Hardly any U.S. towns see harsher January nights than Northville
Expect July afternoons of about 84°. Its yearly precipitation falls short of 89% of U.S. towns. Warming shows here too: 0.7° more than in 1901–2000, led by January. Tender plants can go out after about May 11; in half of years the first frost comes by September 27.
A year in Northville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Northville’s climate
Compared with towns across the U.S., with Northville’s place in South Dakota beside it.
What a year in Northville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 137 frost-free days a year
In half of years the last 32° night comes by May 11 and the first by September 27. Frost and day counts come from NOAA’s station at Mellette 4 W, SD, 0.2 miles from the town’s center, at about the same height.
The 2023 USDA map puts Northville’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −26°. 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 43 inches of snow a winter
Snow, measured at Mellette 4 W, SD, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 21 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 88 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Northville
94% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Mellette 4 W, SD.
Living with Northville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
137 frost-free days in zone 4a. The last frost comes by May 11 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 27.
Months with highs of 62–84° and lows of 40° or more: May, June, August and September.
Parks & trails →Of the yearly building losses FEMA expects in Northville from natural hazards, river flooding is the largest share (43%); heat waves, cold waves, winter storms and ice storms together are 30%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Northville and similar climates
TownRatings has no climate map of the towns around Northville yet.
Climates most like Northville’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 |
|---|---|---|---|---|
| Northville, SD | 4° | 84° | 21" | 43" |
| Bismarck, ND | 3° | 84° | 18" | 51" |
| Sidney, MT | 4° | 85° | 15" | 30" |
| Redwood Falls, MN | 6° | 83° | 29" | 44" |
| Sheldon, IA | 7° | 84° | 30" | 41" |
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 Northville averaged 0.7° warmer than the 1900s. The biggest change is in January (+3.0°).
A smaller shift than in 92% 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 Northville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Northville’s place among South Dakota’s.
Northville weather by month
Highs, lows and precipitation from NOAA’s grid at Northville’s center; snow, wet days and snow on the ground from Mellette 4 W, SD. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 23° | 4° | 0.5" | 8.5" | 6 | 1° – 28° |
| February | 28° | 8° | 0.6" | 7.8" | 6 | 2° – 30° |
| March | 41° | 20° | 0.9" | 5.6" | 6 | 19° – 44° |
| April | 56° | 32° | 1.9" | 5.4" | 8 | 35° – 51° |
| May | 69° | 44° | 3.2" | 0.0" | 11 | 52° – 64° |
| June | 79° | 55° | 3.6" | 0.0" | 11 | 62° – 72° |
| July | 84° | 60° | 3.3" | 0.0" | 9 | 64° – 78° |
| August | 82° | 57° | 2.2" | 0.0" | 8 | 64° – 74° |
| September | 74° | 48° | 2.1" | 0.0" | 7 | 54° – 66° |
| October | 59° | 34° | 2.0" | 0.9" | 7 | 40° – 51° |
| November | 42° | 21° | 0.7" | 5.9" | 5 | 19° – 41° |
| December | 28° | 9° | 0.6" | 9.3" | 6 | 5° – 27° |
| Year | 55° | 33° | 21.4" | 43.4" | 88 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from 1° to 28°. June is the most reliable, staying within 10°.
Where Northville’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 Northville’s center.
- Snow: Mellette 4 W, SD (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Mellette 4 W, SD, 0.2 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 Northville’s climate
What is the weather like in Northville?
A typical July afternoon reaches 84°, a January night drops to 4°, and about 43 inches of snow falls in a normal winter. Colder January nights than all but 142 U.S. towns; cooler July afternoons than 57% of U.S. towns.
How cold does it get in Northville in winter?
January nights average 4°. About 182 nights a year reach 32° or below and 39 reach 0° or below. In the coldest January of the last 30 years the month averaged 1°.
How much snow does Northville get?
About 43 inches in a normal winter at Mellette 4 W, SD, most of it in January and December.
How hot does it get in Northville?
July, with a typical high of 84° and a low of 60°. About 16 days a year reach 90° (Mellette 4 W, SD).
When is the first and last frost in Northville?
In half of years the last spring frost (32°) comes by May 11 and the first fall frost by September 27, about 137 frost-free days, at Mellette 4 W, SD.
What growing zone is Northville in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −26°.
What is the best time of year to visit Northville?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Northville getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 92% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Northville.
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.