Johnson, Kansas climate: Climate normals at a NOAA weather station
Johnson's normal year runs from 20°F January nights to 93°F July afternoons, with 17.5 inches of precipitation and 22 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.2°C, January lows of −7°C, July highs of 34°C, 444 mm of precipitation a year.
- NOAA stationJohnson
- Station IDUSC00144114
- Location37.57°N 101.75°W
- Elevation3,330 ft (1,015 m)
On October 23, the normal high in Johnson is 68°F and the normal low 38°F, and the chance of measurable rain or snow is 12%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Johnson.
- Jan 47° 20°
- Feb 51° 23°
- Mar 60° 30°
- Apr 68° 39°
- May 78° 50°
- Jun 89° 61°
- Jul 93° 66°
- Aug 91° 64°
- Sep 84° 55°
- Oct 72° 41°
- Nov 58° 30°
- Dec 48° 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 at Johnson each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 20°F. The most precipitation falls in August (3.02 in), the least in February (0.34 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 47°F | 20°F | 33.8°F | 0.51 | 5.8 | 3 | <1 | 30 | 9 h 50 min |
| February | 51°F | 23°F | 36.8°F | 0.34 | 3.2 | 3 | <1 | 25 | 10 h 50 min |
| March | 60°F | 30°F | 45.2°F | 0.97 | 4.7 | 4 | <1 | 20 | 11 h 50 min |
| April | 68°F | 39°F | 53.5°F | 1.46 | 0.9 | 6 | 1 | 7 | 13 h 10 min |
| May | 78°F | 50°F | 64.0°F | 2.01 | 0.0 | 7 | 6 | <1 | 14 h 10 min |
| June | 89°F | 61°F | 74.8°F | 2.19 | 0.0 | 7 | 16 | <1 | 14 h 40 min |
| July | 93°F | 66°F | 79.5°F | 2.86 | 0.0 | 9 | 23 | <1 | 14 h 30 min |
| August | 91°F | 64°F | 77.2°F | 3.02 | 0.0 | 7 | 19 | <1 | 13 h 40 min |
| September | 84°F | 55°F | 69.6°F | 1.37 | 0.0 | 4 | 10 | <1 | 12 h 30 min |
| October | 72°F | 41°F | 56.4°F | 1.55 | 0.7 | 4 | 2 | 4 | 11 h 20 min |
| November | 58°F | 30°F | 44.2°F | 0.51 | 1.3 | 2 | <1 | 19 | 10 h 10 min |
| December | 48°F | 22°F | 34.5°F | 0.68 | 5.3 | 3 | <1 | 30 | 9 h 40 min |
| Year (annual) | 70°F | 42°F | 55.8°F | 17.47 | 21.9 | 58 | 76 | 136 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 9°C | −7°C | 1.0°C | 13 mm | 15 cm |
| February | 11°C | −5°C | 2.7°C | 9 mm | 8 cm |
| March | 16°C | −1°C | 7.3°C | 25 mm | 12 cm |
| April | 20°C | 4°C | 11.9°C | 37 mm | 2 cm |
| May | 26°C | 10°C | 17.8°C | 51 mm | 0 cm |
| June | 32°C | 16°C | 23.8°C | 56 mm | 0 cm |
| July | 34°C | 19°C | 26.4°C | 73 mm | 0 cm |
| August | 33°C | 18°C | 25.1°C | 77 mm | 0 cm |
| September | 29°C | 13°C | 20.9°C | 35 mm | 0 cm |
| October | 22°C | 5°C | 13.6°C | 39 mm | 2 cm |
| November | 15°C | −1°C | 6.8°C | 13 mm | 3 cm |
| December | 9°C | −6°C | 1.4°C | 17 mm | 13 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00144114; 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.
Which months are mildest at Johnson?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (4).
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 USC00144114.
When is the last frost at Johnson?
In Johnson, the last spring frost (32°F) comes after April 19 in half of years and after May 3 in one year in ten; the first autumn frost comes before October 23 in half of years and before October 10 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 3; 9 in 10 after April 5
- First autumn frost, half of years before
- October 231 year in 10 before October 10; 9 in 10 before November 5
NOAA puts the median frost-free season at 186 days, and the season without a hard freeze (28°F) at 206 days.
A hard freeze (28°F) comes after April 9 in half of springs and before November 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Johnson in zone 6b in ZIP code 67855, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 6b: the coldest night of a typical year reaches −3°F (24 complete years).
