Mayville, North Dakota climate: Normal weather by month, frost dates and records
Mayville's normal year runs from −4°F January nights to 80°F July afternoons, with 23.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 4.1°C, January lows of −20°C, July highs of 27°C, 607 mm of precipitation a year.
- NOAA stationMayville
- Station IDUSC00325660
- Location47.50°N 97.35°W
- Elevation983 ft (300 m)
- Population1,820
On October 23, the normal high in Mayville is 50°F and the normal low 29°F, and the chance of measurable rain or snow is 24%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Mayville.
- Jan 16° -4°
- Feb 21° 0°
- Mar 33° 13°
- Apr 51° 28°
- May 67° 41°
- Jun 76° 53°
- Jul 80° 57°
- Aug 79° 54°
- Sep 70° 44°
- Oct 54° 32°
- Nov 36° 17°
- Dec 22° 5°
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 Mayville each month?
July is the warmest month, with normal highs of 80°F; January the coldest, with normal lows of −4°F. The most precipitation falls in June (4.11 in), the least in February (0.53 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 16°F | −4°F | 6.2°F | 0.54 | 5 | <1 | 31 | 8 h 50 min |
| February | 21°F | 0°F | 10.3°F | 0.53 | 6 | <1 | 28 | 10 h 10 min |
| March | 33°F | 13°F | 23.2°F | 0.96 | 6 | <1 | 29 | 11 h 50 min |
| April | 51°F | 28°F | 39.7°F | 1.50 | 7 | <1 | 19 | 13 h 30 min |
| May | 67°F | 41°F | 53.6°F | 3.29 | 12 | 1 | 5 | 15 h |
| June | 76°F | 53°F | 64.7°F | 4.11 | 13 | 1 | <1 | 16 h |
| July | 80°F | 57°F | 68.4°F | 3.88 | 10 | 3 | <1 | 15 h 40 min |
| August | 79°F | 54°F | 66.5°F | 2.66 | 9 | 2 | <1 | 14 h 20 min |
| September | 70°F | 44°F | 57.2°F | 2.68 | 8 | 1 | 2 | 12 h 40 min |
| October | 54°F | 32°F | 43.1°F | 2.11 | 8 | <1 | 16 | 11 h |
| November | 36°F | 17°F | 26.8°F | 0.79 | 5 | <1 | 28 | 9 h 20 min |
| December | 22°F | 5°F | 13.4°F | 0.85 | 7 | <1 | 31 | 8 h 30 min |
| Year (annual) | 51°F | 28°F | 39.4°F | 23.90 | 95 | 7 | 189 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −9°C | −20°C | −14.3°C | 14 mm |
| February | −6°C | −18°C | −12.1°C | 13 mm |
| March | 1°C | −11°C | −4.9°C | 24 mm |
| April | 11°C | −2°C | 4.3°C | 38 mm |
| May | 19°C | 5°C | 12.0°C | 84 mm |
| June | 25°C | 12°C | 18.2°C | 104 mm |
| July | 27°C | 14°C | 20.2°C | 99 mm |
| August | 26°C | 12°C | 19.2°C | 68 mm |
| September | 21°C | 7°C | 14.0°C | 68 mm |
| October | 12°C | 0°C | 6.2°C | 54 mm |
| November | 2°C | −8°C | −2.9°C | 20 mm |
| December | −5°C | −15°C | −10.3°C | 22 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Colgate (23 miles away), gets 35 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00325660; 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 Mayville?
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 (8).
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 USC00325660.
When is the last frost in Mayville?
In Mayville, the last spring frost (32°F) comes after May 13 in half of years and after May 25 in one year in ten; the first autumn frost comes before September 27 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 131 year in 10 after May 25; 9 in 10 after April 30
- First autumn frost, half of years before
- September 271 year in 10 before September 14; 9 in 10 before October 9
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 4 in half of springs and before October 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Mayville in zone 4a in ZIP code 58257, 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 USC00325660; 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 Mayville?
