Amidon, North Dakota climate: Normal weather by month, frost dates and records
Amidon's normal year runs from 7°F January nights to 86°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.9°C, January lows of −14°C, July highs of 30°C.
- NOAA stationAmidon
- Station IDUSC00320209
- Location46.48°N 103.32°W
- Elevation2,910 ft (887 m)
- Population22
On October 23, the normal high in Amidon is 54°F and the normal low 29°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Amidon.
- Jan 29° 7°
- Feb 33° 11°
- Mar 44° 20°
- Apr 56° 31°
- May 67° 41°
- Jun 77° 51°
- Jul 86° 57°
- Aug 86° 55°
- Sep 75° 46°
- Oct 58° 33°
- Nov 44° 21°
- Dec 32° 11°
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 Amidon each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 7°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 29°F | 7°F | 17.8°F | – | <1 | 30 | 9 h |
| February | 33°F | 11°F | 22.4°F | – | <1 | 27 | 10 h 20 min |
| March | 44°F | 20°F | 32.1°F | – | <1 | 27 | 11 h 50 min |
| April | 56°F | 31°F | 43.4°F | – | <1 | 18 | 13 h 30 min |
| May | 67°F | 41°F | 53.7°F | – | <1 | 5 | 15 h |
| June | 77°F | 51°F | 63.7°F | – | 2 | <1 | 15 h 50 min |
| July | 86°F | 57°F | 71.1°F | – | 12 | <1 | 15 h 30 min |
| August | 86°F | 55°F | 70.2°F | – | 12 | <1 | 14 h 10 min |
| September | 75°F | 46°F | 60.1°F | – | 4 | 2 | 12 h 40 min |
| October | 58°F | 33°F | 45.3°F | – | <1 | 15 | 11 h |
| November | 44°F | 21°F | 32.2°F | – | <1 | 27 | 9 h 30 min |
| December | 32°F | 11°F | 21.8°F | – | <1 | 30 | 8 h 40 min |
| Year (annual) | 57°F | 32°F | 44.5°F | – | 31 | 181 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | −2°C | −14°C | −7.9°C |
| February | 1°C | −11°C | −5.3°C |
| March | 7°C | −7°C | 0.1°C |
| April | 13°C | −1°C | 6.3°C |
| May | 19°C | 5°C | 12.1°C |
| June | 25°C | 10°C | 17.6°C |
| July | 30°C | 14°C | 21.7°C |
| August | 30°C | 13°C | 21.2°C |
| September | 24°C | 8°C | 15.6°C |
| October | 14°C | 0°C | 7.4°C |
| November | 6°C | −6°C | 0.1°C |
| December | 0°C | −11°C | −5.7°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Bowman (20 miles away), gets 48 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00320209; 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 Amidon?
Normal highs sit between 65°F and 85°F in May, June 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 USC00320209.
When is the last frost in Amidon?
In Amidon, the last spring frost (32°F) comes after May 12 in half of years and after May 28 in one year in ten; the first autumn frost comes before September 29 in half of years and before September 14 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 121 year in 10 after May 28; 9 in 10 after May 2
- First autumn frost, half of years before
- September 291 year in 10 before September 14; 9 in 10 before October 10
NOAA puts the median frost-free season at 136 days, and the season without a hard freeze (28°F) at 154 days.
A hard freeze (28°F) comes after May 3 in half of springs and before October 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Amidon in zone 4b in ZIP code 58620, 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 USC00320209; 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 Amidon?
In a normal year in Amidon, 31 days a year reach 90°F (3 of them 100°F or more) and 181 nights fall to 32°F or colder.
- Days at 90°F or more
- 31a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 181a normal year
- Days that stay below freezing
- 59high of 32°F or less
The highest temperature in this station's record (since 1920) is 108°F, on July 25, 2003; the lowest is −40°F, on December 22, 1989.
The wettest calendar year on that record is 1971, with 24.77 in; the snowiest season is 1966–67, with 61.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00320209; records: ACIS (NOAA Regional Climate Centers), station USC00320209. Records use complete months only; a month missing more than three days is left out.
How sunny is Amidon?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Amidon, 4.1 kWh per square metre a day. July is the sunniest month (87%) and December the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 1.8 |
| February | 78% | 2.8 |
| March | 73% | 3.8 |
| April | 72% | 4.9 |
| May | 73% | 5.9 |
| June | 79% | 6.7 |
| July | 87% | 7.0 |
| August | 84% | 5.8 |
| September | 80% | 4.4 |
| October | 73% | 2.8 |
| November | 73% | 1.8 |
| 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 Amidon need?
A normal year in Amidon brings 7,995 heating degree days, 49% more than the median U.S. place (5,373), and 554 cooling degree days, 39% 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 2,346 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,462 | 0 |
| February | 1,193 | 0 |
| March | 1,020 | 0 |
| April | 649 | 1 |
| May | 361 | 10 |
| June | 112 | 73 |
| July | 25 | 216 |
| August | 34 | 194 |
| September | 202 | 57 |
| October | 613 | 3 |
| November | 983 | 0 |
| December | 1,341 | 0 |
| Year (annual) | 7,995 | 554 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00320209. 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 Amidon's climate compare?
Amidon is warmer than 90 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 44.5°F is warmer than 17%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Questions about Amidon's climate
What is the coldest month in Amidon?
January, with a normal high of 29°F and a normal low of 7°F. The warmest is July (86°F by day, 57°F at night).
Does it snow in Amidon?
Yes. NOAA publishes no 1991-2020 snowfall normal for Amidon's NOAA station; the nearest record that keeps one, Bowman (20 miles away), records 48 inches of snow in a normal year.
What plant hardiness zone is Amidon in?
The USDA's 2023 map puts Amidon in zone 4b in ZIP code 58620, the nearest ZIP area.
How late can frost come in Amidon?
In half of years the last 32°F night comes after May 12; in one year in ten it comes after May 28. Waiting until May 28 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
- Bowman, ND20 miles from this station, 42.3°F a year
- New England, ND22 miles from this station, 43.3°F a year
- Medora, ND29 miles from this station, 43.3°F a year
- Theodore Roosevelt Airport, ND33 miles from this station, 42.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made