Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out63.86566.9264.867.765.64 F
Dew Temp41.94846.5848.85047.05 F
Humidity455448565351.2 %
Wind Speed12115.6678.3 mph
Wind Dir267321325.0313240Az=294
Pressure25.7225.7725.7925.7125.94+0.24 inHg
Precip 00 0 No Precip
Time PST18:12:1318:12:1318:12:1418:12:1418:12:1418:12:15
KAIT inch Rain & Dew 06-01-2026 18:12:13 No Rain rainint= 1% outdew= 1% indew= 0%
120 inch Rain & Dew 06-01-2026 18:12:13 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 06-01-2026 18:12:14 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 06-01-2026 18:12:14 No Rain rainint= 0% outdew= 1% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter97333242162775084137018:03:34
In per 0.24 liter3805851 18:00:10

Estimated combined 0.3+0.5um particles weight as of 06-01-2026 18:03:34 is 71 ug/m3
Estimated PM2.5 Air Quality Index is 273 Very Unhealthy , TSP is 613 on Attention

120 Dome Floor Air Particles 06-01-2026 18:00:10 0.3 um=3805 0.5 um=851
Outside Air Particles by APF06-01-2026_18:03:34_0.3um=15546_0.5um=5179_0.7um=2599_1.0um=1198_2.0um=135_3.0um=21_5.0um=12_10.0um=1_sc=25833309_fl=1.0_st=23_er=0_RH=38%_T=73.76F

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 3863 feet above MH & estimated cloud temp is 26 F