Sharpsburg, Maryland climate: Normal weather by month, frost dates and records
Sharpsburg's normal year runs from 21°F January nights to 86°F July afternoons, with 43.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.6°C, January lows of −6°C, July highs of 30°C, 1,105 mm of precipitation a year.
- NOAA stationSharpsburg (5 mi S)
- Station IDUSC00188207
- Location39.40°N 77.72°W
- Elevation400 ft (122 m)
- From the center4 miles
- Population561
On October 23, the normal high in Sharpsburg is 64°F and the normal low 39°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Sharpsburg.
- Jan 41° 21°
- Feb 44° 23°
- Mar 53° 29°
- Apr 65° 39°
- May 74° 49°
- Jun 82° 58°
- Jul 86° 62°
- Aug 85° 61°
- Sep 78° 54°
- Oct 67° 42°
- Nov 56° 32°
- Dec 45° 25°
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 Sharpsburg 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 (4.57 in), the least in February (2.41 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 41°F | 21°F | 31.2°F | 3.13 | – | <1 | 26 | 9 h 40 min |
| February | 44°F | 23°F | 33.6°F | 2.41 | – | <1 | 24 | 10 h 40 min |
| March | 53°F | 29°F | 40.7°F | 3.72 | – | <1 | 21 | 11 h 50 min |
| April | 65°F | 39°F | 51.7°F | 3.60 | – | <1 | 8 | 13 h 10 min |
| May | 74°F | 49°F | 61.2°F | 4.57 | – | 1 | 1 | 14 h 20 min |
| June | 82°F | 58°F | 70.1°F | 4.16 | – | 4 | <1 | 15 h |
| July | 86°F | 62°F | 74.2°F | 4.28 | – | 10 | <1 | 14 h 40 min |
| August | 85°F | 61°F | 72.9°F | 3.27 | – | 7 | <1 | 13 h 50 min |
| September | 78°F | 54°F | 65.9°F | 4.40 | – | 3 | <1 | 12 h 30 min |
| October | 67°F | 42°F | 54.4°F | 3.41 | – | <1 | 4 | 11 h 10 min |
| November | 56°F | 32°F | 43.9°F | 3.08 | – | <1 | 18 | 10 h |
| December | 45°F | 25°F | 35.1°F | 3.46 | – | <1 | 25 | 9 h 20 min |
| Year (annual) | 65°F | 41°F | 52.9°F | 43.49 | – | 25 | 126 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 5°C | −6°C | −0.4°C | 80 mm |
| February | 7°C | −5°C | 0.9°C | 61 mm |
| March | 11°C | −2°C | 4.8°C | 94 mm |
| April | 18°C | 4°C | 10.9°C | 91 mm |
| May | 23°C | 9°C | 16.2°C | 116 mm |
| June | 28°C | 15°C | 21.2°C | 106 mm |
| July | 30°C | 17°C | 23.4°C | 109 mm |
| August | 29°C | 16°C | 22.7°C | 83 mm |
| September | 26°C | 12°C | 18.8°C | 112 mm |
| October | 19°C | 6°C | 12.4°C | 87 mm |
| November | 13°C | 0°C | 6.6°C | 78 mm |
| December | 7°C | −4°C | 1.7°C | 88 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00188207; 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 Sharpsburg?
Normal highs sit between 65°F and 85°F in 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 USC00188207.
When is the last frost in Sharpsburg?
In Sharpsburg, the last spring frost (32°F) comes after April 26 in half of years and after May 15 in one year in ten; the first autumn frost comes before October 18 in half of years and before October 5 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 261 year in 10 after May 15; 9 in 10 after April 11
- First autumn frost, half of years before
- October 181 year in 10 before October 5; 9 in 10 before November 2
NOAA puts the median frost-free season at 175 days, and the season without a hard freeze (28°F) at 201 days.
A hard freeze (28°F) comes after April 11 in half of springs and before October 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Sharpsburg in zone 7a in ZIP code 21782, the nearest ZIP area.
Frost dates for every NOAA station in Maryland · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00188207; 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 Sharpsburg?
