Westhope, North Dakota climate: Normal weather by month, frost dates and records
Westhope's normal year runs from −2°F January nights to 82°F July afternoons, with 18.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 4.6°C, January lows of −19°C, July highs of 28°C, 476 mm of precipitation a year.
- NOAA stationWesthope
- Station IDUSC00329333
- Location48.91°N 101.02°W
- Elevation1,502 ft (458 m)
- Population369
On October 23, the normal high in Westhope is 50°F and the normal low 28°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Westhope.
- Jan 16° -2°
- Feb 21° 2°
- Mar 35° 15°
- Apr 55° 29°
- May 68° 42°
- Jun 77° 53°
- Jul 82° 57°
- Aug 82° 54°
- Sep 73° 45°
- Oct 55° 32°
- Nov 35° 17°
- Dec 21° 4°
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 Westhope each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of −2°F. The most precipitation falls in June (3.83 in), the least in February (0.50 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 16°F | −2°F | 7.1°F | 0.54 | 7 | <1 | 31 | 8 h 40 min |
| February | 21°F | 2°F | 11.7°F | 0.50 | 6 | <1 | 28 | 10 h 10 min |
| March | 35°F | 15°F | 24.9°F | 0.87 | 7 | <1 | 29 | 11 h 50 min |
| April | 55°F | 29°F | 42.0°F | 1.12 | 7 | <1 | 18 | 13 h 40 min |
| May | 68°F | 42°F | 54.9°F | 2.63 | 10 | 1 | 5 | 15 h 10 min |
| June | 77°F | 53°F | 64.6°F | 3.83 | 13 | 1 | <1 | 16 h 10 min |
| July | 82°F | 57°F | 69.2°F | 2.64 | 10 | 4 | <1 | 15 h 50 min |
| August | 82°F | 54°F | 68.1°F | 2.37 | 9 | 6 | <1 | 14 h 30 min |
| September | 73°F | 45°F | 58.9°F | 1.43 | 7 | 1 | 2 | 12 h 40 min |
| October | 55°F | 32°F | 43.1°F | 1.47 | 7 | <1 | 16 | 10 h 50 min |
| November | 35°F | 17°F | 25.9°F | 0.72 | 6 | <1 | 29 | 9 h 10 min |
| December | 21°F | 4°F | 12.4°F | 0.63 | 8 | <1 | 31 | 8 h 20 min |
| Year (annual) | 51°F | 29°F | 40.2°F | 18.75 | 96 | 12 | 190 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −9°C | −19°C | −13.8°C | 14 mm |
| February | −6°C | −17°C | −11.3°C | 13 mm |
| March | 1°C | −9°C | −3.9°C | 22 mm |
| April | 13°C | −1°C | 5.6°C | 28 mm |
| May | 20°C | 5°C | 12.7°C | 67 mm |
| June | 25°C | 11°C | 18.1°C | 97 mm |
| July | 28°C | 14°C | 20.7°C | 67 mm |
| August | 28°C | 12°C | 20.1°C | 60 mm |
| September | 23°C | 7°C | 14.9°C | 36 mm |
| October | 13°C | 0°C | 6.2°C | 37 mm |
| November | 2°C | −8°C | −3.4°C | 18 mm |
| December | −6°C | −15°C | −10.9°C | 16 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Upham (24 miles away), gets 49 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00329333; 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 Westhope?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (7).
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 USC00329333.
When is the last frost in Westhope?
In Westhope, the last spring frost (32°F) comes after May 14 in half of years and after May 26 in one year in ten; the first autumn frost comes before September 25 in half of years and before September 13 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 141 year in 10 after May 26; 9 in 10 after May 3
- First autumn frost, half of years before
- September 251 year in 10 before September 13; 9 in 10 before October 7
NOAA puts the median frost-free season at 133 days, and the season without a hard freeze (28°F) at 150 days.
A hard freeze (28°F) comes after May 5 in half of springs and before October 3 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Westhope in zone 3b in ZIP code 58793, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Westhope's NOAA station is in zone 3b: the coldest night of a typical year reaches −32°F (21 complete years).
Frost dates for every NOAA station in North Dakota · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00329333; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Westhope?
In a normal year in Westhope, 12 days a year reach 90°F, 190 nights fall to 32°F or colder and 96 days bring measurable precipitation.
- Days at 90°F or more
- 12a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 190a normal year
- Days that stay below freezing
- 100high of 32°F or less
- Days with 0.01 inch of precipitation
- 96a normal year
The highest temperature in this station's record (since 1904) is 111°F, on July 25, 1931; the lowest is −53°F, on January 12, 1916.
The wettest calendar year on that record is 2010, with 25.10 in; the snowiest season is 1948–49, with 78.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00329333; records: ACIS (NOAA Regional Climate Centers), station USC00329333. Records use complete months only; a month missing more than three days is left out.
How sunny is Westhope?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Westhope, 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 Westhope need?
A normal year in Westhope brings 9,401 heating degree days, 75% more than the median U.S. place (5,373), and 416 cooling degree days, 54% 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 2,170 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,795 | 0 |
| February | 1,492 | 0 |
| March | 1,241 | 0 |
| April | 692 | 1 |
| May | 325 | 14 |
| June | 87 | 75 |
| July | 26 | 155 |
| August | 41 | 136 |
| September | 219 | 35 |
| October | 680 | 1 |
| November | 1,171 | 0 |
| December | 1,630 | 0 |
| Year (annual) | 9,401 | 416 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00329333. 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 Westhope's climate compare?
Westhope is warmer than 31 of the other 91 places with their own NOAA record in North Dakota, and wetter than 33. Across the 7,247 U.S. stations with normals, its annual mean of 40.2°F is warmer than 6%.
In the Köppen classification computed from these normals, Westhope is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Westhope share this climate record?
3 places have no NOAA station with 1991-2020 normals of their 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.
- Maxbass, ND87 people · 14 mi SW
- Landa, ND38 people · 5 mi E
- Antler, ND22 people · 13 mi W
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 Westhope's climate
What is the coldest month in Westhope?
January, with a normal high of 16°F and a normal low of −2°F. The warmest is July (82°F by day, 57°F at night).
Does it snow in Westhope?
Yes. NOAA publishes no 1991-2020 snowfall normal for Westhope's NOAA station; the nearest record that keeps one, Upham (24 miles away), records 49 inches of snow in a normal year.
What is the rainiest month in Westhope?
June, with 3.83 in of precipitation in a normal year; the driest is February with 0.50 in.
What plant hardiness zone is Westhope in?
The USDA's 2023 map puts Westhope in zone 3b in ZIP code 58793, the nearest ZIP area. By the same method at Westhope's NOAA station, the coldest night of a typical year reaches −32°F (21 years, 1991-2020): zone 3b.
How late can frost come in Westhope?
In half of years the last 32°F night comes after May 14; in one year in ten it comes after May 26. Waiting until May 26 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
- Upham, ND24 miles from this station, 39.5°F a year
- Mohall, ND25 miles from this station, 38.3°F a year
- Bottineau, ND27 miles from this station, 38.6°F a year
- Lake Metigoshe State Park, ND32 miles from this station, 37.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made