Charmany Farm, Wisconsin climate: Climate normals at a NOAA weather station
Charmany Farm's normal year runs from 10°F January nights to 82°F July afternoons, with 39.2 inches of precipitation and 39 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.0°C, January lows of −12°C, July highs of 28°C, 997 mm of precipitation a year.
- NOAA stationCharmany Farm
- Station IDUSC00471416
- Location43.06°N 89.48°W
- Elevation1,046 ft (319 m)
On October 23, the normal high in Charmany Farm is 57°F and the normal low 37°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Charmany Farm.
- Jan 27° 10°
- Feb 31° 13°
- Mar 43° 24°
- Apr 56° 35°
- May 68° 47°
- Jun 78° 58°
- Jul 82° 62°
- Aug 80° 60°
- Sep 73° 52°
- Oct 60° 39°
- Nov 45° 27°
- Dec 32° 16°
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 Charmany Farm each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 10°F. The most precipitation falls in June (5.51 in), the least in January (1.50 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 27°F | 10°F | 18.1°F | 1.50 | 10.1 | 8 | <1 | 30 | 9 h 20 min |
| February | 31°F | 13°F | 21.7°F | 1.60 | 10.6 | 8 | <1 | 27 | 10 h 30 min |
| March | 43°F | 24°F | 33.1°F | 2.35 | 5.5 | 9 | <1 | 24 | 11 h 50 min |
| April | 56°F | 35°F | 45.5°F | 4.14 | 1.6 | 13 | <1 | 10 | 13 h 20 min |
| May | 68°F | 47°F | 57.6°F | 4.57 | 0.0 | 14 | <1 | <1 | 14 h 40 min |
| June | 78°F | 58°F | 67.8°F | 5.51 | 0.0 | 12 | 2 | <1 | 15 h 20 min |
| July | 82°F | 62°F | 71.7°F | 4.72 | 0.0 | 10 | 3 | <1 | 15 h |
| August | 80°F | 60°F | 69.8°F | 4.11 | 0.0 | 10 | 2 | <1 | 14 h |
| September | 73°F | 52°F | 62.0°F | 3.59 | 0.0 | 10 | 1 | <1 | 12 h 30 min |
| October | 60°F | 39°F | 49.5°F | 2.94 | 0.3 | 10 | <1 | 5 | 11 h 10 min |
| November | 45°F | 27°F | 35.8°F | 2.25 | 2.2 | 8 | <1 | 20 | 9 h 50 min |
| December | 32°F | 16°F | 24.1°F | 1.96 | 8.2 | 9 | <1 | 29 | 9 h |
| Year (annual) | 56°F | 37°F | 46.4°F | 39.24 | 38.5 | 121 | 7 | 146 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −3°C | −12°C | −7.7°C | 38 mm | 26 cm |
| February | −1°C | −11°C | −5.7°C | 41 mm | 27 cm |
| March | 6°C | −5°C | 0.6°C | 60 mm | 14 cm |
| April | 13°C | 2°C | 7.5°C | 105 mm | 4 cm |
| May | 20°C | 8°C | 14.2°C | 116 mm | 0 cm |
| June | 26°C | 14°C | 19.9°C | 140 mm | 0 cm |
| July | 28°C | 17°C | 22.1°C | 120 mm | 0 cm |
| August | 26°C | 16°C | 21.0°C | 104 mm | 0 cm |
| September | 23°C | 11°C | 16.7°C | 91 mm | 0 cm |
| October | 15°C | 4°C | 9.7°C | 75 mm | 1 cm |
| November | 7°C | −3°C | 2.1°C | 57 mm | 6 cm |
| December | 0°C | −9°C | −4.4°C | 50 mm | 21 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00471416; 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 Charmany Farm?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (10).
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 USC00471416.
When is the last frost at Charmany Farm?
In Charmany Farm, the last spring frost (32°F) comes after April 28 in half of years and after May 11 in one year in ten; the first autumn frost comes before October 15 in half of years and before September 29 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 281 year in 10 after May 11; 9 in 10 after April 14
- First autumn frost, half of years before
- October 151 year in 10 before September 29; 9 in 10 before October 29
NOAA puts the median frost-free season at 169 days, and the season without a hard freeze (28°F) at 190 days.
