Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out61.663.661.5262.763.762.62 F
Dew Temp17.623.923.3624.222.922.39 F
Humidity182223232121.4 %
Wind Speed16216.719814.1 mph
Wind Dir291319332.0360261Az=313
Pressure25.7525.825.8125.7326.03+0.26 inHg
Precip 00 0 No Precip
Time PST18:39:5518:39:5518:39:5718:39:5518:39:5718:39:57
KAIT inch Rain & Dew 05-14-2026 18:39:52 No Rain rainint= 0% outdew= 1% indew= 0%
120 inch Rain & Dew 05-14-2026 18:39:55 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 05-14-2026 18:39:55 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 05-14-2026 18:39:57 No Rain rainint= 0% outdew= 1% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter18364562311112330018:33:33
In per 0.24 liter1630382 18:36:18

Estimated combined 0.3+0.5um particles weight as of 05-14-2026 18:33:33 is 11 ug/m3
Estimated PM2.5 Air Quality Index is 74 Moderate , TSP is 112 Normal

120 Dome Floor Air Particles 05-14-2026 18:36:18 0.3 um=1630 0.5 um=382
Outside Air Particles by APF05-14-2026_18:33:33_0.3um=2933_0.5um=729_0.7um=370_1.0um=178_2.0um=37_3.0um=6_5.0um=1_10.0um=0_sc=24280180_fl=1.0_st=23_er=0_RH=28%_T=62.96F

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 9022 feet above MH & estimated cloud temp is -26 F