Cashton, Wisconsin climate: Normal weather by month, frost dates and records
Cashton's normal year runs from 11°F January nights to 81°F July afternoons, with 35.0 inches of precipitation and 55 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.9°C, January lows of −12°C, July highs of 27°C, 889 mm of precipitation a year.
- NOAA stationCashton
- Station IDUSC00471280
- Location43.74°N 90.78°W
- Elevation1,370 ft (418 m)
- From the centerunder 1 mile
- Population1,157
On October 23, the normal high in Cashton is 54°F and the normal low 38°F, and the chance of measurable rain or snow is 31%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Cashton.
- Jan 24° 11°
- Feb 29° 14°
- Mar 41° 25°
- Apr 56° 37°
- May 68° 48°
- Jun 77° 59°
- Jul 81° 63°
- Aug 79° 61°
- Sep 71° 53°
- Oct 57° 41°
- Nov 42° 28°
- Dec 29° 17°
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 Cashton each month?
July is the warmest month, with normal highs of 81°F; January the coldest, with normal lows of 11°F. The most precipitation falls in June (4.72 in), the least in February (0.86 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 24°F | 11°F | 17.3°F | 1.14 | 15.4 | 8 | <1 | 31 | 9 h 20 min |
| February | 29°F | 14°F | 21.6°F | 0.86 | 11.5 | 5 | <1 | 27 | 10 h 30 min |
| March | 41°F | 25°F | 33.2°F | 1.51 | 9.9 | 8 | <1 | 24 | 11 h 50 min |
| April | 56°F | 37°F | 46.5°F | 3.54 | 3.8 | 11 | <1 | 10 | 13 h 20 min |
| May | 68°F | 48°F | 58.3°F | 4.44 | 0.1 | 13 | <1 | 1 | 14 h 40 min |
| June | 77°F | 59°F | 67.9°F | 4.72 | 0.0 | 11 | 1 | <1 | 15 h 30 min |
| July | 81°F | 63°F | 71.6°F | 4.58 | 0.0 | 11 | 2 | <1 | 15 h 10 min |
| August | 79°F | 61°F | 69.7°F | 4.10 | 0.0 | 10 | 1 | <1 | 14 h |
| September | 71°F | 53°F | 62.1°F | 3.73 | 0.0 | 10 | <1 | <1 | 12 h 30 min |
| October | 57°F | 41°F | 48.9°F | 3.15 | 0.2 | 10 | <1 | 5 | 11 h 10 min |
| November | 42°F | 28°F | 34.7°F | 1.95 | 5.4 | 9 | <1 | 21 | 9 h 40 min |
| December | 29°F | 17°F | 23.1°F | 1.28 | 8.2 | 8 | <1 | 30 | 9 h |
| Year (annual) | 55°F | 38°F | 46.2°F | 35.00 | 54.5 | 114 | 5 | 148 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −5°C | −12°C | −8.2°C | 29 mm | 39 cm |
| February | −2°C | −10°C | −5.8°C | 22 mm | 29 cm |
| March | 5°C | −4°C | 0.7°C | 38 mm | 25 cm |
| April | 14°C | 3°C | 8.1°C | 90 mm | 10 cm |
| May | 20°C | 9°C | 14.6°C | 113 mm | 0 cm |
| June | 25°C | 15°C | 19.9°C | 120 mm | 0 cm |
| July | 27°C | 17°C | 22.0°C | 116 mm | 0 cm |
| August | 26°C | 16°C | 20.9°C | 104 mm | 0 cm |
| September | 22°C | 12°C | 16.7°C | 95 mm | 0 cm |
| October | 14°C | 5°C | 9.4°C | 80 mm | 1 cm |
| November | 5°C | −2°C | 1.5°C | 50 mm | 14 cm |
| December | −1°C | −8°C | −4.9°C | 33 mm | 21 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00471280; 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 Cashton?
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 USC00471280.
When is the last frost in Cashton?
In Cashton, the last spring frost (32°F) comes after April 27 in half of years and after May 11 in one year in ten; the first autumn frost comes before October 14 in half of years and before October 1 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 271 year in 10 after May 11; 9 in 10 after April 14
- First autumn frost, half of years before
- October 141 year in 10 before October 1; 9 in 10 before October 27
NOAA puts the median frost-free season at 170 days, and the season without a hard freeze (28°F) at 192 days.
