Fullerton, North Dakota climate: Normal weather by month, frost dates and records
Fullerton's normal year runs from 2°F January nights to 82°F July afternoons, with 24.3 inches of precipitation and 37 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.1°C, January lows of −17°C, July highs of 28°C, 616 mm of precipitation a year.
- NOAA stationFullerton (1 mi ESE)
- Station IDUSC00323287
- Location46.16°N 98.40°W
- Elevation1,435 ft (437 m)
- Population57
On October 22, the normal high in Fullerton is 53°F and the normal low 32°F, and the chance of measurable rain or snow is 19%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Fullerton.
- Jan 22° 2°
- Feb 28° 6°
- Mar 40° 19°
- Apr 55° 31°
- May 68° 44°
- Jun 77° 55°
- Jul 82° 59°
- Aug 81° 56°
- Sep 72° 48°
- Oct 56° 34°
- Nov 39° 21°
- Dec 26° 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 Fullerton 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 (4.07 in), the least in January (0.62 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 22°F | 2°F | 12.2°F | 0.62 | 7.2 | 4 | <1 | 31 | 9 h |
| February | 28°F | 6°F | 16.8°F | 0.66 | 6.0 | 5 | <1 | 28 | 10 h 20 min |
| March | 40°F | 19°F | 29.4°F | 1.17 | 6.9 | 4 | <1 | 28 | 11 h 50 min |
| April | 55°F | 31°F | 43.2°F | 1.78 | 3.7 | 7 | <1 | 17 | 13 h 30 min |
| May | 68°F | 44°F | 56.1°F | 3.54 | 0.0 | 9 | <1 | 3 | 15 h |
| June | 77°F | 55°F | 66.2°F | 4.07 | 0.0 | 11 | 2 | <1 | 15 h 40 min |
| July | 82°F | 59°F | 70.5°F | 3.62 | 0.0 | 9 | 3 | <1 | 15 h 30 min |
| August | 81°F | 56°F | 68.4°F | 2.62 | 0.0 | 7 | 2 | <1 | 14 h 10 min |
| September | 72°F | 48°F | 59.5°F | 2.49 | 0.0 | 7 | 1 | 1 | 12 h 40 min |
| October | 56°F | 34°F | 45.3°F | 2.05 | 1.6 | 6 | <1 | 13 | 11 h |
| November | 39°F | 21°F | 29.6°F | 0.77 | 4.2 | 4 | <1 | 27 | 9 h 30 min |
| December | 26°F | 8°F | 17.2°F | 0.86 | 7.3 | 4 | <1 | 31 | 8 h 40 min |
| Year (annual) | 54°F | 32°F | 42.9°F | 24.25 | 36.9 | 77 | 8 | 178 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −5°C | −17°C | −11.0°C | 16 mm | 18 cm |
| February | −2°C | −14°C | −8.4°C | 17 mm | 15 cm |
| March | 5°C | −7°C | −1.4°C | 30 mm | 18 cm |
| April | 13°C | 0°C | 6.2°C | 45 mm | 9 cm |
| May | 20°C | 7°C | 13.4°C | 90 mm | 0 cm |
| June | 25°C | 13°C | 19.0°C | 103 mm | 0 cm |
| July | 28°C | 15°C | 21.4°C | 92 mm | 0 cm |
| August | 27°C | 14°C | 20.2°C | 67 mm | 0 cm |
| September | 22°C | 9°C | 15.3°C | 63 mm | 0 cm |
| October | 13°C | 1°C | 7.4°C | 52 mm | 4 cm |
| November | 4°C | −6°C | −1.3°C | 20 mm | 11 cm |
| December | −3°C | −13°C | −8.2°C | 22 mm | 19 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00323287; 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 Fullerton?
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 USC00323287.
When is the last frost in Fullerton?
In Fullerton, the last spring frost (32°F) comes after May 9 in half of years and after May 23 in one year in ten; the first autumn frost comes before September 28 in half of years and before September 17 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 23; 9 in 10 after April 27
- First autumn frost, half of years before
- September 281 year in 10 before September 17; 9 in 10 before October 11
NOAA puts the median frost-free season at 141 days, and the season without a hard freeze (28°F) at 158 days.
