Gallatin, Missouri climate: Normal weather by month, frost dates and records
Gallatin's normal year runs from 16°F January nights to 86°F July afternoons, with 40.8 inches of precipitation and 20 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.9°C, January lows of −9°C, July highs of 30°C, 1,037 mm of precipitation a year.
- NOAA stationGallatin (1 mi W)
- Station IDUSC00233102
- Location39.91°N 93.97°W
- Elevation921 ft (281 m)
- From the centerunder 1 mile
- Population1,852
On October 23, the normal high in Gallatin is 62°F and the normal low 40°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 Gallatin.
- Jan 34° 16°
- Feb 40° 20°
- Mar 52° 30°
- Apr 63° 40°
- May 73° 52°
- Jun 82° 62°
- Jul 86° 66°
- Aug 84° 63°
- Sep 77° 54°
- Oct 65° 42°
- Nov 50° 31°
- Dec 38° 20°
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 Gallatin each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 16°F. The most precipitation falls in June (5.63 in), the least in January (1.43 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 34°F | 16°F | 24.9°F | 1.43 | 6.2 | 5 | <1 | 29 | 9 h 40 min |
| February | 40°F | 20°F | 29.5°F | 1.78 | 5.6 | 5 | <1 | 25 | 10 h 40 min |
| March | 52°F | 30°F | 40.8°F | 2.52 | 1.6 | 7 | <1 | 19 | 11 h 50 min |
| April | 63°F | 40°F | 51.6°F | 3.59 | 0.3 | 9 | <1 | 6 | 13 h 10 min |
| May | 73°F | 52°F | 62.0°F | 5.60 | 0.0 | 11 | 1 | <1 | 14 h 20 min |
| June | 82°F | 62°F | 71.8°F | 5.63 | 0.0 | 10 | 5 | <1 | 15 h |
| July | 86°F | 66°F | 75.7°F | 4.39 | 0.0 | 9 | 12 | <1 | 14 h 50 min |
| August | 84°F | 63°F | 73.8°F | 4.22 | 0.0 | 8 | 9 | <1 | 13 h 50 min |
| September | 77°F | 54°F | 65.7°F | 4.53 | 0.0 | 7 | 3 | <1 | 12 h 30 min |
| October | 65°F | 42°F | 53.6°F | 3.31 | 0.0 | 8 | <1 | 4 | 11 h 10 min |
| November | 50°F | 31°F | 40.4°F | 2.03 | 1.0 | 6 | <1 | 17 | 10 h |
| December | 38°F | 20°F | 29.3°F | 1.80 | 4.9 | 6 | <1 | 28 | 9 h 20 min |
| Year (annual) | 62°F | 41°F | 51.6°F | 40.83 | 19.6 | 89 | 29 | 127 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 1°C | −9°C | −3.9°C | 36 mm | 16 cm |
| February | 4°C | −7°C | −1.4°C | 45 mm | 14 cm |
| March | 11°C | −1°C | 4.9°C | 64 mm | 4 cm |
| April | 17°C | 5°C | 10.9°C | 91 mm | 1 cm |
| May | 23°C | 11°C | 16.7°C | 142 mm | 0 cm |
| June | 28°C | 16°C | 22.1°C | 143 mm | 0 cm |
| July | 30°C | 19°C | 24.3°C | 112 mm | 0 cm |
| August | 29°C | 17°C | 23.2°C | 107 mm | 0 cm |
| September | 25°C | 12°C | 18.7°C | 115 mm | 0 cm |
| October | 18°C | 6°C | 12.0°C | 84 mm | 0 cm |
| November | 10°C | −1°C | 4.7°C | 52 mm | 3 cm |
| December | 3°C | −6°C | −1.5°C | 46 mm | 12 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00233102; 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 Gallatin?
Normal highs sit between 65°F and 85°F in May, June, 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 USC00233102.
When is the last frost in Gallatin?
