Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out51.753.352.1652.253.752.61 F
Dew Temp35.641.540.6442.442.340.48 F
Humidity546465696563.4 %
Wind Speed19117.6212216.1 mph
Wind Dir273411.0360347Az=359
Pressure25.7925.8225.8525.7626.12+0.3 inHg
Precip 00 0 No Precip
Time PST19:08:1819:08:1819:08:1819:08:1919:08:1919:08:19
KAIT inch Rain & Dew 03-07-2026 19:08:18 No Rain rainint= 12% outdew= 1% indew= 0%
120 inch Rain & Dew 03-07-2026 19:08:18 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 03-07-2026 19:08:19 No Rain rainint= 2% outdew= 0% indew= 0%
Crossley Rain & Dew 03-07-2026 19:08:19 No Rain rainint= 0% outdew= 8% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter1638181103612473018:59:58
In per 0.24 liter68571 18:38:51

Estimated combined 0.3+0.5um particles weight as of 03-07-2026 18:59:58 is 6 ug/m3
Estimated PM2.5 Air Quality Index is 78 Moderate , TSP is 153 Above Secondary Standard

120 Dome Floor Air Particles 03-07-2026 18:38:51 0.3 um=685 0.5 um=71
Outside Air Particles by APF03-07-2026_18:59:58_0.3um=1570_0.5um=174_0.7um=99_1.0um=59_2.0um=23_3.0um=7_5.0um=3_10.0um=0_sc=18407621_fl=0.6_st=23_er=0_RH=60%_T=52.7F

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 2681 feet above MH & estimated cloud temp is 26 F