Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out79.681.185.2881.684.682.43 F
Dew Temp38.448.343.750.351.346.4 F
Humidity233223343228.8 %
Wind Speed772.5324.3 mph
Wind Dir263286319.0284256Az=281
Pressure25.7325.7725.7925.7125.86+0.24 inHg
Precip 00 0 No Precip
Time PST13:28:1213:28:1413:28:1513:28:1413:28:1413:28:13
KAIT inch Rain & Dew 06-12-2026 13:28:12 No Rain rainint= 1% outdew= 1% indew= 0%
120 inch Rain & Dew 06-12-2026 13:28:14 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 06-12-2026 13:28:14 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 06-12-2026 13:28:14 No Rain rainint= 0% outdew= 1% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter3825809331153452112113:20:23
In per 0.24 liter1718267 13:25:35

Estimated combined 0.3+0.5um particles weight as of 06-12-2026 13:20:23 is 21 ug/m3
Estimated PM2.5 Air Quality Index is 146 Unhealthy for Sensitive Groups , TSP is 521 on Attention

120 Dome Floor Air Particles 06-12-2026 13:25:35 0.3 um=1718 0.5 um=267
Outside Air Particles by APF06-12-2026_13:20:23_0.3um=6110_0.5um=1293_0.7um=529_1.0um=245_2.0um=72_3.0um=35_5.0um=20_10.0um=3_sc=26766556_fl=1.0_st=23_er=0_RH=21%_T=89.78F

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 7454 feet above MH & estimated cloud temp is 7 F