Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out57.458.559.958.159.958.76 F
Dew Temp28.233.434.1538.440.134.85 F
Humidity333938484841.2 %
Wind Speed331.8222.4 mph
Wind Dir259335289.0263242Az=276
Pressure25.962626.0225.9526.28+0.47 inHg
Precip 00 0 No Precip
Time PST14:49:3914:49:3814:49:3814:49:3814:49:3614:49:37
KAIT inch Rain & Dew 02-07-2026 14:49:39 No Rain rainint= 1% outdew= 1% indew= 0%
120 inch Rain & Dew 02-07-2026 14:49:35 No Rain rainint= 0% outdew= 1% indew= 0%
40 inch Rain & Dew 02-07-2026 14:49:38 No Rain rainint= 0% outdew= 0% indew= 0%
Crossley Rain & Dew 02-07-2026 14:49:39 No Rain rainint= 0% outdew= 0% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter7510100549329392152014:39:48
In per 0.24 liter2184265 14:20:04

Estimated combined 0.3+0.5um particles weight as of 02-07-2026 14:39:48 is 34 ug/m3
Estimated PM2.5 Air Quality Index is 299 Very Unhealthy , TSP is 451 on Attention

120 Dome Floor Air Particles 02-07-2026 14:20:04 0.3 um=2184 0.5 um=265
Outside Air Particles by APF02-07-2026_14:39:48_0.3um=10796_0.5um=1446_0.7um=710_1.0um=422_2.0um=133_3.0um=22_5.0um=3_10.0um=0_sc=15973240_fl=0.9_st=23_er=0_RH=30%_T=69.62F

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 5704 feet above MH & estimated cloud temp is 2 F