Precipitation in New Miami Colony trails that of 95% of U.S. towns: 13 inches a year
July afternoons average 80°. By January nights alone, it runs colder than 93% of U.S. towns. Decade by decade the climate has edged up, 1.7° above 1901–2000. Seedlings are safe outdoors from about May 17, with the first autumn frost due around September 24.
A year in New Miami Colony at a glance
Each month’s typical high and low, and what it brings.
What stands out about New Miami Colony’s climate
Compared with towns across the U.S., with New Miami Colony’s place in Montana beside it.
What a year in New Miami Colony feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 129 frost-free days a year
In half of years the last 32° night comes by May 17 and the first by September 24. Frost and day counts come from NOAA’s station at Valier, MT, 8 miles from the town’s center, at about the same height.
The 2023 USDA map puts New Miami Colony’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −25°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 47 inches of snow a winter
Snow, measured at Conrad, MT, falls mostly in February and November. Precipitation (rain plus melted snow) adds up to 13 inches a year; June is the wettest month and December the driest. Rain or snow falls on about 74 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in New Miami Colony
97% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from September through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Valier, MT.
Living with New Miami Colony’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
129 frost-free days in zone 4a. The last frost comes by May 17 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 24.
Months with highs of 62–84° and lows of 40° or more: June, July, August and September.
Parks & trails →Cold waves are 50% of the yearly building losses FEMA expects in New Miami Colony from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →New Miami Colony and similar climates
TownRatings has no climate map of the towns around New Miami Colony yet.
Climates most like New Miami Colony’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| New Miami Colony, MT | 11° | 80° | 13" | 47" |
| Laramie, WY | 12° | 81° | 12" | 64" |
| Minot, ND | 2° | 82° | 17" | 52" |
| Taos, NM | 11° | 84° | 13" | 28" |
| Gleneagle, CO | 14° | 84° | 21" | 55" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in New Miami Colony averaged 1.7° warmer than the 1900s. The biggest change is in January (+5.1°).
A bigger shift than in 70% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How New Miami Colony compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with New Miami Colony’s place among Montana’s.
New Miami Colony weather by month
Highs, lows and precipitation from NOAA’s grid at New Miami Colony’s center; snow, wet days and snow on the ground from Conrad, MT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 11° | 0.3" | 6.7" | 5 | 19 | 9° – 34° |
| February | 36° | 12° | 0.4" | 8.0" | 5 | 12 | 1° – 36° |
| March | 44° | 20° | 0.6" | 6.8" | 5 | 8 | 15° – 41° |
| April | 53° | 28° | 1.3" | 5.5" | 7 | 2 | 35° – 46° |
| May | 63° | 37° | 2.2" | 1.1" | 9 | 0 | 45° – 56° |
| June | 70° | 44° | 2.8" | 0.0" | 10 | 0 | 54° – 63° |
| July | 80° | 50° | 1.1" | 0.0" | 6 | 0 | 56° – 72° |
| August | 80° | 48° | 1.1" | 0.3" | 7 | 0 | 58° – 68° |
| September | 70° | 40° | 1.2" | 0.7" | 6 | 0 | 51° – 60° |
| October | 55° | 30° | 0.9" | 4.0" | 5 | 2 | 35° – 49° |
| November | 42° | 20° | 0.5" | 7.5" | 5 | 10 | 19° – 40° |
| December | 34° | 13° | 0.3" | 6.2" | 5 | 18 | 11° – 33° |
| Year | 55° | 29° | 12.8" | 46.8" | 74 | 71 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 1° to 36°. June is the most reliable, staying within 9°.
Where New Miami Colony’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at New Miami Colony’s center.
- Snow: Conrad, MT.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Valier, MT, 8 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about New Miami Colony’s climate
What is the weather like in New Miami Colony?
A typical July afternoon reaches 80°, a January night drops to 11°, and about 47 inches of snow falls in a normal winter. Colder January nights than 93% of U.S. towns; cooler July afternoons than 92% of U.S. towns.
How cold does it get in New Miami Colony in winter?
January nights average 11°. About 171 nights a year reach 32° or below and 22 reach 0° or below. In the coldest January of the last 30 years the month averaged 9°.
How much snow does New Miami Colony get?
About 47 inches in a normal winter at Conrad, MT, most of it in February and November, with snow on the ground about 71 days a year.
How hot does it get in New Miami Colony?
July, with a typical high of 80° and a low of 50°. About 9 days a year reach 90° (Valier, MT).
When is the first and last frost in New Miami Colony?
In half of years the last spring frost (32°) comes by May 17 and the first fall frost by September 24, about 129 frost-free days, at Valier, MT.
What growing zone is New Miami Colony in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −25°.
What is the best time of year to visit New Miami Colony?
By one simple rule (highs of 62–84° and lows of 40° or more), June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is New Miami Colony getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 70% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in New Miami Colony.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.