Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out60.360.860.0859.462.960.69 F
Dew Temp31.540.937.5840.239.938.01 F
Humidity344843494343.4 %
Wind Speed8127.81138.4 mph
Wind Dir346353322.022302Az=341
Pressure25.7925.8325.8525.7726.06+0.3 inHg
Precip 00 0 No Precip
Time PST17:10:1417:10:1517:10:1617:10:1517:10:1617:10:17
KAIT inch Rain & Dew 03-14-2026 17:10:14 No Rain rainint= 5% outdew= 1% indew= 0%
120 inch Rain & Dew 03-14-2026 17:10:15 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 03-14-2026 17:10:15 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 03-14-2026 17:10:16 No Rain rainint= 0% outdew= 26% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter1513238116672032117:02:12
In per 0.24 liter910154 17:03:39

Estimated combined 0.3+0.5um particles weight as of 03-14-2026 17:02:12 is 7 ug/m3
Estimated PM2.5 Air Quality Index is 65 Moderate , TSP is 223 Above Secondary Standard

120 Dome Floor Air Particles 03-14-2026 17:03:39 0.3 um=910 0.5 um=154
Outside Air Particles by APF03-14-2026_17:02:12_0.3um=2418_0.5um=381_0.7um=186_1.0um=108_2.0um=32_3.0um=6_5.0um=4_10.0um=2_sc=19005242_fl=1.0_st=23_er=0_RH=36%_T=63.32F

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 4522 feet above MH & estimated cloud temp is 16 F