Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out59.461.161.5261.863.461.44 F
Dew Temp25.23328.5834.337.831.77 F
Humidity273528363933 %
Wind Speed458.1244.6 mph
Wind Dir168132154.011995Az=134
Pressure25.8325.8825.925.8326.13+0.35 inHg
Precip 00 0 No Precip
Time PST08:49:5008:49:5108:49:5108:49:4808:49:5008:49:50
KAIT inch Rain & Dew 04-04-2026 08:49:50 No Rain rainint= 3% outdew= 1% indew= 0%
120 inch Rain & Dew 04-04-2026 08:49:51 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 04-04-2026 08:49:48 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 04-04-2026 08:49:50 No Rain rainint= 0% outdew= 2% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter2794828522361133308008:46:35
In per 0.24 liter1601367 08:46:54

Estimated combined 0.3+0.5um particles weight as of 04-04-2026 08:46:35 is 19 ug/m3
Estimated PM2.5 Air Quality Index is 432 Hazardous , TSP is 700 on Alert

120 Dome Floor Air Particles 04-04-2026 08:46:54 0.3 um=1601 0.5 um=367
Outside Air Particles by APF04-04-2026_08:46:35_0.3um=4464_0.5um=1324_0.7um=835_1.0um=577_2.0um=214_3.0um=49_5.0um=13_10.0um=0_sc=20789588_fl=1.0_st=23_er=0_RH=24%_T=69.44F

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 6386 feet above MH & estimated cloud temp is -2 F