Smithville, Oklahoma climate: Normal weather by month, frost dates and records
Smithville's normal year runs from 28°F January nights to 91°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.2°C, January lows of −2°C, July highs of 33°C.
- NOAA stationSmithville
- Station IDUSC00348285
- Location34.47°N 94.64°W
- Elevation822 ft (251 m)
- Population105
On October 23, the normal high in Smithville is 71°F and the normal low 45°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Smithville.
- Jan 51° 28°
- Feb 56° 29°
- Mar 64° 38°
- Apr 72° 45°
- May 78° 57°
- Jun 86° 64°
- Jul 91° 67°
- Aug 91° 65°
- Sep 84° 58°
- Oct 73° 47°
- Nov 62° 37°
- Dec 54° 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 Smithville each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 28°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 51°F | 28°F | 39.5°F | – | <1 | 22 | 10 h |
| February | 56°F | 29°F | 42.1°F | – | <1 | 18 | 11 h |
| March | 64°F | 38°F | 50.7°F | – | <1 | 10 | 11 h 50 min |
| April | 72°F | 45°F | 58.8°F | – | <1 | 3 | 13 h |
| May | 78°F | 57°F | 67.6°F | – | <1 | <1 | 14 h |
| June | 86°F | 64°F | 74.9°F | – | 5 | <1 | 14 h 30 min |
| July | 91°F | 67°F | 78.7°F | – | 17 | <1 | 14 h 20 min |
| August | 91°F | 65°F | 78.0°F | – | 18 | <1 | 13 h 30 min |
| September | 84°F | 58°F | 71.0°F | – | 7 | <1 | 12 h 30 min |
| October | 73°F | 47°F | 60.1°F | – | 1 | 3 | 11 h 20 min |
| November | 62°F | 37°F | 49.3°F | – | <1 | 11 | 10 h 20 min |
| December | 54°F | 28°F | 40.6°F | – | <1 | 20 | 9 h 50 min |
| Year (annual) | 72°F | 47°F | 59.3°F | – | 48 | 88 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 11°C | −2°C | 4.2°C |
| February | 13°C | −2°C | 5.6°C |
| March | 18°C | 3°C | 10.4°C |
| April | 22°C | 7°C | 14.9°C |
| May | 26°C | 14°C | 19.8°C |
| June | 30°C | 18°C | 23.8°C |
| July | 33°C | 19°C | 25.9°C |
| August | 33°C | 18°C | 25.6°C |
| September | 29°C | 14°C | 21.7°C |
| October | 23°C | 8°C | 15.6°C |
| November | 17°C | 3°C | 9.6°C |
| December | 12°C | −2°C | 4.8°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Battiest (16 miles away), gets 3 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00348285; 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 Smithville?
Normal highs sit between 65°F and 85°F in April, May, September and October.
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 USC00348285.
When is the last frost in Smithville?
In Smithville, the last spring frost (32°F) comes after April 9 in half of years and after April 24 in one year in ten; the first autumn frost comes before October 29 in half of years and before October 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
- April 91 year in 10 after April 24; 9 in 10 after March 23
- First autumn frost, half of years before
- October 291 year in 10 before October 14; 9 in 10 before November 11
NOAA puts the median frost-free season at 201 days, and the season without a hard freeze (28°F) at 223 days.
A hard freeze (28°F) comes after March 28 in half of springs and before November 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Smithville in zone 7b in ZIP code 74957, the nearest ZIP area.
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00348285; 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 Smithville?
In a normal year in Smithville, 48 days a year reach 90°F (6 of them 100°F or more) and 88 nights fall to 32°F or colder.
- Days at 90°F or more
- 48a normal year
- Days at 100°F or more
- 6a normal year
- Nights at 32°F or colder
- 88a normal year
- Days that stay below freezing
- 3high of 32°F or less
The highest temperature in this station's record (since 1888) is 115°F, on August 10, 1936; the lowest is −6°F, on January 18, 1930.
The wettest calendar year on that record is 1973, with 79.48 in; the snowiest season is 1941–42, with 18.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00348285; records: ACIS (NOAA Regional Climate Centers), station USC00348285. Records use complete months only; a month missing more than three days is left out.
How sunny is Smithville?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Smithville, 4.4 kWh per square metre a day. August is the sunniest month (82%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.6 |
| February | 64% | 3.0 |
| March | 68% | 4.1 |
| April | 71% | 5.1 |
| May | 72% | 5.6 |
| June | 80% | 6.4 |
| July | 82% | 6.3 |
| August | 82% | 5.8 |
| September | 80% | 4.9 |
| October | 76% | 3.8 |
| November | 72% | 2.8 |
| December | 69% | 2.3 |
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 Smithville need?
A normal year in Smithville brings 3,591 heating degree days, 33% fewer than the median U.S. place (5,373), and 1,534 cooling degree days, 69% 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 4,591 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 789 | 0 |
| February | 640 | 0 |
| March | 451 | 6 |
| April | 210 | 23 |
| May | 51 | 131 |
| June | 2 | 297 |
| July | 0 | 425 |
| August | 1 | 404 |
| September | 27 | 207 |
| October | 191 | 37 |
| November | 477 | 6 |
| December | 755 | 0 |
| Year (annual) | 3,591 | 1,534 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00348285. 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 Smithville's climate compare?
Smithville is warmer than 37 of the other 133 places with their own NOAA record in Oklahoma. Across the 7,247 U.S. stations with normals, its annual mean of 59.3°F is warmer than 73%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Smithville 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.
- Wickes, AR655 people · 21 mi SE
- Hatfield, AR349 people · 15 mi E
- Cove, AR328 people · 13 mi E
- Vandervoort, AR113 people · 17 mi E
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 Smithville's climate
What is the coldest month in Smithville?
January, with a normal high of 51°F and a normal low of 28°F. The warmest is July (91°F by day, 67°F at night).
Does it snow in Smithville?
Yes. NOAA publishes no 1991-2020 snowfall normal for Smithville's NOAA station; the nearest record that keeps one, Battiest (16 miles away), records 3 inches of snow in a normal year.
What plant hardiness zone is Smithville in?
The USDA's 2023 map puts Smithville in zone 7b in ZIP code 74957, the nearest ZIP area.
How late can frost come in Smithville?
In half of years the last 32°F night comes after April 9; in one year in ten it comes after April 24. Waiting until April 24 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oklahoma climateThe statewide normals and every place in the state
- Battiest, OK16 miles from this station, 59.5°F a year
- Mena, AR22 miles from this station, 59.1°F a year
- Broken Bow, OK29 miles from this station, 61.8°F a year
- De Queen, AR32 miles from this station, 63.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made