Weather observations for the past three days for
Helena Regional Airport
| Date | Time (mdt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Temperature (ºF) | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | Pressure | Precipitation (in) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 21 | 01:53 | Calm | 10.00 | Fair | CLR | 51.1 | 28.9 | 43% | 29.86 | 1010.6 | |||||||
| 21 | 00:53 | S 5 | 10.00 | Fair | CLR | 50 | 30.9 | 48% | 49 | 29.85 | 1010.5 | ||||||
| 20 | 23:53 | Calm | 10.00 | Fair | CLR | 54 | 30 | 73.9 | 53.1 | 40% | 29.84 | 1010.0 | |||||
| 20 | 22:53 | Calm | 10.00 | Fair | CLR | 59 | 28.9 | 32% | 29.83 | 1009.8 | |||||||
| 20 | 21:53 | W 8 | 10.00 | Fair | CLR | 61 | 30 | 31% | 29.82 | 1009.7 | |||||||
| 20 | 20:53 | W 6 | 10.00 | Fair | CLR | 66 | 30 | 26% | 29.8 | 1009.2 | |||||||
| 20 | 19:53 | SW 3 | 10.00 | Fair | CLR | 72 | 27 | 19% | 29.79 | 1008.5 | |||||||
| 20 | 18:53 | SE 7 | 10.00 | Fair | CLR | 73 | 23 | 15% | 29.81 | 1009.4 | |||||||
| 20 | 17:53 | SE 7 | 10.00 | Fair | CLR | 73.9 | 23 | 75 | 63 | 15% | 29.82 | 1009.4 | |||||
| 20 | 16:53 | Vrbl 6 | 10.00 | Fair | CLR | 73.9 | 24.1 | 15% | 29.83 | 1009.5 | |||||||
| 20 | 15:53 | NE 8 | 10.00 | Fair | CLR | 73.9 | 24.1 | 15% | 29.85 | 1010.2 | |||||||
| 20 | 14:53 | E 8 | 10.00 | Fair | CLR | 73 | 25 | 17% | 29.86 | 1010.8 | |||||||
| 20 | 13:53 | E 9 | 10.00 | Fair | CLR | 70 | 27 | 20% | 29.88 | 1011.5 | |||||||
| 20 | 12:53 | NE 6 | 10.00 | Fair | CLR | 68 | 30 | 24% | 29.9 | 1012.4 | |||||||
| 20 | 11:53 | Calm | 10.00 | Fair | CLR | 64 | 30.9 | 64 | 39.9 | 29% | 29.93 | 1013.5 | |||||
| 20 | 10:53 | Calm | 10.00 | Fair | CLR | 57 | 30.9 | 37% | 29.94 | 1014.1 | |||||||
| 20 | 09:53 | NW 5 | 10.00 | Fair | CLR | 52 | 33.1 | 49% | 29.95 | 1015.0 | |||||||
| 20 | 08:53 | N 3 | 10.00 | Fair | CLR | 48 | 33.1 | 56% | 29.95 | 1014.8 | |||||||
| 20 | 07:53 | Calm | 10.00 | Fair | CLR | 44.1 | 32 | 63% | 29.96 | 1015.1 | |||||||
| 20 | 06:53 | Calm | 10.00 | Fair | CLR | 43 | 28.9 | 58% | 29.95 | 1014.7 | |||||||
| 20 | 05:53 | Calm | 10.00 | Fair | CLR | 44.1 | 30 | 51.1 | 41 | 58% | 29.95 | 1014.2 | |||||
| 20 | 04:53 | Calm | 10.00 | Fair | CLR | 45 | 28.9 | 54% | 29.95 | 1014.1 | |||||||
| 20 | 03:53 | Calm | 10.00 | Fair | CLR | 46 | 28.9 | 51% | 29.95 | 1014.1 | |||||||
| 20 | 02:53 | Calm | 10.00 | Fair | CLR | 46 | 28.9 | 51% | 29.94 | 1014.2 | |||||||
| 20 | 01:53 | Calm | 10.00 | Fair | CLR | 50 | 27 | 41% | 29.93 | 1013.8 | |||||||
| 20 | 00:53 | SW 5 | 10.00 | Fair | CLR | 50 | 28 | 43% | 49 | 29.92 | 1013.7 | ||||||
| 19 | 21:53 | Vrbl 3 | 10.00 | Fair | CLR | 53.1 | 27 | 37% | 29.9 | 1014.1 | |||||||
| 19 | 20:53 | W 8 | 10.00 | Fair | CLR | 59 | 26.1 | 28% | 29.88 | 1013.2 | |||||||
| 19 | 19:53 | S 6 | 10.00 | Fair | CLR | 64 | 26.1 | 24% | 29.88 | 1013.0 | |||||||
| 19 | 18:53 | E 8 | 10.00 | Fair | CLR | 66 | 23 | 19% | 29.91 | 1014.6 | |||||||
| 19 | 17:53 | E 13 | 10.00 | Fair | CLR | 69.1 | 23 | 69.1 | 55 | 17% | 29.92 | 1014.1 | |||||
| 19 | 16:53 | SE 8 | 10.00 | Fair | CLR | 68 | 21 | 17% | 29.92 | 1014.5 | |||||||
| 19 | 15:53 | E 12 G 20 | 10.00 | Fair | CLR | 66.9 | 24.1 | 20% | 29.95 | 1015.1 | |||||||
| 19 | 14:53 | E 10 G 17 | 10.00 | Fair | CLR | 64.9 | 24.1 | 21% | 29.99 | 1016.8 | |||||||
