Granville, North Dakota climate: Normal weather by month, frost dates and records
Granville's normal year runs from 3°F January nights to 85°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.7°C, January lows of −16°C, July highs of 29°C.
- NOAA stationGranville
- Station IDUSC00323686
- Location48.27°N 100.84°W
- Elevation1,510 ft (460 m)
- From the centerunder 1 mile
- Population231
On October 23, the normal high in Granville is 51°F and the normal low 31°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Granville.
- Jan 20° 3°
- Feb 25° 7°
- Mar 37° 19°
- Apr 54° 30°
- May 68° 43°
- Jun 76° 53°
- Jul 85° 58°
- Aug 83° 55°
- Sep 72° 47°
- Oct 56° 34°
- Nov 38° 20°
- Dec 24° 8°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Granville each month?
July is the warmest month, with normal highs of 85°F; January the coldest, with normal lows of 3°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 20°F | 3°F | 11.6°F | – | <1 | 31 | 8 h 40 min |
| February | 25°F | 7°F | 15.6°F | – | <1 | 28 | 10 h 10 min |
| March | 37°F | 19°F | 27.6°F | – | <1 | 28 | 11 h 50 min |
| April | 54°F | 30°F | 42.2°F | – | <1 | 18 | 13 h 40 min |
| May | 68°F | 43°F | 55.7°F | – | 1 | 3 | 15 h 10 min |
| June | 76°F | 53°F | 64.9°F | – | 2 | <1 | 16 h |
| July | 85°F | 58°F | 71.1°F | – | 4 | <1 | 15 h 40 min |
| August | 83°F | 55°F | 68.8°F | – | 7 | <1 | 14 h 20 min |
| September | 72°F | 47°F | 59.4°F | – | 1 | 2 | 12 h 40 min |
| October | 56°F | 34°F | 44.7°F | – | <1 | 16 | 11 h |
| November | 38°F | 20°F | 29.1°F | – | <1 | 28 | 9 h 20 min |
| December | 24°F | 8°F | 16.0°F | – | <1 | 31 | 8 h 20 min |
| Year (annual) | 53°F | 32°F | 42.2°F | – | 15 | 183 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | −7°C | −16°C | −11.3°C |
| February | −4°C | −14°C | −9.1°C |
| March | 3°C | −7°C | −2.4°C |
| April | 12°C | −1°C | 5.7°C |
| May | 20°C | 6°C | 13.2°C |
| June | 25°C | 12°C | 18.3°C |
| July | 29°C | 14°C | 21.7°C |
| August | 28°C | 13°C | 20.4°C |
| September | 22°C | 8°C | 15.2°C |
| October | 13°C | 1°C | 7.1°C |
| November | 3°C | −7°C | −1.6°C |
| December | −5°C | −13°C | −8.9°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Velva (15 miles away), gets 41 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00323686; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Granville?
Normal highs sit between 65°F and 85°F in May, June, July, August and September.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00323686.
When is the last frost in Granville?
In Granville, the last spring frost (32°F) comes after May 9 in half of years and after May 22 in one year in ten; the first autumn frost comes before October 1 in half of years and before September 19 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 91 year in 10 after May 22; 9 in 10 after April 28
- First autumn frost, half of years before
- October 11 year in 10 before September 19; 9 in 10 before October 14
NOAA puts the median frost-free season at 145 days, and the season without a hard freeze (28°F) at 163 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 9 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Granville in zone 4a in ZIP code 58741, the nearest ZIP area.
Frost dates for every NOAA station in North Dakota · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00323686; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Granville?
In a normal year in Granville, 15 days a year reach 90°F and 183 nights fall to 32°F or colder.
- Days at 90°F or more
- 15a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 183a normal year
- Days that stay below freezing
- 88high of 32°F or less
The highest temperature in this station's record (since 1907) is 114°F, on July 11, 1936; the lowest is −52°F, on February 15, 1936.
The wettest calendar year on that record is 1941, with 24.25 in; the snowiest season is 1969–70, with 55.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00323686; records: ACIS (NOAA Regional Climate Centers), station USC00323686. Records use complete months only; a month missing more than three days is left out.
How sunny is Granville?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Granville, 3.9 kWh per square metre a day. February is the sunniest month (86%) and November the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 83% | 1.7 |
| February | 86% | 2.9 |
| March | 79% | 4.0 |
| April | 73% | 4.9 |
| May | 73% | 5.8 |
| June | 75% | 6.2 |
| July | 84% | 6.6 |
| August | 82% | 5.4 |
| September | 76% | 4.0 |
| October | 70% | 2.5 |
| November | 69% | 1.5 |
| December | 70% | 1.2 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Granville need?
A normal year in Granville brings 8,755 heating degree days, 63% more than the median U.S. place (5,373), and 503 cooling degree days, 45% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,316 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,655 | 0 |
| February | 1,383 | 0 |
| March | 1,158 | 0 |
| April | 683 | 1 |
| May | 305 | 16 |
| June | 86 | 83 |
| July | 16 | 206 |
| August | 40 | 159 |
| September | 204 | 37 |
| October | 631 | 2 |
| November | 1,078 | 0 |
| December | 1,517 | 0 |
| Year (annual) | 8,755 | 503 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00323686. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Granville's climate compare?
Granville is warmer than 63 of the other 91 places with their own NOAA record in North Dakota. Across the 7,247 U.S. stations with normals, its annual mean of 42.2°F is warmer than 10%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Granville share this climate record?
Deering has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Deering, ND92 people · 13 mi NW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Granville's climate
What is the coldest month in Granville?
January, with a normal high of 20°F and a normal low of 3°F. The warmest is July (85°F by day, 58°F at night).
Does it snow in Granville?
Yes. NOAA publishes no 1991-2020 snowfall normal for Granville's NOAA station; the nearest record that keeps one, Velva (15 miles away), records 41 inches of snow in a normal year.
What plant hardiness zone is Granville in?
The USDA's 2023 map puts Granville in zone 4a in ZIP code 58741, the nearest ZIP area.
How late can frost come in Granville?
In half of years the last 32°F night comes after May 9; in one year in ten it comes after May 22. Waiting until May 22 leaves about a one-in-ten chance of a later frost.
Nearby and next
- North Dakota climateThe statewide normals and every place in the state
- Velva, ND15 miles from this station, 39.3°F a year
- Minot, ND20 miles from this station, 43.4°F a year
- Towner, ND22 miles from this station, 39.9°F a year
- Upham, ND25 miles from this station, 39.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made