Mt Hamilton Weather
LO FriendsDavisCopDavis120VaisaAPFDavis40DavisCroAverage
Temp Out40.141.541 41.741.07 F
Dew Temp37.338.732 39.536.87 F
Humidity9090100 9293 %
Wind Speed41012.8 119.4 mph
Wind Dir20168138.0 101Az=114
Pressure25.4325.4725.525.4225.78--0.05 inHg
Precip 01 0 Dew/Driz
Time PST14:58:1514:58:1514:58:1614:58:1414:58:1514:58:14
KAIT inch Rain & Dew 02-10-2026 14:58:15 Raining! rainint= 74% outdew= 86% indew= 0%
120 inch Rain & Dew 02-10-2026 14:58:15 Raining! rainint=100% outdew= 85% indew= 0%
40 inch Rain & Dew 02-10-2026 14:58:14 Raining! rainint=100% outdew= 91% indew= 0%
Crossley Rain & Dew 02-10-2026 14:58:15 Raining! rainint= 57% outdew= 90% indew= 0%
Particles um0.30.50.71.02.03.05.010.0Time
Out per 0.24 liter42126183341885571014:50:49
In per 0.24 liter3097433 14:43:54

Estimated combined 0.3+0.5um particles weight as of 02-10-2026 14:50:49 is 20 ug/m3
Estimated PM2.5 Air Quality Index is 178 Unhealthy , TSP is 263 Above Primary Standard

120 Dome Floor Air Particles 02-10-2026 14:43:54 0.3 um=3097 0.5 um=433
Outside Air Particles by APF02-10-2026_14:50:49_0.3um=5383_0.5um=790_0.7um=427_1.0um=241_2.0um=71_3.0um=10_5.0um=2_10.0um=0_sc=16233058_fl=0.8_st=23_er=0_RH=92%_T=43.16F

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 636 feet above MH & estimated cloud temp is 35 F