A hard freeze (28°F) comes after April 30 in half of springs and before October 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Fullerton in zone 4b in ZIP code 58441, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Fullerton's NOAA station is in zone 4a: the coldest night of a typical year reaches −26°F (27 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in North Dakota · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00323287; 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 Fullerton?
In a normal year in Fullerton, 8 days a year reach 90°F, 178 nights fall to 32°F or colder and 77 days bring measurable precipitation.
- Days at 90°F or more
- 8a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 178a normal year
- Days that stay below freezing
- 80high of 32°F or less
- Days with 0.01 inch of precipitation
- 77a normal year
- Days with 1 inch of snow or more
- 13a normal year
The highest temperature in this station's record (since 1898) is 113°F, on July 6, 1936; the lowest is −45°F, on February 8, 1994.
The wettest calendar year on that record is 1906, with 33.87 in; the snowiest season is 1993–94, with 81.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00323287; records: ACIS (NOAA Regional Climate Centers), station USC00323287. Records use complete months only; a month missing more than three days is left out.
How sunny is Fullerton?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Fullerton, 4.0 kWh per square metre a day. February is the sunniest month (84%) and November the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 81% | 1.9 |
| February | 84% | 3.0 |
| March | 77% | 4.0 |
| April | 73% | 5.0 |
| May | 72% | 5.7 |
| June | 76% | 6.4 |
| July | 84% | 6.6 |
| August | 82% | 5.5 |
| September | 78% | 4.2 |
| October | 70% | 2.7 |
| November | 70% | 1.7 |
| December | 70% | 1.3 |
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 Fullerton need?
A normal year in Fullerton brings 8,515 heating degree days, 58% more than the median U.S. place (5,373), and 489 cooling degree days, 46% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,337 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,637 | 0 |
| February | 1,348 | 0 |
| March | 1,104 | 0 |
| April | 655 | 1 |
| May | 298 | 22 |
| June | 64 | 100 |
| July | 16 | 187 |
| August | 33 | 140 |
| September | 203 | 38 |
| October | 614 | 2 |
| November | 1,062 | 0 |
| December | 1,482 | 0 |
| Year (annual) | 8,515 | 489 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00323287. 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.
Has Fullerton been warmer than normal lately?
2021 averaged 46.2°F, 3.3°F above the 1991-2020 normal of 42.9°F.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 46.2°F | +3.3°F | 25.23 | 34.4 |
Over 101 complete years from 1899 to 2021, the station's annual mean temperature rose at a fitted 2.5°F per century (+0.14°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00323287; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Fullerton's climate compare?
Fullerton is warmer than 78 of the other 91 places with their own NOAA record in North Dakota, and wetter than 74. Across the 7,247 U.S. stations with normals, its annual mean of 42.9°F is warmer than 12%.
In the Köppen classification computed from these normals, Fullerton 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 Fullerton share this climate record?
Monango 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.
- Monango, ND30 people · 9 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 Fullerton's climate
What is the coldest month in Fullerton?
January, with a normal high of 22°F and a normal low of 2°F. The warmest is July (82°F by day, 59°F at night).
Does it snow in Fullerton?
Yes: 37 inches in a normal year, falling on 16 days with 0.1 inch or more, the most in December (7.3 inches).
What is the rainiest month in Fullerton?
June, with 4.07 in of precipitation in a normal year; the driest is January with 0.62 in.
What plant hardiness zone is Fullerton in?
The USDA's 2023 map puts Fullerton in zone 4b in ZIP code 58441, the nearest ZIP area. By the same method at Fullerton's NOAA station, the coldest night of a typical year reaches −26°F (27 years, 1991-2020): zone 4a.
How late can frost come in Fullerton?
In half of years the last 32°F night comes after May 9; in one year in ten it comes after May 23. Waiting until May 23 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
- Ellendale, ND12 miles from this station, 43.2°F a year
- Oakes, ND15 miles from this station, 41.6°F a year
- La Moure, ND15 miles from this station, 42.3°F a year
- Edgeley, ND23 miles from this station, 42.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made