Ash Grove, Missouri climate: Normal weather by month, frost dates and records
Ash Grove's normal year runs from 24°F January nights to 91°F July afternoons, with 43.5 inches of precipitation and 9 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.1°C, January lows of −5°C, July highs of 33°C, 1,104 mm of precipitation a year.
- NOAA stationAsh Grove (4 mi S)
- Station IDUSC00230304
- Location37.26°N 93.59°W
- Elevation1,129 ft (344 m)
- Population1,523
On October 22, the normal high in Ash Grove is 68°F and the normal low 43°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Ash Grove.
- Jan 44° 24°
- Feb 49° 27°
- Mar 59° 35°
- Apr 69° 45°
- May 77° 55°
- Jun 86° 64°
- Jul 91° 68°
- Aug 90° 66°
- Sep 83° 58°
- Oct 71° 46°
- Nov 58° 36°
- Dec 47° 28°
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 Ash Grove each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 24°F. The most precipitation falls in May (5.58 in), the least in January (2.07 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 44°F | 24°F | 33.8°F | 2.07 | 3.9 | 5 | <1 | 26 | 9 h 50 min |
| February | 49°F | 27°F | 37.9°F | 2.09 | 2.4 | 6 | <1 | 22 | 10 h 50 min |
| March | 59°F | 35°F | 47.1°F | 3.46 | 1.5 | 9 | <1 | 13 | 11 h 50 min |
| April | 69°F | 45°F | 56.8°F | 4.49 | 0.0 | 9 | <1 | 5 | 13 h 10 min |
| May | 77°F | 55°F | 66.2°F | 5.58 | 0.0 | 11 | 1 | <1 | 14 h 10 min |
| June | 86°F | 64°F | 75.0°F | 4.87 | 0.0 | 9 | 12 | <1 | 14 h 40 min |
| July | 91°F | 68°F | 79.3°F | 3.81 | 0.0 | 7 | 19 | <1 | 14 h 30 min |
| August | 90°F | 66°F | 78.0°F | 3.46 | 0.0 | 7 | 15 | <1 | 13 h 40 min |
| September | 83°F | 58°F | 70.4°F | 4.41 | 0.0 | 7 | 7 | <1 | 12 h 30 min |
| October | 71°F | 46°F | 58.2°F | 3.27 | 0.0 | 7 | <1 | 3 | 11 h 20 min |
| November | 58°F | 36°F | 46.7°F | 3.33 | 0.7 | 7 | <1 | 13 | 10 h 10 min |
| December | 47°F | 28°F | 37.6°F | 2.63 | 0.8 | 5 | <1 | 23 | 9 h 40 min |
| Year (annual) | 69°F | 46°F | 57.3°F | 43.47 | 9.3 | 87 | 55 | 104 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 7°C | −5°C | 1.0°C | 53 mm | 10 cm |
| February | 9°C | −3°C | 3.3°C | 53 mm | 6 cm |
| March | 15°C | 2°C | 8.4°C | 88 mm | 4 cm |
| April | 20°C | 7°C | 13.8°C | 114 mm | 0 cm |
| May | 25°C | 13°C | 19.0°C | 142 mm | 0 cm |
| June | 30°C | 18°C | 23.9°C | 124 mm | 0 cm |
| July | 33°C | 20°C | 26.3°C | 97 mm | 0 cm |
| August | 32°C | 19°C | 25.6°C | 88 mm | 0 cm |
| September | 28°C | 15°C | 21.3°C | 112 mm | 0 cm |
| October | 21°C | 8°C | 14.6°C | 83 mm | 0 cm |
| November | 14°C | 2°C | 8.2°C | 85 mm | 2 cm |
| December | 9°C | −2°C | 3.1°C | 67 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00230304; 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 Ash Grove?
Normal highs sit between 65°F and 85°F in April, May, September and October. 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 USC00230304.
When is the last frost in Ash Grove?
In Ash Grove, the last spring frost (32°F) comes after April 11 in half of years and after April 29 in one year in ten; the first autumn frost comes before October 24 in half of years and before October 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
- April 111 year in 10 after April 29; 9 in 10 after March 25
- First autumn frost, half of years before
- October 241 year in 10 before October 13; 9 in 10 before November 5
NOAA puts the median frost-free season at 196 days, and the season without a hard freeze (28°F) at 217 days.
