Saverton, Missouri climate: Normal weather by month, frost dates and records
Saverton's normal year runs from 21°F January nights to 89°F July afternoons, with 38.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.8°C, January lows of −6°C, July highs of 31°C, 977 mm of precipitation a year.
- NOAA stationSaverton Lock and Dam 22
- Station IDUSC00237578
- Location39.64°N 91.25°W
- Elevation472 ft (144 m)
- From the center1 miles
- Population (census place)49
On October 14, the normal high in Saverton is 69°F and the normal low 48°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Saverton.
- Jan 37° 21°
- Feb 42° 24°
- Mar 53° 33°
- Apr 65° 44°
- May 75° 55°
- Jun 85° 65°
- Jul 89° 69°
- Aug 87° 67°
- Sep 80° 59°
- Oct 68° 47°
- Nov 54° 36°
- Dec 42° 26°
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 Saverton each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 21°F. The most precipitation falls in May (4.68 in), the least in January (1.89 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 37°F | 21°F | 28.7°F | 1.89 | 6 | <1 | 27 | 9 h 40 min |
| February | 42°F | 24°F | 33.0°F | 2.03 | 6 | <1 | 23 | 10 h 40 min |
| March | 53°F | 33°F | 43.0°F | 2.71 | 9 | <1 | 16 | 11 h 50 min |
| April | 65°F | 44°F | 54.6°F | 3.88 | 10 | <1 | 3 | 13 h 10 min |
| May | 75°F | 55°F | 65.2°F | 4.68 | 12 | 1 | <1 | 14 h 20 min |
| June | 85°F | 65°F | 74.6°F | 4.39 | 8 | 8 | <1 | 15 h |
| July | 89°F | 69°F | 78.6°F | 4.05 | 8 | 13 | <1 | 14 h 40 min |
| August | 87°F | 67°F | 77.2°F | 3.52 | 7 | 11 | <1 | 13 h 50 min |
| September | 80°F | 59°F | 69.3°F | 3.76 | 7 | 4 | <1 | 12 h 30 min |
| October | 68°F | 47°F | 57.5°F | 2.93 | 8 | <1 | 1 | 11 h 10 min |
| November | 54°F | 36°F | 45.0°F | 2.59 | 7 | <1 | 12 | 10 h |
| December | 42°F | 26°F | 33.8°F | 2.05 | 7 | <1 | 24 | 9 h 20 min |
| Year (annual) | 65°F | 45°F | 55.0°F | 38.48 | 96 | 37 | 105 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 3°C | −6°C | −1.8°C | 48 mm |
| February | 6°C | −5°C | 0.6°C | 52 mm |
| March | 12°C | 1°C | 6.1°C | 69 mm |
| April | 18°C | 7°C | 12.6°C | 99 mm |
| May | 24°C | 13°C | 18.4°C | 119 mm |
| June | 29°C | 18°C | 23.7°C | 112 mm |
| July | 31°C | 20°C | 25.9°C | 103 mm |
| August | 31°C | 19°C | 25.1°C | 89 mm |
| September | 27°C | 15°C | 20.7°C | 96 mm |
| October | 20°C | 8°C | 14.2°C | 74 mm |
| November | 12°C | 2°C | 7.2°C | 66 mm |
| December | 5°C | −3°C | 1.0°C | 52 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Bowling Green (21 miles away), gets 16 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00237578; 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 Saverton?
Normal highs sit between 65°F and 85°F in April, May, June, 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 USC00237578.
When is the last frost in Saverton?
In Saverton, the last spring frost (32°F) comes after April 4 in half of years and after April 19 in one year in ten; the first autumn frost comes before November 4 in half of years and before October 23 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 41 year in 10 after April 19; 9 in 10 after March 20
- First autumn frost, half of years before
- November 41 year in 10 before October 23; 9 in 10 before November 18
NOAA puts the median frost-free season at 212 days, and the season without a hard freeze (28°F) at 233 days.
A hard freeze (28°F) comes after March 26 in half of springs and before November 14 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Saverton in zone 6b in ZIP code 63467. By the map's own method, the average of each year's coldest night over 1991-2020, Saverton's NOAA station is in zone 6b: the coldest night of a typical year reaches −4°F (19 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 USC00237578; 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 Saverton?
