Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out36.437.537.0436.537.536.98 F
Dew Temp3537.23236.536.935.51 F
Humidity959997.991009897.99 %
Wind Speed22148.5251416.7 mph
Wind Dir26323347.03718Az=7
Pressure25.5925.6125.6225.5425.98+0.07 inHg
Precip 00 0 Dew?
Time PST02:29:2602:29:2502:29:2602:29:2502:29:2402:29:25
KAIT inch Rain & Dew 11-21-2025 02:29:22 No Rain rainint= 1% outdew= 87% indew= 0%
120 inch Rain & Dew 11-21-2025 02:29:25 No Rain rainint= 0% outdew= 92% indew= 0%
40 inch Rain & Dew 11-21-2025 02:29:25 No Rain rainint= 3% outdew= 89% indew= 0%
Crossley Rain & Dew 11-21-2025 02:29:24 Raining! rainint= 1% outdew= 93% indew= 1%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter3923038231380773788736853322341993554202:26:53
In per 0.24 liter64154 02:29:14

Estimated combined 0.3+0.5um particles weight as of 11-21-2025 02:26:53 is 622 ug/m3
Estimated PM2.5 Air Quality Index is 119772 Hazardous , TSP is 542480 Urgent

120 Dome Floor Air Particles 11-21-2025 02:29:14 0.3 um=641 0.5 um=54
Outside Air Particles by APF11-21-2025_02:26:53_0.3um=50128_0.5um=48852_0.7um=48654_1.0um=48412_2.0um=47091_3.0um=41189_5.0um=25473_10.0um=693_sc=9191276_fl=0.8_st=23_er=0_RH=103%_T=39.2F

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 68 feet above MH & estimated cloud temp is 36 F