Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out57.358.258.8256.158.657.8 F
Dew Temp4846.644.2446.54746.46 F
Humidity716559706566 %
Wind Speed258.5023.5 mph
Wind Dir1658200.0360233Az=235
Pressure25.6825.725.7125.6325.98+0.16 inHg
Precip 00 0 No Precip
Time PST13:07:0013:07:0213:07:0213:07:0113:07:0013:07:01
KAIT inch Rain & Dew 10-09-2025 13:07:00 No Rain rainint= 0% outdew= 1% indew= 0%
120 inch Rain & Dew 10-09-2025 13:07:02 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 10-09-2025 13:06:57 No Rain rainint= 1% outdew= 0% indew= 0%
Crossley Rain & Dew 10-09-2025 13:06:57 No Rain rainint= 0% outdew= 0% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter364811726884068892012:58:18
In per 0.24 liter3739988 13:00:34

Estimated combined 0.3+0.5um particles weight as of 10-09-2025 12:58:18 is 25 ug/m3
Estimated PM2.5 Air Quality Index is 286 Very Unhealthy , TSP is 430 on Attention

120 Dome Floor Air Particles 10-09-2025 13:00:34 0.3 um=3739 0.5 um=988
Outside Air Particles by APF10-09-2025_12:58:18_0.3um=5828_0.5um=1873_0.7um=1099_1.0um=650_2.0um=141_3.0um=15_5.0um=4_10.0um=0_sc=5514617_fl=1.0_st=23_er=0_RH=45%_T=67.82F

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 2636 feet above MH & estimated cloud temp is 32 F