| 19 | 13:53 | E 9 | 10.00 | Fair | CLR | 62.1 | 21.9 | 21% | 30.01 | 1017.6 | |||||||
| 19 | 12:53 | NE 5 | 10.00 | Fair | CLR | 59 | 19 | 21% | 30.05 | 1019.2 | |||||||
| 19 | 11:53 | E 5 | 10.00 | Fair | CLR | 55 | 25 | 55 | 26.1 | 31% | 30.07 | 1020.0 | |||||
| 19 | 10:53 | Calm | 10.00 | Fair | CLR | 48.9 | 26.1 | 41% | 30.09 | 1020.8 | |||||||
| 19 | 09:53 | Calm | 10.00 | Fair | CLR | 43 | 25 | 49% | 30.09 | 1021.4 | |||||||
| 19 | 08:53 | NE 3 | 10.00 | Fair | CLR | 39 | 24.1 | 55% | 30.1 | 1021.4 | |||||||
| 19 | 07:53 | Calm | 10.00 | Fair | CLR | 35.1 | 21.9 | 59% | 30.1 | 1021.6 | |||||||
| 19 | 06:53 | NE 5 | 10.00 | Fair | CLR | 27 | 21 | 78% | 22 | 30.09 | 1021.6 | ||||||
| 19 | 05:53 | SW 3 | 10.00 | Fair | CLR | 33.1 | 21 | 42.1 | 30.9 | 61% | 30.09 | 1021.0 | |||||
| 19 | 04:53 | S 3 | 10.00 | Fair | CLR | 32 | 21 | 64% | 30.09 | 1021.0 | |||||||
| 19 | 03:53 | Calm | 10.00 | Fair | CLR | 35.1 | 21 | 57% | 30.08 | 1020.7 | |||||||
| 19 | 02:53 | Calm | 10.00 | Fair | CLR | 34 | 21 | 59% | 30.08 | 1020.9 | |||||||
| 19 | 01:53 | Calm | 10.00 | Fair | CLR | 37.9 | 19.9 | 48% | 30.08 | 1020.8 | |||||||
| 19 | 00:53 | W 5 | 10.00 | Fair | CLR | 37.9 | 21 | 51% | 35 | 30.07 | 1020.5 | ||||||
| 18 | 23:53 | NW 9 | 10.00 | Fair | CLR | 39 | 21.9 | 59 | 39 | 50% | 33 | 30.05 | 1020.1 | ||||
| 18 | 22:53 | W 10 | 10.00 | Fair | CLR | 42.1 | 23 | 47% | 37 | 30.05 | 1019.9 | ||||||
| 18 | 21:53 | W 9 | 10.00 | Fair | CLR | 45 | 23 | 42% | 41 | 30.03 | 1019.2 | ||||||
| 18 | 20:53 | W 7 | 10.00 | Fair | CLR | 50 | 23 | 35% | 48 | 30.01 | 1018.4 | ||||||
| 18 | 19:53 | E 7 | 10.00 | Fair | CLR | 54 | 21.9 | 29% | 30.01 | 1018.2 | |||||||
| 18 | 18:53 | E 13 | 10.00 | Fair | CLR | 59 | 19.9 | 22% | 30.03 | 1019.1 | |||||||
| 18 | 17:53 | E 10 | 10.00 | Fair | CLR | 59 | 19.9 | 60.1 | 48 | 22% | 30.05 | 1019.6 | |||||
| 18 | 16:53 | E 8 G 21 | 10.00 | Fair | CLR | 59 | 21 | 23% | 30.06 | 1019.9 | |||||||
| 18 | 15:53 | Vrbl 3 | 10.00 | Fair | CLR | 57 | 21 | 25% | 30.08 | 1020.8 | |||||||
| 18 | 14:53 | Calm | 10.00 | Fair | CLR | 55 | 21 | 26% | 30.1 | 1021.6 | |||||||
| 18 | 13:53 | SE 8 | 10.00 | Fair | CLR | 52 | 21 | 30% | 30.12 | 1022.5 | |||||||
| 18 | 12:53 | E 13 G 17 | 10.00 | Fair | CLR | 50 | 19.9 | 30% | 46 | 30.15 | 1023.7 | ||||||
| 18 | 11:53 | E 8 | 10.00 | Fair | CLR | 48 | 19 | 48 | 30 | 32% | 45 | 30.16 | 1024.2 | ||||
| 18 | 10:53 | N 7 | 10.00 | Fair | CLR | 46 | 17.1 | 31% | 43 | 30.17 | 1024.9 | ||||||
| 18 | 09:53 | W 10 | 10.00 | Fair | CLR | 44.1 | 16 | 32% | 39 | 30.18 | 1025.1 | ||||||
| 18 | 08:53 | Vrbl 3 | 10.00 | Fair | CLR | 39 | 16 | 39% | 30.19 | 1025.9 | |||||||
| 18 | 07:53 | Calm | 10.00 | Fair | CLR | 35.1 | 18 | 50% | 30.19 | 1026.1 | |||||||
| 18 | 06:53 | S 3 | 10.00 | Fair | CLR | 30 | 16 | 56% | 30.18 | 1025.9 | |||||||
| 18 | 05:53 | Calm | 10.00 | Fair | CLR | 32 | 16 | 37 | 30 | 52% | 30.17 | 1025.6 | |||||
| 18 | 04:53 | W 7 | 10.00 | Fair | CLR | 33.1 | 15.1 | 48% | 28 | 30.17 | 1024.7 | ||||||
| 18 | 03:53 | SW 12 | 10.00 | Fair | CLR | 35.1 | 15.1 | 44% | 28 | 30.16 | 1024.4 | ||||||
| 18 | 02:53 | SW 7 | 10.00 | Fair | CLR | 34 | 16 | 48% | 29 | 30.16 | 1024.6 | ||||||
| Date | Time (mdt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºF) | Pressure | Precipitation (in) | |||||||||||||||