In Gallatin, the last spring frost (32°F) comes after April 19 in half of years and after May 4 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 6 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 191 year in 10 after May 4; 9 in 10 after April 5
- First autumn frost, half of years before
- October 211 year in 10 before October 6; 9 in 10 before November 1
NOAA puts the median frost-free season at 184 days, and the season without a hard freeze (28°F) at 203 days.
A hard freeze (28°F) comes after April 7 in half of springs and before October 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Gallatin in zone 6a in ZIP code 64640, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Gallatin's NOAA station is in zone 6a: the coldest night of a typical year reaches −8°F (15 complete years).
Frost dates for every NOAA station in Missouri · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00233102; 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 Gallatin?
In a normal year in Gallatin, 29 days a year reach 90°F (2 of them 100°F or more), 127 nights fall to 32°F or colder and 89 days bring measurable precipitation.
- Days at 90°F or more
- 29a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 127a normal year
- Days that stay below freezing
- 35high of 32°F or less
- Days with 0.01 inch of precipitation
- 89a normal year
- Days with 1 inch of snow or more
- 6a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00233102.
How sunny is Gallatin?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Gallatin, 4.2 kWh per square metre a day. July is the sunniest month (83%) and January the cloudiest (68%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.1 |
| February | 70% | 2.9 |
| March | 68% | 3.8 |
| April | 71% | 5.0 |
| May | 73% | 5.7 |
| June | 80% | 6.4 |
| July | 83% | 6.5 |
| August | 81% | 5.6 |
| September | 82% | 4.8 |
| October | 75% | 3.3 |
| November | 73% | 2.4 |
| December | 68% | 1.8 |
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 Gallatin need?
A normal year in Gallatin brings 5,883 heating degree days, 10% more than the median U.S. place (5,373), and 1,031 cooling degree days, 14% more 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 3,461 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,243 | 0 |
| February | 994 | 0 |
| March | 754 | 2 |
| April | 413 | 9 |
| May | 156 | 65 |
| June | 14 | 218 |
| July | 2 | 335 |
| August | 5 | 278 |
| September | 88 | 109 |
| October | 370 | 15 |
| November | 737 | 0 |
| December | 1,108 | 0 |
| Year (annual) | 5,883 | 1,031 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00233102. 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 Gallatin's climate compare?
Gallatin is warmer than 8 of the other 133 places with their own NOAA record in Missouri, and wetter than 31. Across the 7,247 U.S. stations with normals, its annual mean of 51.6°F is warmer than 48%.
In the Köppen classification computed from these normals, Gallatin is Dfa: continental, 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 Gallatin share this climate record?
6 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.
- Jamesport, MO567 people · 10 mi NE
- Pattonsburg, MO337 people · 13 mi NW
- Lake Viking, MO329 people · 5 mi W
- Winston, MO232 people · 10 mi W
- Altamont, MO171 people · 6 mi W
- Jameson, MO73 people · 7 mi N
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 Gallatin's climate
What is the coldest month in Gallatin?
January, with a normal high of 34°F and a normal low of 16°F. The warmest is July (86°F by day, 66°F at night).
Does it snow in Gallatin?
Yes: 20 inches in a normal year, falling on 9 days with 0.1 inch or more, the most in January (6.2 inches).
What is the rainiest month in Gallatin?
June, with 5.63 in of precipitation in a normal year; the driest is January with 1.43 in.
What plant hardiness zone is Gallatin in?
The USDA's 2023 map puts Gallatin in zone 6a in ZIP code 64640, the nearest ZIP area. By the same method at Gallatin's NOAA station, the coldest night of a typical year reaches −8°F (15 years, 1991-2020): zone 6a.
How late can frost come in Gallatin?
In half of years the last 32°F night comes after April 19; in one year in ten it comes after May 4. Waiting until May 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Missouri climateThe statewide normals and every place in the state
- Hamilton, MO12 miles from this station, 52.0°F a year
- Cameron, MO19 miles from this station, 52.5°F a year
- Amity, MO21 miles from this station, 51.6°F a year
- Chillicothe, MO22 miles from this station, 53.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made