Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out47.649.548.024748.348.08 F
Dew Temp30.833.533.6138.53935.08 F
Humidity525457727061 %
Wind Speed12136.5668.7 mph
Wind Dir241269265.0237246Az=252
Pressure25.7825.8225.8425.7726.13+0.29 inHg
Precip 00 0 No Precip
Time PST00:54:0600:54:0500:54:0700:54:0600:54:0700:54:04
KAIT inch Rain & Dew 03-04-2026 00:54:06 No Rain rainint= 4% outdew= 1% indew= 0%
120 inch Rain & Dew 03-04-2026 00:54:08 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 03-04-2026 00:54:02 No Rain rainint= 2% outdew= 0% indew= 0%
Crossley Rain & Dew 03-04-2026 00:54:07 No Rain rainint= 0% outdew= 3% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter21843351841062610000:48:03
In per 0.24 liter1326173 00:39:12

Estimated combined 0.3+0.5um particles weight as of 03-04-2026 00:48:03 is 10 ug/m3
Estimated PM2.5 Air Quality Index is 84 Moderate , TSP is 113 Normal

120 Dome Floor Air Particles 03-04-2026 00:39:12 0.3 um=1326 0.5 um=173
Outside Air Particles by APF03-04-2026_00:48:03_0.3um=2791_0.5um=429_0.7um=236_1.0um=136_2.0um=34_3.0um=2_5.0um=1_10.0um=0_sc=18082959_fl=0.8_st=23_er=0_RH=65%_T=47.48F

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 3636 feet above MH & estimated cloud temp is 13 F