111.0101110.8 mph
Wind Dir9010897.08663Az=89
Pressure25.9425.9825.9925.9126.16+0.44 inHg
Precip 00 0 No Precip
Time PST21:49:4321:49:4321:49:4521:49:4421:49:4421:49:45
KAIT inch Rain & Dew 11-10-2025 21:49:43 No Rain rainint= 1% outdew= 1% indew= 0%
120 inch Rain & Dew 11-10-2025 21:49:40 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 11-10-2025 21:49:44 No Rain rainint= 1% outdew= 0% indew= 0%
Crossley Rain & Dew 11-10-2025 21:49:44 No Rain rainint= 0% outdew= 0% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter70511455401430021:45:26
In per 0.24 liter42866 21:38:37

Estimated combined 0.3+0.5um particles weight as of 11-10-2025 21:45:26 is 3 ug/m3
Estimated PM2.5 Air Quality Index is 45 Good , TSP is 62 Normal

120 Dome Floor Air Particles 11-10-2025 21:38:37 0.3 um=428 0.5 um=66
Outside Air Particles by APF11-10-2025_21:45:26_0.3um=1127_0.5um=183_0.7um=89_1.0um=65_2.0um=23_3.0um=5_5.0um=0_10.0um=0_sc=8310541_fl=1.0_st=23_er=0_RH=28%_T=66.02F

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 7659 feet above MH & estimated cloud temp is -7 F