Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out52.556.854.3255.853.754.62 F
Dew Temp37.343.141.3643.944.642.05 F
Humidity566061647162.4 %
Wind Speed1078.7377.1 mph
Wind Dir181247190.0198225Az=208
Pressure25.625.6525.6725.625.93+0.12 inHg
Precip 00 0 No Precip
Time PST14:10:0814:10:1114:10:1014:10:0914:10:1114:10:09
KAIT inch Rain & Dew 04-24-2026 14:10:08 No Rain rainint= 1% outdew= 1% indew= 0%
120 inch Rain & Dew 04-24-2026 14:10:11 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 04-24-2026 14:10:09 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 04-24-2026 14:10:11 No Rain rainint= 0% outdew= 1% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter1000428671644887175211014:04:51
In per 0.24 liter1746466 13:56:39

Estimated combined 0.3+0.5um particles weight as of 04-24-2026 14:04:51 is 66 ug/m3
Estimated PM2.5 Air Quality Index is 568 Hazardous , TSP is 861 on Alert

120 Dome Floor Air Particles 04-24-2026 13:56:39 0.3 um=1746 0.5 um=466
Outside Air Particles by APF04-24-2026_14:04:51_0.3um=12783_0.5um=3664_0.7um=2101_1.0um=1134_2.0um=224_3.0um=27_5.0um=2_10.0um=0_sc=22536369_fl=0.8_st=23_er=0_RH=47%_T=62.6F

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 3113 feet above MH & estimated cloud temp is 26 F