A hard freeze (28°F) comes after April 17 in half of springs and before October 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Charmany Farm in zone 5b in ZIP code 53705, 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 5b: the coldest night of a typical year reaches −13°F (23 complete years).
Frost dates for every NOAA station in Wisconsin · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00471416; 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 Charmany Farm?
In a normal year in Charmany Farm, 7 days a year reach 90°F, 146 nights fall to 32°F or colder and 121 days bring measurable precipitation.
- Days at 90°F or more
- 7a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 146a normal year
- Days that stay below freezing
- 63high of 32°F or less
- Days with 0.01 inch of precipitation
- 121a normal year
- Days with 1 inch of snow or more
- 13a normal year
The highest temperature in this station's record (since 1959) is 103°F, on July 7, 2012; the lowest is −34°F, on January 19, 1994.
The wettest calendar year on that record is 2010, with 45.91 in; the snowiest season is 2007–08, with 78.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00471416; records: ACIS (NOAA Regional Climate Centers), station USC00471416. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Charmany Farm?
Over a year 72% of the sunlight that would reach the ground under clear skies gets through the clouds at Charmany Farm, 3.9 kWh per square metre a day. July is the sunniest month (80%) and December the cloudiest (60%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 66% | 1.7 |
| February | 73% | 2.8 |
| March | 72% | 3.8 |
| April | 67% | 4.6 |
| May | 70% | 5.5 |
| June | 75% | 6.1 |
| July | 80% | 6.2 |
| August | 78% | 5.3 |
| September | 77% | 4.2 |
| October | 68% | 2.8 |
| November | 66% | 1.8 |
| December | 60% | 1.3 |
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 many heating and cooling degree days does Charmany Farm record?
A normal year at Charmany Farm brings 7,360 heating degree days, 37% more than the median U.S. place (5,373), and 614 cooling degree days, 32% fewer 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 2,645 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,455 | 0 |
| February | 1,211 | 0 |
| March | 990 | 1 |
| April | 585 | 2 |
| May | 260 | 31 |
| June | 49 | 131 |
| July | 9 | 216 |
| August | 20 | 169 |
| September | 149 | 59 |
| October | 486 | 6 |
| November | 876 | 0 |
| December | 1,269 | 0 |
| Year (annual) | 7,360 | 614 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00471416. 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 Charmany Farm been warmer than normal?
Over 33 complete years from 1965 to 2017, the station's annual mean temperature rose at a fitted 3.9°F per century (+0.22°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Charmany Farm's climate compare?
Charmany Farm is warmer than 116 of the 165 places with their own NOAA record in Wisconsin, and wetter than 152. Across the 7,247 U.S. stations with normals, its annual mean of 46.4°F is warmer than 25%.
In the Köppen classification computed from these normals, Charmany Farm 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 Charmany Farm 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.
- Middleton, WI22,566 people · 3 mi N
- Verona, WI16,825 people · 6 mi SW
- Cross Plains, WI4,180 people · 9 mi NW
- Shorewood Hills, WI2,182 people · 2 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 Charmany Farm's climate
What is the coldest month at Charmany Farm?
January, with a normal high of 27°F and a normal low of 10°F. The warmest is July (82°F by day, 62°F at night).
Does it snow at Charmany Farm?
Yes: 39 inches in a normal year, falling on 22 days with 0.1 inch or more, the most in February (10.6 inches).
What is the rainiest month at Charmany Farm?
June, with 5.51 in of precipitation in a normal year; the driest is January with 1.50 in.
What plant hardiness zone is Charmany Farm in?
The USDA's 2023 map puts Charmany Farm in zone 5b in ZIP code 53705, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −13°F (23 years, 1991-2020): zone 5b.
How late can frost come at Charmany Farm?
In half of years the last 32°F night comes after April 28; in one year in ten it comes after May 11. Waiting until May 11 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Wisconsin climateThe statewide normals and every place in the state
- Uw Arboretum - Madison, WI3 miles from this station, 47.2°F a year
- Madison, WI9 miles from this station, 47.0°F a year
- Stoughton, WI17 miles from this station, 46.6°F a year
- Arlington, WI18 miles from this station, 46.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made