Bonner Springs, Kansas climate: Normal weather by month, frost dates and records
Bonner Springs's normal year runs from 18°F January nights to 87°F July afternoons, with 40.5 inches of precipitation and 17 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.0°C, January lows of −8°C, July highs of 31°C, 1,029 mm of precipitation a year.
- NOAA stationBonner Springs
- Station IDUSC00140957
- Location39.06°N 94.90°W
- Elevation850 ft (259 m)
- Population7,832
On October 23, the normal high in Bonner Springs is 64°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 Bonner Springs.
- Jan 38° 18°
- Feb 43° 22°
- Mar 55° 31°
- Apr 65° 42°
- May 73° 53°
- Jun 83° 64°
- Jul 87° 67°
- Aug 86° 65°
- Sep 78° 57°
- Oct 67° 44°
- Nov 54° 32°
- Dec 42° 22°
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 Bonner Springs each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 18°F. The most precipitation falls in June (5.51 in), the least in January (1.18 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 38°F | 18°F | 28.0°F | 1.18 | 5.0 | 6 | <1 | 29 | 9 h 40 min |
| February | 43°F | 22°F | 32.5°F | 1.62 | 5.1 | 5 | <1 | 25 | 10 h 40 min |
| March | 55°F | 31°F | 43.2°F | 2.49 | 1.5 | 8 | <1 | 17 | 11 h 50 min |
| April | 65°F | 42°F | 53.0°F | 4.03 | 0.1 | 9 | <1 | 7 | 13 h 10 min |
| May | 73°F | 53°F | 63.1°F | 5.17 | 0.0 | 11 | <1 | 1 | 14 h 20 min |
| June | 83°F | 64°F | 73.2°F | 5.51 | 0.0 | 9 | 8 | <1 | 14 h 50 min |
| July | 87°F | 67°F | 77.3°F | 4.51 | 0.0 | 8 | 13 | <1 | 14 h 40 min |
| August | 86°F | 65°F | 75.6°F | 4.50 | 0.0 | 8 | 10 | <1 | 13 h 40 min |
| September | 78°F | 57°F | 67.3°F | 4.31 | 0.0 | 8 | 3 | <1 | 12 h 30 min |
| October | 67°F | 44°F | 55.2°F | 3.42 | 0.3 | 7 | <1 | 5 | 11 h 10 min |
| November | 54°F | 32°F | 42.6°F | 2.17 | 1.1 | 6 | <1 | 17 | 10 h |
| December | 42°F | 22°F | 31.9°F | 1.62 | 4.3 | 6 | <1 | 27 | 9 h 30 min |
| Year (annual) | 64°F | 43°F | 53.6°F | 40.53 | 17.4 | 91 | 34 | 128 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 3°C | −8°C | −2.2°C | 30 mm | 13 cm |
| February | 6°C | −6°C | 0.3°C | 41 mm | 13 cm |
| March | 13°C | 0°C | 6.2°C | 63 mm | 4 cm |
| April | 18°C | 5°C | 11.7°C | 102 mm | 0 cm |
| May | 23°C | 12°C | 17.3°C | 131 mm | 0 cm |
| June | 28°C | 18°C | 22.9°C | 140 mm | 0 cm |
| July | 31°C | 20°C | 25.2°C | 115 mm | 0 cm |
| August | 30°C | 18°C | 24.2°C | 114 mm | 0 cm |
| September | 25°C | 14°C | 19.6°C | 109 mm | 0 cm |
| October | 19°C | 7°C | 12.9°C | 87 mm | 1 cm |
| November | 12°C | 0°C | 5.9°C | 55 mm | 3 cm |
| December | 5°C | −6°C | −0.1°C | 41 mm | 11 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00140957; 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 Bonner Springs?
Normal highs sit between 65°F and 85°F in May, June, September and October. Of those, October 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 USC00140957.
When is the last frost in Bonner Springs?
