Shakamak State Park, Indiana climate: Climate normals at a NOAA weather station
Shakamak State Park's normal year runs from 21°F January nights to 86°F July afternoons, with 47.2 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.4°C, January lows of −6°C, July highs of 30°C, 1,198 mm of precipitation a year.
- NOAA stationShakamak State Park
- Station IDUSC00127959
- Location39.16°N 87.24°W
- Elevation549 ft (167 m)
On October 23, the normal high in Shakamak State Park is 65°F and the normal low 43°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Shakamak State Park.
- Jan 38° 21°
- Feb 43° 24°
- Mar 53° 33°
- Apr 66° 44°
- May 75° 54°
- Jun 83° 63°
- Jul 86° 66°
- Aug 85° 65°
- Sep 79° 57°
- Oct 68° 45°
- Nov 54° 34°
- Dec 43° 26°
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 Shakamak State Park each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 21°F. The most precipitation falls in May (5.23 in), the least in February (2.76 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 38°F | 21°F | 29.4°F | 3.34 | – | <1 | 26 | 9 h 40 min |
| February | 43°F | 24°F | 33.3°F | 2.76 | – | <1 | 23 | 10 h 40 min |
| March | 53°F | 33°F | 43.2°F | 3.48 | – | <1 | 17 | 11 h 50 min |
| April | 66°F | 44°F | 55.0°F | 5.07 | – | <1 | 4 | 13 h 10 min |
| May | 75°F | 54°F | 64.5°F | 5.23 | – | <1 | <1 | 14 h 20 min |
| June | 83°F | 63°F | 72.8°F | 5.06 | – | 4 | <1 | 14 h 50 min |
| July | 86°F | 66°F | 76.0°F | 4.67 | – | 7 | <1 | 14 h 40 min |
| August | 85°F | 65°F | 74.7°F | 3.24 | – | 5 | <1 | 13 h 40 min |
| September | 79°F | 57°F | 68.2°F | 3.59 | – | 3 | <1 | 12 h 30 min |
| October | 68°F | 45°F | 56.6°F | 3.79 | – | <1 | 3 | 11 h 10 min |
| November | 54°F | 34°F | 44.1°F | 3.91 | – | <1 | 15 | 10 h |
| December | 43°F | 26°F | 34.4°F | 3.03 | – | <1 | 23 | 9 h 30 min |
| Year (annual) | 64°F | 44°F | 54.3°F | 47.17 | – | 19 | 113 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 3°C | −6°C | −1.4°C | 85 mm |
| February | 6°C | −5°C | 0.7°C | 70 mm |
| March | 12°C | 0°C | 6.2°C | 88 mm |
| April | 19°C | 7°C | 12.8°C | 129 mm |
| May | 24°C | 12°C | 18.1°C | 133 mm |
| June | 28°C | 17°C | 22.7°C | 129 mm |
| July | 30°C | 19°C | 24.4°C | 119 mm |
| August | 29°C | 18°C | 23.7°C | 82 mm |
| September | 26°C | 14°C | 20.1°C | 91 mm |
| October | 20°C | 7°C | 13.7°C | 96 mm |
| November | 12°C | 1°C | 6.7°C | 99 mm |
| December | 6°C | −3°C | 1.3°C | 77 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Farmersburg (10 miles away), gets 15 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00127959; 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 Shakamak State Park?
Normal highs sit between 65°F and 85°F in April, May, June, August, 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 USC00127959.
When is the last frost at Shakamak State Park?
In Shakamak State Park, the last spring frost (32°F) comes after April 14 in half of years and after May 1 in one year in ten; the first autumn frost comes before October 26 in half of years and before October 12 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 141 year in 10 after May 1; 9 in 10 after March 31
- First autumn frost, half of years before
- October 261 year in 10 before October 12; 9 in 10 before November 6
NOAA puts the median frost-free season at 193 days, and the season without a hard freeze (28°F) at 215 days.
A hard freeze (28°F) comes after April 1 in half of springs and before November 3 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Shakamak State Park in zone 6a in ZIP code 47845, the nearest ZIP area.