A hard freeze (28°F) comes after April 17 in half of springs and before October 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Cashton in zone 5a in ZIP code 54619, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Cashton's NOAA station is in zone 5a: the coldest night of a typical year reaches −16°F (15 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 USC00471280; 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 Cashton?
In a normal year in Cashton, 5 days a year reach 90°F, 148 nights fall to 32°F or colder and 114 days bring measurable precipitation.
- Days at 90°F or more
- 5a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 148a normal year
- Days that stay below freezing
- 74high of 32°F or less
- Days with 0.01 inch of precipitation
- 114a normal year
- Days with 1 inch of snow or more
- 20a normal year
The highest temperature in this station's record (since 1949) is 102°F, on August 17, 1988; the lowest is −34°F, on January 15, 1972.
The wettest calendar year on that record is 1982, with 47.46 in; the snowiest season is 1996–97, with 95.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00471280; records: ACIS (NOAA Regional Climate Centers), station USC00471280. Records use complete months only; a month missing more than three days is left out.
How sunny is Cashton?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Cashton, 3.9 kWh per square metre a day. July is the sunniest month (80%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 1.8 |
| February | 75% | 2.9 |
| March | 72% | 3.9 |
| April | 67% | 4.6 |
| May | 70% | 5.5 |
| June | 74% | 6.1 |
| July | 80% | 6.2 |
| August | 78% | 5.3 |
| September | 77% | 4.2 |
| October | 69% | 2.8 |
| November | 67% | 1.8 |
| December | 62% | 1.4 |
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 Cashton need?
A normal year in Cashton brings 7,409 heating degree days, 38% more than the median U.S. place (5,373), and 612 cooling degree days, 33% 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 2,673 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,478 | 0 |
| February | 1,216 | 0 |
| March | 987 | 0 |
| April | 556 | 3 |
| May | 237 | 31 |
| June | 47 | 134 |
| July | 8 | 214 |
| August | 19 | 166 |
| September | 148 | 59 |
| October | 504 | 5 |
| November | 907 | 0 |
| December | 1,300 | 0 |
| Year (annual) | 7,409 | 612 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00471280. 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 Cashton's climate compare?
Cashton is warmer than 110 of the other 164 places with their own NOAA record in Wisconsin, and wetter than 86. Across the 7,247 U.S. stations with normals, its annual mean of 46.2°F is warmer than 24%.
In the Köppen classification computed from these normals, Cashton is Dfb: continental, no dry season, warm 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 Cashton 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.
- Norwalk, WI608 people · 10 mi NE
- Ontario, WI527 people · 9 mi E
- Wilton, WI523 people · 13 mi E
- Melvina, WI92 people · 4 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Cashton's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Cashton. This page uses Cashton; the other differs by site and elevation:
| Station | From the center | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Cashton (3 mi NNW) USC00471287 | 3 mi N | 939 ft | 44.9°F | 8°F | 80°F | 36.7 | – | May 6 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Cashton's climate
What is the coldest month in Cashton?
January, with a normal high of 24°F and a normal low of 11°F. The warmest is July (81°F by day, 63°F at night).
Does it snow in Cashton?
Yes: 55 inches in a normal year, falling on 31 days with 0.1 inch or more, the most in January (15.4 inches).
What is the rainiest month in Cashton?
June, with 4.72 in of precipitation in a normal year; the driest is February with 0.86 in.
What plant hardiness zone is Cashton in?
The USDA's 2023 map puts Cashton in zone 5a in ZIP code 54619, the nearest ZIP area. By the same method at Cashton's NOAA station, the coldest night of a typical year reaches −16°F (15 years, 1991-2020): zone 5a.
How late can frost come in Cashton?
In half of years the last 32°F night comes after April 27; 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
- Sparta, WI14 miles from this station, 44.6°F a year
- Viroqua, WI14 miles from this station, 43.7°F a year
- Hillsboro, WI23 miles from this station, 46.0°F a year
- La Crosse, WI25 miles from this station, 48.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made