In Bonner Springs, the last spring frost (32°F) comes after April 16 in half of years and after May 1 in one year in ten; the first autumn frost comes before October 22 in half of years and before October 9 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 161 year in 10 after May 1; 9 in 10 after April 1
- First autumn frost, half of years before
- October 221 year in 10 before October 9; 9 in 10 before November 2
NOAA puts the median frost-free season at 188 days, and the season without a hard freeze (28°F) at 206 days.
A hard freeze (28°F) comes after April 5 in half of springs and before October 31 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bonner Springs in zone 6b in ZIP code 66012.
Frost dates for every NOAA station in Kansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00140957; 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 Bonner Springs?
In a normal year in Bonner Springs, 34 days a year reach 90°F (3 of them 100°F or more), 128 nights fall to 32°F or colder and 91 days bring measurable precipitation.
- Days at 90°F or more
- 34a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 128a normal year
- Days that stay below freezing
- 25high of 32°F or less
- Days with 0.01 inch of precipitation
- 91a normal year
- Days with 1 inch of snow or more
- 6a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00140957.
How sunny is Bonner Springs?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bonner Springs, 4.2 kWh per square metre a day. July is the sunniest month (83%) and March the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.1 |
| February | 71% | 3.0 |
| March | 69% | 3.9 |
| April | 71% | 5.0 |
| May | 73% | 5.7 |
| June | 80% | 6.5 |
| July | 83% | 6.5 |
| August | 82% | 5.7 |
| September | 82% | 4.8 |
| October | 75% | 3.4 |
| November | 74% | 2.4 |
| December | 70% | 1.9 |
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 Bonner Springs need?
A normal year in Bonner Springs brings 5,358 heating degree days, 0% fewer than the median U.S. place (5,373), and 1,226 cooling degree days, 35% 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 3,769 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,147 | 0 |
| February | 911 | 0 |
| March | 681 | 3 |
| April | 370 | 11 |
| May | 139 | 79 |
| June | 7 | 253 |
| July | 1 | 383 |
| August | 2 | 332 |
| September | 70 | 139 |
| October | 331 | 25 |
| November | 673 | 1 |
| December | 1,026 | 0 |
| Year (annual) | 5,358 | 1,226 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00140957. 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 Bonner Springs been warmer than normal lately?
2021 averaged 54.9°F, 1.3°F above the 1991-2020 normal of 53.6°F.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 54.9°F | +1.3°F | 42.44 | 16.9 |
Source: observed years: ACIS, station USC00140957. A year counts only with all twelve months complete.
How does Bonner Springs's climate compare?
Bonner Springs is warmer than 37 of the other 136 places with their own NOAA record in Kansas, and wetter than 117. Across the 7,247 U.S. stations with normals, its annual mean of 53.6°F is warmer than 55%.
In the Köppen classification computed from these normals, Bonner Springs 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 Bonner Springs 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.
- Basehor, KS7,996 people · 5 mi N
- De Soto, KS6,579 people · 7 mi S
- Linwood, KS428 people · 9 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 Bonner Springs's climate
What is the coldest month in Bonner Springs?
January, with a normal high of 38°F and a normal low of 18°F. The warmest is July (87°F by day, 67°F at night).
Does it snow in Bonner Springs?
Yes: 17 inches in a normal year, falling on 12 days with 0.1 inch or more, the most in February (5.1 inches).
What is the rainiest month in Bonner Springs?
June, with 5.51 in of precipitation in a normal year; the driest is January with 1.18 in.
What plant hardiness zone is Bonner Springs in?
The USDA's 2023 map puts Bonner Springs in zone 6b in ZIP code 66012.
How late can frost come in Bonner Springs?
In half of years the last 32°F night comes after April 16; in one year in ten it comes after May 1. Waiting until May 1 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kansas climateThe statewide normals and every place in the state
- Overland Park, KS14 miles from this station, 55.1°F a year
- Kansas City Downtown Airport, MO17 miles from this station, 56.9°F a year
- Olathe, KS17 miles from this station, 55.1°F a year
- Lawrence, KS17 miles from this station, 55.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made