Weather observations for the past three days for
Helena Regional Airport
Metric (Imperial)
Date Time (mdt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
31 12:53 Calm 16.09 Fair CLR 23.9 9.4 40% 25 76.81 1023.1
31 11:53 Calm 16.09 Fair CLR 21.1 8.3 21.1 11.7 44% 76.86 1023.6
31 10:53 N 6 16.09 Fair CLR 18.3 8.3 52% 76.89 1024.4
31 09:53 Calm 16.09 Fair CLR 16.1 8.9 63% 76.91 1024.3
31 08:53 Calm 16.09 Fair CLR 14.4 7.8 65% 76.89 1024.1
31 07:53 E 6 16.09 Fair CLR 12.2 8.3 77% 76.89 1024.2
31 06:53 Calm 16.09 Fair CLR 11.7 7.2 74% 76.86 1023.6
31 05:53 Calm 16.09 Fair CLR 12.8 7.2 18.9 11.7 69% 76.84 1022.8
31 04:53 E 6 16.09 Fair CLR 12.2 7.8 75% 76.81 1022.7
31 03:53 Calm 16.09 Fair CLR 13.9 7.2 64% 76.73 1021.8
31 02:53 Calm 16.09 Fair CLR 14.4 6.7 60% 76.71 1021.4
31 01:53 Calm 16.09 Fair CLR 15 7.2 60% 76.71 1021.3
31 00:53 Calm 16.09 Fair CLR 15 7.2 60% 76.66 1021.2
30 23:53 W 7 16.09 Fair CLR 18.3 5.6 29.4 16.7 43% 76.68 1021.2
30 22:53 NE 6 16.09 Fair CLR 16.7 7.8 56% 76.66 1021.3
30 21:53 SW 20 16.09 Fair CLR 22.2 3.3 29% 76.58 1020.1
30 20:53 SW 19 16.09 Fair CLR 23.9 1.7 23% 25 76.56 1019.8
30 19:53 W 19 16.09 Fair CLR 25.6 0 19% 25 76.5 1018.8
30 18:53 W 28 G 41 16.09 A Few Clouds FEW120 27.8 -2.2 14% 26 76.53 1018.9
30 17:53 W 17 16.09 Mostly Cloudy BKN110 29.4 3.3 29.4 20 19% 28 76.48 1018.1
30 16:53 N 9 16.09 A Few Clouds FEW100 27.8 7.2 27% 27 76.5 1018.4
30 15:53 Calm 16.09 A Few Clouds FEW100 26.7 8.3 31% 26 76.53 1019.1
30 14:53 E 9 16.09 Fair CLR 26.7 10 35% 26 76.58 1019.5
30 13:53 NE 11 16.09 Fair CLR 25 11.7 43% 26 76.61 1020.3
30 12:53 Vrbl 6 16.09 Fair CLR 22.8 12.8 53% 76.68 1021.3
30 11:53 E 6 16.09 Fair CLR 20 13.9 20 11.7 68% 76.73 1022.2
30 10:53 Calm 16.09 Fair CLR 17.2 12.8 76% 76.76 1023.0
30 09:53 E 6 3.22 Mostly Cloudy BKN006 15 12.8 87% 76.78 1023.5
30 08:53 N 6 0.80 Partly Cloudy FEW003 SCT011 12.8 12.2 96% 76.78 1023.7
30 07:53 Calm 16.09 Overcast OVC100 12.2 10.6 90% 76.81 1023.7
30 06:53 Calm 16.09 Overcast OVC100 11.7 11.1 96% 76.76 1023.2
30 05:53 Calm 16.09 Mostly Cloudy BKN110 12.2 11.1 16.1 11.7 93% 76.73 1022.6
30 04:53 S 6 16.09 Mostly Cloudy BKN110 12.8 10.6 87% 76.73 1022.1
30 03:53 W 7 16.09 Fair CLR 11.7 10.6 93% 76.66 1021.5
30 02:53 Calm 16.09 Fair CLR 12.8 11.1 90% 76.66 1021.1
30 01:53 Calm 16.09 Fair CLR 13.9 11.1 83% 76.68 1021.4
30 00:53 Calm 16.09 Fair CLR 14.4 12.2 87% 76.66 1021.3
29 23:53 Calm 16.09 A Few Clouds FEW060 15.6 12.8 20.6 15.6 84% 76.66 1021.3
