Few U.S. towns have colder winter nights than Rock Hill Township
On a normal July day the thermometer tops out near 82°. Seasons differ by 80°, from the coldest nights to the warmest afternoons. Its yearly precipitation falls short of 90% of U.S. towns. Garden planting can start around May 11; autumn frost returns near September 30.
A year in Rock Hill Township at a glance
Each month’s typical high and low, and what it brings.
What stands out about Rock Hill Township’s climate
Compared with towns across the U.S., with Rock Hill Township’s place in North Dakota beside it.
What a year in Rock Hill Township feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 142 frost-free days a year
In half of years the last 32° night comes by May 11 and the first by September 30. Frost and day counts come from NOAA’s station at Wilton, ND, 17 miles from the town’s center, 140 ft higher.
The 2023 USDA map puts Rock Hill Township’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 19 inches of rain a year
June is the wettest month and February the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Rock Hill Township
96% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October 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 Wilton, ND.
Living with Rock Hill Township’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
142 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 30.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 25 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Rock Hill Township from natural hazards, river flooding is the largest share (36%); heat waves, cold waves, winter storms and ice storms together are 29%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Rock Hill Township and its neighbors
Every town next door is within a degree of Rock Hill Township in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Rock Hill Township averaged 1.4° warmer than the 1900s. The biggest change is in January (+4.4°).
A bigger shift than in 53% 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 Rock Hill Township compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Rock Hill Township’s place among North Dakota’s.
Rock Hill Township weather by month
Highs, lows and precipitation from NOAA’s grid at Rock Hill Township’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 20° | 2° | 0.5" | −2° – 26° |
| February | 24° | 5° | 0.5" | −2° – 28° |
| March | 37° | 17° | 0.8" | 16° – 41° |
| April | 53° | 29° | 1.2" | 32° – 49° |
| May | 66° | 41° | 2.7" | 49° – 60° |
| June | 75° | 52° | 3.4" | 58° – 68° |
| July | 82° | 57° | 3.0" | 62° – 74° |
| August | 81° | 54° | 2.3" | 62° – 72° |
| September | 71° | 45° | 1.8" | 52° – 63° |
| October | 55° | 32° | 1.4" | 35° – 49° |
| November | 37° | 19° | 0.6" | 15° – 39° |
| December | 25° | 7° | 0.7" | 4° – 26° |
| Year | 52° | 30° | 18.8" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from -2° to 28°. June is the most reliable, staying within 10°.
Where Rock Hill Township’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 Rock Hill Township’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Wilton, ND, 17 miles from the town’s center, 140 ft higher; 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 Rock Hill Township’s climate
What is the weather like in Rock Hill Township?
A typical July afternoon reaches 82°, a January night drops to 2°. Colder January nights than all but 72 U.S. towns; cooler July afternoons than 84% of U.S. towns.
How cold does it get in Rock Hill Township in winter?
January nights average 2°. About 183 nights a year reach 32° or below and 40 reach 0° or below. In the coldest January of the last 30 years the month averaged −2°.
How hot does it get in Rock Hill Township?
July, with a typical high of 82° and a low of 57°. About 9 days a year reach 90° (Wilton, ND).
When is the first and last frost in Rock Hill Township?
In half of years the last spring frost (32°) comes by May 11 and the first fall frost by September 30, about 142 frost-free days, at Wilton, ND.
What growing zone is Rock Hill Township 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 Rock Hill Township?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Rock Hill Township getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 53% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Rock Hill Township.
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.