Frost dates for every NOAA station in Kansas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00144114; 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 at Johnson?
In a normal year in Johnson, 76 days a year reach 90°F (16 of them 100°F or more), 136 nights fall to 32°F or colder and 58 days bring measurable precipitation.
- Days at 90°F or more
- 76a normal year
- Days at 100°F or more
- 16a normal year
- Nights at 32°F or colder
- 136a normal year
- Days that stay below freezing
- 16high of 32°F or less
- Days with 0.01 inch of precipitation
- 58a normal year
- Days with 1 inch of snow or more
- 9a normal year
The highest temperature in this station's record (since 1995) is 110°F, on July 27, 2026; the lowest is −18°F, on February 15, 2021.
The wettest calendar year on that record is 2015, with 28.16 in; the snowiest season is 1997–98, with 43.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00144114; records: ACIS (NOAA Regional Climate Centers), station USC00144114. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Johnson?
Over a year 84% of the sunlight that would reach the ground under clear skies gets through the clouds at Johnson, 5.0 kWh per square metre a day. July is the sunniest month (90%) and February the cloudiest (76%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 2.8 |
| February | 76% | 3.5 |
| March | 80% | 4.9 |
| April | 80% | 6.0 |
| May | 83% | 6.9 |
| June | 89% | 7.5 |
| July | 90% | 7.3 |
| August | 88% | 6.5 |
| September | 88% | 5.4 |
| October | 83% | 4.1 |
| November | 83% | 3.1 |
| December | 79% | 2.5 |
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 many heating and cooling degree days does Johnson record?
A normal year at Johnson brings 4,773 heating degree days, 11% fewer than the median U.S. place (5,373), and 1,451 cooling degree days, 60% 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 4,089 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 967 | 0 |
| February | 788 | 0 |
| March | 615 | 1 |
| April | 356 | 9 |
| May | 124 | 93 |
| June | 11 | 305 |
| July | 1 | 452 |
| August | 2 | 380 |
| September | 48 | 186 |
| October | 292 | 26 |
| November | 626 | 1 |
| December | 944 | 0 |
| Year (annual) | 4,773 | 1,451 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00144114. 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.
Have recent years at Johnson been warmer than normal?
2025 averaged 56.4°F, 0.6°F above the 1991-2020 normal of 55.8°F. 2 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 55.6°F | −0.2°F | 13.82 | 3.0 |
| 2022 | 55.0°F | −0.8°F | 10.92 | 12.5 |
| 2023 | 55.5°F | −0.3°F | 23.18 | 7.0 |
| 2024 | 57.5°F | +1.7°F | 19.72 | 15.0 |
| 2025 | 56.4°F | +0.6°F | 26.34 | 8.0 |
Source: observed years: ACIS, station USC00144114. A year counts only with all twelve months complete.
How does Johnson's climate compare?
Johnson is warmer than 96 of the 137 places with their own NOAA record in Kansas, and wetter than 1. Across the 7,247 U.S. stations with normals, its annual mean of 55.8°F is warmer than 63%.
In the Köppen classification computed from these normals, Johnson is BSk: cold semi-arid steppe. 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 Johnson 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.
- Johnson City, KS1,459 people · 0 mi NE
- Big Bow, KS148 people · 11 mi E
- Manter, KS131 people · 8 mi W
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 Johnson's climate
What is the coldest month at Johnson?
January, with a normal high of 47°F and a normal low of 20°F. The warmest is July (93°F by day, 66°F at night).
Does it snow at Johnson?
Yes: 22 inches in a normal year, falling on 10 days with 0.1 inch or more, the most in January (5.8 inches).
What is the rainiest month at Johnson?
August, with 3.02 in of precipitation in a normal year; the driest is February with 0.34 in.
What plant hardiness zone is Johnson in?
The USDA's 2023 map puts Johnson in zone 6b in ZIP code 67855, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −3°F (24 years, 1991-2020): zone 6b.
How late can frost come at Johnson?
In half of years the last 32°F night comes after April 19; in one year in ten it comes after May 3. Waiting until May 3 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Kansas climateThe statewide normals and every place in the state
- Richfield, KS21 miles from this station, 55.5°F a year
- Ulysses, KS25 miles from this station, 54.0°F a year
- Syracuse, KS29 miles from this station, 53.4°F a year
- Walsh, CO33 miles from this station, 54.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made