29 22:53 W 9 16.09 Partly Cloudy FEW070 SCT120 16.1 12.8 81% 76.68 1021.9
29 21:53 W 11 16.09 A Few Clouds FEW048 16.7 12.2 75% 76.71 1022.1
29 20:53 NW 13 16.09 A Few Clouds FEW044 17.8 11.7 68% 76.66 1021.6
29 19:53 NW 15 16.09 Fair CLR 18.3 11.7 66% 76.58 1020.7
29 18:53 NW 11 16.09 Overcast OVC110 20.6 13.9 66% 76.53 1019.9
29 17:53 W 7 16.09 Mostly Cloudy FEW070 SCT090 BKN110 20 13.3 26.7 17.8 65% 76.53 1019.9 0.2 0.2
29 16:53 N 15 16.09 Fair CLR 23.9 12.2 48% 25 76.53 1019.2
29 15:53 N 17 16.09 Mostly Cloudy BKN075 22.8 12.8 53% 76.5 1019.0
29 14:53 Vrbl 9 16.09 A Few Clouds FEW110 25 10.6 40% 26 76.5 1018.6
29 13:53 NE 11 16.09 Overcast BKN080 OVC095 22.8 11.7 50% 76.56 1019.7
29 12:53 E 11 16.09 Fair CLR 22.2 12.8 55% 76.61 1020.3
29 11:53 E 11 16.09 Fair CLR 20.6 12.2 20.6 12.2 59% 76.66 1021.0
29 10:53 SE 9 16.09 Overcast OVC080 18.3 13.3 73% 76.68 1021.5
29 09:53 Calm 16.09 Overcast OVC070 16.1 13.9 87% 76.68 1021.9
29 08:53 Calm 16.09 Overcast OVC070 15 12.8 87% 76.66 1021.9
29 07:53 Calm 16.09 Overcast OVC060 13.9 12.2 90% 76.66 1021.9
29 06:53 Calm 16.09 Overcast BKN050 OVC090 12.2 11.7 97% 76.66 1021.9
29 05:53 SW 7 16.09 A Few Clouds FEW075 13.3 11.7 16.7 12.8 90% 76.66 1021.6
29 04:53 Calm 16.09 A Few Clouds FEW065 13.9 12.8 93% 76.63 1021.6
29 03:53 Calm 16.09 Overcast OVC065 13.9 12.8 93% 76.61 1021.2
29 02:53 SW 7 16.09 Fair CLR 14.4 12.2 87% 76.61 1021.1
29 01:53 W 6 16.09 Mostly Cloudy BKN100 15 13.9 93% 76.61 1020.9
29 00:53 NW 7 16.09 Partly Cloudy SCT090 16.1 13.9 87% 76.61 1020.9
28 23:53 Calm 16.09 Mostly Cloudy BKN080 16.7 15 17.8 16.1 90% 76.61 1020.8 0.03
28 22:53 S 7 16.09 Overcast OVC065 16.7 15 90% 76.63 1021.0
28 21:53 Calm 16.09 Overcast OVC060 16.7 15.6 93% 76.61 1021.1
28 20:53 Calm 16.09 Overcast SCT060 OVC110 16.7 15.6 93% 76.61 1021.1 0.03
28 19:53 Calm 16.09 Overcast BKN080 OVC095 17.2 15.6 90% 76.58 1020.8
28 18:53 Calm 16.09 Overcast BKN060 BKN080 OVC090 17.8 15.6 87% 76.58 1020.6 0.03
28 17:53 Calm 12.87 Light Rain FEW060 BKN075 OVC100 17.2 15.6 17.2 16.1 90% 76.61 1020.8 0.2 0.94
28 16:53 S 9 8.05 Light Rain Fog/Mist SCT055 OVC075 16.7 15 90% 76.61 1020.7 0.13
28 15:53 SE 6 4.02 Light Rain Fog/Mist FEW006 BKN049 OVC070 16.7 15.6 93% 76.61 1020.8 0.41
28 14:53 E 6 16.09 Overcast FEW010 BKN043 OVC055 16.7 14.4 86% 76.61 1020.8 0.05 0.2
28 13:53 Calm 14.48 Light Rain SCT010 BKN017 OVC042 16.7 15 90% 76.61 1020.6 0.08
Date Time (mdt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)