Baby clothes in Helena, MT: the weather each month
In shortIn Helena, MT, the average temperature goes from 23 °F (-5.0 °C) in January to 71 °F (21.4 °C) in July, a swing of 48 °F (26.4 °C). A baby born on September 15 needs 2 snowsuits or buntings by 6 months; one born on April 15, 0.
The typical weather in Helena
| Month | Average | Low | High |
|---|---|---|---|
| January | 23 °F (-5.0 °C) | 13 °F (-10.3 °C) | 32 °F (0.2 °C) |
| February | 27 °F (-2.7 °C) | 17 °F (-8.2 °C) | 37 °F (2.9 °C) |
| March | 36 °F (2.3 °C) | 25 °F (-4.1 °C) | 47 °F (8.6 °C) |
| April | 44 °F (6.9 °C) | 32 °F (0.2 °C) | 57 °F (13.7 °C) |
| May | 54 °F (12.2 °C) | 42 °F (5.3 °C) | 66 °F (19.1 °C) |
| June | 62 °F (16.5 °C) | 49 °F (9.3 °C) | 75 °F (23.7 °C) |
| July | 71 °F (21.4 °C) | 55 °F (12.8 °C) | 86 °F (30.1 °C) |
| August | 69 °F (20.4 °C) | 53 °F (11.6 °C) | 85 °F (29.2 °C) |
| September | 59 °F (14.9 °C) | 45 °F (7.0 °C) | 73 °F (22.9 °C) |
| October | 46 °F (7.5 °C) | 33 °F (0.8 °C) | 58 °F (14.2 °C) |
| November | 33 °F (0.4 °C) | 23 °F (-5.1 °C) | 43 °F (6.0 °C) |
| December | 23 °F (-4.8 °C) | 14 °F (-9.9 °C) | 33 °F (0.3 °C) |
Freezing months, with an average low below 32 °F (0 °C): from November to March. In those months the list adds: snowsuit or bunting. Warm one-piece or bag for going out on freezing days. Comes off before buckling the car seat and when you get home.
Typical weather, the average of many years; not a forecast. Climate normals: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020, station HELENA RGNL AP, MT US (USW00024144). Palecki, M., Durre, I., Applequist, S., Arguez, A., Lawrimore, J. (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). https://doi.org/10.25921/wck8-er13. Accessed 2026-10-13.
What a baby born in Helena needs, by birth month
A baby born on September 15 spends 183 of the first 183 days in cold months and needs 2 snowsuits or buntings by 6 months; a baby born on April 15, 0. The table shows all 12 months.
| Born on | Cold days in the first 6 months | Long-sleeve bodysuits | Short-sleeve bodysuits | Fleece sleepers | Snowsuits or buntings |
|---|---|---|---|---|---|
| January 15 | 167 of 183 | 7 | 7 | 2 | 1 |
| February 15 | 136 of 183 | 7 | 7 | 2 | 1 |
| March 15 | 121 of 183 | 7 | 7 | 2 | 1 |
| April 15 | 121 of 183 | 7 | 7 | 2 | 0 |
| May 15 | 121 of 183 | 7 | 7 | 2 | 1 |
| June 15 | 121 of 183 | 7 | 7 | 2 | 1 |
| July 15 | 135 of 183 | 7 | 7 | 2 | 1 |
| August 15 | 166 of 183 | 7 | 7 | 2 | 1 |
| September 15 | 183 of 183 | 7 | 7 | 2 | 2 |
| October 15 | 183 of 183 | 7 | 7 | 2 | 2 |
| November 15 | 183 of 183 | 7 | 7 | 2 | 2 |
| December 15 | 183 of 183 | 7 | 7 | 2 | 2 |
Without heating at home, a baby born on September 15 would need 12 long-sleeve bodysuits.
Cotokim's list engine, balanced style, laundry every 2 days, for 1 baby born on the 15th of each month, with a clothes dryer and a home heated in winter (the tool's starting answers in this country). A month is cold when its average is below 64 °F (18 °C), and hot from 75 °F (24 °C) up. The exact due date changes the numbers a little; the tool does the math for your month.
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The list for your baby in Helena
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