A hard freeze (28°F) comes after March 31 in half of springs and before November 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Ash Grove in zone 6b in ZIP code 65604, the nearest ZIP area.
Frost dates for every NOAA station in Missouri · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00230304; 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 Ash Grove?
In a normal year in Ash Grove, 55 days a year reach 90°F (5 of them 100°F or more), 104 nights fall to 32°F or colder and 87 days bring measurable precipitation.
- Days at 90°F or more
- 55a normal year
- Days at 100°F or more
- 5a normal year
- Nights at 32°F or colder
- 104a normal year
- Days that stay below freezing
- 16high of 32°F or less
- Days with 0.01 inch of precipitation
- 87a normal year
- Days with 1 inch of snow or more
- 3a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00230304.
How sunny is Ash Grove?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Ash Grove, 4.3 kWh per square metre a day. July is the sunniest month (82%) and February the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.4 |
| February | 67% | 3.0 |
| March | 69% | 4.0 |
| April | 72% | 5.1 |
| May | 73% | 5.7 |
| June | 82% | 6.6 |
| July | 82% | 6.4 |
| August | 81% | 5.7 |
| September | 82% | 4.9 |
| October | 76% | 3.6 |
| November | 73% | 2.6 |
| December | 69% | 2.0 |
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 Ash Grove need?
A normal year in Ash Grove brings 4,345 heating degree days, 19% fewer than the median U.S. place (5,373), and 1,556 cooling degree days, 71% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,402 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 968 | 0 |
| February | 759 | 0 |
| March | 560 | 6 |
| April | 276 | 28 |
| May | 88 | 127 |
| June | 4 | 305 |
| July | 0 | 442 |
| August | 1 | 404 |
| September | 37 | 200 |
| October | 250 | 41 |
| November | 553 | 3 |
| December | 849 | 0 |
| Year (annual) | 4,345 | 1,556 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00230304. 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 Ash Grove been warmer than normal lately?
2025 averaged 58.6°F, 1.3°F above the 1991-2020 normal of 57.3°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 58.0°F | +0.8°F | – | 12.5 |
| 2022 | 56.7°F | −0.6°F | 45.81 | – |
| 2023 | 58.5°F | +1.2°F | 47.12 | 5.5 |
| 2024 | 59.2°F | +1.9°F | – | – |
| 2025 | 58.6°F | +1.3°F | 39.42 | – |
Source: observed years: ACIS, station USC00230304. A year counts only with all twelve months complete.
How does Ash Grove's climate compare?
Ash Grove is warmer than 113 of the other 133 places with their own NOAA record in Missouri, and wetter than 60. Across the 7,247 U.S. stations with normals, its annual mean of 57.3°F is warmer than 67%.
In the Köppen classification computed from these normals, Ash Grove is Cfa: temperate, no dry season, hot 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 Ash Grove share this climate record?
4 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.
- Walnut Grove, MO642 people · 11 mi N
- Everton, MO279 people · 8 mi NW
- Dadeville, MO237 people · 16 mi N
- Halltown, MO103 people · 5 mi SW
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 Ash Grove's climate
What is the coldest month in Ash Grove?
January, with a normal high of 44°F and a normal low of 24°F. The warmest is July (91°F by day, 68°F at night).
Does it snow in Ash Grove?
Yes: 9 inches in a normal year, falling on 4 days with 0.1 inch or more, the most in January (3.9 inches).
What is the rainiest month in Ash Grove?
May, with 5.58 in of precipitation in a normal year; the driest is January with 2.07 in.
What plant hardiness zone is Ash Grove in?
The USDA's 2023 map puts Ash Grove in zone 6b in ZIP code 65604, the nearest ZIP area.
How late can frost come in Ash Grove?
In half of years the last 32°F night comes after April 11; in one year in ten it comes after April 29. Waiting until April 29 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Missouri climateThe statewide normals and every place in the state
- Springfield, MO11 miles from this station, 57.4°F a year
- Billings, MO14 miles from this station, 56.3°F a year
- Springfield Wbo, MO17 miles from this station, 56.4°F a year
- Mount Vernon, MO21 miles from this station, 56.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made