Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out44.545.945.1444.745.945.22 F
Dew Temp43.145.93244.745.342.2 F
Humidity9510098.241009898.24 %
Wind Speed6412.11257.8 mph
Wind Dir36165183.0360204Az=160
Pressure25.6325.6625.6725.5925.95+0.12 inHg
Precip 01 0 Dew/Driz
Time PST23:11:4123:11:4223:11:4223:11:3923:11:4123:11:41
KAIT inch Rain & Dew 11-13-2025 23:11:41 Raining! rainint= 10% outdew= 87% indew= 1%
120 inch Rain & Dew 11-13-2025 23:11:42 No Rain rainint= 0% outdew= 95% indew= 0%
40 inch Rain & Dew 11-13-2025 23:11:35 Raining! rainint= 4% outdew= 92% indew= 0%
Crossley Rain & Dew 11-13-2025 23:11:41 Raining! rainint= 4% outdew= 91% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter440196196192179137972423:04:50
In per 0.24 liter6218 23:02:47

Estimated combined 0.3+0.5um particles weight as of 11-13-2025 23:04:50 is 3 ug/m3
Estimated PM2.5 Air Quality Index is 581 Hazardous , TSP is 4863 Urgent

120 Dome Floor Air Particles 11-13-2025 23:02:47 0.3 um=62 0.5 um=18
Outside Air Particles by APF11-13-2025_23:04:50_0.3um=422_0.5um=188_0.7um=188_1.0um=184_2.0um=172_3.0um=132_5.0um=93_10.0um=23_sc=8574461_fl=0.6_st=23_er=0_RH=101%_T=46.94F

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 0 feet above MH & estimated cloud temp is 45 F