In a normal year in Saverton, 37 days a year reach 90°F (2 of them 100°F or more), 105 nights fall to 32°F or colder and 96 days bring measurable precipitation.
- Days at 90°F or more
- 37a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 105a normal year
- Days that stay below freezing
- 29high of 32°F or less
- Days with 0.01 inch of precipitation
- 96a normal year
The highest temperature in this station's record (since 1948) is 112°F, on August 16, 2007; the lowest is −22°F, on January 17, 1977.
The wettest calendar year on that record is 1949, with 50.05 in; the snowiest season is 1959–60, with 39.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00237578; records: ACIS (NOAA Regional Climate Centers), station USC00237578. Records use complete months only; a month missing more than three days is left out.
How sunny is Saverton?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Saverton, 4.2 kWh per square metre a day. July is the sunniest month (82%) and December the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 66% | 2.0 |
| February | 68% | 2.9 |
| March | 68% | 3.8 |
| April | 71% | 5.0 |
| May | 73% | 5.7 |
| June | 79% | 6.4 |
| July | 82% | 6.4 |
| August | 81% | 5.6 |
| September | 82% | 4.8 |
| October | 75% | 3.3 |
| November | 72% | 2.3 |
| December | 65% | 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 Saverton need?
A normal year in Saverton brings 5,027 heating degree days, 6% fewer than the median U.S. place (5,373), and 1,434 cooling degree days, 58% more than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,121 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,123 | 0 |
| February | 895 | 0 |
| March | 685 | 3 |
| April | 331 | 18 |
| May | 101 | 107 |
| June | 9 | 296 |
| July | 0 | 422 |
| August | 1 | 377 |
| September | 45 | 174 |
| October | 264 | 33 |
| November | 604 | 2 |
| December | 969 | 0 |
| Year (annual) | 5,027 | 1,434 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00237578. 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 Saverton's climate compare?
Saverton is warmer than 61 of the other 133 places with their own NOAA record in Missouri, and wetter than 9. Across the 7,247 U.S. stations with normals, its annual mean of 55.0°F is warmer than 60%.
In the Köppen classification computed from these normals, Saverton 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 Saverton share this climate record?
12 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.
- Barry, IL1,253 people · 12 mi E
- New London, MO977 people · 9 mi SW
- Hull, IL373 people · 6 mi NE
- Frankford, MO346 people · 11 mi S
- New Canton, IL324 people · 8 mi E
- Plainville, IL260 people · 11 mi N
- Kingston, IL197 people · 17 mi NE
- Kinderhook, IL183 people · 7 mi NE
- El Dara, IL62 people · 14 mi E
- Beverly, IL29 people · 18 mi NE
- Ashburn, MO0 people · 8 mi SE
- Richfield, IL0 people · 14 mi NE
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 Saverton's climate
What is the coldest month in Saverton?
January, with a normal high of 37°F and a normal low of 21°F. The warmest is July (89°F by day, 69°F at night).
Does it snow in Saverton?
Yes. NOAA publishes no 1991-2020 snowfall normal for Saverton's NOAA station; the nearest record that keeps one, Bowling Green (21 miles away), records 16 inches of snow in a normal year.
What is the rainiest month in Saverton?
May, with 4.68 in of precipitation in a normal year; the driest is January with 1.89 in.
What plant hardiness zone is Saverton in?
The USDA's 2023 map puts Saverton in zone 6b in ZIP code 63467. By the same method at Saverton's NOAA station, the coldest night of a typical year reaches −4°F (19 years, 1991-2020): zone 6b.
How late can frost come in Saverton?
In half of years the last 32°F night comes after April 4; in one year in ten it comes after April 19. Waiting until April 19 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Missouri climateThe statewide normals and every place in the state
- Hannibal, MO9 miles from this station, 53.0°F a year
- Bowling Green, MO21 miles from this station, 53.3°F a year
- Quincy, IL21 miles from this station, 53.0°F a year
- Pittsfield, IL24 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