In a normal year in Mayville, 7 days a year reach 90°F, 189 nights fall to 32°F or colder and 95 days bring measurable precipitation.
- Days at 90°F or more
- 7a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 189a normal year
- Days that stay below freezing
- 102high of 32°F or less
- Days with 0.01 inch of precipitation
- 95a normal year
The highest temperature in this station's record (since 1893) is 114°F, on July 11, 1936; the lowest is −41°F, on January 11, 1912.
The wettest calendar year on that record is 2019, with 34.51 in; the snowiest season is 1947–48, with 80.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00325660; records: ACIS (NOAA Regional Climate Centers), station USC00325660. Records use complete months only; a month missing more than three days is left out.
How sunny is Mayville?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Mayville, 3.8 kWh per square metre a day. February is the sunniest month (86%) and November the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 80% | 1.7 |
| February | 86% | 3.0 |
| March | 78% | 4.0 |
| April | 73% | 4.9 |
| May | 71% | 5.6 |
| June | 74% | 6.1 |
| July | 82% | 6.4 |
| August | 80% | 5.3 |
| September | 75% | 3.9 |
| October | 68% | 2.5 |
| November | 65% | 1.5 |
| December | 66% | 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 Mayville need?
A normal year in Mayville brings 9,628 heating degree days, 79% more than the median U.S. place (5,373), and 344 cooling degree days, 62% 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 2,010 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,822 | 0 |
| February | 1,533 | 0 |
| March | 1,296 | 0 |
| April | 761 | 0 |
| May | 367 | 14 |
| June | 84 | 75 |
| July | 28 | 132 |
| August | 53 | 100 |
| September | 257 | 21 |
| October | 682 | 2 |
| November | 1,146 | 0 |
| December | 1,599 | 0 |
| Year (annual) | 9,628 | 344 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00325660. 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 Mayville been warmer than normal lately?
2024 averaged 40.1°F, 0.7°F above the 1991-2020 normal of 39.4°F. 2 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 41.2°F | +1.8°F | 18.81 |
| 2022 | 36.8°F | −2.6°F | 26.48 |
| 2023 | 38.2°F | −1.2°F | 17.50 |
| 2024 | 40.1°F | +0.7°F | 22.56 |
Over 72 complete years from 1912 to 2024, the station's annual mean temperature rose at a fitted 1.6°F per century (+0.09°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00325660; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Mayville's climate compare?
Mayville is warmer than 21 of the other 91 places with their own NOAA record in North Dakota, and wetter than 70. Across the 7,247 U.S. stations with normals, its annual mean of 39.4°F is warmer than 5%.
In the Köppen classification computed from these normals, Mayville 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 Mayville 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.
- Hatton, ND716 people · 11 mi NW
- Portland, ND582 people · 1 mi W
- Clifford, ND31 people · 11 mi S
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 Mayville's climate
What is the coldest month in Mayville?
January, with a normal high of 16°F and a normal low of −4°F. The warmest is July (80°F by day, 57°F at night).
Does it snow in Mayville?
Yes. NOAA publishes no 1991-2020 snowfall normal for Mayville's NOAA station; the nearest record that keeps one, Colgate (23 miles away), records 35 inches of snow in a normal year.
What is the rainiest month in Mayville?
June, with 4.11 in of precipitation in a normal year; the driest is February with 0.53 in.
What plant hardiness zone is Mayville in?
The USDA's 2023 map puts Mayville in zone 4a in ZIP code 58257, the nearest ZIP area.
How late can frost come in Mayville?
In half of years the last 32°F night comes after May 13; in one year in ten it comes after May 25. Waiting until May 25 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
- Hillsboro, ND14 miles from this station, 42.6°F a year
- Colgate, ND23 miles from this station, 38.7°F a year
- Larimore, ND31 miles from this station, 39.7°F a year
- Grand Forks University (NWS), ND32 miles from this station, 40.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made