Frost dates for every NOAA station in Indiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00127959; 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 at Shakamak State Park?
In a normal year in Shakamak State Park, 19 days a year reach 90°F and 113 nights fall to 32°F or colder.
- Days at 90°F or more
- 19a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 113a normal year
- Days that stay below freezing
- 25high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00127959.
How sunny is it at Shakamak State Park?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds at Shakamak State Park, 4.0 kWh per square metre a day. August is the sunniest month (82%) and December the cloudiest (60%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 61% | 1.8 |
| February | 64% | 2.6 |
| March | 67% | 3.7 |
| April | 71% | 4.9 |
| May | 73% | 5.5 |
| June | 80% | 6.3 |
| July | 81% | 6.2 |
| August | 82% | 5.6 |
| September | 81% | 4.7 |
| October | 74% | 3.3 |
| November | 70% | 2.2 |
| December | 60% | 1.6 |
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 Shakamak State Park record?
A normal year at Shakamak State Park brings 5,043 heating degree days, 6% fewer than the median U.S. place (5,373), and 1,193 cooling degree days, 31% 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 3,846 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,102 | 0 |
| February | 888 | 0 |
| March | 680 | 3 |
| April | 322 | 20 |
| May | 115 | 98 |
| June | 12 | 248 |
| July | 1 | 340 |
| August | 2 | 304 |
| September | 53 | 151 |
| October | 290 | 28 |
| November | 630 | 2 |
| December | 949 | 0 |
| Year (annual) | 5,043 | 1,193 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00127959. 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 Shakamak State Park been warmer than normal?
2024 averaged 56.5°F, 2.2°F above the 1991-2020 normal of 54.3°F. 2 of the 3 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 54.0°F | −0.3°F | 44.64 |
| 2023 | 56.3°F | +2.0°F | – |
| 2024 | 56.5°F | +2.2°F | 44.38 |
Source: observed years: ACIS, station USC00127959. A year counts only with all twelve months complete.
How does Shakamak State Park's climate compare?
Shakamak State Park is warmer than 76 of the 99 places with their own NOAA record in Indiana, and wetter than 68. Across the 7,247 U.S. stations with normals, its annual mean of 54.3°F is warmer than 58%.
In the Köppen classification computed from these normals, Shakamak State Park 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 Shakamak State Park share this climate record?
13 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.
- Linton, IN5,281 people · 10 mi SE
- Jasonville, IN2,003 people · 2 mi E
- Worthington, IN1,406 people · 14 mi E
- Clay City, IN884 people · 11 mi NE
- Dugger, IN795 people · 6 mi S
- Hymera, IN661 people · 3 mi NW
- Lewis, IN583 people · 7 mi N
- Coalmont, IN290 people · 2 mi NE
- Vicksburg, IN185 people · 6 mi SE
- Coal City, IN138 people · 12 mi NE
- Midland, IN131 people · 4 mi SE
- Middlebury, IN126 people · 10 mi NE
- Cass, IN58 people · 5 mi S
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 Shakamak State Park's climate
What is the coldest month at Shakamak State Park?
January, with a normal high of 38°F and a normal low of 21°F. The warmest is July (86°F by day, 66°F at night).
Does it snow at Shakamak State Park?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Farmersburg (10 miles away), records 15 inches of snow in a normal year.
What is the rainiest month at Shakamak State Park?
May, with 5.23 in of precipitation in a normal year; the driest is February with 2.76 in.
What plant hardiness zone is Shakamak State Park in?
The USDA's 2023 map puts Shakamak State Park in zone 6a in ZIP code 47845, the nearest ZIP area.
How late can frost come at Shakamak State Park?
In half of years the last 32°F night comes after April 14; 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
- Indiana climateThe statewide normals and every place in the state
- Farmersburg, IN10 miles from this station, 54.6°F a year
- Terre Haute, IN21 miles from this station, 53.5°F a year
- Freelandville, IN21 miles from this station, 54.4°F a year
- Elnora, IN22 miles from this station, 55.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made