Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out3738.437.7637.5 37.66 F
Dew Temp35.337.53237.5 35.57 F
Humidity949796.74100 96.93 %
Wind Speed16623.913 14.7 mph
Wind Dir18927172.096 Az=130
Pressure25.6225.6525.6725.626.01+0.12 inHg
Precip 01 0 Dew/Driz
Time PST22:45:3522:45:3422:45:3622:45:3622:45:3522:45:36
KAIT inch Rain & Dew 02-14-2026 22:45:35 Raining! rainint= 8% outdew= 66% indew= 0%
120 inch Rain & Dew 02-14-2026 22:45:37 No Rain rainint= 0% outdew= 60% indew= 0%
40 inch Rain & Dew 02-14-2026 22:45:36 Raining! rainint= 13% outdew= 98% indew= 0%
Crossley Rain & Dew 02-14-2026 22:45:35 No Rain rainint= 4% outdew= 79% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter47920118831020894257603354311586222:35:42
In per 0.24 liter1588332 22:18:00

Estimated combined 0.3+0.5um particles weight as of 02-14-2026 22:35:42 is 296 ug/m3
Estimated PM2.5 Air Quality Index is 24709 Hazardous , TSP is 58662 Urgent

120 Dome Floor Air Particles 02-14-2026 22:18:00 0.3 um=1588 0.5 um=332
Outside Air Particles by APF02-14-2026_22:35:42_0.3um=15308_0.5um=3796_0.7um=3261_1.0um=3011_2.0um=2429_3.0um=1132_5.0um=370_10.0um=20_sc=16606479_fl=0.2_st=23_er=0_RH=99%_T=39.74F

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 204 feet above MH & estimated cloud temp is 36 F