In a normal year in Sharpsburg, 25 days a year reach 90°F and 126 nights fall to 32°F or colder.
- Days at 90°F or more
- 25a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 126a normal year
- Days that stay below freezing
- 13high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00188207.
How sunny is Sharpsburg?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Sharpsburg, 4.0 kWh per square metre a day. July is the sunniest month (79%) and January the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 65% | 2.0 |
| February | 68% | 2.8 |
| March | 68% | 3.8 |
| April | 71% | 4.9 |
| May | 71% | 5.4 |
| June | 77% | 6.1 |
| July | 79% | 6.0 |
| August | 78% | 5.3 |
| September | 75% | 4.3 |
| October | 72% | 3.1 |
| November | 72% | 2.3 |
| December | 66% | 1.7 |
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 Sharpsburg need?
A normal year in Sharpsburg brings 5,274 heating degree days, 2% fewer than the median U.S. place (5,373), and 894 cooling degree days, 2% 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 3,306 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,049 | 0 |
| February | 879 | 0 |
| March | 752 | 0 |
| April | 411 | 11 |
| May | 172 | 52 |
| June | 24 | 177 |
| July | 2 | 288 |
| August | 5 | 248 |
| September | 75 | 102 |
| October | 343 | 15 |
| November | 633 | 0 |
| December | 929 | 0 |
| Year (annual) | 5,274 | 894 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00188207. 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 Sharpsburg been warmer than normal lately?
2021 averaged 54.2°F, 1.3°F above the 1991-2020 normal of 52.9°F.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.2°F | +1.3°F | 44.57 |
Source: observed years: ACIS, station USC00188207. A year counts only with all twelve months complete.
How does Sharpsburg's climate compare?
Sharpsburg is warmer than 3 of the other 25 places with their own NOAA record in Maryland, and wetter than 4. Across the 7,247 U.S. stations with normals, its annual mean of 52.9°F is warmer than 53%.
In the Köppen classification computed from these normals, Sharpsburg 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 Sharpsburg share this climate record?
19 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.
- Ranson, WV6,035 people · 11 mi SW
- Boonsboro, MD3,850 people · 8 mi N
- Lovettsville, VA2,719 people · 10 mi SE
- Shepherdstown, WV1,524 people · 5 mi NW
- Shenandoah Junction, WV1,339 people · 7 mi SW
- Keedysville, MD1,229 people · 6 mi N
- Bolivar, WV989 people · 5 mi S
- Harpers Ferry, WV263 people · 5 mi S
- Garretts Mill, MD201 people · 4 mi SE
- Trego-Rohrersville Station, MD197 people · 3 mi NE
- Burkittsville, MD145 people · 5 mi E
- Rohrersville, MD141 people · 4 mi NE
- Dargan, MD135 people · 2 mi SW
- Mount Briar, MD115 people · 4 mi NE
- Yarrowsburg, MD64 people · 2 mi SE
- Antietam, MD51 people · 1 mi NW
- Brownsville, MD18 people · 3 mi SE
- Gapland, MD9 people · 3 mi E
- Eakles Mill, MD0 people · 5 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.
Questions about Sharpsburg's climate
What is the coldest month in Sharpsburg?
January, with a normal high of 41°F and a normal low of 21°F. The warmest is July (86°F by day, 62°F at night).
What is the rainiest month in Sharpsburg?
May, with 4.57 in of precipitation in a normal year; the driest is February with 2.41 in.
What plant hardiness zone is Sharpsburg in?
The USDA's 2023 map puts Sharpsburg in zone 7a in ZIP code 21782, the nearest ZIP area.
How late can frost come in Sharpsburg?
In half of years the last 32°F night comes after April 26; in one year in ten it comes after May 15. Waiting until May 15 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Maryland climateThe statewide normals and every place in the state
- Martinsburg, WV14 miles from this station, 54.1°F a year
- Frederick, MD15 miles from this station, 57.0°F a year
- Purcellville, VA17 miles from this station, 54.2°F a year
- Smithsburg, MD20 miles from this station, 52.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made